mirror of
https://github.com/umputun/reproxy.git
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revendor
This commit is contained in:
parent
8ea0052228
commit
f47b16e426
20
vendor/github.com/beorn7/perks/LICENSE
generated
vendored
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20
vendor/github.com/beorn7/perks/LICENSE
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vendored
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@ -0,0 +1,20 @@
|
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Copyright (C) 2013 Blake Mizerany
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
2388
vendor/github.com/beorn7/perks/quantile/exampledata.txt
generated
vendored
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2388
vendor/github.com/beorn7/perks/quantile/exampledata.txt
generated
vendored
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File diff suppressed because it is too large
Load Diff
316
vendor/github.com/beorn7/perks/quantile/stream.go
generated
vendored
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316
vendor/github.com/beorn7/perks/quantile/stream.go
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vendored
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|
||||
// Package quantile computes approximate quantiles over an unbounded data
|
||||
// stream within low memory and CPU bounds.
|
||||
//
|
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// A small amount of accuracy is traded to achieve the above properties.
|
||||
//
|
||||
// Multiple streams can be merged before calling Query to generate a single set
|
||||
// of results. This is meaningful when the streams represent the same type of
|
||||
// data. See Merge and Samples.
|
||||
//
|
||||
// For more detailed information about the algorithm used, see:
|
||||
//
|
||||
// Effective Computation of Biased Quantiles over Data Streams
|
||||
//
|
||||
// http://www.cs.rutgers.edu/~muthu/bquant.pdf
|
||||
package quantile
|
||||
|
||||
import (
|
||||
"math"
|
||||
"sort"
|
||||
)
|
||||
|
||||
// Sample holds an observed value and meta information for compression. JSON
|
||||
// tags have been added for convenience.
|
||||
type Sample struct {
|
||||
Value float64 `json:",string"`
|
||||
Width float64 `json:",string"`
|
||||
Delta float64 `json:",string"`
|
||||
}
|
||||
|
||||
// Samples represents a slice of samples. It implements sort.Interface.
|
||||
type Samples []Sample
|
||||
|
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func (a Samples) Len() int { return len(a) }
|
||||
func (a Samples) Less(i, j int) bool { return a[i].Value < a[j].Value }
|
||||
func (a Samples) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
|
||||
|
||||
type invariant func(s *stream, r float64) float64
|
||||
|
||||
// NewLowBiased returns an initialized Stream for low-biased quantiles
|
||||
// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but
|
||||
// error guarantees can still be given even for the lower ranks of the data
|
||||
// distribution.
|
||||
//
|
||||
// The provided epsilon is a relative error, i.e. the true quantile of a value
|
||||
// returned by a query is guaranteed to be within (1±Epsilon)*Quantile.
|
||||
//
|
||||
// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error
|
||||
// properties.
|
||||
func NewLowBiased(epsilon float64) *Stream {
|
||||
ƒ := func(s *stream, r float64) float64 {
|
||||
return 2 * epsilon * r
|
||||
}
|
||||
return newStream(ƒ)
|
||||
}
|
||||
|
||||
// NewHighBiased returns an initialized Stream for high-biased quantiles
|
||||
// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but
|
||||
// error guarantees can still be given even for the higher ranks of the data
|
||||
// distribution.
|
||||
//
|
||||
// The provided epsilon is a relative error, i.e. the true quantile of a value
|
||||
// returned by a query is guaranteed to be within 1-(1±Epsilon)*(1-Quantile).
|
||||
//
|
||||
// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error
|
||||
// properties.
|
||||
func NewHighBiased(epsilon float64) *Stream {
|
||||
ƒ := func(s *stream, r float64) float64 {
|
||||
return 2 * epsilon * (s.n - r)
|
||||
}
|
||||
return newStream(ƒ)
|
||||
}
|
||||
|
||||
// NewTargeted returns an initialized Stream concerned with a particular set of
|
||||
// quantile values that are supplied a priori. Knowing these a priori reduces
|
||||
// space and computation time. The targets map maps the desired quantiles to
|
||||
// their absolute errors, i.e. the true quantile of a value returned by a query
|
||||
// is guaranteed to be within (Quantile±Epsilon).
|
||||
//
|
||||
// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error properties.
|
||||
func NewTargeted(targetMap map[float64]float64) *Stream {
|
||||
// Convert map to slice to avoid slow iterations on a map.
|
||||
// ƒ is called on the hot path, so converting the map to a slice
|
||||
// beforehand results in significant CPU savings.
|
||||
targets := targetMapToSlice(targetMap)
|
||||
|
||||
ƒ := func(s *stream, r float64) float64 {
|
||||
var m = math.MaxFloat64
|
||||
var f float64
|
||||
for _, t := range targets {
|
||||
if t.quantile*s.n <= r {
|
||||
f = (2 * t.epsilon * r) / t.quantile
|
||||
} else {
|
||||
f = (2 * t.epsilon * (s.n - r)) / (1 - t.quantile)
|
||||
}
|
||||
if f < m {
|
||||
m = f
|
||||
}
|
||||
}
|
||||
return m
|
||||
}
|
||||
return newStream(ƒ)
|
||||
}
|
||||
|
||||
type target struct {
|
||||
quantile float64
|
||||
epsilon float64
|
||||
}
|
||||
|
||||
func targetMapToSlice(targetMap map[float64]float64) []target {
|
||||
targets := make([]target, 0, len(targetMap))
|
||||
|
||||
for quantile, epsilon := range targetMap {
|
||||
t := target{
|
||||
quantile: quantile,
|
||||
epsilon: epsilon,
|
||||
}
|
||||
targets = append(targets, t)
|
||||
}
|
||||
|
||||
return targets
|
||||
}
|
||||
|
||||
// Stream computes quantiles for a stream of float64s. It is not thread-safe by
|
||||
// design. Take care when using across multiple goroutines.
|
||||
type Stream struct {
|
||||
*stream
|
||||
b Samples
|
||||
sorted bool
|
||||
}
|
||||
|
||||
func newStream(ƒ invariant) *Stream {
|
||||
x := &stream{ƒ: ƒ}
|
||||
return &Stream{x, make(Samples, 0, 500), true}
|
||||
}
|
||||
|
||||
// Insert inserts v into the stream.
|
||||
func (s *Stream) Insert(v float64) {
|
||||
s.insert(Sample{Value: v, Width: 1})
|
||||
}
|
||||
|
||||
func (s *Stream) insert(sample Sample) {
|
||||
s.b = append(s.b, sample)
|
||||
s.sorted = false
|
||||
if len(s.b) == cap(s.b) {
|
||||
s.flush()
|
||||
}
|
||||
}
|
||||
|
||||
// Query returns the computed qth percentiles value. If s was created with
|
||||
// NewTargeted, and q is not in the set of quantiles provided a priori, Query
|
||||
// will return an unspecified result.
|
||||
func (s *Stream) Query(q float64) float64 {
|
||||
if !s.flushed() {
|
||||
// Fast path when there hasn't been enough data for a flush;
|
||||
// this also yields better accuracy for small sets of data.
|
||||
l := len(s.b)
|
||||
if l == 0 {
|
||||
return 0
|
||||
}
|
||||
i := int(math.Ceil(float64(l) * q))
|
||||
if i > 0 {
|
||||
i -= 1
|
||||
}
|
||||
s.maybeSort()
|
||||
return s.b[i].Value
|
||||
}
|
||||
s.flush()
|
||||
return s.stream.query(q)
|
||||
}
|
||||
|
||||
// Merge merges samples into the underlying streams samples. This is handy when
|
||||
// merging multiple streams from separate threads, database shards, etc.
|
||||
//
|
||||
// ATTENTION: This method is broken and does not yield correct results. The
|
||||
// underlying algorithm is not capable of merging streams correctly.
|
||||
func (s *Stream) Merge(samples Samples) {
|
||||
sort.Sort(samples)
|
||||
s.stream.merge(samples)
|
||||
}
|
||||
|
||||
// Reset reinitializes and clears the list reusing the samples buffer memory.
|
||||
func (s *Stream) Reset() {
|
||||
s.stream.reset()
|
||||
s.b = s.b[:0]
|
||||
}
|
||||
|
||||
// Samples returns stream samples held by s.
|
||||
func (s *Stream) Samples() Samples {
|
||||
if !s.flushed() {
|
||||
return s.b
|
||||
}
|
||||
s.flush()
|
||||
return s.stream.samples()
|
||||
}
|
||||
|
||||
// Count returns the total number of samples observed in the stream
|
||||
// since initialization.
|
||||
func (s *Stream) Count() int {
|
||||
return len(s.b) + s.stream.count()
|
||||
}
|
||||
|
||||
func (s *Stream) flush() {
|
||||
s.maybeSort()
|
||||
s.stream.merge(s.b)
|
||||
s.b = s.b[:0]
|
||||
}
|
||||
|
||||
func (s *Stream) maybeSort() {
|
||||
if !s.sorted {
|
||||
s.sorted = true
|
||||
sort.Sort(s.b)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *Stream) flushed() bool {
|
||||
return len(s.stream.l) > 0
|
||||
}
|
||||
|
||||
type stream struct {
|
||||
n float64
|
||||
l []Sample
|
||||
ƒ invariant
|
||||
}
|
||||
|
||||
func (s *stream) reset() {
|
||||
s.l = s.l[:0]
|
||||
s.n = 0
|
||||
}
|
||||
|
||||
func (s *stream) insert(v float64) {
|
||||
s.merge(Samples{{v, 1, 0}})
|
||||
}
|
||||
|
||||
func (s *stream) merge(samples Samples) {
|
||||
// TODO(beorn7): This tries to merge not only individual samples, but
|
||||
// whole summaries. The paper doesn't mention merging summaries at
|
||||
// all. Unittests show that the merging is inaccurate. Find out how to
|
||||
// do merges properly.
|
||||
var r float64
|
||||
i := 0
|
||||
for _, sample := range samples {
|
||||
for ; i < len(s.l); i++ {
|
||||
c := s.l[i]
|
||||
if c.Value > sample.Value {
|
||||
// Insert at position i.
|
||||
s.l = append(s.l, Sample{})
|
||||
copy(s.l[i+1:], s.l[i:])
|
||||
s.l[i] = Sample{
|
||||
sample.Value,
|
||||
sample.Width,
|
||||
math.Max(sample.Delta, math.Floor(s.ƒ(s, r))-1),
|
||||
// TODO(beorn7): How to calculate delta correctly?
|
||||
}
|
||||
i++
|
||||
goto inserted
|
||||
}
|
||||
r += c.Width
|
||||
}
|
||||
s.l = append(s.l, Sample{sample.Value, sample.Width, 0})
|
||||
i++
|
||||
inserted:
|
||||
s.n += sample.Width
|
||||
r += sample.Width
|
||||
}
|
||||
s.compress()
|
||||
}
|
||||
|
||||
func (s *stream) count() int {
|
||||
return int(s.n)
|
||||
}
|
||||
|
||||
func (s *stream) query(q float64) float64 {
|
||||
t := math.Ceil(q * s.n)
|
||||
t += math.Ceil(s.ƒ(s, t) / 2)
|
||||
p := s.l[0]
|
||||
var r float64
|
||||
for _, c := range s.l[1:] {
|
||||
r += p.Width
|
||||
if r+c.Width+c.Delta > t {
|
||||
return p.Value
|
||||
}
|
||||
p = c
|
||||
}
|
||||
return p.Value
|
||||
}
|
||||
|
||||
func (s *stream) compress() {
|
||||
if len(s.l) < 2 {
|
||||
return
|
||||
}
|
||||
x := s.l[len(s.l)-1]
|
||||
xi := len(s.l) - 1
|
||||
r := s.n - 1 - x.Width
|
||||
|
||||
for i := len(s.l) - 2; i >= 0; i-- {
|
||||
c := s.l[i]
|
||||
if c.Width+x.Width+x.Delta <= s.ƒ(s, r) {
|
||||
x.Width += c.Width
|
||||
s.l[xi] = x
|
||||
// Remove element at i.
|
||||
copy(s.l[i:], s.l[i+1:])
|
||||
s.l = s.l[:len(s.l)-1]
|
||||
xi -= 1
|
||||
} else {
|
||||
x = c
|
||||
xi = i
|
||||
}
|
||||
r -= c.Width
|
||||
}
|
||||
}
|
||||
|
||||
func (s *stream) samples() Samples {
|
||||
samples := make(Samples, len(s.l))
|
||||
copy(samples, s.l)
|
||||
return samples
|
||||
}
|
8
vendor/github.com/cespare/xxhash/v2/.travis.yml
generated
vendored
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8
vendor/github.com/cespare/xxhash/v2/.travis.yml
generated
vendored
Normal file
@ -0,0 +1,8 @@
|
||||
language: go
|
||||
go:
|
||||
- "1.x"
|
||||
- master
|
||||
env:
|
||||
- TAGS=""
|
||||
- TAGS="-tags purego"
|
||||
script: go test $TAGS -v ./...
|
22
vendor/github.com/cespare/xxhash/v2/LICENSE.txt
generated
vendored
Normal file
22
vendor/github.com/cespare/xxhash/v2/LICENSE.txt
generated
vendored
Normal file
@ -0,0 +1,22 @@
|
||||
Copyright (c) 2016 Caleb Spare
|
||||
|
||||
MIT License
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
67
vendor/github.com/cespare/xxhash/v2/README.md
generated
vendored
Normal file
67
vendor/github.com/cespare/xxhash/v2/README.md
generated
vendored
Normal file
@ -0,0 +1,67 @@
|
||||
# xxhash
|
||||
|
||||
[![GoDoc](https://godoc.org/github.com/cespare/xxhash?status.svg)](https://godoc.org/github.com/cespare/xxhash)
|
||||
[![Build Status](https://travis-ci.org/cespare/xxhash.svg?branch=master)](https://travis-ci.org/cespare/xxhash)
|
||||
|
||||
xxhash is a Go implementation of the 64-bit
|
||||
[xxHash](http://cyan4973.github.io/xxHash/) algorithm, XXH64. This is a
|
||||
high-quality hashing algorithm that is much faster than anything in the Go
|
||||
standard library.
|
||||
|
||||
This package provides a straightforward API:
|
||||
|
||||
```
|
||||
func Sum64(b []byte) uint64
|
||||
func Sum64String(s string) uint64
|
||||
type Digest struct{ ... }
|
||||
func New() *Digest
|
||||
```
|
||||
|
||||
The `Digest` type implements hash.Hash64. Its key methods are:
|
||||
|
||||
```
|
||||
func (*Digest) Write([]byte) (int, error)
|
||||
func (*Digest) WriteString(string) (int, error)
|
||||
func (*Digest) Sum64() uint64
|
||||
```
|
||||
|
||||
This implementation provides a fast pure-Go implementation and an even faster
|
||||
assembly implementation for amd64.
|
||||
|
||||
## Compatibility
|
||||
|
||||
This package is in a module and the latest code is in version 2 of the module.
|
||||
You need a version of Go with at least "minimal module compatibility" to use
|
||||
github.com/cespare/xxhash/v2:
|
||||
|
||||
* 1.9.7+ for Go 1.9
|
||||
* 1.10.3+ for Go 1.10
|
||||
* Go 1.11 or later
|
||||
|
||||
I recommend using the latest release of Go.
|
||||
|
||||
## Benchmarks
|
||||
|
||||
Here are some quick benchmarks comparing the pure-Go and assembly
|
||||
implementations of Sum64.
|
||||
|
||||
| input size | purego | asm |
|
||||
| --- | --- | --- |
|
||||
| 5 B | 979.66 MB/s | 1291.17 MB/s |
|
||||
| 100 B | 7475.26 MB/s | 7973.40 MB/s |
|
||||
| 4 KB | 17573.46 MB/s | 17602.65 MB/s |
|
||||
| 10 MB | 17131.46 MB/s | 17142.16 MB/s |
|
||||
|
||||
These numbers were generated on Ubuntu 18.04 with an Intel i7-8700K CPU using
|
||||
the following commands under Go 1.11.2:
|
||||
|
||||
```
|
||||
$ go test -tags purego -benchtime 10s -bench '/xxhash,direct,bytes'
|
||||
$ go test -benchtime 10s -bench '/xxhash,direct,bytes'
|
||||
```
|
||||
|
||||
## Projects using this package
|
||||
|
||||
- [InfluxDB](https://github.com/influxdata/influxdb)
|
||||
- [Prometheus](https://github.com/prometheus/prometheus)
|
||||
- [FreeCache](https://github.com/coocood/freecache)
|
3
vendor/github.com/cespare/xxhash/v2/go.mod
generated
vendored
Normal file
3
vendor/github.com/cespare/xxhash/v2/go.mod
generated
vendored
Normal file
@ -0,0 +1,3 @@
|
||||
module github.com/cespare/xxhash/v2
|
||||
|
||||
go 1.11
|
0
vendor/github.com/cespare/xxhash/v2/go.sum
generated
vendored
Normal file
0
vendor/github.com/cespare/xxhash/v2/go.sum
generated
vendored
Normal file
236
vendor/github.com/cespare/xxhash/v2/xxhash.go
generated
vendored
Normal file
236
vendor/github.com/cespare/xxhash/v2/xxhash.go
generated
vendored
Normal file
@ -0,0 +1,236 @@
|
||||
// Package xxhash implements the 64-bit variant of xxHash (XXH64) as described
|
||||
// at http://cyan4973.github.io/xxHash/.
|
||||
package xxhash
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"math/bits"
|
||||
)
|
||||
|
||||
const (
|
||||
prime1 uint64 = 11400714785074694791
|
||||
prime2 uint64 = 14029467366897019727
|
||||
prime3 uint64 = 1609587929392839161
|
||||
prime4 uint64 = 9650029242287828579
|
||||
prime5 uint64 = 2870177450012600261
|
||||
)
|
||||
|
||||
// NOTE(caleb): I'm using both consts and vars of the primes. Using consts where
|
||||
// possible in the Go code is worth a small (but measurable) performance boost
|
||||
// by avoiding some MOVQs. Vars are needed for the asm and also are useful for
|
||||
// convenience in the Go code in a few places where we need to intentionally
|
||||
// avoid constant arithmetic (e.g., v1 := prime1 + prime2 fails because the
|
||||
// result overflows a uint64).
|
||||
var (
|
||||
prime1v = prime1
|
||||
prime2v = prime2
|
||||
prime3v = prime3
|
||||
prime4v = prime4
|
||||
prime5v = prime5
|
||||
)
|
||||
|
||||
// Digest implements hash.Hash64.
|
||||
type Digest struct {
|
||||
v1 uint64
|
||||
v2 uint64
|
||||
v3 uint64
|
||||
v4 uint64
|
||||
total uint64
|
||||
mem [32]byte
|
||||
n int // how much of mem is used
|
||||
}
|
||||
|
||||
// New creates a new Digest that computes the 64-bit xxHash algorithm.
|
||||
func New() *Digest {
|
||||
var d Digest
|
||||
d.Reset()
|
||||
return &d
|
||||
}
|
||||
|
||||
// Reset clears the Digest's state so that it can be reused.
|
||||
func (d *Digest) Reset() {
|
||||
d.v1 = prime1v + prime2
|
||||
d.v2 = prime2
|
||||
d.v3 = 0
|
||||
d.v4 = -prime1v
|
||||
d.total = 0
|
||||
d.n = 0
|
||||
}
|
||||
|
||||
// Size always returns 8 bytes.
|
||||
func (d *Digest) Size() int { return 8 }
|
||||
|
||||
// BlockSize always returns 32 bytes.
|
||||
func (d *Digest) BlockSize() int { return 32 }
|
||||
|
||||
// Write adds more data to d. It always returns len(b), nil.
|
||||
func (d *Digest) Write(b []byte) (n int, err error) {
|
||||
n = len(b)
|
||||
d.total += uint64(n)
|
||||
|
||||
if d.n+n < 32 {
|
||||
// This new data doesn't even fill the current block.
|
||||
copy(d.mem[d.n:], b)
|
||||
d.n += n
|
||||
return
|
||||
}
|
||||
|
||||
if d.n > 0 {
|
||||
// Finish off the partial block.
|
||||
copy(d.mem[d.n:], b)
|
||||
d.v1 = round(d.v1, u64(d.mem[0:8]))
|
||||
d.v2 = round(d.v2, u64(d.mem[8:16]))
|
||||
d.v3 = round(d.v3, u64(d.mem[16:24]))
|
||||
d.v4 = round(d.v4, u64(d.mem[24:32]))
|
||||
b = b[32-d.n:]
|
||||
d.n = 0
|
||||
}
|
||||
|
||||
if len(b) >= 32 {
|
||||
// One or more full blocks left.
|
||||
nw := writeBlocks(d, b)
|
||||
b = b[nw:]
|
||||
}
|
||||
|
||||
// Store any remaining partial block.
|
||||
copy(d.mem[:], b)
|
||||
d.n = len(b)
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
// Sum appends the current hash to b and returns the resulting slice.
|
||||
func (d *Digest) Sum(b []byte) []byte {
|
||||
s := d.Sum64()
|
||||
return append(
|
||||
b,
|
||||
byte(s>>56),
|
||||
byte(s>>48),
|
||||
byte(s>>40),
|
||||
byte(s>>32),
|
||||
byte(s>>24),
|
||||
byte(s>>16),
|
||||
byte(s>>8),
|
||||
byte(s),
|
||||
)
|
||||
}
|
||||
|
||||
// Sum64 returns the current hash.
|
||||
func (d *Digest) Sum64() uint64 {
|
||||
var h uint64
|
||||
|
||||
if d.total >= 32 {
|
||||
v1, v2, v3, v4 := d.v1, d.v2, d.v3, d.v4
|
||||
h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4)
|
||||
h = mergeRound(h, v1)
|
||||
h = mergeRound(h, v2)
|
||||
h = mergeRound(h, v3)
|
||||
h = mergeRound(h, v4)
|
||||
} else {
|
||||
h = d.v3 + prime5
|
||||
}
|
||||
|
||||
h += d.total
|
||||
|
||||
i, end := 0, d.n
|
||||
for ; i+8 <= end; i += 8 {
|
||||
k1 := round(0, u64(d.mem[i:i+8]))
|
||||
h ^= k1
|
||||
h = rol27(h)*prime1 + prime4
|
||||
}
|
||||
if i+4 <= end {
|
||||
h ^= uint64(u32(d.mem[i:i+4])) * prime1
|
||||
h = rol23(h)*prime2 + prime3
|
||||
i += 4
|
||||
}
|
||||
for i < end {
|
||||
h ^= uint64(d.mem[i]) * prime5
|
||||
h = rol11(h) * prime1
|
||||
i++
|
||||
}
|
||||
|
||||
h ^= h >> 33
|
||||
h *= prime2
|
||||
h ^= h >> 29
|
||||
h *= prime3
|
||||
h ^= h >> 32
|
||||
|
||||
return h
|
||||
}
|
||||
|
||||
const (
|
||||
magic = "xxh\x06"
|
||||
marshaledSize = len(magic) + 8*5 + 32
|
||||
)
|
||||
|
||||
// MarshalBinary implements the encoding.BinaryMarshaler interface.
|
||||
func (d *Digest) MarshalBinary() ([]byte, error) {
|
||||
b := make([]byte, 0, marshaledSize)
|
||||
b = append(b, magic...)
|
||||
b = appendUint64(b, d.v1)
|
||||
b = appendUint64(b, d.v2)
|
||||
b = appendUint64(b, d.v3)
|
||||
b = appendUint64(b, d.v4)
|
||||
b = appendUint64(b, d.total)
|
||||
b = append(b, d.mem[:d.n]...)
|
||||
b = b[:len(b)+len(d.mem)-d.n]
|
||||
return b, nil
|
||||
}
|
||||
|
||||
// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
|
||||
func (d *Digest) UnmarshalBinary(b []byte) error {
|
||||
if len(b) < len(magic) || string(b[:len(magic)]) != magic {
|
||||
return errors.New("xxhash: invalid hash state identifier")
|
||||
}
|
||||
if len(b) != marshaledSize {
|
||||
return errors.New("xxhash: invalid hash state size")
|
||||
}
|
||||
b = b[len(magic):]
|
||||
b, d.v1 = consumeUint64(b)
|
||||
b, d.v2 = consumeUint64(b)
|
||||
b, d.v3 = consumeUint64(b)
|
||||
b, d.v4 = consumeUint64(b)
|
||||
b, d.total = consumeUint64(b)
|
||||
copy(d.mem[:], b)
|
||||
b = b[len(d.mem):]
|
||||
d.n = int(d.total % uint64(len(d.mem)))
|
||||
return nil
|
||||
}
|
||||
|
||||
func appendUint64(b []byte, x uint64) []byte {
|
||||
var a [8]byte
|
||||
binary.LittleEndian.PutUint64(a[:], x)
|
||||
return append(b, a[:]...)
|
||||
}
|
||||
|
||||
func consumeUint64(b []byte) ([]byte, uint64) {
|
||||
x := u64(b)
|
||||
return b[8:], x
|
||||
}
|
||||
|
||||
func u64(b []byte) uint64 { return binary.LittleEndian.Uint64(b) }
|
||||
func u32(b []byte) uint32 { return binary.LittleEndian.Uint32(b) }
|
||||
|
||||
func round(acc, input uint64) uint64 {
|
||||
acc += input * prime2
|
||||
acc = rol31(acc)
|
||||
acc *= prime1
|
||||
return acc
|
||||
}
|
||||
|
||||
func mergeRound(acc, val uint64) uint64 {
|
||||
val = round(0, val)
|
||||
acc ^= val
|
||||
acc = acc*prime1 + prime4
|
||||
return acc
|
||||
}
|
||||
|
||||
func rol1(x uint64) uint64 { return bits.RotateLeft64(x, 1) }
|
||||
func rol7(x uint64) uint64 { return bits.RotateLeft64(x, 7) }
|
||||
func rol11(x uint64) uint64 { return bits.RotateLeft64(x, 11) }
|
||||
func rol12(x uint64) uint64 { return bits.RotateLeft64(x, 12) }
|
||||
func rol18(x uint64) uint64 { return bits.RotateLeft64(x, 18) }
|
||||
func rol23(x uint64) uint64 { return bits.RotateLeft64(x, 23) }
|
||||
func rol27(x uint64) uint64 { return bits.RotateLeft64(x, 27) }
|
||||
func rol31(x uint64) uint64 { return bits.RotateLeft64(x, 31) }
|
13
vendor/github.com/cespare/xxhash/v2/xxhash_amd64.go
generated
vendored
Normal file
13
vendor/github.com/cespare/xxhash/v2/xxhash_amd64.go
generated
vendored
Normal file
@ -0,0 +1,13 @@
|
||||
// +build !appengine
|
||||
// +build gc
|
||||
// +build !purego
|
||||
|
||||
package xxhash
|
||||
|
||||
// Sum64 computes the 64-bit xxHash digest of b.
|
||||
//
|
||||
//go:noescape
|
||||
func Sum64(b []byte) uint64
|
||||
|
||||
//go:noescape
|
||||
func writeBlocks(d *Digest, b []byte) int
|
215
vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s
generated
vendored
Normal file
215
vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s
generated
vendored
Normal file
@ -0,0 +1,215 @@
|
||||
// +build !appengine
|
||||
// +build gc
|
||||
// +build !purego
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// Register allocation:
|
||||
// AX h
|
||||
// CX pointer to advance through b
|
||||
// DX n
|
||||
// BX loop end
|
||||
// R8 v1, k1
|
||||
// R9 v2
|
||||
// R10 v3
|
||||
// R11 v4
|
||||
// R12 tmp
|
||||
// R13 prime1v
|
||||
// R14 prime2v
|
||||
// R15 prime4v
|
||||
|
||||
// round reads from and advances the buffer pointer in CX.
|
||||
// It assumes that R13 has prime1v and R14 has prime2v.
|
||||
#define round(r) \
|
||||
MOVQ (CX), R12 \
|
||||
ADDQ $8, CX \
|
||||
IMULQ R14, R12 \
|
||||
ADDQ R12, r \
|
||||
ROLQ $31, r \
|
||||
IMULQ R13, r
|
||||
|
||||
// mergeRound applies a merge round on the two registers acc and val.
|
||||
// It assumes that R13 has prime1v, R14 has prime2v, and R15 has prime4v.
|
||||
#define mergeRound(acc, val) \
|
||||
IMULQ R14, val \
|
||||
ROLQ $31, val \
|
||||
IMULQ R13, val \
|
||||
XORQ val, acc \
|
||||
IMULQ R13, acc \
|
||||
ADDQ R15, acc
|
||||
|
||||
// func Sum64(b []byte) uint64
|
||||
TEXT ·Sum64(SB), NOSPLIT, $0-32
|
||||
// Load fixed primes.
|
||||
MOVQ ·prime1v(SB), R13
|
||||
MOVQ ·prime2v(SB), R14
|
||||
MOVQ ·prime4v(SB), R15
|
||||
|
||||
// Load slice.
|
||||
MOVQ b_base+0(FP), CX
|
||||
MOVQ b_len+8(FP), DX
|
||||
LEAQ (CX)(DX*1), BX
|
||||
|
||||
// The first loop limit will be len(b)-32.
|
||||
SUBQ $32, BX
|
||||
|
||||
// Check whether we have at least one block.
|
||||
CMPQ DX, $32
|
||||
JLT noBlocks
|
||||
|
||||
// Set up initial state (v1, v2, v3, v4).
|
||||
MOVQ R13, R8
|
||||
ADDQ R14, R8
|
||||
MOVQ R14, R9
|
||||
XORQ R10, R10
|
||||
XORQ R11, R11
|
||||
SUBQ R13, R11
|
||||
|
||||
// Loop until CX > BX.
|
||||
blockLoop:
|
||||
round(R8)
|
||||
round(R9)
|
||||
round(R10)
|
||||
round(R11)
|
||||
|
||||
CMPQ CX, BX
|
||||
JLE blockLoop
|
||||
|
||||
MOVQ R8, AX
|
||||
ROLQ $1, AX
|
||||
MOVQ R9, R12
|
||||
ROLQ $7, R12
|
||||
ADDQ R12, AX
|
||||
MOVQ R10, R12
|
||||
ROLQ $12, R12
|
||||
ADDQ R12, AX
|
||||
MOVQ R11, R12
|
||||
ROLQ $18, R12
|
||||
ADDQ R12, AX
|
||||
|
||||
mergeRound(AX, R8)
|
||||
mergeRound(AX, R9)
|
||||
mergeRound(AX, R10)
|
||||
mergeRound(AX, R11)
|
||||
|
||||
JMP afterBlocks
|
||||
|
||||
noBlocks:
|
||||
MOVQ ·prime5v(SB), AX
|
||||
|
||||
afterBlocks:
|
||||
ADDQ DX, AX
|
||||
|
||||
// Right now BX has len(b)-32, and we want to loop until CX > len(b)-8.
|
||||
ADDQ $24, BX
|
||||
|
||||
CMPQ CX, BX
|
||||
JG fourByte
|
||||
|
||||
wordLoop:
|
||||
// Calculate k1.
|
||||
MOVQ (CX), R8
|
||||
ADDQ $8, CX
|
||||
IMULQ R14, R8
|
||||
ROLQ $31, R8
|
||||
IMULQ R13, R8
|
||||
|
||||
XORQ R8, AX
|
||||
ROLQ $27, AX
|
||||
IMULQ R13, AX
|
||||
ADDQ R15, AX
|
||||
|
||||
CMPQ CX, BX
|
||||
JLE wordLoop
|
||||
|
||||
fourByte:
|
||||
ADDQ $4, BX
|
||||
CMPQ CX, BX
|
||||
JG singles
|
||||
|
||||
MOVL (CX), R8
|
||||
ADDQ $4, CX
|
||||
IMULQ R13, R8
|
||||
XORQ R8, AX
|
||||
|
||||
ROLQ $23, AX
|
||||
IMULQ R14, AX
|
||||
ADDQ ·prime3v(SB), AX
|
||||
|
||||
singles:
|
||||
ADDQ $4, BX
|
||||
CMPQ CX, BX
|
||||
JGE finalize
|
||||
|
||||
singlesLoop:
|
||||
MOVBQZX (CX), R12
|
||||
ADDQ $1, CX
|
||||
IMULQ ·prime5v(SB), R12
|
||||
XORQ R12, AX
|
||||
|
||||
ROLQ $11, AX
|
||||
IMULQ R13, AX
|
||||
|
||||
CMPQ CX, BX
|
||||
JL singlesLoop
|
||||
|
||||
finalize:
|
||||
MOVQ AX, R12
|
||||
SHRQ $33, R12
|
||||
XORQ R12, AX
|
||||
IMULQ R14, AX
|
||||
MOVQ AX, R12
|
||||
SHRQ $29, R12
|
||||
XORQ R12, AX
|
||||
IMULQ ·prime3v(SB), AX
|
||||
MOVQ AX, R12
|
||||
SHRQ $32, R12
|
||||
XORQ R12, AX
|
||||
|
||||
MOVQ AX, ret+24(FP)
|
||||
RET
|
||||
|
||||
// writeBlocks uses the same registers as above except that it uses AX to store
|
||||
// the d pointer.
|
||||
|
||||
// func writeBlocks(d *Digest, b []byte) int
|
||||
TEXT ·writeBlocks(SB), NOSPLIT, $0-40
|
||||
// Load fixed primes needed for round.
|
||||
MOVQ ·prime1v(SB), R13
|
||||
MOVQ ·prime2v(SB), R14
|
||||
|
||||
// Load slice.
|
||||
MOVQ b_base+8(FP), CX
|
||||
MOVQ b_len+16(FP), DX
|
||||
LEAQ (CX)(DX*1), BX
|
||||
SUBQ $32, BX
|
||||
|
||||
// Load vN from d.
|
||||
MOVQ d+0(FP), AX
|
||||
MOVQ 0(AX), R8 // v1
|
||||
MOVQ 8(AX), R9 // v2
|
||||
MOVQ 16(AX), R10 // v3
|
||||
MOVQ 24(AX), R11 // v4
|
||||
|
||||
// We don't need to check the loop condition here; this function is
|
||||
// always called with at least one block of data to process.
|
||||
blockLoop:
|
||||
round(R8)
|
||||
round(R9)
|
||||
round(R10)
|
||||
round(R11)
|
||||
|
||||
CMPQ CX, BX
|
||||
JLE blockLoop
|
||||
|
||||
// Copy vN back to d.
|
||||
MOVQ R8, 0(AX)
|
||||
MOVQ R9, 8(AX)
|
||||
MOVQ R10, 16(AX)
|
||||
MOVQ R11, 24(AX)
|
||||
|
||||
// The number of bytes written is CX minus the old base pointer.
|
||||
SUBQ b_base+8(FP), CX
|
||||
MOVQ CX, ret+32(FP)
|
||||
|
||||
RET
|
76
vendor/github.com/cespare/xxhash/v2/xxhash_other.go
generated
vendored
Normal file
76
vendor/github.com/cespare/xxhash/v2/xxhash_other.go
generated
vendored
Normal file
@ -0,0 +1,76 @@
|
||||
// +build !amd64 appengine !gc purego
|
||||
|
||||
package xxhash
|
||||
|
||||
// Sum64 computes the 64-bit xxHash digest of b.
|
||||
func Sum64(b []byte) uint64 {
|
||||
// A simpler version would be
|
||||
// d := New()
|
||||
// d.Write(b)
|
||||
// return d.Sum64()
|
||||
// but this is faster, particularly for small inputs.
|
||||
|
||||
n := len(b)
|
||||
var h uint64
|
||||
|
||||
if n >= 32 {
|
||||
v1 := prime1v + prime2
|
||||
v2 := prime2
|
||||
v3 := uint64(0)
|
||||
v4 := -prime1v
|
||||
for len(b) >= 32 {
|
||||
v1 = round(v1, u64(b[0:8:len(b)]))
|
||||
v2 = round(v2, u64(b[8:16:len(b)]))
|
||||
v3 = round(v3, u64(b[16:24:len(b)]))
|
||||
v4 = round(v4, u64(b[24:32:len(b)]))
|
||||
b = b[32:len(b):len(b)]
|
||||
}
|
||||
h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4)
|
||||
h = mergeRound(h, v1)
|
||||
h = mergeRound(h, v2)
|
||||
h = mergeRound(h, v3)
|
||||
h = mergeRound(h, v4)
|
||||
} else {
|
||||
h = prime5
|
||||
}
|
||||
|
||||
h += uint64(n)
|
||||
|
||||
i, end := 0, len(b)
|
||||
for ; i+8 <= end; i += 8 {
|
||||
k1 := round(0, u64(b[i:i+8:len(b)]))
|
||||
h ^= k1
|
||||
h = rol27(h)*prime1 + prime4
|
||||
}
|
||||
if i+4 <= end {
|
||||
h ^= uint64(u32(b[i:i+4:len(b)])) * prime1
|
||||
h = rol23(h)*prime2 + prime3
|
||||
i += 4
|
||||
}
|
||||
for ; i < end; i++ {
|
||||
h ^= uint64(b[i]) * prime5
|
||||
h = rol11(h) * prime1
|
||||
}
|
||||
|
||||
h ^= h >> 33
|
||||
h *= prime2
|
||||
h ^= h >> 29
|
||||
h *= prime3
|
||||
h ^= h >> 32
|
||||
|
||||
return h
|
||||
}
|
||||
|
||||
func writeBlocks(d *Digest, b []byte) int {
|
||||
v1, v2, v3, v4 := d.v1, d.v2, d.v3, d.v4
|
||||
n := len(b)
|
||||
for len(b) >= 32 {
|
||||
v1 = round(v1, u64(b[0:8:len(b)]))
|
||||
v2 = round(v2, u64(b[8:16:len(b)]))
|
||||
v3 = round(v3, u64(b[16:24:len(b)]))
|
||||
v4 = round(v4, u64(b[24:32:len(b)]))
|
||||
b = b[32:len(b):len(b)]
|
||||
}
|
||||
d.v1, d.v2, d.v3, d.v4 = v1, v2, v3, v4
|
||||
return n - len(b)
|
||||
}
|
15
vendor/github.com/cespare/xxhash/v2/xxhash_safe.go
generated
vendored
Normal file
15
vendor/github.com/cespare/xxhash/v2/xxhash_safe.go
generated
vendored
Normal file
@ -0,0 +1,15 @@
|
||||
// +build appengine
|
||||
|
||||
// This file contains the safe implementations of otherwise unsafe-using code.
|
||||
|
||||
package xxhash
|
||||
|
||||
// Sum64String computes the 64-bit xxHash digest of s.
|
||||
func Sum64String(s string) uint64 {
|
||||
return Sum64([]byte(s))
|
||||
}
|
||||
|
||||
// WriteString adds more data to d. It always returns len(s), nil.
|
||||
func (d *Digest) WriteString(s string) (n int, err error) {
|
||||
return d.Write([]byte(s))
|
||||
}
|
46
vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go
generated
vendored
Normal file
46
vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go
generated
vendored
Normal file
@ -0,0 +1,46 @@
|
||||
// +build !appengine
|
||||
|
||||
// This file encapsulates usage of unsafe.
|
||||
// xxhash_safe.go contains the safe implementations.
|
||||
|
||||
package xxhash
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// Notes:
|
||||
//
|
||||
// See https://groups.google.com/d/msg/golang-nuts/dcjzJy-bSpw/tcZYBzQqAQAJ
|
||||
// for some discussion about these unsafe conversions.
|
||||
//
|
||||
// In the future it's possible that compiler optimizations will make these
|
||||
// unsafe operations unnecessary: https://golang.org/issue/2205.
|
||||
//
|
||||
// Both of these wrapper functions still incur function call overhead since they
|
||||
// will not be inlined. We could write Go/asm copies of Sum64 and Digest.Write
|
||||
// for strings to squeeze out a bit more speed. Mid-stack inlining should
|
||||
// eventually fix this.
|
||||
|
||||
// Sum64String computes the 64-bit xxHash digest of s.
|
||||
// It may be faster than Sum64([]byte(s)) by avoiding a copy.
|
||||
func Sum64String(s string) uint64 {
|
||||
var b []byte
|
||||
bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
|
||||
bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
|
||||
bh.Len = len(s)
|
||||
bh.Cap = len(s)
|
||||
return Sum64(b)
|
||||
}
|
||||
|
||||
// WriteString adds more data to d. It always returns len(s), nil.
|
||||
// It may be faster than Write([]byte(s)) by avoiding a copy.
|
||||
func (d *Digest) WriteString(s string) (n int, err error) {
|
||||
var b []byte
|
||||
bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
|
||||
bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
|
||||
bh.Len = len(s)
|
||||
bh.Cap = len(s)
|
||||
return d.Write(b)
|
||||
}
|
2
vendor/github.com/davecgh/go-spew/LICENSE
generated
vendored
2
vendor/github.com/davecgh/go-spew/LICENSE
generated
vendored
@ -2,7 +2,7 @@ ISC License
|
||||
|
||||
Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
|
||||
|
||||
Permission to use, copy, modify, and distribute this software for any
|
||||
Permission to use, copy, modify, and/or distribute this software for any
|
||||
purpose with or without fee is hereby granted, provided that the above
|
||||
copyright notice and this permission notice appear in all copies.
|
||||
|
||||
|
187
vendor/github.com/davecgh/go-spew/spew/bypass.go
generated
vendored
187
vendor/github.com/davecgh/go-spew/spew/bypass.go
generated
vendored
@ -16,7 +16,9 @@
|
||||
// when the code is not running on Google App Engine, compiled by GopherJS, and
|
||||
// "-tags safe" is not added to the go build command line. The "disableunsafe"
|
||||
// tag is deprecated and thus should not be used.
|
||||
// +build !js,!appengine,!safe,!disableunsafe
|
||||
// Go versions prior to 1.4 are disabled because they use a different layout
|
||||
// for interfaces which make the implementation of unsafeReflectValue more complex.
|
||||
// +build !js,!appengine,!safe,!disableunsafe,go1.4
|
||||
|
||||
package spew
|
||||
|
||||
@ -34,80 +36,49 @@ const (
|
||||
ptrSize = unsafe.Sizeof((*byte)(nil))
|
||||
)
|
||||
|
||||
var (
|
||||
// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
|
||||
// internal reflect.Value fields. These values are valid before golang
|
||||
// commit ecccf07e7f9d which changed the format. The are also valid
|
||||
// after commit 82f48826c6c7 which changed the format again to mirror
|
||||
// the original format. Code in the init function updates these offsets
|
||||
// as necessary.
|
||||
offsetPtr = uintptr(ptrSize)
|
||||
offsetScalar = uintptr(0)
|
||||
offsetFlag = uintptr(ptrSize * 2)
|
||||
type flag uintptr
|
||||
|
||||
// flagKindWidth and flagKindShift indicate various bits that the
|
||||
// reflect package uses internally to track kind information.
|
||||
//
|
||||
// flagRO indicates whether or not the value field of a reflect.Value is
|
||||
// read-only.
|
||||
//
|
||||
// flagIndir indicates whether the value field of a reflect.Value is
|
||||
// the actual data or a pointer to the data.
|
||||
//
|
||||
// These values are valid before golang commit 90a7c3c86944 which
|
||||
// changed their positions. Code in the init function updates these
|
||||
// flags as necessary.
|
||||
flagKindWidth = uintptr(5)
|
||||
flagKindShift = uintptr(flagKindWidth - 1)
|
||||
flagRO = uintptr(1 << 0)
|
||||
flagIndir = uintptr(1 << 1)
|
||||
var (
|
||||
// flagRO indicates whether the value field of a reflect.Value
|
||||
// is read-only.
|
||||
flagRO flag
|
||||
|
||||
// flagAddr indicates whether the address of the reflect.Value's
|
||||
// value may be taken.
|
||||
flagAddr flag
|
||||
)
|
||||
|
||||
func init() {
|
||||
// Older versions of reflect.Value stored small integers directly in the
|
||||
// ptr field (which is named val in the older versions). Versions
|
||||
// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
|
||||
// scalar for this purpose which unfortunately came before the flag
|
||||
// field, so the offset of the flag field is different for those
|
||||
// versions.
|
||||
//
|
||||
// This code constructs a new reflect.Value from a known small integer
|
||||
// and checks if the size of the reflect.Value struct indicates it has
|
||||
// the scalar field. When it does, the offsets are updated accordingly.
|
||||
vv := reflect.ValueOf(0xf00)
|
||||
if unsafe.Sizeof(vv) == (ptrSize * 4) {
|
||||
offsetScalar = ptrSize * 2
|
||||
offsetFlag = ptrSize * 3
|
||||
}
|
||||
// flagKindMask holds the bits that make up the kind
|
||||
// part of the flags field. In all the supported versions,
|
||||
// it is in the lower 5 bits.
|
||||
const flagKindMask = flag(0x1f)
|
||||
|
||||
// Commit 90a7c3c86944 changed the flag positions such that the low
|
||||
// order bits are the kind. This code extracts the kind from the flags
|
||||
// field and ensures it's the correct type. When it's not, the flag
|
||||
// order has been changed to the newer format, so the flags are updated
|
||||
// accordingly.
|
||||
upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
|
||||
upfv := *(*uintptr)(upf)
|
||||
flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
|
||||
if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
|
||||
flagKindShift = 0
|
||||
flagRO = 1 << 5
|
||||
flagIndir = 1 << 6
|
||||
// Different versions of Go have used different
|
||||
// bit layouts for the flags type. This table
|
||||
// records the known combinations.
|
||||
var okFlags = []struct {
|
||||
ro, addr flag
|
||||
}{{
|
||||
// From Go 1.4 to 1.5
|
||||
ro: 1 << 5,
|
||||
addr: 1 << 7,
|
||||
}, {
|
||||
// Up to Go tip.
|
||||
ro: 1<<5 | 1<<6,
|
||||
addr: 1 << 8,
|
||||
}}
|
||||
|
||||
// Commit adf9b30e5594 modified the flags to separate the
|
||||
// flagRO flag into two bits which specifies whether or not the
|
||||
// field is embedded. This causes flagIndir to move over a bit
|
||||
// and means that flagRO is the combination of either of the
|
||||
// original flagRO bit and the new bit.
|
||||
//
|
||||
// This code detects the change by extracting what used to be
|
||||
// the indirect bit to ensure it's set. When it's not, the flag
|
||||
// order has been changed to the newer format, so the flags are
|
||||
// updated accordingly.
|
||||
if upfv&flagIndir == 0 {
|
||||
flagRO = 3 << 5
|
||||
flagIndir = 1 << 7
|
||||
}
|
||||
var flagValOffset = func() uintptr {
|
||||
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
|
||||
if !ok {
|
||||
panic("reflect.Value has no flag field")
|
||||
}
|
||||
return field.Offset
|
||||
}()
|
||||
|
||||
// flagField returns a pointer to the flag field of a reflect.Value.
|
||||
func flagField(v *reflect.Value) *flag {
|
||||
return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset))
|
||||
}
|
||||
|
||||
// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
|
||||
@ -119,34 +90,56 @@ func init() {
|
||||
// This allows us to check for implementations of the Stringer and error
|
||||
// interfaces to be used for pretty printing ordinarily unaddressable and
|
||||
// inaccessible values such as unexported struct fields.
|
||||
func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
|
||||
indirects := 1
|
||||
vt := v.Type()
|
||||
upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
|
||||
rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
|
||||
if rvf&flagIndir != 0 {
|
||||
vt = reflect.PtrTo(v.Type())
|
||||
indirects++
|
||||
} else if offsetScalar != 0 {
|
||||
// The value is in the scalar field when it's not one of the
|
||||
// reference types.
|
||||
switch vt.Kind() {
|
||||
case reflect.Uintptr:
|
||||
case reflect.Chan:
|
||||
case reflect.Func:
|
||||
case reflect.Map:
|
||||
case reflect.Ptr:
|
||||
case reflect.UnsafePointer:
|
||||
default:
|
||||
upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
|
||||
offsetScalar)
|
||||
func unsafeReflectValue(v reflect.Value) reflect.Value {
|
||||
if !v.IsValid() || (v.CanInterface() && v.CanAddr()) {
|
||||
return v
|
||||
}
|
||||
flagFieldPtr := flagField(&v)
|
||||
*flagFieldPtr &^= flagRO
|
||||
*flagFieldPtr |= flagAddr
|
||||
return v
|
||||
}
|
||||
|
||||
// Sanity checks against future reflect package changes
|
||||
// to the type or semantics of the Value.flag field.
|
||||
func init() {
|
||||
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
|
||||
if !ok {
|
||||
panic("reflect.Value has no flag field")
|
||||
}
|
||||
if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() {
|
||||
panic("reflect.Value flag field has changed kind")
|
||||
}
|
||||
type t0 int
|
||||
var t struct {
|
||||
A t0
|
||||
// t0 will have flagEmbedRO set.
|
||||
t0
|
||||
// a will have flagStickyRO set
|
||||
a t0
|
||||
}
|
||||
vA := reflect.ValueOf(t).FieldByName("A")
|
||||
va := reflect.ValueOf(t).FieldByName("a")
|
||||
vt0 := reflect.ValueOf(t).FieldByName("t0")
|
||||
|
||||
// Infer flagRO from the difference between the flags
|
||||
// for the (otherwise identical) fields in t.
|
||||
flagPublic := *flagField(&vA)
|
||||
flagWithRO := *flagField(&va) | *flagField(&vt0)
|
||||
flagRO = flagPublic ^ flagWithRO
|
||||
|
||||
// Infer flagAddr from the difference between a value
|
||||
// taken from a pointer and not.
|
||||
vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A")
|
||||
flagNoPtr := *flagField(&vA)
|
||||
flagPtr := *flagField(&vPtrA)
|
||||
flagAddr = flagNoPtr ^ flagPtr
|
||||
|
||||
// Check that the inferred flags tally with one of the known versions.
|
||||
for _, f := range okFlags {
|
||||
if flagRO == f.ro && flagAddr == f.addr {
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
pv := reflect.NewAt(vt, upv)
|
||||
rv = pv
|
||||
for i := 0; i < indirects; i++ {
|
||||
rv = rv.Elem()
|
||||
}
|
||||
return rv
|
||||
panic("reflect.Value read-only flag has changed semantics")
|
||||
}
|
||||
|
2
vendor/github.com/davecgh/go-spew/spew/bypasssafe.go
generated
vendored
2
vendor/github.com/davecgh/go-spew/spew/bypasssafe.go
generated
vendored
@ -16,7 +16,7 @@
|
||||
// when the code is running on Google App Engine, compiled by GopherJS, or
|
||||
// "-tags safe" is added to the go build command line. The "disableunsafe"
|
||||
// tag is deprecated and thus should not be used.
|
||||
// +build js appengine safe disableunsafe
|
||||
// +build js appengine safe disableunsafe !go1.4
|
||||
|
||||
package spew
|
||||
|
||||
|
2
vendor/github.com/davecgh/go-spew/spew/common.go
generated
vendored
2
vendor/github.com/davecgh/go-spew/spew/common.go
generated
vendored
@ -180,7 +180,7 @@ func printComplex(w io.Writer, c complex128, floatPrecision int) {
|
||||
w.Write(closeParenBytes)
|
||||
}
|
||||
|
||||
// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
|
||||
// printHexPtr outputs a uintptr formatted as hexadecimal with a leading '0x'
|
||||
// prefix to Writer w.
|
||||
func printHexPtr(w io.Writer, p uintptr) {
|
||||
// Null pointer.
|
||||
|
10
vendor/github.com/davecgh/go-spew/spew/dump.go
generated
vendored
10
vendor/github.com/davecgh/go-spew/spew/dump.go
generated
vendored
@ -35,16 +35,16 @@ var (
|
||||
|
||||
// cCharRE is a regular expression that matches a cgo char.
|
||||
// It is used to detect character arrays to hexdump them.
|
||||
cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
|
||||
cCharRE = regexp.MustCompile(`^.*\._Ctype_char$`)
|
||||
|
||||
// cUnsignedCharRE is a regular expression that matches a cgo unsigned
|
||||
// char. It is used to detect unsigned character arrays to hexdump
|
||||
// them.
|
||||
cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
|
||||
cUnsignedCharRE = regexp.MustCompile(`^.*\._Ctype_unsignedchar$`)
|
||||
|
||||
// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
|
||||
// It is used to detect uint8_t arrays to hexdump them.
|
||||
cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
|
||||
cUint8tCharRE = regexp.MustCompile(`^.*\._Ctype_uint8_t$`)
|
||||
)
|
||||
|
||||
// dumpState contains information about the state of a dump operation.
|
||||
@ -143,10 +143,10 @@ func (d *dumpState) dumpPtr(v reflect.Value) {
|
||||
// Display dereferenced value.
|
||||
d.w.Write(openParenBytes)
|
||||
switch {
|
||||
case nilFound == true:
|
||||
case nilFound:
|
||||
d.w.Write(nilAngleBytes)
|
||||
|
||||
case cycleFound == true:
|
||||
case cycleFound:
|
||||
d.w.Write(circularBytes)
|
||||
|
||||
default:
|
||||
|
4
vendor/github.com/davecgh/go-spew/spew/format.go
generated
vendored
4
vendor/github.com/davecgh/go-spew/spew/format.go
generated
vendored
@ -182,10 +182,10 @@ func (f *formatState) formatPtr(v reflect.Value) {
|
||||
|
||||
// Display dereferenced value.
|
||||
switch {
|
||||
case nilFound == true:
|
||||
case nilFound:
|
||||
f.fs.Write(nilAngleBytes)
|
||||
|
||||
case cycleFound == true:
|
||||
case cycleFound:
|
||||
f.fs.Write(circularShortBytes)
|
||||
|
||||
default:
|
||||
|
3
vendor/github.com/golang/protobuf/AUTHORS
generated
vendored
Normal file
3
vendor/github.com/golang/protobuf/AUTHORS
generated
vendored
Normal file
@ -0,0 +1,3 @@
|
||||
# This source code refers to The Go Authors for copyright purposes.
|
||||
# The master list of authors is in the main Go distribution,
|
||||
# visible at http://tip.golang.org/AUTHORS.
|
3
vendor/github.com/golang/protobuf/CONTRIBUTORS
generated
vendored
Normal file
3
vendor/github.com/golang/protobuf/CONTRIBUTORS
generated
vendored
Normal file
@ -0,0 +1,3 @@
|
||||
# This source code was written by the Go contributors.
|
||||
# The master list of contributors is in the main Go distribution,
|
||||
# visible at http://tip.golang.org/CONTRIBUTORS.
|
28
vendor/github.com/golang/protobuf/LICENSE
generated
vendored
Normal file
28
vendor/github.com/golang/protobuf/LICENSE
generated
vendored
Normal file
@ -0,0 +1,28 @@
|
||||
Copyright 2010 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
324
vendor/github.com/golang/protobuf/proto/buffer.go
generated
vendored
Normal file
324
vendor/github.com/golang/protobuf/proto/buffer.go
generated
vendored
Normal file
@ -0,0 +1,324 @@
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
|
||||
"google.golang.org/protobuf/encoding/prototext"
|
||||
"google.golang.org/protobuf/encoding/protowire"
|
||||
"google.golang.org/protobuf/runtime/protoimpl"
|
||||
)
|
||||
|
||||
const (
|
||||
WireVarint = 0
|
||||
WireFixed32 = 5
|
||||
WireFixed64 = 1
|
||||
WireBytes = 2
|
||||
WireStartGroup = 3
|
||||
WireEndGroup = 4
|
||||
)
|
||||
|
||||
// EncodeVarint returns the varint encoded bytes of v.
|
||||
func EncodeVarint(v uint64) []byte {
|
||||
return protowire.AppendVarint(nil, v)
|
||||
}
|
||||
|
||||
// SizeVarint returns the length of the varint encoded bytes of v.
|
||||
// This is equal to len(EncodeVarint(v)).
|
||||
func SizeVarint(v uint64) int {
|
||||
return protowire.SizeVarint(v)
|
||||
}
|
||||
|
||||
// DecodeVarint parses a varint encoded integer from b,
|
||||
// returning the integer value and the length of the varint.
|
||||
// It returns (0, 0) if there is a parse error.
|
||||
func DecodeVarint(b []byte) (uint64, int) {
|
||||
v, n := protowire.ConsumeVarint(b)
|
||||
if n < 0 {
|
||||
return 0, 0
|
||||
}
|
||||
return v, n
|
||||
}
|
||||
|
||||
// Buffer is a buffer for encoding and decoding the protobuf wire format.
|
||||
// It may be reused between invocations to reduce memory usage.
|
||||
type Buffer struct {
|
||||
buf []byte
|
||||
idx int
|
||||
deterministic bool
|
||||
}
|
||||
|
||||
// NewBuffer allocates a new Buffer initialized with buf,
|
||||
// where the contents of buf are considered the unread portion of the buffer.
|
||||
func NewBuffer(buf []byte) *Buffer {
|
||||
return &Buffer{buf: buf}
|
||||
}
|
||||
|
||||
// SetDeterministic specifies whether to use deterministic serialization.
|
||||
//
|
||||
// Deterministic serialization guarantees that for a given binary, equal
|
||||
// messages will always be serialized to the same bytes. This implies:
|
||||
//
|
||||
// - Repeated serialization of a message will return the same bytes.
|
||||
// - Different processes of the same binary (which may be executing on
|
||||
// different machines) will serialize equal messages to the same bytes.
|
||||
//
|
||||
// Note that the deterministic serialization is NOT canonical across
|
||||
// languages. It is not guaranteed to remain stable over time. It is unstable
|
||||
// across different builds with schema changes due to unknown fields.
|
||||
// Users who need canonical serialization (e.g., persistent storage in a
|
||||
// canonical form, fingerprinting, etc.) should define their own
|
||||
// canonicalization specification and implement their own serializer rather
|
||||
// than relying on this API.
|
||||
//
|
||||
// If deterministic serialization is requested, map entries will be sorted
|
||||
// by keys in lexographical order. This is an implementation detail and
|
||||
// subject to change.
|
||||
func (b *Buffer) SetDeterministic(deterministic bool) {
|
||||
b.deterministic = deterministic
|
||||
}
|
||||
|
||||
// SetBuf sets buf as the internal buffer,
|
||||
// where the contents of buf are considered the unread portion of the buffer.
|
||||
func (b *Buffer) SetBuf(buf []byte) {
|
||||
b.buf = buf
|
||||
b.idx = 0
|
||||
}
|
||||
|
||||
// Reset clears the internal buffer of all written and unread data.
|
||||
func (b *Buffer) Reset() {
|
||||
b.buf = b.buf[:0]
|
||||
b.idx = 0
|
||||
}
|
||||
|
||||
// Bytes returns the internal buffer.
|
||||
func (b *Buffer) Bytes() []byte {
|
||||
return b.buf
|
||||
}
|
||||
|
||||
// Unread returns the unread portion of the buffer.
|
||||
func (b *Buffer) Unread() []byte {
|
||||
return b.buf[b.idx:]
|
||||
}
|
||||
|
||||
// Marshal appends the wire-format encoding of m to the buffer.
|
||||
func (b *Buffer) Marshal(m Message) error {
|
||||
var err error
|
||||
b.buf, err = marshalAppend(b.buf, m, b.deterministic)
|
||||
return err
|
||||
}
|
||||
|
||||
// Unmarshal parses the wire-format message in the buffer and
|
||||
// places the decoded results in m.
|
||||
// It does not reset m before unmarshaling.
|
||||
func (b *Buffer) Unmarshal(m Message) error {
|
||||
err := UnmarshalMerge(b.Unread(), m)
|
||||
b.idx = len(b.buf)
|
||||
return err
|
||||
}
|
||||
|
||||
type unknownFields struct{ XXX_unrecognized protoimpl.UnknownFields }
|
||||
|
||||
func (m *unknownFields) String() string { panic("not implemented") }
|
||||
func (m *unknownFields) Reset() { panic("not implemented") }
|
||||
func (m *unknownFields) ProtoMessage() { panic("not implemented") }
|
||||
|
||||
// DebugPrint dumps the encoded bytes of b with a header and footer including s
|
||||
// to stdout. This is only intended for debugging.
|
||||
func (*Buffer) DebugPrint(s string, b []byte) {
|
||||
m := MessageReflect(new(unknownFields))
|
||||
m.SetUnknown(b)
|
||||
b, _ = prototext.MarshalOptions{AllowPartial: true, Indent: "\t"}.Marshal(m.Interface())
|
||||
fmt.Printf("==== %s ====\n%s==== %s ====\n", s, b, s)
|
||||
}
|
||||
|
||||
// EncodeVarint appends an unsigned varint encoding to the buffer.
|
||||
func (b *Buffer) EncodeVarint(v uint64) error {
|
||||
b.buf = protowire.AppendVarint(b.buf, v)
|
||||
return nil
|
||||
}
|
||||
|
||||
// EncodeZigzag32 appends a 32-bit zig-zag varint encoding to the buffer.
|
||||
func (b *Buffer) EncodeZigzag32(v uint64) error {
|
||||
return b.EncodeVarint(uint64((uint32(v) << 1) ^ uint32((int32(v) >> 31))))
|
||||
}
|
||||
|
||||
// EncodeZigzag64 appends a 64-bit zig-zag varint encoding to the buffer.
|
||||
func (b *Buffer) EncodeZigzag64(v uint64) error {
|
||||
return b.EncodeVarint(uint64((uint64(v) << 1) ^ uint64((int64(v) >> 63))))
|
||||
}
|
||||
|
||||
// EncodeFixed32 appends a 32-bit little-endian integer to the buffer.
|
||||
func (b *Buffer) EncodeFixed32(v uint64) error {
|
||||
b.buf = protowire.AppendFixed32(b.buf, uint32(v))
|
||||
return nil
|
||||
}
|
||||
|
||||
// EncodeFixed64 appends a 64-bit little-endian integer to the buffer.
|
||||
func (b *Buffer) EncodeFixed64(v uint64) error {
|
||||
b.buf = protowire.AppendFixed64(b.buf, uint64(v))
|
||||
return nil
|
||||
}
|
||||
|
||||
// EncodeRawBytes appends a length-prefixed raw bytes to the buffer.
|
||||
func (b *Buffer) EncodeRawBytes(v []byte) error {
|
||||
b.buf = protowire.AppendBytes(b.buf, v)
|
||||
return nil
|
||||
}
|
||||
|
||||
// EncodeStringBytes appends a length-prefixed raw bytes to the buffer.
|
||||
// It does not validate whether v contains valid UTF-8.
|
||||
func (b *Buffer) EncodeStringBytes(v string) error {
|
||||
b.buf = protowire.AppendString(b.buf, v)
|
||||
return nil
|
||||
}
|
||||
|
||||
// EncodeMessage appends a length-prefixed encoded message to the buffer.
|
||||
func (b *Buffer) EncodeMessage(m Message) error {
|
||||
var err error
|
||||
b.buf = protowire.AppendVarint(b.buf, uint64(Size(m)))
|
||||
b.buf, err = marshalAppend(b.buf, m, b.deterministic)
|
||||
return err
|
||||
}
|
||||
|
||||
// DecodeVarint consumes an encoded unsigned varint from the buffer.
|
||||
func (b *Buffer) DecodeVarint() (uint64, error) {
|
||||
v, n := protowire.ConsumeVarint(b.buf[b.idx:])
|
||||
if n < 0 {
|
||||
return 0, protowire.ParseError(n)
|
||||
}
|
||||
b.idx += n
|
||||
return uint64(v), nil
|
||||
}
|
||||
|
||||
// DecodeZigzag32 consumes an encoded 32-bit zig-zag varint from the buffer.
|
||||
func (b *Buffer) DecodeZigzag32() (uint64, error) {
|
||||
v, err := b.DecodeVarint()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return uint64((uint32(v) >> 1) ^ uint32((int32(v&1)<<31)>>31)), nil
|
||||
}
|
||||
|
||||
// DecodeZigzag64 consumes an encoded 64-bit zig-zag varint from the buffer.
|
||||
func (b *Buffer) DecodeZigzag64() (uint64, error) {
|
||||
v, err := b.DecodeVarint()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return uint64((uint64(v) >> 1) ^ uint64((int64(v&1)<<63)>>63)), nil
|
||||
}
|
||||
|
||||
// DecodeFixed32 consumes a 32-bit little-endian integer from the buffer.
|
||||
func (b *Buffer) DecodeFixed32() (uint64, error) {
|
||||
v, n := protowire.ConsumeFixed32(b.buf[b.idx:])
|
||||
if n < 0 {
|
||||
return 0, protowire.ParseError(n)
|
||||
}
|
||||
b.idx += n
|
||||
return uint64(v), nil
|
||||
}
|
||||
|
||||
// DecodeFixed64 consumes a 64-bit little-endian integer from the buffer.
|
||||
func (b *Buffer) DecodeFixed64() (uint64, error) {
|
||||
v, n := protowire.ConsumeFixed64(b.buf[b.idx:])
|
||||
if n < 0 {
|
||||
return 0, protowire.ParseError(n)
|
||||
}
|
||||
b.idx += n
|
||||
return uint64(v), nil
|
||||
}
|
||||
|
||||
// DecodeRawBytes consumes a length-prefixed raw bytes from the buffer.
|
||||
// If alloc is specified, it returns a copy the raw bytes
|
||||
// rather than a sub-slice of the buffer.
|
||||
func (b *Buffer) DecodeRawBytes(alloc bool) ([]byte, error) {
|
||||
v, n := protowire.ConsumeBytes(b.buf[b.idx:])
|
||||
if n < 0 {
|
||||
return nil, protowire.ParseError(n)
|
||||
}
|
||||
b.idx += n
|
||||
if alloc {
|
||||
v = append([]byte(nil), v...)
|
||||
}
|
||||
return v, nil
|
||||
}
|
||||
|
||||
// DecodeStringBytes consumes a length-prefixed raw bytes from the buffer.
|
||||
// It does not validate whether the raw bytes contain valid UTF-8.
|
||||
func (b *Buffer) DecodeStringBytes() (string, error) {
|
||||
v, n := protowire.ConsumeString(b.buf[b.idx:])
|
||||
if n < 0 {
|
||||
return "", protowire.ParseError(n)
|
||||
}
|
||||
b.idx += n
|
||||
return v, nil
|
||||
}
|
||||
|
||||
// DecodeMessage consumes a length-prefixed message from the buffer.
|
||||
// It does not reset m before unmarshaling.
|
||||
func (b *Buffer) DecodeMessage(m Message) error {
|
||||
v, err := b.DecodeRawBytes(false)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return UnmarshalMerge(v, m)
|
||||
}
|
||||
|
||||
// DecodeGroup consumes a message group from the buffer.
|
||||
// It assumes that the start group marker has already been consumed and
|
||||
// consumes all bytes until (and including the end group marker).
|
||||
// It does not reset m before unmarshaling.
|
||||
func (b *Buffer) DecodeGroup(m Message) error {
|
||||
v, n, err := consumeGroup(b.buf[b.idx:])
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
b.idx += n
|
||||
return UnmarshalMerge(v, m)
|
||||
}
|
||||
|
||||
// consumeGroup parses b until it finds an end group marker, returning
|
||||
// the raw bytes of the message (excluding the end group marker) and the
|
||||
// the total length of the message (including the end group marker).
|
||||
func consumeGroup(b []byte) ([]byte, int, error) {
|
||||
b0 := b
|
||||
depth := 1 // assume this follows a start group marker
|
||||
for {
|
||||
_, wtyp, tagLen := protowire.ConsumeTag(b)
|
||||
if tagLen < 0 {
|
||||
return nil, 0, protowire.ParseError(tagLen)
|
||||
}
|
||||
b = b[tagLen:]
|
||||
|
||||
var valLen int
|
||||
switch wtyp {
|
||||
case protowire.VarintType:
|
||||
_, valLen = protowire.ConsumeVarint(b)
|
||||
case protowire.Fixed32Type:
|
||||
_, valLen = protowire.ConsumeFixed32(b)
|
||||
case protowire.Fixed64Type:
|
||||
_, valLen = protowire.ConsumeFixed64(b)
|
||||
case protowire.BytesType:
|
||||
_, valLen = protowire.ConsumeBytes(b)
|
||||
case protowire.StartGroupType:
|
||||
depth++
|
||||
case protowire.EndGroupType:
|
||||
depth--
|
||||
default:
|
||||
return nil, 0, errors.New("proto: cannot parse reserved wire type")
|
||||
}
|
||||
if valLen < 0 {
|
||||
return nil, 0, protowire.ParseError(valLen)
|
||||
}
|
||||
b = b[valLen:]
|
||||
|
||||
if depth == 0 {
|
||||
return b0[:len(b0)-len(b)-tagLen], len(b0) - len(b), nil
|
||||
}
|
||||
}
|
||||
}
|
63
vendor/github.com/golang/protobuf/proto/defaults.go
generated
vendored
Normal file
63
vendor/github.com/golang/protobuf/proto/defaults.go
generated
vendored
Normal file
@ -0,0 +1,63 @@
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
)
|
||||
|
||||
// SetDefaults sets unpopulated scalar fields to their default values.
|
||||
// Fields within a oneof are not set even if they have a default value.
|
||||
// SetDefaults is recursively called upon any populated message fields.
|
||||
func SetDefaults(m Message) {
|
||||
if m != nil {
|
||||
setDefaults(MessageReflect(m))
|
||||
}
|
||||
}
|
||||
|
||||
func setDefaults(m protoreflect.Message) {
|
||||
fds := m.Descriptor().Fields()
|
||||
for i := 0; i < fds.Len(); i++ {
|
||||
fd := fds.Get(i)
|
||||
if !m.Has(fd) {
|
||||
if fd.HasDefault() && fd.ContainingOneof() == nil {
|
||||
v := fd.Default()
|
||||
if fd.Kind() == protoreflect.BytesKind {
|
||||
v = protoreflect.ValueOf(append([]byte(nil), v.Bytes()...)) // copy the default bytes
|
||||
}
|
||||
m.Set(fd, v)
|
||||
}
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
|
||||
switch {
|
||||
// Handle singular message.
|
||||
case fd.Cardinality() != protoreflect.Repeated:
|
||||
if fd.Message() != nil {
|
||||
setDefaults(m.Get(fd).Message())
|
||||
}
|
||||
// Handle list of messages.
|
||||
case fd.IsList():
|
||||
if fd.Message() != nil {
|
||||
ls := m.Get(fd).List()
|
||||
for i := 0; i < ls.Len(); i++ {
|
||||
setDefaults(ls.Get(i).Message())
|
||||
}
|
||||
}
|
||||
// Handle map of messages.
|
||||
case fd.IsMap():
|
||||
if fd.MapValue().Message() != nil {
|
||||
ms := m.Get(fd).Map()
|
||||
ms.Range(func(_ protoreflect.MapKey, v protoreflect.Value) bool {
|
||||
setDefaults(v.Message())
|
||||
return true
|
||||
})
|
||||
}
|
||||
}
|
||||
return true
|
||||
})
|
||||
}
|
113
vendor/github.com/golang/protobuf/proto/deprecated.go
generated
vendored
Normal file
113
vendor/github.com/golang/protobuf/proto/deprecated.go
generated
vendored
Normal file
@ -0,0 +1,113 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"strconv"
|
||||
|
||||
protoV2 "google.golang.org/protobuf/proto"
|
||||
)
|
||||
|
||||
var (
|
||||
// Deprecated: No longer returned.
|
||||
ErrNil = errors.New("proto: Marshal called with nil")
|
||||
|
||||
// Deprecated: No longer returned.
|
||||
ErrTooLarge = errors.New("proto: message encodes to over 2 GB")
|
||||
|
||||
// Deprecated: No longer returned.
|
||||
ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof")
|
||||
)
|
||||
|
||||
// Deprecated: Do not use.
|
||||
type Stats struct{ Emalloc, Dmalloc, Encode, Decode, Chit, Cmiss, Size uint64 }
|
||||
|
||||
// Deprecated: Do not use.
|
||||
func GetStats() Stats { return Stats{} }
|
||||
|
||||
// Deprecated: Do not use.
|
||||
func MarshalMessageSet(interface{}) ([]byte, error) {
|
||||
return nil, errors.New("proto: not implemented")
|
||||
}
|
||||
|
||||
// Deprecated: Do not use.
|
||||
func UnmarshalMessageSet([]byte, interface{}) error {
|
||||
return errors.New("proto: not implemented")
|
||||
}
|
||||
|
||||
// Deprecated: Do not use.
|
||||
func MarshalMessageSetJSON(interface{}) ([]byte, error) {
|
||||
return nil, errors.New("proto: not implemented")
|
||||
}
|
||||
|
||||
// Deprecated: Do not use.
|
||||
func UnmarshalMessageSetJSON([]byte, interface{}) error {
|
||||
return errors.New("proto: not implemented")
|
||||
}
|
||||
|
||||
// Deprecated: Do not use.
|
||||
func RegisterMessageSetType(Message, int32, string) {}
|
||||
|
||||
// Deprecated: Do not use.
|
||||
func EnumName(m map[int32]string, v int32) string {
|
||||
s, ok := m[v]
|
||||
if ok {
|
||||
return s
|
||||
}
|
||||
return strconv.Itoa(int(v))
|
||||
}
|
||||
|
||||
// Deprecated: Do not use.
|
||||
func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) {
|
||||
if data[0] == '"' {
|
||||
// New style: enums are strings.
|
||||
var repr string
|
||||
if err := json.Unmarshal(data, &repr); err != nil {
|
||||
return -1, err
|
||||
}
|
||||
val, ok := m[repr]
|
||||
if !ok {
|
||||
return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr)
|
||||
}
|
||||
return val, nil
|
||||
}
|
||||
// Old style: enums are ints.
|
||||
var val int32
|
||||
if err := json.Unmarshal(data, &val); err != nil {
|
||||
return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName)
|
||||
}
|
||||
return val, nil
|
||||
}
|
||||
|
||||
// Deprecated: Do not use; this type existed for intenal-use only.
|
||||
type InternalMessageInfo struct{}
|
||||
|
||||
// Deprecated: Do not use; this method existed for intenal-use only.
|
||||
func (*InternalMessageInfo) DiscardUnknown(m Message) {
|
||||
DiscardUnknown(m)
|
||||
}
|
||||
|
||||
// Deprecated: Do not use; this method existed for intenal-use only.
|
||||
func (*InternalMessageInfo) Marshal(b []byte, m Message, deterministic bool) ([]byte, error) {
|
||||
return protoV2.MarshalOptions{Deterministic: deterministic}.MarshalAppend(b, MessageV2(m))
|
||||
}
|
||||
|
||||
// Deprecated: Do not use; this method existed for intenal-use only.
|
||||
func (*InternalMessageInfo) Merge(dst, src Message) {
|
||||
protoV2.Merge(MessageV2(dst), MessageV2(src))
|
||||
}
|
||||
|
||||
// Deprecated: Do not use; this method existed for intenal-use only.
|
||||
func (*InternalMessageInfo) Size(m Message) int {
|
||||
return protoV2.Size(MessageV2(m))
|
||||
}
|
||||
|
||||
// Deprecated: Do not use; this method existed for intenal-use only.
|
||||
func (*InternalMessageInfo) Unmarshal(m Message, b []byte) error {
|
||||
return protoV2.UnmarshalOptions{Merge: true}.Unmarshal(b, MessageV2(m))
|
||||
}
|
58
vendor/github.com/golang/protobuf/proto/discard.go
generated
vendored
Normal file
58
vendor/github.com/golang/protobuf/proto/discard.go
generated
vendored
Normal file
@ -0,0 +1,58 @@
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
)
|
||||
|
||||
// DiscardUnknown recursively discards all unknown fields from this message
|
||||
// and all embedded messages.
|
||||
//
|
||||
// When unmarshaling a message with unrecognized fields, the tags and values
|
||||
// of such fields are preserved in the Message. This allows a later call to
|
||||
// marshal to be able to produce a message that continues to have those
|
||||
// unrecognized fields. To avoid this, DiscardUnknown is used to
|
||||
// explicitly clear the unknown fields after unmarshaling.
|
||||
func DiscardUnknown(m Message) {
|
||||
if m != nil {
|
||||
discardUnknown(MessageReflect(m))
|
||||
}
|
||||
}
|
||||
|
||||
func discardUnknown(m protoreflect.Message) {
|
||||
m.Range(func(fd protoreflect.FieldDescriptor, val protoreflect.Value) bool {
|
||||
switch {
|
||||
// Handle singular message.
|
||||
case fd.Cardinality() != protoreflect.Repeated:
|
||||
if fd.Message() != nil {
|
||||
discardUnknown(m.Get(fd).Message())
|
||||
}
|
||||
// Handle list of messages.
|
||||
case fd.IsList():
|
||||
if fd.Message() != nil {
|
||||
ls := m.Get(fd).List()
|
||||
for i := 0; i < ls.Len(); i++ {
|
||||
discardUnknown(ls.Get(i).Message())
|
||||
}
|
||||
}
|
||||
// Handle map of messages.
|
||||
case fd.IsMap():
|
||||
if fd.MapValue().Message() != nil {
|
||||
ms := m.Get(fd).Map()
|
||||
ms.Range(func(_ protoreflect.MapKey, v protoreflect.Value) bool {
|
||||
discardUnknown(v.Message())
|
||||
return true
|
||||
})
|
||||
}
|
||||
}
|
||||
return true
|
||||
})
|
||||
|
||||
// Discard unknown fields.
|
||||
if len(m.GetUnknown()) > 0 {
|
||||
m.SetUnknown(nil)
|
||||
}
|
||||
}
|
356
vendor/github.com/golang/protobuf/proto/extensions.go
generated
vendored
Normal file
356
vendor/github.com/golang/protobuf/proto/extensions.go
generated
vendored
Normal file
@ -0,0 +1,356 @@
|
||||
// Copyright 2010 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"reflect"
|
||||
|
||||
"google.golang.org/protobuf/encoding/protowire"
|
||||
"google.golang.org/protobuf/proto"
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
"google.golang.org/protobuf/reflect/protoregistry"
|
||||
"google.golang.org/protobuf/runtime/protoiface"
|
||||
"google.golang.org/protobuf/runtime/protoimpl"
|
||||
)
|
||||
|
||||
type (
|
||||
// ExtensionDesc represents an extension descriptor and
|
||||
// is used to interact with an extension field in a message.
|
||||
//
|
||||
// Variables of this type are generated in code by protoc-gen-go.
|
||||
ExtensionDesc = protoimpl.ExtensionInfo
|
||||
|
||||
// ExtensionRange represents a range of message extensions.
|
||||
// Used in code generated by protoc-gen-go.
|
||||
ExtensionRange = protoiface.ExtensionRangeV1
|
||||
|
||||
// Deprecated: Do not use; this is an internal type.
|
||||
Extension = protoimpl.ExtensionFieldV1
|
||||
|
||||
// Deprecated: Do not use; this is an internal type.
|
||||
XXX_InternalExtensions = protoimpl.ExtensionFields
|
||||
)
|
||||
|
||||
// ErrMissingExtension reports whether the extension was not present.
|
||||
var ErrMissingExtension = errors.New("proto: missing extension")
|
||||
|
||||
var errNotExtendable = errors.New("proto: not an extendable proto.Message")
|
||||
|
||||
// HasExtension reports whether the extension field is present in m
|
||||
// either as an explicitly populated field or as an unknown field.
|
||||
func HasExtension(m Message, xt *ExtensionDesc) (has bool) {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() {
|
||||
return false
|
||||
}
|
||||
|
||||
// Check whether any populated known field matches the field number.
|
||||
xtd := xt.TypeDescriptor()
|
||||
if isValidExtension(mr.Descriptor(), xtd) {
|
||||
has = mr.Has(xtd)
|
||||
} else {
|
||||
mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
|
||||
has = int32(fd.Number()) == xt.Field
|
||||
return !has
|
||||
})
|
||||
}
|
||||
|
||||
// Check whether any unknown field matches the field number.
|
||||
for b := mr.GetUnknown(); !has && len(b) > 0; {
|
||||
num, _, n := protowire.ConsumeField(b)
|
||||
has = int32(num) == xt.Field
|
||||
b = b[n:]
|
||||
}
|
||||
return has
|
||||
}
|
||||
|
||||
// ClearExtension removes the extension field from m
|
||||
// either as an explicitly populated field or as an unknown field.
|
||||
func ClearExtension(m Message, xt *ExtensionDesc) {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() {
|
||||
return
|
||||
}
|
||||
|
||||
xtd := xt.TypeDescriptor()
|
||||
if isValidExtension(mr.Descriptor(), xtd) {
|
||||
mr.Clear(xtd)
|
||||
} else {
|
||||
mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
|
||||
if int32(fd.Number()) == xt.Field {
|
||||
mr.Clear(fd)
|
||||
return false
|
||||
}
|
||||
return true
|
||||
})
|
||||
}
|
||||
clearUnknown(mr, fieldNum(xt.Field))
|
||||
}
|
||||
|
||||
// ClearAllExtensions clears all extensions from m.
|
||||
// This includes populated fields and unknown fields in the extension range.
|
||||
func ClearAllExtensions(m Message) {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() {
|
||||
return
|
||||
}
|
||||
|
||||
mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
|
||||
if fd.IsExtension() {
|
||||
mr.Clear(fd)
|
||||
}
|
||||
return true
|
||||
})
|
||||
clearUnknown(mr, mr.Descriptor().ExtensionRanges())
|
||||
}
|
||||
|
||||
// GetExtension retrieves a proto2 extended field from m.
|
||||
//
|
||||
// If the descriptor is type complete (i.e., ExtensionDesc.ExtensionType is non-nil),
|
||||
// then GetExtension parses the encoded field and returns a Go value of the specified type.
|
||||
// If the field is not present, then the default value is returned (if one is specified),
|
||||
// otherwise ErrMissingExtension is reported.
|
||||
//
|
||||
// If the descriptor is type incomplete (i.e., ExtensionDesc.ExtensionType is nil),
|
||||
// then GetExtension returns the raw encoded bytes for the extension field.
|
||||
func GetExtension(m Message, xt *ExtensionDesc) (interface{}, error) {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
|
||||
return nil, errNotExtendable
|
||||
}
|
||||
|
||||
// Retrieve the unknown fields for this extension field.
|
||||
var bo protoreflect.RawFields
|
||||
for bi := mr.GetUnknown(); len(bi) > 0; {
|
||||
num, _, n := protowire.ConsumeField(bi)
|
||||
if int32(num) == xt.Field {
|
||||
bo = append(bo, bi[:n]...)
|
||||
}
|
||||
bi = bi[n:]
|
||||
}
|
||||
|
||||
// For type incomplete descriptors, only retrieve the unknown fields.
|
||||
if xt.ExtensionType == nil {
|
||||
return []byte(bo), nil
|
||||
}
|
||||
|
||||
// If the extension field only exists as unknown fields, unmarshal it.
|
||||
// This is rarely done since proto.Unmarshal eagerly unmarshals extensions.
|
||||
xtd := xt.TypeDescriptor()
|
||||
if !isValidExtension(mr.Descriptor(), xtd) {
|
||||
return nil, fmt.Errorf("proto: bad extended type; %T does not extend %T", xt.ExtendedType, m)
|
||||
}
|
||||
if !mr.Has(xtd) && len(bo) > 0 {
|
||||
m2 := mr.New()
|
||||
if err := (proto.UnmarshalOptions{
|
||||
Resolver: extensionResolver{xt},
|
||||
}.Unmarshal(bo, m2.Interface())); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if m2.Has(xtd) {
|
||||
mr.Set(xtd, m2.Get(xtd))
|
||||
clearUnknown(mr, fieldNum(xt.Field))
|
||||
}
|
||||
}
|
||||
|
||||
// Check whether the message has the extension field set or a default.
|
||||
var pv protoreflect.Value
|
||||
switch {
|
||||
case mr.Has(xtd):
|
||||
pv = mr.Get(xtd)
|
||||
case xtd.HasDefault():
|
||||
pv = xtd.Default()
|
||||
default:
|
||||
return nil, ErrMissingExtension
|
||||
}
|
||||
|
||||
v := xt.InterfaceOf(pv)
|
||||
rv := reflect.ValueOf(v)
|
||||
if isScalarKind(rv.Kind()) {
|
||||
rv2 := reflect.New(rv.Type())
|
||||
rv2.Elem().Set(rv)
|
||||
v = rv2.Interface()
|
||||
}
|
||||
return v, nil
|
||||
}
|
||||
|
||||
// extensionResolver is a custom extension resolver that stores a single
|
||||
// extension type that takes precedence over the global registry.
|
||||
type extensionResolver struct{ xt protoreflect.ExtensionType }
|
||||
|
||||
func (r extensionResolver) FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error) {
|
||||
if xtd := r.xt.TypeDescriptor(); xtd.FullName() == field {
|
||||
return r.xt, nil
|
||||
}
|
||||
return protoregistry.GlobalTypes.FindExtensionByName(field)
|
||||
}
|
||||
|
||||
func (r extensionResolver) FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error) {
|
||||
if xtd := r.xt.TypeDescriptor(); xtd.ContainingMessage().FullName() == message && xtd.Number() == field {
|
||||
return r.xt, nil
|
||||
}
|
||||
return protoregistry.GlobalTypes.FindExtensionByNumber(message, field)
|
||||
}
|
||||
|
||||
// GetExtensions returns a list of the extensions values present in m,
|
||||
// corresponding with the provided list of extension descriptors, xts.
|
||||
// If an extension is missing in m, the corresponding value is nil.
|
||||
func GetExtensions(m Message, xts []*ExtensionDesc) ([]interface{}, error) {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() {
|
||||
return nil, errNotExtendable
|
||||
}
|
||||
|
||||
vs := make([]interface{}, len(xts))
|
||||
for i, xt := range xts {
|
||||
v, err := GetExtension(m, xt)
|
||||
if err != nil {
|
||||
if err == ErrMissingExtension {
|
||||
continue
|
||||
}
|
||||
return vs, err
|
||||
}
|
||||
vs[i] = v
|
||||
}
|
||||
return vs, nil
|
||||
}
|
||||
|
||||
// SetExtension sets an extension field in m to the provided value.
|
||||
func SetExtension(m Message, xt *ExtensionDesc, v interface{}) error {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
|
||||
return errNotExtendable
|
||||
}
|
||||
|
||||
rv := reflect.ValueOf(v)
|
||||
if reflect.TypeOf(v) != reflect.TypeOf(xt.ExtensionType) {
|
||||
return fmt.Errorf("proto: bad extension value type. got: %T, want: %T", v, xt.ExtensionType)
|
||||
}
|
||||
if rv.Kind() == reflect.Ptr {
|
||||
if rv.IsNil() {
|
||||
return fmt.Errorf("proto: SetExtension called with nil value of type %T", v)
|
||||
}
|
||||
if isScalarKind(rv.Elem().Kind()) {
|
||||
v = rv.Elem().Interface()
|
||||
}
|
||||
}
|
||||
|
||||
xtd := xt.TypeDescriptor()
|
||||
if !isValidExtension(mr.Descriptor(), xtd) {
|
||||
return fmt.Errorf("proto: bad extended type; %T does not extend %T", xt.ExtendedType, m)
|
||||
}
|
||||
mr.Set(xtd, xt.ValueOf(v))
|
||||
clearUnknown(mr, fieldNum(xt.Field))
|
||||
return nil
|
||||
}
|
||||
|
||||
// SetRawExtension inserts b into the unknown fields of m.
|
||||
//
|
||||
// Deprecated: Use Message.ProtoReflect.SetUnknown instead.
|
||||
func SetRawExtension(m Message, fnum int32, b []byte) {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() {
|
||||
return
|
||||
}
|
||||
|
||||
// Verify that the raw field is valid.
|
||||
for b0 := b; len(b0) > 0; {
|
||||
num, _, n := protowire.ConsumeField(b0)
|
||||
if int32(num) != fnum {
|
||||
panic(fmt.Sprintf("mismatching field number: got %d, want %d", num, fnum))
|
||||
}
|
||||
b0 = b0[n:]
|
||||
}
|
||||
|
||||
ClearExtension(m, &ExtensionDesc{Field: fnum})
|
||||
mr.SetUnknown(append(mr.GetUnknown(), b...))
|
||||
}
|
||||
|
||||
// ExtensionDescs returns a list of extension descriptors found in m,
|
||||
// containing descriptors for both populated extension fields in m and
|
||||
// also unknown fields of m that are in the extension range.
|
||||
// For the later case, an type incomplete descriptor is provided where only
|
||||
// the ExtensionDesc.Field field is populated.
|
||||
// The order of the extension descriptors is undefined.
|
||||
func ExtensionDescs(m Message) ([]*ExtensionDesc, error) {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
|
||||
return nil, errNotExtendable
|
||||
}
|
||||
|
||||
// Collect a set of known extension descriptors.
|
||||
extDescs := make(map[protoreflect.FieldNumber]*ExtensionDesc)
|
||||
mr.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
|
||||
if fd.IsExtension() {
|
||||
xt := fd.(protoreflect.ExtensionTypeDescriptor)
|
||||
if xd, ok := xt.Type().(*ExtensionDesc); ok {
|
||||
extDescs[fd.Number()] = xd
|
||||
}
|
||||
}
|
||||
return true
|
||||
})
|
||||
|
||||
// Collect a set of unknown extension descriptors.
|
||||
extRanges := mr.Descriptor().ExtensionRanges()
|
||||
for b := mr.GetUnknown(); len(b) > 0; {
|
||||
num, _, n := protowire.ConsumeField(b)
|
||||
if extRanges.Has(num) && extDescs[num] == nil {
|
||||
extDescs[num] = nil
|
||||
}
|
||||
b = b[n:]
|
||||
}
|
||||
|
||||
// Transpose the set of descriptors into a list.
|
||||
var xts []*ExtensionDesc
|
||||
for num, xt := range extDescs {
|
||||
if xt == nil {
|
||||
xt = &ExtensionDesc{Field: int32(num)}
|
||||
}
|
||||
xts = append(xts, xt)
|
||||
}
|
||||
return xts, nil
|
||||
}
|
||||
|
||||
// isValidExtension reports whether xtd is a valid extension descriptor for md.
|
||||
func isValidExtension(md protoreflect.MessageDescriptor, xtd protoreflect.ExtensionTypeDescriptor) bool {
|
||||
return xtd.ContainingMessage() == md && md.ExtensionRanges().Has(xtd.Number())
|
||||
}
|
||||
|
||||
// isScalarKind reports whether k is a protobuf scalar kind (except bytes).
|
||||
// This function exists for historical reasons since the representation of
|
||||
// scalars differs between v1 and v2, where v1 uses *T and v2 uses T.
|
||||
func isScalarKind(k reflect.Kind) bool {
|
||||
switch k {
|
||||
case reflect.Bool, reflect.Int32, reflect.Int64, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64, reflect.String:
|
||||
return true
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// clearUnknown removes unknown fields from m where remover.Has reports true.
|
||||
func clearUnknown(m protoreflect.Message, remover interface {
|
||||
Has(protoreflect.FieldNumber) bool
|
||||
}) {
|
||||
var bo protoreflect.RawFields
|
||||
for bi := m.GetUnknown(); len(bi) > 0; {
|
||||
num, _, n := protowire.ConsumeField(bi)
|
||||
if !remover.Has(num) {
|
||||
bo = append(bo, bi[:n]...)
|
||||
}
|
||||
bi = bi[n:]
|
||||
}
|
||||
if bi := m.GetUnknown(); len(bi) != len(bo) {
|
||||
m.SetUnknown(bo)
|
||||
}
|
||||
}
|
||||
|
||||
type fieldNum protoreflect.FieldNumber
|
||||
|
||||
func (n1 fieldNum) Has(n2 protoreflect.FieldNumber) bool {
|
||||
return protoreflect.FieldNumber(n1) == n2
|
||||
}
|
306
vendor/github.com/golang/protobuf/proto/properties.go
generated
vendored
Normal file
306
vendor/github.com/golang/protobuf/proto/properties.go
generated
vendored
Normal file
@ -0,0 +1,306 @@
|
||||
// Copyright 2010 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
"google.golang.org/protobuf/runtime/protoimpl"
|
||||
)
|
||||
|
||||
// StructProperties represents protocol buffer type information for a
|
||||
// generated protobuf message in the open-struct API.
|
||||
//
|
||||
// Deprecated: Do not use.
|
||||
type StructProperties struct {
|
||||
// Prop are the properties for each field.
|
||||
//
|
||||
// Fields belonging to a oneof are stored in OneofTypes instead, with a
|
||||
// single Properties representing the parent oneof held here.
|
||||
//
|
||||
// The order of Prop matches the order of fields in the Go struct.
|
||||
// Struct fields that are not related to protobufs have a "XXX_" prefix
|
||||
// in the Properties.Name and must be ignored by the user.
|
||||
Prop []*Properties
|
||||
|
||||
// OneofTypes contains information about the oneof fields in this message.
|
||||
// It is keyed by the protobuf field name.
|
||||
OneofTypes map[string]*OneofProperties
|
||||
}
|
||||
|
||||
// Properties represents the type information for a protobuf message field.
|
||||
//
|
||||
// Deprecated: Do not use.
|
||||
type Properties struct {
|
||||
// Name is a placeholder name with little meaningful semantic value.
|
||||
// If the name has an "XXX_" prefix, the entire Properties must be ignored.
|
||||
Name string
|
||||
// OrigName is the protobuf field name or oneof name.
|
||||
OrigName string
|
||||
// JSONName is the JSON name for the protobuf field.
|
||||
JSONName string
|
||||
// Enum is a placeholder name for enums.
|
||||
// For historical reasons, this is neither the Go name for the enum,
|
||||
// nor the protobuf name for the enum.
|
||||
Enum string // Deprecated: Do not use.
|
||||
// Weak contains the full name of the weakly referenced message.
|
||||
Weak string
|
||||
// Wire is a string representation of the wire type.
|
||||
Wire string
|
||||
// WireType is the protobuf wire type for the field.
|
||||
WireType int
|
||||
// Tag is the protobuf field number.
|
||||
Tag int
|
||||
// Required reports whether this is a required field.
|
||||
Required bool
|
||||
// Optional reports whether this is a optional field.
|
||||
Optional bool
|
||||
// Repeated reports whether this is a repeated field.
|
||||
Repeated bool
|
||||
// Packed reports whether this is a packed repeated field of scalars.
|
||||
Packed bool
|
||||
// Proto3 reports whether this field operates under the proto3 syntax.
|
||||
Proto3 bool
|
||||
// Oneof reports whether this field belongs within a oneof.
|
||||
Oneof bool
|
||||
|
||||
// Default is the default value in string form.
|
||||
Default string
|
||||
// HasDefault reports whether the field has a default value.
|
||||
HasDefault bool
|
||||
|
||||
// MapKeyProp is the properties for the key field for a map field.
|
||||
MapKeyProp *Properties
|
||||
// MapValProp is the properties for the value field for a map field.
|
||||
MapValProp *Properties
|
||||
}
|
||||
|
||||
// OneofProperties represents the type information for a protobuf oneof.
|
||||
//
|
||||
// Deprecated: Do not use.
|
||||
type OneofProperties struct {
|
||||
// Type is a pointer to the generated wrapper type for the field value.
|
||||
// This is nil for messages that are not in the open-struct API.
|
||||
Type reflect.Type
|
||||
// Field is the index into StructProperties.Prop for the containing oneof.
|
||||
Field int
|
||||
// Prop is the properties for the field.
|
||||
Prop *Properties
|
||||
}
|
||||
|
||||
// String formats the properties in the protobuf struct field tag style.
|
||||
func (p *Properties) String() string {
|
||||
s := p.Wire
|
||||
s += "," + strconv.Itoa(p.Tag)
|
||||
if p.Required {
|
||||
s += ",req"
|
||||
}
|
||||
if p.Optional {
|
||||
s += ",opt"
|
||||
}
|
||||
if p.Repeated {
|
||||
s += ",rep"
|
||||
}
|
||||
if p.Packed {
|
||||
s += ",packed"
|
||||
}
|
||||
s += ",name=" + p.OrigName
|
||||
if p.JSONName != "" {
|
||||
s += ",json=" + p.JSONName
|
||||
}
|
||||
if len(p.Enum) > 0 {
|
||||
s += ",enum=" + p.Enum
|
||||
}
|
||||
if len(p.Weak) > 0 {
|
||||
s += ",weak=" + p.Weak
|
||||
}
|
||||
if p.Proto3 {
|
||||
s += ",proto3"
|
||||
}
|
||||
if p.Oneof {
|
||||
s += ",oneof"
|
||||
}
|
||||
if p.HasDefault {
|
||||
s += ",def=" + p.Default
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
// Parse populates p by parsing a string in the protobuf struct field tag style.
|
||||
func (p *Properties) Parse(tag string) {
|
||||
// For example: "bytes,49,opt,name=foo,def=hello!"
|
||||
for len(tag) > 0 {
|
||||
i := strings.IndexByte(tag, ',')
|
||||
if i < 0 {
|
||||
i = len(tag)
|
||||
}
|
||||
switch s := tag[:i]; {
|
||||
case strings.HasPrefix(s, "name="):
|
||||
p.OrigName = s[len("name="):]
|
||||
case strings.HasPrefix(s, "json="):
|
||||
p.JSONName = s[len("json="):]
|
||||
case strings.HasPrefix(s, "enum="):
|
||||
p.Enum = s[len("enum="):]
|
||||
case strings.HasPrefix(s, "weak="):
|
||||
p.Weak = s[len("weak="):]
|
||||
case strings.Trim(s, "0123456789") == "":
|
||||
n, _ := strconv.ParseUint(s, 10, 32)
|
||||
p.Tag = int(n)
|
||||
case s == "opt":
|
||||
p.Optional = true
|
||||
case s == "req":
|
||||
p.Required = true
|
||||
case s == "rep":
|
||||
p.Repeated = true
|
||||
case s == "varint" || s == "zigzag32" || s == "zigzag64":
|
||||
p.Wire = s
|
||||
p.WireType = WireVarint
|
||||
case s == "fixed32":
|
||||
p.Wire = s
|
||||
p.WireType = WireFixed32
|
||||
case s == "fixed64":
|
||||
p.Wire = s
|
||||
p.WireType = WireFixed64
|
||||
case s == "bytes":
|
||||
p.Wire = s
|
||||
p.WireType = WireBytes
|
||||
case s == "group":
|
||||
p.Wire = s
|
||||
p.WireType = WireStartGroup
|
||||
case s == "packed":
|
||||
p.Packed = true
|
||||
case s == "proto3":
|
||||
p.Proto3 = true
|
||||
case s == "oneof":
|
||||
p.Oneof = true
|
||||
case strings.HasPrefix(s, "def="):
|
||||
// The default tag is special in that everything afterwards is the
|
||||
// default regardless of the presence of commas.
|
||||
p.HasDefault = true
|
||||
p.Default, i = tag[len("def="):], len(tag)
|
||||
}
|
||||
tag = strings.TrimPrefix(tag[i:], ",")
|
||||
}
|
||||
}
|
||||
|
||||
// Init populates the properties from a protocol buffer struct tag.
|
||||
//
|
||||
// Deprecated: Do not use.
|
||||
func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) {
|
||||
p.Name = name
|
||||
p.OrigName = name
|
||||
if tag == "" {
|
||||
return
|
||||
}
|
||||
p.Parse(tag)
|
||||
|
||||
if typ != nil && typ.Kind() == reflect.Map {
|
||||
p.MapKeyProp = new(Properties)
|
||||
p.MapKeyProp.Init(nil, "Key", f.Tag.Get("protobuf_key"), nil)
|
||||
p.MapValProp = new(Properties)
|
||||
p.MapValProp.Init(nil, "Value", f.Tag.Get("protobuf_val"), nil)
|
||||
}
|
||||
}
|
||||
|
||||
var propertiesCache sync.Map // map[reflect.Type]*StructProperties
|
||||
|
||||
// GetProperties returns the list of properties for the type represented by t,
|
||||
// which must be a generated protocol buffer message in the open-struct API,
|
||||
// where protobuf message fields are represented by exported Go struct fields.
|
||||
//
|
||||
// Deprecated: Use protobuf reflection instead.
|
||||
func GetProperties(t reflect.Type) *StructProperties {
|
||||
if p, ok := propertiesCache.Load(t); ok {
|
||||
return p.(*StructProperties)
|
||||
}
|
||||
p, _ := propertiesCache.LoadOrStore(t, newProperties(t))
|
||||
return p.(*StructProperties)
|
||||
}
|
||||
|
||||
func newProperties(t reflect.Type) *StructProperties {
|
||||
if t.Kind() != reflect.Struct {
|
||||
panic(fmt.Sprintf("%v is not a generated message in the open-struct API", t))
|
||||
}
|
||||
|
||||
var hasOneof bool
|
||||
prop := new(StructProperties)
|
||||
|
||||
// Construct a list of properties for each field in the struct.
|
||||
for i := 0; i < t.NumField(); i++ {
|
||||
p := new(Properties)
|
||||
f := t.Field(i)
|
||||
tagField := f.Tag.Get("protobuf")
|
||||
p.Init(f.Type, f.Name, tagField, &f)
|
||||
|
||||
tagOneof := f.Tag.Get("protobuf_oneof")
|
||||
if tagOneof != "" {
|
||||
hasOneof = true
|
||||
p.OrigName = tagOneof
|
||||
}
|
||||
|
||||
// Rename unrelated struct fields with the "XXX_" prefix since so much
|
||||
// user code simply checks for this to exclude special fields.
|
||||
if tagField == "" && tagOneof == "" && !strings.HasPrefix(p.Name, "XXX_") {
|
||||
p.Name = "XXX_" + p.Name
|
||||
p.OrigName = "XXX_" + p.OrigName
|
||||
} else if p.Weak != "" {
|
||||
p.Name = p.OrigName // avoid possible "XXX_" prefix on weak field
|
||||
}
|
||||
|
||||
prop.Prop = append(prop.Prop, p)
|
||||
}
|
||||
|
||||
// Construct a mapping of oneof field names to properties.
|
||||
if hasOneof {
|
||||
var oneofWrappers []interface{}
|
||||
if fn, ok := reflect.PtrTo(t).MethodByName("XXX_OneofFuncs"); ok {
|
||||
oneofWrappers = fn.Func.Call([]reflect.Value{reflect.Zero(fn.Type.In(0))})[3].Interface().([]interface{})
|
||||
}
|
||||
if fn, ok := reflect.PtrTo(t).MethodByName("XXX_OneofWrappers"); ok {
|
||||
oneofWrappers = fn.Func.Call([]reflect.Value{reflect.Zero(fn.Type.In(0))})[0].Interface().([]interface{})
|
||||
}
|
||||
if m, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(protoreflect.ProtoMessage); ok {
|
||||
if m, ok := m.ProtoReflect().(interface{ ProtoMessageInfo() *protoimpl.MessageInfo }); ok {
|
||||
oneofWrappers = m.ProtoMessageInfo().OneofWrappers
|
||||
}
|
||||
}
|
||||
|
||||
prop.OneofTypes = make(map[string]*OneofProperties)
|
||||
for _, wrapper := range oneofWrappers {
|
||||
p := &OneofProperties{
|
||||
Type: reflect.ValueOf(wrapper).Type(), // *T
|
||||
Prop: new(Properties),
|
||||
}
|
||||
f := p.Type.Elem().Field(0)
|
||||
p.Prop.Name = f.Name
|
||||
p.Prop.Parse(f.Tag.Get("protobuf"))
|
||||
|
||||
// Determine the struct field that contains this oneof.
|
||||
// Each wrapper is assignable to exactly one parent field.
|
||||
var foundOneof bool
|
||||
for i := 0; i < t.NumField() && !foundOneof; i++ {
|
||||
if p.Type.AssignableTo(t.Field(i).Type) {
|
||||
p.Field = i
|
||||
foundOneof = true
|
||||
}
|
||||
}
|
||||
if !foundOneof {
|
||||
panic(fmt.Sprintf("%v is not a generated message in the open-struct API", t))
|
||||
}
|
||||
prop.OneofTypes[p.Prop.OrigName] = p
|
||||
}
|
||||
}
|
||||
|
||||
return prop
|
||||
}
|
||||
|
||||
func (sp *StructProperties) Len() int { return len(sp.Prop) }
|
||||
func (sp *StructProperties) Less(i, j int) bool { return false }
|
||||
func (sp *StructProperties) Swap(i, j int) { return }
|
167
vendor/github.com/golang/protobuf/proto/proto.go
generated
vendored
Normal file
167
vendor/github.com/golang/protobuf/proto/proto.go
generated
vendored
Normal file
@ -0,0 +1,167 @@
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package proto provides functionality for handling protocol buffer messages.
|
||||
// In particular, it provides marshaling and unmarshaling between a protobuf
|
||||
// message and the binary wire format.
|
||||
//
|
||||
// See https://developers.google.com/protocol-buffers/docs/gotutorial for
|
||||
// more information.
|
||||
//
|
||||
// Deprecated: Use the "google.golang.org/protobuf/proto" package instead.
|
||||
package proto
|
||||
|
||||
import (
|
||||
protoV2 "google.golang.org/protobuf/proto"
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
"google.golang.org/protobuf/runtime/protoiface"
|
||||
"google.golang.org/protobuf/runtime/protoimpl"
|
||||
)
|
||||
|
||||
const (
|
||||
ProtoPackageIsVersion1 = true
|
||||
ProtoPackageIsVersion2 = true
|
||||
ProtoPackageIsVersion3 = true
|
||||
ProtoPackageIsVersion4 = true
|
||||
)
|
||||
|
||||
// GeneratedEnum is any enum type generated by protoc-gen-go
|
||||
// which is a named int32 kind.
|
||||
// This type exists for documentation purposes.
|
||||
type GeneratedEnum interface{}
|
||||
|
||||
// GeneratedMessage is any message type generated by protoc-gen-go
|
||||
// which is a pointer to a named struct kind.
|
||||
// This type exists for documentation purposes.
|
||||
type GeneratedMessage interface{}
|
||||
|
||||
// Message is a protocol buffer message.
|
||||
//
|
||||
// This is the v1 version of the message interface and is marginally better
|
||||
// than an empty interface as it lacks any method to programatically interact
|
||||
// with the contents of the message.
|
||||
//
|
||||
// A v2 message is declared in "google.golang.org/protobuf/proto".Message and
|
||||
// exposes protobuf reflection as a first-class feature of the interface.
|
||||
//
|
||||
// To convert a v1 message to a v2 message, use the MessageV2 function.
|
||||
// To convert a v2 message to a v1 message, use the MessageV1 function.
|
||||
type Message = protoiface.MessageV1
|
||||
|
||||
// MessageV1 converts either a v1 or v2 message to a v1 message.
|
||||
// It returns nil if m is nil.
|
||||
func MessageV1(m GeneratedMessage) protoiface.MessageV1 {
|
||||
return protoimpl.X.ProtoMessageV1Of(m)
|
||||
}
|
||||
|
||||
// MessageV2 converts either a v1 or v2 message to a v2 message.
|
||||
// It returns nil if m is nil.
|
||||
func MessageV2(m GeneratedMessage) protoV2.Message {
|
||||
return protoimpl.X.ProtoMessageV2Of(m)
|
||||
}
|
||||
|
||||
// MessageReflect returns a reflective view for a message.
|
||||
// It returns nil if m is nil.
|
||||
func MessageReflect(m Message) protoreflect.Message {
|
||||
return protoimpl.X.MessageOf(m)
|
||||
}
|
||||
|
||||
// Marshaler is implemented by messages that can marshal themselves.
|
||||
// This interface is used by the following functions: Size, Marshal,
|
||||
// Buffer.Marshal, and Buffer.EncodeMessage.
|
||||
//
|
||||
// Deprecated: Do not implement.
|
||||
type Marshaler interface {
|
||||
// Marshal formats the encoded bytes of the message.
|
||||
// It should be deterministic and emit valid protobuf wire data.
|
||||
// The caller takes ownership of the returned buffer.
|
||||
Marshal() ([]byte, error)
|
||||
}
|
||||
|
||||
// Unmarshaler is implemented by messages that can unmarshal themselves.
|
||||
// This interface is used by the following functions: Unmarshal, UnmarshalMerge,
|
||||
// Buffer.Unmarshal, Buffer.DecodeMessage, and Buffer.DecodeGroup.
|
||||
//
|
||||
// Deprecated: Do not implement.
|
||||
type Unmarshaler interface {
|
||||
// Unmarshal parses the encoded bytes of the protobuf wire input.
|
||||
// The provided buffer is only valid for during method call.
|
||||
// It should not reset the receiver message.
|
||||
Unmarshal([]byte) error
|
||||
}
|
||||
|
||||
// Merger is implemented by messages that can merge themselves.
|
||||
// This interface is used by the following functions: Clone and Merge.
|
||||
//
|
||||
// Deprecated: Do not implement.
|
||||
type Merger interface {
|
||||
// Merge merges the contents of src into the receiver message.
|
||||
// It clones all data structures in src such that it aliases no mutable
|
||||
// memory referenced by src.
|
||||
Merge(src Message)
|
||||
}
|
||||
|
||||
// RequiredNotSetError is an error type returned when
|
||||
// marshaling or unmarshaling a message with missing required fields.
|
||||
type RequiredNotSetError struct {
|
||||
err error
|
||||
}
|
||||
|
||||
func (e *RequiredNotSetError) Error() string {
|
||||
if e.err != nil {
|
||||
return e.err.Error()
|
||||
}
|
||||
return "proto: required field not set"
|
||||
}
|
||||
func (e *RequiredNotSetError) RequiredNotSet() bool {
|
||||
return true
|
||||
}
|
||||
|
||||
func checkRequiredNotSet(m protoV2.Message) error {
|
||||
if err := protoV2.CheckInitialized(m); err != nil {
|
||||
return &RequiredNotSetError{err: err}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Clone returns a deep copy of src.
|
||||
func Clone(src Message) Message {
|
||||
return MessageV1(protoV2.Clone(MessageV2(src)))
|
||||
}
|
||||
|
||||
// Merge merges src into dst, which must be messages of the same type.
|
||||
//
|
||||
// Populated scalar fields in src are copied to dst, while populated
|
||||
// singular messages in src are merged into dst by recursively calling Merge.
|
||||
// The elements of every list field in src is appended to the corresponded
|
||||
// list fields in dst. The entries of every map field in src is copied into
|
||||
// the corresponding map field in dst, possibly replacing existing entries.
|
||||
// The unknown fields of src are appended to the unknown fields of dst.
|
||||
func Merge(dst, src Message) {
|
||||
protoV2.Merge(MessageV2(dst), MessageV2(src))
|
||||
}
|
||||
|
||||
// Equal reports whether two messages are equal.
|
||||
// If two messages marshal to the same bytes under deterministic serialization,
|
||||
// then Equal is guaranteed to report true.
|
||||
//
|
||||
// Two messages are equal if they are the same protobuf message type,
|
||||
// have the same set of populated known and extension field values,
|
||||
// and the same set of unknown fields values.
|
||||
//
|
||||
// Scalar values are compared with the equivalent of the == operator in Go,
|
||||
// except bytes values which are compared using bytes.Equal and
|
||||
// floating point values which specially treat NaNs as equal.
|
||||
// Message values are compared by recursively calling Equal.
|
||||
// Lists are equal if each element value is also equal.
|
||||
// Maps are equal if they have the same set of keys, where the pair of values
|
||||
// for each key is also equal.
|
||||
func Equal(x, y Message) bool {
|
||||
return protoV2.Equal(MessageV2(x), MessageV2(y))
|
||||
}
|
||||
|
||||
func isMessageSet(md protoreflect.MessageDescriptor) bool {
|
||||
ms, ok := md.(interface{ IsMessageSet() bool })
|
||||
return ok && ms.IsMessageSet()
|
||||
}
|
323
vendor/github.com/golang/protobuf/proto/registry.go
generated
vendored
Normal file
323
vendor/github.com/golang/protobuf/proto/registry.go
generated
vendored
Normal file
@ -0,0 +1,323 @@
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"compress/gzip"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"reflect"
|
||||
"strings"
|
||||
"sync"
|
||||
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
"google.golang.org/protobuf/reflect/protoregistry"
|
||||
"google.golang.org/protobuf/runtime/protoimpl"
|
||||
)
|
||||
|
||||
// filePath is the path to the proto source file.
|
||||
type filePath = string // e.g., "google/protobuf/descriptor.proto"
|
||||
|
||||
// fileDescGZIP is the compressed contents of the encoded FileDescriptorProto.
|
||||
type fileDescGZIP = []byte
|
||||
|
||||
var fileCache sync.Map // map[filePath]fileDescGZIP
|
||||
|
||||
// RegisterFile is called from generated code to register the compressed
|
||||
// FileDescriptorProto with the file path for a proto source file.
|
||||
//
|
||||
// Deprecated: Use protoregistry.GlobalFiles.RegisterFile instead.
|
||||
func RegisterFile(s filePath, d fileDescGZIP) {
|
||||
// Decompress the descriptor.
|
||||
zr, err := gzip.NewReader(bytes.NewReader(d))
|
||||
if err != nil {
|
||||
panic(fmt.Sprintf("proto: invalid compressed file descriptor: %v", err))
|
||||
}
|
||||
b, err := ioutil.ReadAll(zr)
|
||||
if err != nil {
|
||||
panic(fmt.Sprintf("proto: invalid compressed file descriptor: %v", err))
|
||||
}
|
||||
|
||||
// Construct a protoreflect.FileDescriptor from the raw descriptor.
|
||||
// Note that DescBuilder.Build automatically registers the constructed
|
||||
// file descriptor with the v2 registry.
|
||||
protoimpl.DescBuilder{RawDescriptor: b}.Build()
|
||||
|
||||
// Locally cache the raw descriptor form for the file.
|
||||
fileCache.Store(s, d)
|
||||
}
|
||||
|
||||
// FileDescriptor returns the compressed FileDescriptorProto given the file path
|
||||
// for a proto source file. It returns nil if not found.
|
||||
//
|
||||
// Deprecated: Use protoregistry.GlobalFiles.FindFileByPath instead.
|
||||
func FileDescriptor(s filePath) fileDescGZIP {
|
||||
if v, ok := fileCache.Load(s); ok {
|
||||
return v.(fileDescGZIP)
|
||||
}
|
||||
|
||||
// Find the descriptor in the v2 registry.
|
||||
var b []byte
|
||||
if fd, _ := protoregistry.GlobalFiles.FindFileByPath(s); fd != nil {
|
||||
if fd, ok := fd.(interface{ ProtoLegacyRawDesc() []byte }); ok {
|
||||
b = fd.ProtoLegacyRawDesc()
|
||||
} else {
|
||||
// TODO: Use protodesc.ToFileDescriptorProto to construct
|
||||
// a descriptorpb.FileDescriptorProto and marshal it.
|
||||
// However, doing so causes the proto package to have a dependency
|
||||
// on descriptorpb, leading to cyclic dependency issues.
|
||||
}
|
||||
}
|
||||
|
||||
// Locally cache the raw descriptor form for the file.
|
||||
if len(b) > 0 {
|
||||
v, _ := fileCache.LoadOrStore(s, protoimpl.X.CompressGZIP(b))
|
||||
return v.(fileDescGZIP)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// enumName is the name of an enum. For historical reasons, the enum name is
|
||||
// neither the full Go name nor the full protobuf name of the enum.
|
||||
// The name is the dot-separated combination of just the proto package that the
|
||||
// enum is declared within followed by the Go type name of the generated enum.
|
||||
type enumName = string // e.g., "my.proto.package.GoMessage_GoEnum"
|
||||
|
||||
// enumsByName maps enum values by name to their numeric counterpart.
|
||||
type enumsByName = map[string]int32
|
||||
|
||||
// enumsByNumber maps enum values by number to their name counterpart.
|
||||
type enumsByNumber = map[int32]string
|
||||
|
||||
var enumCache sync.Map // map[enumName]enumsByName
|
||||
var numFilesCache sync.Map // map[protoreflect.FullName]int
|
||||
|
||||
// RegisterEnum is called from the generated code to register the mapping of
|
||||
// enum value names to enum numbers for the enum identified by s.
|
||||
//
|
||||
// Deprecated: Use protoregistry.GlobalTypes.RegisterEnum instead.
|
||||
func RegisterEnum(s enumName, _ enumsByNumber, m enumsByName) {
|
||||
if _, ok := enumCache.Load(s); ok {
|
||||
panic("proto: duplicate enum registered: " + s)
|
||||
}
|
||||
enumCache.Store(s, m)
|
||||
|
||||
// This does not forward registration to the v2 registry since this API
|
||||
// lacks sufficient information to construct a complete v2 enum descriptor.
|
||||
}
|
||||
|
||||
// EnumValueMap returns the mapping from enum value names to enum numbers for
|
||||
// the enum of the given name. It returns nil if not found.
|
||||
//
|
||||
// Deprecated: Use protoregistry.GlobalTypes.FindEnumByName instead.
|
||||
func EnumValueMap(s enumName) enumsByName {
|
||||
if v, ok := enumCache.Load(s); ok {
|
||||
return v.(enumsByName)
|
||||
}
|
||||
|
||||
// Check whether the cache is stale. If the number of files in the current
|
||||
// package differs, then it means that some enums may have been recently
|
||||
// registered upstream that we do not know about.
|
||||
var protoPkg protoreflect.FullName
|
||||
if i := strings.LastIndexByte(s, '.'); i >= 0 {
|
||||
protoPkg = protoreflect.FullName(s[:i])
|
||||
}
|
||||
v, _ := numFilesCache.Load(protoPkg)
|
||||
numFiles, _ := v.(int)
|
||||
if protoregistry.GlobalFiles.NumFilesByPackage(protoPkg) == numFiles {
|
||||
return nil // cache is up-to-date; was not found earlier
|
||||
}
|
||||
|
||||
// Update the enum cache for all enums declared in the given proto package.
|
||||
numFiles = 0
|
||||
protoregistry.GlobalFiles.RangeFilesByPackage(protoPkg, func(fd protoreflect.FileDescriptor) bool {
|
||||
walkEnums(fd, func(ed protoreflect.EnumDescriptor) {
|
||||
name := protoimpl.X.LegacyEnumName(ed)
|
||||
if _, ok := enumCache.Load(name); !ok {
|
||||
m := make(enumsByName)
|
||||
evs := ed.Values()
|
||||
for i := evs.Len() - 1; i >= 0; i-- {
|
||||
ev := evs.Get(i)
|
||||
m[string(ev.Name())] = int32(ev.Number())
|
||||
}
|
||||
enumCache.LoadOrStore(name, m)
|
||||
}
|
||||
})
|
||||
numFiles++
|
||||
return true
|
||||
})
|
||||
numFilesCache.Store(protoPkg, numFiles)
|
||||
|
||||
// Check cache again for enum map.
|
||||
if v, ok := enumCache.Load(s); ok {
|
||||
return v.(enumsByName)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// walkEnums recursively walks all enums declared in d.
|
||||
func walkEnums(d interface {
|
||||
Enums() protoreflect.EnumDescriptors
|
||||
Messages() protoreflect.MessageDescriptors
|
||||
}, f func(protoreflect.EnumDescriptor)) {
|
||||
eds := d.Enums()
|
||||
for i := eds.Len() - 1; i >= 0; i-- {
|
||||
f(eds.Get(i))
|
||||
}
|
||||
mds := d.Messages()
|
||||
for i := mds.Len() - 1; i >= 0; i-- {
|
||||
walkEnums(mds.Get(i), f)
|
||||
}
|
||||
}
|
||||
|
||||
// messageName is the full name of protobuf message.
|
||||
type messageName = string
|
||||
|
||||
var messageTypeCache sync.Map // map[messageName]reflect.Type
|
||||
|
||||
// RegisterType is called from generated code to register the message Go type
|
||||
// for a message of the given name.
|
||||
//
|
||||
// Deprecated: Use protoregistry.GlobalTypes.RegisterMessage instead.
|
||||
func RegisterType(m Message, s messageName) {
|
||||
mt := protoimpl.X.LegacyMessageTypeOf(m, protoreflect.FullName(s))
|
||||
if err := protoregistry.GlobalTypes.RegisterMessage(mt); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
messageTypeCache.Store(s, reflect.TypeOf(m))
|
||||
}
|
||||
|
||||
// RegisterMapType is called from generated code to register the Go map type
|
||||
// for a protobuf message representing a map entry.
|
||||
//
|
||||
// Deprecated: Do not use.
|
||||
func RegisterMapType(m interface{}, s messageName) {
|
||||
t := reflect.TypeOf(m)
|
||||
if t.Kind() != reflect.Map {
|
||||
panic(fmt.Sprintf("invalid map kind: %v", t))
|
||||
}
|
||||
if _, ok := messageTypeCache.Load(s); ok {
|
||||
panic(fmt.Errorf("proto: duplicate proto message registered: %s", s))
|
||||
}
|
||||
messageTypeCache.Store(s, t)
|
||||
}
|
||||
|
||||
// MessageType returns the message type for a named message.
|
||||
// It returns nil if not found.
|
||||
//
|
||||
// Deprecated: Use protoregistry.GlobalTypes.FindMessageByName instead.
|
||||
func MessageType(s messageName) reflect.Type {
|
||||
if v, ok := messageTypeCache.Load(s); ok {
|
||||
return v.(reflect.Type)
|
||||
}
|
||||
|
||||
// Derive the message type from the v2 registry.
|
||||
var t reflect.Type
|
||||
if mt, _ := protoregistry.GlobalTypes.FindMessageByName(protoreflect.FullName(s)); mt != nil {
|
||||
t = messageGoType(mt)
|
||||
}
|
||||
|
||||
// If we could not get a concrete type, it is possible that it is a
|
||||
// pseudo-message for a map entry.
|
||||
if t == nil {
|
||||
d, _ := protoregistry.GlobalFiles.FindDescriptorByName(protoreflect.FullName(s))
|
||||
if md, _ := d.(protoreflect.MessageDescriptor); md != nil && md.IsMapEntry() {
|
||||
kt := goTypeForField(md.Fields().ByNumber(1))
|
||||
vt := goTypeForField(md.Fields().ByNumber(2))
|
||||
t = reflect.MapOf(kt, vt)
|
||||
}
|
||||
}
|
||||
|
||||
// Locally cache the message type for the given name.
|
||||
if t != nil {
|
||||
v, _ := messageTypeCache.LoadOrStore(s, t)
|
||||
return v.(reflect.Type)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func goTypeForField(fd protoreflect.FieldDescriptor) reflect.Type {
|
||||
switch k := fd.Kind(); k {
|
||||
case protoreflect.EnumKind:
|
||||
if et, _ := protoregistry.GlobalTypes.FindEnumByName(fd.Enum().FullName()); et != nil {
|
||||
return enumGoType(et)
|
||||
}
|
||||
return reflect.TypeOf(protoreflect.EnumNumber(0))
|
||||
case protoreflect.MessageKind, protoreflect.GroupKind:
|
||||
if mt, _ := protoregistry.GlobalTypes.FindMessageByName(fd.Message().FullName()); mt != nil {
|
||||
return messageGoType(mt)
|
||||
}
|
||||
return reflect.TypeOf((*protoreflect.Message)(nil)).Elem()
|
||||
default:
|
||||
return reflect.TypeOf(fd.Default().Interface())
|
||||
}
|
||||
}
|
||||
|
||||
func enumGoType(et protoreflect.EnumType) reflect.Type {
|
||||
return reflect.TypeOf(et.New(0))
|
||||
}
|
||||
|
||||
func messageGoType(mt protoreflect.MessageType) reflect.Type {
|
||||
return reflect.TypeOf(MessageV1(mt.Zero().Interface()))
|
||||
}
|
||||
|
||||
// MessageName returns the full protobuf name for the given message type.
|
||||
//
|
||||
// Deprecated: Use protoreflect.MessageDescriptor.FullName instead.
|
||||
func MessageName(m Message) messageName {
|
||||
if m == nil {
|
||||
return ""
|
||||
}
|
||||
if m, ok := m.(interface{ XXX_MessageName() messageName }); ok {
|
||||
return m.XXX_MessageName()
|
||||
}
|
||||
return messageName(protoimpl.X.MessageDescriptorOf(m).FullName())
|
||||
}
|
||||
|
||||
// RegisterExtension is called from the generated code to register
|
||||
// the extension descriptor.
|
||||
//
|
||||
// Deprecated: Use protoregistry.GlobalTypes.RegisterExtension instead.
|
||||
func RegisterExtension(d *ExtensionDesc) {
|
||||
if err := protoregistry.GlobalTypes.RegisterExtension(d); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
type extensionsByNumber = map[int32]*ExtensionDesc
|
||||
|
||||
var extensionCache sync.Map // map[messageName]extensionsByNumber
|
||||
|
||||
// RegisteredExtensions returns a map of the registered extensions for the
|
||||
// provided protobuf message, indexed by the extension field number.
|
||||
//
|
||||
// Deprecated: Use protoregistry.GlobalTypes.RangeExtensionsByMessage instead.
|
||||
func RegisteredExtensions(m Message) extensionsByNumber {
|
||||
// Check whether the cache is stale. If the number of extensions for
|
||||
// the given message differs, then it means that some extensions were
|
||||
// recently registered upstream that we do not know about.
|
||||
s := MessageName(m)
|
||||
v, _ := extensionCache.Load(s)
|
||||
xs, _ := v.(extensionsByNumber)
|
||||
if protoregistry.GlobalTypes.NumExtensionsByMessage(protoreflect.FullName(s)) == len(xs) {
|
||||
return xs // cache is up-to-date
|
||||
}
|
||||
|
||||
// Cache is stale, re-compute the extensions map.
|
||||
xs = make(extensionsByNumber)
|
||||
protoregistry.GlobalTypes.RangeExtensionsByMessage(protoreflect.FullName(s), func(xt protoreflect.ExtensionType) bool {
|
||||
if xd, ok := xt.(*ExtensionDesc); ok {
|
||||
xs[int32(xt.TypeDescriptor().Number())] = xd
|
||||
} else {
|
||||
// TODO: This implies that the protoreflect.ExtensionType is a
|
||||
// custom type not generated by protoc-gen-go. We could try and
|
||||
// convert the type to an ExtensionDesc.
|
||||
}
|
||||
return true
|
||||
})
|
||||
extensionCache.Store(s, xs)
|
||||
return xs
|
||||
}
|
801
vendor/github.com/golang/protobuf/proto/text_decode.go
generated
vendored
Normal file
801
vendor/github.com/golang/protobuf/proto/text_decode.go
generated
vendored
Normal file
@ -0,0 +1,801 @@
|
||||
// Copyright 2010 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"encoding"
|
||||
"errors"
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
|
||||
"google.golang.org/protobuf/encoding/prototext"
|
||||
protoV2 "google.golang.org/protobuf/proto"
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
"google.golang.org/protobuf/reflect/protoregistry"
|
||||
)
|
||||
|
||||
const wrapTextUnmarshalV2 = false
|
||||
|
||||
// ParseError is returned by UnmarshalText.
|
||||
type ParseError struct {
|
||||
Message string
|
||||
|
||||
// Deprecated: Do not use.
|
||||
Line, Offset int
|
||||
}
|
||||
|
||||
func (e *ParseError) Error() string {
|
||||
if wrapTextUnmarshalV2 {
|
||||
return e.Message
|
||||
}
|
||||
if e.Line == 1 {
|
||||
return fmt.Sprintf("line 1.%d: %v", e.Offset, e.Message)
|
||||
}
|
||||
return fmt.Sprintf("line %d: %v", e.Line, e.Message)
|
||||
}
|
||||
|
||||
// UnmarshalText parses a proto text formatted string into m.
|
||||
func UnmarshalText(s string, m Message) error {
|
||||
if u, ok := m.(encoding.TextUnmarshaler); ok {
|
||||
return u.UnmarshalText([]byte(s))
|
||||
}
|
||||
|
||||
m.Reset()
|
||||
mi := MessageV2(m)
|
||||
|
||||
if wrapTextUnmarshalV2 {
|
||||
err := prototext.UnmarshalOptions{
|
||||
AllowPartial: true,
|
||||
}.Unmarshal([]byte(s), mi)
|
||||
if err != nil {
|
||||
return &ParseError{Message: err.Error()}
|
||||
}
|
||||
return checkRequiredNotSet(mi)
|
||||
} else {
|
||||
if err := newTextParser(s).unmarshalMessage(mi.ProtoReflect(), ""); err != nil {
|
||||
return err
|
||||
}
|
||||
return checkRequiredNotSet(mi)
|
||||
}
|
||||
}
|
||||
|
||||
type textParser struct {
|
||||
s string // remaining input
|
||||
done bool // whether the parsing is finished (success or error)
|
||||
backed bool // whether back() was called
|
||||
offset, line int
|
||||
cur token
|
||||
}
|
||||
|
||||
type token struct {
|
||||
value string
|
||||
err *ParseError
|
||||
line int // line number
|
||||
offset int // byte number from start of input, not start of line
|
||||
unquoted string // the unquoted version of value, if it was a quoted string
|
||||
}
|
||||
|
||||
func newTextParser(s string) *textParser {
|
||||
p := new(textParser)
|
||||
p.s = s
|
||||
p.line = 1
|
||||
p.cur.line = 1
|
||||
return p
|
||||
}
|
||||
|
||||
func (p *textParser) unmarshalMessage(m protoreflect.Message, terminator string) (err error) {
|
||||
md := m.Descriptor()
|
||||
fds := md.Fields()
|
||||
|
||||
// A struct is a sequence of "name: value", terminated by one of
|
||||
// '>' or '}', or the end of the input. A name may also be
|
||||
// "[extension]" or "[type/url]".
|
||||
//
|
||||
// The whole struct can also be an expanded Any message, like:
|
||||
// [type/url] < ... struct contents ... >
|
||||
seen := make(map[protoreflect.FieldNumber]bool)
|
||||
for {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value == terminator {
|
||||
break
|
||||
}
|
||||
if tok.value == "[" {
|
||||
if err := p.unmarshalExtensionOrAny(m, seen); err != nil {
|
||||
return err
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
// This is a normal, non-extension field.
|
||||
name := protoreflect.Name(tok.value)
|
||||
fd := fds.ByName(name)
|
||||
switch {
|
||||
case fd == nil:
|
||||
gd := fds.ByName(protoreflect.Name(strings.ToLower(string(name))))
|
||||
if gd != nil && gd.Kind() == protoreflect.GroupKind && gd.Message().Name() == name {
|
||||
fd = gd
|
||||
}
|
||||
case fd.Kind() == protoreflect.GroupKind && fd.Message().Name() != name:
|
||||
fd = nil
|
||||
case fd.IsWeak() && fd.Message().IsPlaceholder():
|
||||
fd = nil
|
||||
}
|
||||
if fd == nil {
|
||||
typeName := string(md.FullName())
|
||||
if m, ok := m.Interface().(Message); ok {
|
||||
t := reflect.TypeOf(m)
|
||||
if t.Kind() == reflect.Ptr {
|
||||
typeName = t.Elem().String()
|
||||
}
|
||||
}
|
||||
return p.errorf("unknown field name %q in %v", name, typeName)
|
||||
}
|
||||
if od := fd.ContainingOneof(); od != nil && m.WhichOneof(od) != nil {
|
||||
return p.errorf("field '%s' would overwrite already parsed oneof '%s'", name, od.Name())
|
||||
}
|
||||
if fd.Cardinality() != protoreflect.Repeated && seen[fd.Number()] {
|
||||
return p.errorf("non-repeated field %q was repeated", fd.Name())
|
||||
}
|
||||
seen[fd.Number()] = true
|
||||
|
||||
// Consume any colon.
|
||||
if err := p.checkForColon(fd); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Parse into the field.
|
||||
v := m.Get(fd)
|
||||
if !m.Has(fd) && (fd.IsList() || fd.IsMap() || fd.Message() != nil) {
|
||||
v = m.Mutable(fd)
|
||||
}
|
||||
if v, err = p.unmarshalValue(v, fd); err != nil {
|
||||
return err
|
||||
}
|
||||
m.Set(fd, v)
|
||||
|
||||
if err := p.consumeOptionalSeparator(); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (p *textParser) unmarshalExtensionOrAny(m protoreflect.Message, seen map[protoreflect.FieldNumber]bool) error {
|
||||
name, err := p.consumeExtensionOrAnyName()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// If it contains a slash, it's an Any type URL.
|
||||
if slashIdx := strings.LastIndex(name, "/"); slashIdx >= 0 {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
// consume an optional colon
|
||||
if tok.value == ":" {
|
||||
tok = p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
}
|
||||
|
||||
var terminator string
|
||||
switch tok.value {
|
||||
case "<":
|
||||
terminator = ">"
|
||||
case "{":
|
||||
terminator = "}"
|
||||
default:
|
||||
return p.errorf("expected '{' or '<', found %q", tok.value)
|
||||
}
|
||||
|
||||
mt, err := protoregistry.GlobalTypes.FindMessageByURL(name)
|
||||
if err != nil {
|
||||
return p.errorf("unrecognized message %q in google.protobuf.Any", name[slashIdx+len("/"):])
|
||||
}
|
||||
m2 := mt.New()
|
||||
if err := p.unmarshalMessage(m2, terminator); err != nil {
|
||||
return err
|
||||
}
|
||||
b, err := protoV2.Marshal(m2.Interface())
|
||||
if err != nil {
|
||||
return p.errorf("failed to marshal message of type %q: %v", name[slashIdx+len("/"):], err)
|
||||
}
|
||||
|
||||
urlFD := m.Descriptor().Fields().ByName("type_url")
|
||||
valFD := m.Descriptor().Fields().ByName("value")
|
||||
if seen[urlFD.Number()] {
|
||||
return p.errorf("Any message unpacked multiple times, or %q already set", urlFD.Name())
|
||||
}
|
||||
if seen[valFD.Number()] {
|
||||
return p.errorf("Any message unpacked multiple times, or %q already set", valFD.Name())
|
||||
}
|
||||
m.Set(urlFD, protoreflect.ValueOfString(name))
|
||||
m.Set(valFD, protoreflect.ValueOfBytes(b))
|
||||
seen[urlFD.Number()] = true
|
||||
seen[valFD.Number()] = true
|
||||
return nil
|
||||
}
|
||||
|
||||
xname := protoreflect.FullName(name)
|
||||
xt, _ := protoregistry.GlobalTypes.FindExtensionByName(xname)
|
||||
if xt == nil && isMessageSet(m.Descriptor()) {
|
||||
xt, _ = protoregistry.GlobalTypes.FindExtensionByName(xname.Append("message_set_extension"))
|
||||
}
|
||||
if xt == nil {
|
||||
return p.errorf("unrecognized extension %q", name)
|
||||
}
|
||||
fd := xt.TypeDescriptor()
|
||||
if fd.ContainingMessage().FullName() != m.Descriptor().FullName() {
|
||||
return p.errorf("extension field %q does not extend message %q", name, m.Descriptor().FullName())
|
||||
}
|
||||
|
||||
if err := p.checkForColon(fd); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
v := m.Get(fd)
|
||||
if !m.Has(fd) && (fd.IsList() || fd.IsMap() || fd.Message() != nil) {
|
||||
v = m.Mutable(fd)
|
||||
}
|
||||
v, err = p.unmarshalValue(v, fd)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
m.Set(fd, v)
|
||||
return p.consumeOptionalSeparator()
|
||||
}
|
||||
|
||||
func (p *textParser) unmarshalValue(v protoreflect.Value, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return v, tok.err
|
||||
}
|
||||
if tok.value == "" {
|
||||
return v, p.errorf("unexpected EOF")
|
||||
}
|
||||
|
||||
switch {
|
||||
case fd.IsList():
|
||||
lv := v.List()
|
||||
var err error
|
||||
if tok.value == "[" {
|
||||
// Repeated field with list notation, like [1,2,3].
|
||||
for {
|
||||
vv := lv.NewElement()
|
||||
vv, err = p.unmarshalSingularValue(vv, fd)
|
||||
if err != nil {
|
||||
return v, err
|
||||
}
|
||||
lv.Append(vv)
|
||||
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return v, tok.err
|
||||
}
|
||||
if tok.value == "]" {
|
||||
break
|
||||
}
|
||||
if tok.value != "," {
|
||||
return v, p.errorf("Expected ']' or ',' found %q", tok.value)
|
||||
}
|
||||
}
|
||||
return v, nil
|
||||
}
|
||||
|
||||
// One value of the repeated field.
|
||||
p.back()
|
||||
vv := lv.NewElement()
|
||||
vv, err = p.unmarshalSingularValue(vv, fd)
|
||||
if err != nil {
|
||||
return v, err
|
||||
}
|
||||
lv.Append(vv)
|
||||
return v, nil
|
||||
case fd.IsMap():
|
||||
// The map entry should be this sequence of tokens:
|
||||
// < key : KEY value : VALUE >
|
||||
// However, implementations may omit key or value, and technically
|
||||
// we should support them in any order.
|
||||
var terminator string
|
||||
switch tok.value {
|
||||
case "<":
|
||||
terminator = ">"
|
||||
case "{":
|
||||
terminator = "}"
|
||||
default:
|
||||
return v, p.errorf("expected '{' or '<', found %q", tok.value)
|
||||
}
|
||||
|
||||
keyFD := fd.MapKey()
|
||||
valFD := fd.MapValue()
|
||||
|
||||
mv := v.Map()
|
||||
kv := keyFD.Default()
|
||||
vv := mv.NewValue()
|
||||
for {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return v, tok.err
|
||||
}
|
||||
if tok.value == terminator {
|
||||
break
|
||||
}
|
||||
var err error
|
||||
switch tok.value {
|
||||
case "key":
|
||||
if err := p.consumeToken(":"); err != nil {
|
||||
return v, err
|
||||
}
|
||||
if kv, err = p.unmarshalSingularValue(kv, keyFD); err != nil {
|
||||
return v, err
|
||||
}
|
||||
if err := p.consumeOptionalSeparator(); err != nil {
|
||||
return v, err
|
||||
}
|
||||
case "value":
|
||||
if err := p.checkForColon(valFD); err != nil {
|
||||
return v, err
|
||||
}
|
||||
if vv, err = p.unmarshalSingularValue(vv, valFD); err != nil {
|
||||
return v, err
|
||||
}
|
||||
if err := p.consumeOptionalSeparator(); err != nil {
|
||||
return v, err
|
||||
}
|
||||
default:
|
||||
p.back()
|
||||
return v, p.errorf(`expected "key", "value", or %q, found %q`, terminator, tok.value)
|
||||
}
|
||||
}
|
||||
mv.Set(kv.MapKey(), vv)
|
||||
return v, nil
|
||||
default:
|
||||
p.back()
|
||||
return p.unmarshalSingularValue(v, fd)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *textParser) unmarshalSingularValue(v protoreflect.Value, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return v, tok.err
|
||||
}
|
||||
if tok.value == "" {
|
||||
return v, p.errorf("unexpected EOF")
|
||||
}
|
||||
|
||||
switch fd.Kind() {
|
||||
case protoreflect.BoolKind:
|
||||
switch tok.value {
|
||||
case "true", "1", "t", "True":
|
||||
return protoreflect.ValueOfBool(true), nil
|
||||
case "false", "0", "f", "False":
|
||||
return protoreflect.ValueOfBool(false), nil
|
||||
}
|
||||
case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind:
|
||||
if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
|
||||
return protoreflect.ValueOfInt32(int32(x)), nil
|
||||
}
|
||||
|
||||
// The C++ parser accepts large positive hex numbers that uses
|
||||
// two's complement arithmetic to represent negative numbers.
|
||||
// This feature is here for backwards compatibility with C++.
|
||||
if strings.HasPrefix(tok.value, "0x") {
|
||||
if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
|
||||
return protoreflect.ValueOfInt32(int32(-(int64(^x) + 1))), nil
|
||||
}
|
||||
}
|
||||
case protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
|
||||
if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil {
|
||||
return protoreflect.ValueOfInt64(int64(x)), nil
|
||||
}
|
||||
|
||||
// The C++ parser accepts large positive hex numbers that uses
|
||||
// two's complement arithmetic to represent negative numbers.
|
||||
// This feature is here for backwards compatibility with C++.
|
||||
if strings.HasPrefix(tok.value, "0x") {
|
||||
if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
|
||||
return protoreflect.ValueOfInt64(int64(-(int64(^x) + 1))), nil
|
||||
}
|
||||
}
|
||||
case protoreflect.Uint32Kind, protoreflect.Fixed32Kind:
|
||||
if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
|
||||
return protoreflect.ValueOfUint32(uint32(x)), nil
|
||||
}
|
||||
case protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
|
||||
if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
|
||||
return protoreflect.ValueOfUint64(uint64(x)), nil
|
||||
}
|
||||
case protoreflect.FloatKind:
|
||||
// Ignore 'f' for compatibility with output generated by C++,
|
||||
// but don't remove 'f' when the value is "-inf" or "inf".
|
||||
v := tok.value
|
||||
if strings.HasSuffix(v, "f") && v != "-inf" && v != "inf" {
|
||||
v = v[:len(v)-len("f")]
|
||||
}
|
||||
if x, err := strconv.ParseFloat(v, 32); err == nil {
|
||||
return protoreflect.ValueOfFloat32(float32(x)), nil
|
||||
}
|
||||
case protoreflect.DoubleKind:
|
||||
// Ignore 'f' for compatibility with output generated by C++,
|
||||
// but don't remove 'f' when the value is "-inf" or "inf".
|
||||
v := tok.value
|
||||
if strings.HasSuffix(v, "f") && v != "-inf" && v != "inf" {
|
||||
v = v[:len(v)-len("f")]
|
||||
}
|
||||
if x, err := strconv.ParseFloat(v, 64); err == nil {
|
||||
return protoreflect.ValueOfFloat64(float64(x)), nil
|
||||
}
|
||||
case protoreflect.StringKind:
|
||||
if isQuote(tok.value[0]) {
|
||||
return protoreflect.ValueOfString(tok.unquoted), nil
|
||||
}
|
||||
case protoreflect.BytesKind:
|
||||
if isQuote(tok.value[0]) {
|
||||
return protoreflect.ValueOfBytes([]byte(tok.unquoted)), nil
|
||||
}
|
||||
case protoreflect.EnumKind:
|
||||
if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
|
||||
return protoreflect.ValueOfEnum(protoreflect.EnumNumber(x)), nil
|
||||
}
|
||||
vd := fd.Enum().Values().ByName(protoreflect.Name(tok.value))
|
||||
if vd != nil {
|
||||
return protoreflect.ValueOfEnum(vd.Number()), nil
|
||||
}
|
||||
case protoreflect.MessageKind, protoreflect.GroupKind:
|
||||
var terminator string
|
||||
switch tok.value {
|
||||
case "{":
|
||||
terminator = "}"
|
||||
case "<":
|
||||
terminator = ">"
|
||||
default:
|
||||
return v, p.errorf("expected '{' or '<', found %q", tok.value)
|
||||
}
|
||||
err := p.unmarshalMessage(v.Message(), terminator)
|
||||
return v, err
|
||||
default:
|
||||
panic(fmt.Sprintf("invalid kind %v", fd.Kind()))
|
||||
}
|
||||
return v, p.errorf("invalid %v: %v", fd.Kind(), tok.value)
|
||||
}
|
||||
|
||||
// Consume a ':' from the input stream (if the next token is a colon),
|
||||
// returning an error if a colon is needed but not present.
|
||||
func (p *textParser) checkForColon(fd protoreflect.FieldDescriptor) *ParseError {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value != ":" {
|
||||
if fd.Message() == nil {
|
||||
return p.errorf("expected ':', found %q", tok.value)
|
||||
}
|
||||
p.back()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// consumeExtensionOrAnyName consumes an extension name or an Any type URL and
|
||||
// the following ']'. It returns the name or URL consumed.
|
||||
func (p *textParser) consumeExtensionOrAnyName() (string, error) {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return "", tok.err
|
||||
}
|
||||
|
||||
// If extension name or type url is quoted, it's a single token.
|
||||
if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] {
|
||||
name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0]))
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
return name, p.consumeToken("]")
|
||||
}
|
||||
|
||||
// Consume everything up to "]"
|
||||
var parts []string
|
||||
for tok.value != "]" {
|
||||
parts = append(parts, tok.value)
|
||||
tok = p.next()
|
||||
if tok.err != nil {
|
||||
return "", p.errorf("unrecognized type_url or extension name: %s", tok.err)
|
||||
}
|
||||
if p.done && tok.value != "]" {
|
||||
return "", p.errorf("unclosed type_url or extension name")
|
||||
}
|
||||
}
|
||||
return strings.Join(parts, ""), nil
|
||||
}
|
||||
|
||||
// consumeOptionalSeparator consumes an optional semicolon or comma.
|
||||
// It is used in unmarshalMessage to provide backward compatibility.
|
||||
func (p *textParser) consumeOptionalSeparator() error {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value != ";" && tok.value != "," {
|
||||
p.back()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (p *textParser) errorf(format string, a ...interface{}) *ParseError {
|
||||
pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset}
|
||||
p.cur.err = pe
|
||||
p.done = true
|
||||
return pe
|
||||
}
|
||||
|
||||
func (p *textParser) skipWhitespace() {
|
||||
i := 0
|
||||
for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
|
||||
if p.s[i] == '#' {
|
||||
// comment; skip to end of line or input
|
||||
for i < len(p.s) && p.s[i] != '\n' {
|
||||
i++
|
||||
}
|
||||
if i == len(p.s) {
|
||||
break
|
||||
}
|
||||
}
|
||||
if p.s[i] == '\n' {
|
||||
p.line++
|
||||
}
|
||||
i++
|
||||
}
|
||||
p.offset += i
|
||||
p.s = p.s[i:len(p.s)]
|
||||
if len(p.s) == 0 {
|
||||
p.done = true
|
||||
}
|
||||
}
|
||||
|
||||
func (p *textParser) advance() {
|
||||
// Skip whitespace
|
||||
p.skipWhitespace()
|
||||
if p.done {
|
||||
return
|
||||
}
|
||||
|
||||
// Start of non-whitespace
|
||||
p.cur.err = nil
|
||||
p.cur.offset, p.cur.line = p.offset, p.line
|
||||
p.cur.unquoted = ""
|
||||
switch p.s[0] {
|
||||
case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/':
|
||||
// Single symbol
|
||||
p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
|
||||
case '"', '\'':
|
||||
// Quoted string
|
||||
i := 1
|
||||
for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' {
|
||||
if p.s[i] == '\\' && i+1 < len(p.s) {
|
||||
// skip escaped char
|
||||
i++
|
||||
}
|
||||
i++
|
||||
}
|
||||
if i >= len(p.s) || p.s[i] != p.s[0] {
|
||||
p.errorf("unmatched quote")
|
||||
return
|
||||
}
|
||||
unq, err := unquoteC(p.s[1:i], rune(p.s[0]))
|
||||
if err != nil {
|
||||
p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err)
|
||||
return
|
||||
}
|
||||
p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)]
|
||||
p.cur.unquoted = unq
|
||||
default:
|
||||
i := 0
|
||||
for i < len(p.s) && isIdentOrNumberChar(p.s[i]) {
|
||||
i++
|
||||
}
|
||||
if i == 0 {
|
||||
p.errorf("unexpected byte %#x", p.s[0])
|
||||
return
|
||||
}
|
||||
p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)]
|
||||
}
|
||||
p.offset += len(p.cur.value)
|
||||
}
|
||||
|
||||
// Back off the parser by one token. Can only be done between calls to next().
|
||||
// It makes the next advance() a no-op.
|
||||
func (p *textParser) back() { p.backed = true }
|
||||
|
||||
// Advances the parser and returns the new current token.
|
||||
func (p *textParser) next() *token {
|
||||
if p.backed || p.done {
|
||||
p.backed = false
|
||||
return &p.cur
|
||||
}
|
||||
p.advance()
|
||||
if p.done {
|
||||
p.cur.value = ""
|
||||
} else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) {
|
||||
// Look for multiple quoted strings separated by whitespace,
|
||||
// and concatenate them.
|
||||
cat := p.cur
|
||||
for {
|
||||
p.skipWhitespace()
|
||||
if p.done || !isQuote(p.s[0]) {
|
||||
break
|
||||
}
|
||||
p.advance()
|
||||
if p.cur.err != nil {
|
||||
return &p.cur
|
||||
}
|
||||
cat.value += " " + p.cur.value
|
||||
cat.unquoted += p.cur.unquoted
|
||||
}
|
||||
p.done = false // parser may have seen EOF, but we want to return cat
|
||||
p.cur = cat
|
||||
}
|
||||
return &p.cur
|
||||
}
|
||||
|
||||
func (p *textParser) consumeToken(s string) error {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value != s {
|
||||
p.back()
|
||||
return p.errorf("expected %q, found %q", s, tok.value)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
var errBadUTF8 = errors.New("proto: bad UTF-8")
|
||||
|
||||
func unquoteC(s string, quote rune) (string, error) {
|
||||
// This is based on C++'s tokenizer.cc.
|
||||
// Despite its name, this is *not* parsing C syntax.
|
||||
// For instance, "\0" is an invalid quoted string.
|
||||
|
||||
// Avoid allocation in trivial cases.
|
||||
simple := true
|
||||
for _, r := range s {
|
||||
if r == '\\' || r == quote {
|
||||
simple = false
|
||||
break
|
||||
}
|
||||
}
|
||||
if simple {
|
||||
return s, nil
|
||||
}
|
||||
|
||||
buf := make([]byte, 0, 3*len(s)/2)
|
||||
for len(s) > 0 {
|
||||
r, n := utf8.DecodeRuneInString(s)
|
||||
if r == utf8.RuneError && n == 1 {
|
||||
return "", errBadUTF8
|
||||
}
|
||||
s = s[n:]
|
||||
if r != '\\' {
|
||||
if r < utf8.RuneSelf {
|
||||
buf = append(buf, byte(r))
|
||||
} else {
|
||||
buf = append(buf, string(r)...)
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
ch, tail, err := unescape(s)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
buf = append(buf, ch...)
|
||||
s = tail
|
||||
}
|
||||
return string(buf), nil
|
||||
}
|
||||
|
||||
func unescape(s string) (ch string, tail string, err error) {
|
||||
r, n := utf8.DecodeRuneInString(s)
|
||||
if r == utf8.RuneError && n == 1 {
|
||||
return "", "", errBadUTF8
|
||||
}
|
||||
s = s[n:]
|
||||
switch r {
|
||||
case 'a':
|
||||
return "\a", s, nil
|
||||
case 'b':
|
||||
return "\b", s, nil
|
||||
case 'f':
|
||||
return "\f", s, nil
|
||||
case 'n':
|
||||
return "\n", s, nil
|
||||
case 'r':
|
||||
return "\r", s, nil
|
||||
case 't':
|
||||
return "\t", s, nil
|
||||
case 'v':
|
||||
return "\v", s, nil
|
||||
case '?':
|
||||
return "?", s, nil // trigraph workaround
|
||||
case '\'', '"', '\\':
|
||||
return string(r), s, nil
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7':
|
||||
if len(s) < 2 {
|
||||
return "", "", fmt.Errorf(`\%c requires 2 following digits`, r)
|
||||
}
|
||||
ss := string(r) + s[:2]
|
||||
s = s[2:]
|
||||
i, err := strconv.ParseUint(ss, 8, 8)
|
||||
if err != nil {
|
||||
return "", "", fmt.Errorf(`\%s contains non-octal digits`, ss)
|
||||
}
|
||||
return string([]byte{byte(i)}), s, nil
|
||||
case 'x', 'X', 'u', 'U':
|
||||
var n int
|
||||
switch r {
|
||||
case 'x', 'X':
|
||||
n = 2
|
||||
case 'u':
|
||||
n = 4
|
||||
case 'U':
|
||||
n = 8
|
||||
}
|
||||
if len(s) < n {
|
||||
return "", "", fmt.Errorf(`\%c requires %d following digits`, r, n)
|
||||
}
|
||||
ss := s[:n]
|
||||
s = s[n:]
|
||||
i, err := strconv.ParseUint(ss, 16, 64)
|
||||
if err != nil {
|
||||
return "", "", fmt.Errorf(`\%c%s contains non-hexadecimal digits`, r, ss)
|
||||
}
|
||||
if r == 'x' || r == 'X' {
|
||||
return string([]byte{byte(i)}), s, nil
|
||||
}
|
||||
if i > utf8.MaxRune {
|
||||
return "", "", fmt.Errorf(`\%c%s is not a valid Unicode code point`, r, ss)
|
||||
}
|
||||
return string(rune(i)), s, nil
|
||||
}
|
||||
return "", "", fmt.Errorf(`unknown escape \%c`, r)
|
||||
}
|
||||
|
||||
func isIdentOrNumberChar(c byte) bool {
|
||||
switch {
|
||||
case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z':
|
||||
return true
|
||||
case '0' <= c && c <= '9':
|
||||
return true
|
||||
}
|
||||
switch c {
|
||||
case '-', '+', '.', '_':
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func isWhitespace(c byte) bool {
|
||||
switch c {
|
||||
case ' ', '\t', '\n', '\r':
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func isQuote(c byte) bool {
|
||||
switch c {
|
||||
case '"', '\'':
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
560
vendor/github.com/golang/protobuf/proto/text_encode.go
generated
vendored
Normal file
560
vendor/github.com/golang/protobuf/proto/text_encode.go
generated
vendored
Normal file
@ -0,0 +1,560 @@
|
||||
// Copyright 2010 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding"
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
"sort"
|
||||
"strings"
|
||||
|
||||
"google.golang.org/protobuf/encoding/prototext"
|
||||
"google.golang.org/protobuf/encoding/protowire"
|
||||
"google.golang.org/protobuf/proto"
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
"google.golang.org/protobuf/reflect/protoregistry"
|
||||
)
|
||||
|
||||
const wrapTextMarshalV2 = false
|
||||
|
||||
// TextMarshaler is a configurable text format marshaler.
|
||||
type TextMarshaler struct {
|
||||
Compact bool // use compact text format (one line)
|
||||
ExpandAny bool // expand google.protobuf.Any messages of known types
|
||||
}
|
||||
|
||||
// Marshal writes the proto text format of m to w.
|
||||
func (tm *TextMarshaler) Marshal(w io.Writer, m Message) error {
|
||||
b, err := tm.marshal(m)
|
||||
if len(b) > 0 {
|
||||
if _, err := w.Write(b); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// Text returns a proto text formatted string of m.
|
||||
func (tm *TextMarshaler) Text(m Message) string {
|
||||
b, _ := tm.marshal(m)
|
||||
return string(b)
|
||||
}
|
||||
|
||||
func (tm *TextMarshaler) marshal(m Message) ([]byte, error) {
|
||||
mr := MessageReflect(m)
|
||||
if mr == nil || !mr.IsValid() {
|
||||
return []byte("<nil>"), nil
|
||||
}
|
||||
|
||||
if wrapTextMarshalV2 {
|
||||
if m, ok := m.(encoding.TextMarshaler); ok {
|
||||
return m.MarshalText()
|
||||
}
|
||||
|
||||
opts := prototext.MarshalOptions{
|
||||
AllowPartial: true,
|
||||
EmitUnknown: true,
|
||||
}
|
||||
if !tm.Compact {
|
||||
opts.Indent = " "
|
||||
}
|
||||
if !tm.ExpandAny {
|
||||
opts.Resolver = (*protoregistry.Types)(nil)
|
||||
}
|
||||
return opts.Marshal(mr.Interface())
|
||||
} else {
|
||||
w := &textWriter{
|
||||
compact: tm.Compact,
|
||||
expandAny: tm.ExpandAny,
|
||||
complete: true,
|
||||
}
|
||||
|
||||
if m, ok := m.(encoding.TextMarshaler); ok {
|
||||
b, err := m.MarshalText()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
w.Write(b)
|
||||
return w.buf, nil
|
||||
}
|
||||
|
||||
err := w.writeMessage(mr)
|
||||
return w.buf, err
|
||||
}
|
||||
}
|
||||
|
||||
var (
|
||||
defaultTextMarshaler = TextMarshaler{}
|
||||
compactTextMarshaler = TextMarshaler{Compact: true}
|
||||
)
|
||||
|
||||
// MarshalText writes the proto text format of m to w.
|
||||
func MarshalText(w io.Writer, m Message) error { return defaultTextMarshaler.Marshal(w, m) }
|
||||
|
||||
// MarshalTextString returns a proto text formatted string of m.
|
||||
func MarshalTextString(m Message) string { return defaultTextMarshaler.Text(m) }
|
||||
|
||||
// CompactText writes the compact proto text format of m to w.
|
||||
func CompactText(w io.Writer, m Message) error { return compactTextMarshaler.Marshal(w, m) }
|
||||
|
||||
// CompactTextString returns a compact proto text formatted string of m.
|
||||
func CompactTextString(m Message) string { return compactTextMarshaler.Text(m) }
|
||||
|
||||
var (
|
||||
newline = []byte("\n")
|
||||
endBraceNewline = []byte("}\n")
|
||||
posInf = []byte("inf")
|
||||
negInf = []byte("-inf")
|
||||
nan = []byte("nan")
|
||||
)
|
||||
|
||||
// textWriter is an io.Writer that tracks its indentation level.
|
||||
type textWriter struct {
|
||||
compact bool // same as TextMarshaler.Compact
|
||||
expandAny bool // same as TextMarshaler.ExpandAny
|
||||
complete bool // whether the current position is a complete line
|
||||
indent int // indentation level; never negative
|
||||
buf []byte
|
||||
}
|
||||
|
||||
func (w *textWriter) Write(p []byte) (n int, _ error) {
|
||||
newlines := bytes.Count(p, newline)
|
||||
if newlines == 0 {
|
||||
if !w.compact && w.complete {
|
||||
w.writeIndent()
|
||||
}
|
||||
w.buf = append(w.buf, p...)
|
||||
w.complete = false
|
||||
return len(p), nil
|
||||
}
|
||||
|
||||
frags := bytes.SplitN(p, newline, newlines+1)
|
||||
if w.compact {
|
||||
for i, frag := range frags {
|
||||
if i > 0 {
|
||||
w.buf = append(w.buf, ' ')
|
||||
n++
|
||||
}
|
||||
w.buf = append(w.buf, frag...)
|
||||
n += len(frag)
|
||||
}
|
||||
return n, nil
|
||||
}
|
||||
|
||||
for i, frag := range frags {
|
||||
if w.complete {
|
||||
w.writeIndent()
|
||||
}
|
||||
w.buf = append(w.buf, frag...)
|
||||
n += len(frag)
|
||||
if i+1 < len(frags) {
|
||||
w.buf = append(w.buf, '\n')
|
||||
n++
|
||||
}
|
||||
}
|
||||
w.complete = len(frags[len(frags)-1]) == 0
|
||||
return n, nil
|
||||
}
|
||||
|
||||
func (w *textWriter) WriteByte(c byte) error {
|
||||
if w.compact && c == '\n' {
|
||||
c = ' '
|
||||
}
|
||||
if !w.compact && w.complete {
|
||||
w.writeIndent()
|
||||
}
|
||||
w.buf = append(w.buf, c)
|
||||
w.complete = c == '\n'
|
||||
return nil
|
||||
}
|
||||
|
||||
func (w *textWriter) writeName(fd protoreflect.FieldDescriptor) {
|
||||
if !w.compact && w.complete {
|
||||
w.writeIndent()
|
||||
}
|
||||
w.complete = false
|
||||
|
||||
if fd.Kind() != protoreflect.GroupKind {
|
||||
w.buf = append(w.buf, fd.Name()...)
|
||||
w.WriteByte(':')
|
||||
} else {
|
||||
// Use message type name for group field name.
|
||||
w.buf = append(w.buf, fd.Message().Name()...)
|
||||
}
|
||||
|
||||
if !w.compact {
|
||||
w.WriteByte(' ')
|
||||
}
|
||||
}
|
||||
|
||||
func requiresQuotes(u string) bool {
|
||||
// When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted.
|
||||
for _, ch := range u {
|
||||
switch {
|
||||
case ch == '.' || ch == '/' || ch == '_':
|
||||
continue
|
||||
case '0' <= ch && ch <= '9':
|
||||
continue
|
||||
case 'A' <= ch && ch <= 'Z':
|
||||
continue
|
||||
case 'a' <= ch && ch <= 'z':
|
||||
continue
|
||||
default:
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// writeProto3Any writes an expanded google.protobuf.Any message.
|
||||
//
|
||||
// It returns (false, nil) if sv value can't be unmarshaled (e.g. because
|
||||
// required messages are not linked in).
|
||||
//
|
||||
// It returns (true, error) when sv was written in expanded format or an error
|
||||
// was encountered.
|
||||
func (w *textWriter) writeProto3Any(m protoreflect.Message) (bool, error) {
|
||||
md := m.Descriptor()
|
||||
fdURL := md.Fields().ByName("type_url")
|
||||
fdVal := md.Fields().ByName("value")
|
||||
|
||||
url := m.Get(fdURL).String()
|
||||
mt, err := protoregistry.GlobalTypes.FindMessageByURL(url)
|
||||
if err != nil {
|
||||
return false, nil
|
||||
}
|
||||
|
||||
b := m.Get(fdVal).Bytes()
|
||||
m2 := mt.New()
|
||||
if err := proto.Unmarshal(b, m2.Interface()); err != nil {
|
||||
return false, nil
|
||||
}
|
||||
w.Write([]byte("["))
|
||||
if requiresQuotes(url) {
|
||||
w.writeQuotedString(url)
|
||||
} else {
|
||||
w.Write([]byte(url))
|
||||
}
|
||||
if w.compact {
|
||||
w.Write([]byte("]:<"))
|
||||
} else {
|
||||
w.Write([]byte("]: <\n"))
|
||||
w.indent++
|
||||
}
|
||||
if err := w.writeMessage(m2); err != nil {
|
||||
return true, err
|
||||
}
|
||||
if w.compact {
|
||||
w.Write([]byte("> "))
|
||||
} else {
|
||||
w.indent--
|
||||
w.Write([]byte(">\n"))
|
||||
}
|
||||
return true, nil
|
||||
}
|
||||
|
||||
func (w *textWriter) writeMessage(m protoreflect.Message) error {
|
||||
md := m.Descriptor()
|
||||
if w.expandAny && md.FullName() == "google.protobuf.Any" {
|
||||
if canExpand, err := w.writeProto3Any(m); canExpand {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
fds := md.Fields()
|
||||
for i := 0; i < fds.Len(); {
|
||||
fd := fds.Get(i)
|
||||
if od := fd.ContainingOneof(); od != nil {
|
||||
fd = m.WhichOneof(od)
|
||||
i += od.Fields().Len()
|
||||
} else {
|
||||
i++
|
||||
}
|
||||
if fd == nil || !m.Has(fd) {
|
||||
continue
|
||||
}
|
||||
|
||||
switch {
|
||||
case fd.IsList():
|
||||
lv := m.Get(fd).List()
|
||||
for j := 0; j < lv.Len(); j++ {
|
||||
w.writeName(fd)
|
||||
v := lv.Get(j)
|
||||
if err := w.writeSingularValue(v, fd); err != nil {
|
||||
return err
|
||||
}
|
||||
w.WriteByte('\n')
|
||||
}
|
||||
case fd.IsMap():
|
||||
kfd := fd.MapKey()
|
||||
vfd := fd.MapValue()
|
||||
mv := m.Get(fd).Map()
|
||||
|
||||
type entry struct{ key, val protoreflect.Value }
|
||||
var entries []entry
|
||||
mv.Range(func(k protoreflect.MapKey, v protoreflect.Value) bool {
|
||||
entries = append(entries, entry{k.Value(), v})
|
||||
return true
|
||||
})
|
||||
sort.Slice(entries, func(i, j int) bool {
|
||||
switch kfd.Kind() {
|
||||
case protoreflect.BoolKind:
|
||||
return !entries[i].key.Bool() && entries[j].key.Bool()
|
||||
case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind, protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
|
||||
return entries[i].key.Int() < entries[j].key.Int()
|
||||
case protoreflect.Uint32Kind, protoreflect.Fixed32Kind, protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
|
||||
return entries[i].key.Uint() < entries[j].key.Uint()
|
||||
case protoreflect.StringKind:
|
||||
return entries[i].key.String() < entries[j].key.String()
|
||||
default:
|
||||
panic("invalid kind")
|
||||
}
|
||||
})
|
||||
for _, entry := range entries {
|
||||
w.writeName(fd)
|
||||
w.WriteByte('<')
|
||||
if !w.compact {
|
||||
w.WriteByte('\n')
|
||||
}
|
||||
w.indent++
|
||||
w.writeName(kfd)
|
||||
if err := w.writeSingularValue(entry.key, kfd); err != nil {
|
||||
return err
|
||||
}
|
||||
w.WriteByte('\n')
|
||||
w.writeName(vfd)
|
||||
if err := w.writeSingularValue(entry.val, vfd); err != nil {
|
||||
return err
|
||||
}
|
||||
w.WriteByte('\n')
|
||||
w.indent--
|
||||
w.WriteByte('>')
|
||||
w.WriteByte('\n')
|
||||
}
|
||||
default:
|
||||
w.writeName(fd)
|
||||
if err := w.writeSingularValue(m.Get(fd), fd); err != nil {
|
||||
return err
|
||||
}
|
||||
w.WriteByte('\n')
|
||||
}
|
||||
}
|
||||
|
||||
if b := m.GetUnknown(); len(b) > 0 {
|
||||
w.writeUnknownFields(b)
|
||||
}
|
||||
return w.writeExtensions(m)
|
||||
}
|
||||
|
||||
func (w *textWriter) writeSingularValue(v protoreflect.Value, fd protoreflect.FieldDescriptor) error {
|
||||
switch fd.Kind() {
|
||||
case protoreflect.FloatKind, protoreflect.DoubleKind:
|
||||
switch vf := v.Float(); {
|
||||
case math.IsInf(vf, +1):
|
||||
w.Write(posInf)
|
||||
case math.IsInf(vf, -1):
|
||||
w.Write(negInf)
|
||||
case math.IsNaN(vf):
|
||||
w.Write(nan)
|
||||
default:
|
||||
fmt.Fprint(w, v.Interface())
|
||||
}
|
||||
case protoreflect.StringKind:
|
||||
// NOTE: This does not validate UTF-8 for historical reasons.
|
||||
w.writeQuotedString(string(v.String()))
|
||||
case protoreflect.BytesKind:
|
||||
w.writeQuotedString(string(v.Bytes()))
|
||||
case protoreflect.MessageKind, protoreflect.GroupKind:
|
||||
var bra, ket byte = '<', '>'
|
||||
if fd.Kind() == protoreflect.GroupKind {
|
||||
bra, ket = '{', '}'
|
||||
}
|
||||
w.WriteByte(bra)
|
||||
if !w.compact {
|
||||
w.WriteByte('\n')
|
||||
}
|
||||
w.indent++
|
||||
m := v.Message()
|
||||
if m2, ok := m.Interface().(encoding.TextMarshaler); ok {
|
||||
b, err := m2.MarshalText()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
w.Write(b)
|
||||
} else {
|
||||
w.writeMessage(m)
|
||||
}
|
||||
w.indent--
|
||||
w.WriteByte(ket)
|
||||
case protoreflect.EnumKind:
|
||||
if ev := fd.Enum().Values().ByNumber(v.Enum()); ev != nil {
|
||||
fmt.Fprint(w, ev.Name())
|
||||
} else {
|
||||
fmt.Fprint(w, v.Enum())
|
||||
}
|
||||
default:
|
||||
fmt.Fprint(w, v.Interface())
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// writeQuotedString writes a quoted string in the protocol buffer text format.
|
||||
func (w *textWriter) writeQuotedString(s string) {
|
||||
w.WriteByte('"')
|
||||
for i := 0; i < len(s); i++ {
|
||||
switch c := s[i]; c {
|
||||
case '\n':
|
||||
w.buf = append(w.buf, `\n`...)
|
||||
case '\r':
|
||||
w.buf = append(w.buf, `\r`...)
|
||||
case '\t':
|
||||
w.buf = append(w.buf, `\t`...)
|
||||
case '"':
|
||||
w.buf = append(w.buf, `\"`...)
|
||||
case '\\':
|
||||
w.buf = append(w.buf, `\\`...)
|
||||
default:
|
||||
if isPrint := c >= 0x20 && c < 0x7f; isPrint {
|
||||
w.buf = append(w.buf, c)
|
||||
} else {
|
||||
w.buf = append(w.buf, fmt.Sprintf(`\%03o`, c)...)
|
||||
}
|
||||
}
|
||||
}
|
||||
w.WriteByte('"')
|
||||
}
|
||||
|
||||
func (w *textWriter) writeUnknownFields(b []byte) {
|
||||
if !w.compact {
|
||||
fmt.Fprintf(w, "/* %d unknown bytes */\n", len(b))
|
||||
}
|
||||
|
||||
for len(b) > 0 {
|
||||
num, wtyp, n := protowire.ConsumeTag(b)
|
||||
if n < 0 {
|
||||
return
|
||||
}
|
||||
b = b[n:]
|
||||
|
||||
if wtyp == protowire.EndGroupType {
|
||||
w.indent--
|
||||
w.Write(endBraceNewline)
|
||||
continue
|
||||
}
|
||||
fmt.Fprint(w, num)
|
||||
if wtyp != protowire.StartGroupType {
|
||||
w.WriteByte(':')
|
||||
}
|
||||
if !w.compact || wtyp == protowire.StartGroupType {
|
||||
w.WriteByte(' ')
|
||||
}
|
||||
switch wtyp {
|
||||
case protowire.VarintType:
|
||||
v, n := protowire.ConsumeVarint(b)
|
||||
if n < 0 {
|
||||
return
|
||||
}
|
||||
b = b[n:]
|
||||
fmt.Fprint(w, v)
|
||||
case protowire.Fixed32Type:
|
||||
v, n := protowire.ConsumeFixed32(b)
|
||||
if n < 0 {
|
||||
return
|
||||
}
|
||||
b = b[n:]
|
||||
fmt.Fprint(w, v)
|
||||
case protowire.Fixed64Type:
|
||||
v, n := protowire.ConsumeFixed64(b)
|
||||
if n < 0 {
|
||||
return
|
||||
}
|
||||
b = b[n:]
|
||||
fmt.Fprint(w, v)
|
||||
case protowire.BytesType:
|
||||
v, n := protowire.ConsumeBytes(b)
|
||||
if n < 0 {
|
||||
return
|
||||
}
|
||||
b = b[n:]
|
||||
fmt.Fprintf(w, "%q", v)
|
||||
case protowire.StartGroupType:
|
||||
w.WriteByte('{')
|
||||
w.indent++
|
||||
default:
|
||||
fmt.Fprintf(w, "/* unknown wire type %d */", wtyp)
|
||||
}
|
||||
w.WriteByte('\n')
|
||||
}
|
||||
}
|
||||
|
||||
// writeExtensions writes all the extensions in m.
|
||||
func (w *textWriter) writeExtensions(m protoreflect.Message) error {
|
||||
md := m.Descriptor()
|
||||
if md.ExtensionRanges().Len() == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
type ext struct {
|
||||
desc protoreflect.FieldDescriptor
|
||||
val protoreflect.Value
|
||||
}
|
||||
var exts []ext
|
||||
m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
|
||||
if fd.IsExtension() {
|
||||
exts = append(exts, ext{fd, v})
|
||||
}
|
||||
return true
|
||||
})
|
||||
sort.Slice(exts, func(i, j int) bool {
|
||||
return exts[i].desc.Number() < exts[j].desc.Number()
|
||||
})
|
||||
|
||||
for _, ext := range exts {
|
||||
// For message set, use the name of the message as the extension name.
|
||||
name := string(ext.desc.FullName())
|
||||
if isMessageSet(ext.desc.ContainingMessage()) {
|
||||
name = strings.TrimSuffix(name, ".message_set_extension")
|
||||
}
|
||||
|
||||
if !ext.desc.IsList() {
|
||||
if err := w.writeSingularExtension(name, ext.val, ext.desc); err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
lv := ext.val.List()
|
||||
for i := 0; i < lv.Len(); i++ {
|
||||
if err := w.writeSingularExtension(name, lv.Get(i), ext.desc); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (w *textWriter) writeSingularExtension(name string, v protoreflect.Value, fd protoreflect.FieldDescriptor) error {
|
||||
fmt.Fprintf(w, "[%s]:", name)
|
||||
if !w.compact {
|
||||
w.WriteByte(' ')
|
||||
}
|
||||
if err := w.writeSingularValue(v, fd); err != nil {
|
||||
return err
|
||||
}
|
||||
w.WriteByte('\n')
|
||||
return nil
|
||||
}
|
||||
|
||||
func (w *textWriter) writeIndent() {
|
||||
if !w.complete {
|
||||
return
|
||||
}
|
||||
for i := 0; i < w.indent*2; i++ {
|
||||
w.buf = append(w.buf, ' ')
|
||||
}
|
||||
w.complete = false
|
||||
}
|
78
vendor/github.com/golang/protobuf/proto/wire.go
generated
vendored
Normal file
78
vendor/github.com/golang/protobuf/proto/wire.go
generated
vendored
Normal file
@ -0,0 +1,78 @@
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
import (
|
||||
protoV2 "google.golang.org/protobuf/proto"
|
||||
"google.golang.org/protobuf/runtime/protoiface"
|
||||
)
|
||||
|
||||
// Size returns the size in bytes of the wire-format encoding of m.
|
||||
func Size(m Message) int {
|
||||
if m == nil {
|
||||
return 0
|
||||
}
|
||||
mi := MessageV2(m)
|
||||
return protoV2.Size(mi)
|
||||
}
|
||||
|
||||
// Marshal returns the wire-format encoding of m.
|
||||
func Marshal(m Message) ([]byte, error) {
|
||||
b, err := marshalAppend(nil, m, false)
|
||||
if b == nil {
|
||||
b = zeroBytes
|
||||
}
|
||||
return b, err
|
||||
}
|
||||
|
||||
var zeroBytes = make([]byte, 0, 0)
|
||||
|
||||
func marshalAppend(buf []byte, m Message, deterministic bool) ([]byte, error) {
|
||||
if m == nil {
|
||||
return nil, ErrNil
|
||||
}
|
||||
mi := MessageV2(m)
|
||||
nbuf, err := protoV2.MarshalOptions{
|
||||
Deterministic: deterministic,
|
||||
AllowPartial: true,
|
||||
}.MarshalAppend(buf, mi)
|
||||
if err != nil {
|
||||
return buf, err
|
||||
}
|
||||
if len(buf) == len(nbuf) {
|
||||
if !mi.ProtoReflect().IsValid() {
|
||||
return buf, ErrNil
|
||||
}
|
||||
}
|
||||
return nbuf, checkRequiredNotSet(mi)
|
||||
}
|
||||
|
||||
// Unmarshal parses a wire-format message in b and places the decoded results in m.
|
||||
//
|
||||
// Unmarshal resets m before starting to unmarshal, so any existing data in m is always
|
||||
// removed. Use UnmarshalMerge to preserve and append to existing data.
|
||||
func Unmarshal(b []byte, m Message) error {
|
||||
m.Reset()
|
||||
return UnmarshalMerge(b, m)
|
||||
}
|
||||
|
||||
// UnmarshalMerge parses a wire-format message in b and places the decoded results in m.
|
||||
func UnmarshalMerge(b []byte, m Message) error {
|
||||
mi := MessageV2(m)
|
||||
out, err := protoV2.UnmarshalOptions{
|
||||
AllowPartial: true,
|
||||
Merge: true,
|
||||
}.UnmarshalState(protoiface.UnmarshalInput{
|
||||
Buf: b,
|
||||
Message: mi.ProtoReflect(),
|
||||
})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if out.Flags&protoiface.UnmarshalInitialized > 0 {
|
||||
return nil
|
||||
}
|
||||
return checkRequiredNotSet(mi)
|
||||
}
|
34
vendor/github.com/golang/protobuf/proto/wrappers.go
generated
vendored
Normal file
34
vendor/github.com/golang/protobuf/proto/wrappers.go
generated
vendored
Normal file
@ -0,0 +1,34 @@
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package proto
|
||||
|
||||
// Bool stores v in a new bool value and returns a pointer to it.
|
||||
func Bool(v bool) *bool { return &v }
|
||||
|
||||
// Int stores v in a new int32 value and returns a pointer to it.
|
||||
//
|
||||
// Deprecated: Use Int32 instead.
|
||||
func Int(v int) *int32 { return Int32(int32(v)) }
|
||||
|
||||
// Int32 stores v in a new int32 value and returns a pointer to it.
|
||||
func Int32(v int32) *int32 { return &v }
|
||||
|
||||
// Int64 stores v in a new int64 value and returns a pointer to it.
|
||||
func Int64(v int64) *int64 { return &v }
|
||||
|
||||
// Uint32 stores v in a new uint32 value and returns a pointer to it.
|
||||
func Uint32(v uint32) *uint32 { return &v }
|
||||
|
||||
// Uint64 stores v in a new uint64 value and returns a pointer to it.
|
||||
func Uint64(v uint64) *uint64 { return &v }
|
||||
|
||||
// Float32 stores v in a new float32 value and returns a pointer to it.
|
||||
func Float32(v float32) *float32 { return &v }
|
||||
|
||||
// Float64 stores v in a new float64 value and returns a pointer to it.
|
||||
func Float64(v float64) *float64 { return &v }
|
||||
|
||||
// String stores v in a new string value and returns a pointer to it.
|
||||
func String(v string) *string { return &v }
|
165
vendor/github.com/golang/protobuf/ptypes/any.go
generated
vendored
Normal file
165
vendor/github.com/golang/protobuf/ptypes/any.go
generated
vendored
Normal file
@ -0,0 +1,165 @@
|
||||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package ptypes
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"github.com/golang/protobuf/proto"
|
||||
"google.golang.org/protobuf/reflect/protoreflect"
|
||||
"google.golang.org/protobuf/reflect/protoregistry"
|
||||
|
||||
anypb "github.com/golang/protobuf/ptypes/any"
|
||||
)
|
||||
|
||||
const urlPrefix = "type.googleapis.com/"
|
||||
|
||||
// AnyMessageName returns the message name contained in an anypb.Any message.
|
||||
// Most type assertions should use the Is function instead.
|
||||
func AnyMessageName(any *anypb.Any) (string, error) {
|
||||
name, err := anyMessageName(any)
|
||||
return string(name), err
|
||||
}
|
||||
func anyMessageName(any *anypb.Any) (protoreflect.FullName, error) {
|
||||
if any == nil {
|
||||
return "", fmt.Errorf("message is nil")
|
||||
}
|
||||
name := protoreflect.FullName(any.TypeUrl)
|
||||
if i := strings.LastIndex(any.TypeUrl, "/"); i >= 0 {
|
||||
name = name[i+len("/"):]
|
||||
}
|
||||
if !name.IsValid() {
|
||||
return "", fmt.Errorf("message type url %q is invalid", any.TypeUrl)
|
||||
}
|
||||
return name, nil
|
||||
}
|
||||
|
||||
// MarshalAny marshals the given message m into an anypb.Any message.
|
||||
func MarshalAny(m proto.Message) (*anypb.Any, error) {
|
||||
switch dm := m.(type) {
|
||||
case DynamicAny:
|
||||
m = dm.Message
|
||||
case *DynamicAny:
|
||||
if dm == nil {
|
||||
return nil, proto.ErrNil
|
||||
}
|
||||
m = dm.Message
|
||||
}
|
||||
b, err := proto.Marshal(m)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &anypb.Any{TypeUrl: urlPrefix + proto.MessageName(m), Value: b}, nil
|
||||
}
|
||||
|
||||
// Empty returns a new message of the type specified in an anypb.Any message.
|
||||
// It returns protoregistry.NotFound if the corresponding message type could not
|
||||
// be resolved in the global registry.
|
||||
func Empty(any *anypb.Any) (proto.Message, error) {
|
||||
name, err := anyMessageName(any)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
mt, err := protoregistry.GlobalTypes.FindMessageByName(name)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return proto.MessageV1(mt.New().Interface()), nil
|
||||
}
|
||||
|
||||
// UnmarshalAny unmarshals the encoded value contained in the anypb.Any message
|
||||
// into the provided message m. It returns an error if the target message
|
||||
// does not match the type in the Any message or if an unmarshal error occurs.
|
||||
//
|
||||
// The target message m may be a *DynamicAny message. If the underlying message
|
||||
// type could not be resolved, then this returns protoregistry.NotFound.
|
||||
func UnmarshalAny(any *anypb.Any, m proto.Message) error {
|
||||
if dm, ok := m.(*DynamicAny); ok {
|
||||
if dm.Message == nil {
|
||||
var err error
|
||||
dm.Message, err = Empty(any)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
m = dm.Message
|
||||
}
|
||||
|
||||
anyName, err := AnyMessageName(any)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
msgName := proto.MessageName(m)
|
||||
if anyName != msgName {
|
||||
return fmt.Errorf("mismatched message type: got %q want %q", anyName, msgName)
|
||||
}
|
||||
return proto.Unmarshal(any.Value, m)
|
||||
}
|
||||
|
||||
// Is reports whether the Any message contains a message of the specified type.
|
||||
func Is(any *anypb.Any, m proto.Message) bool {
|
||||
if any == nil || m == nil {
|
||||
return false
|
||||
}
|
||||
name := proto.MessageName(m)
|
||||
if !strings.HasSuffix(any.TypeUrl, name) {
|
||||
return false
|
||||
}
|
||||
return len(any.TypeUrl) == len(name) || any.TypeUrl[len(any.TypeUrl)-len(name)-1] == '/'
|
||||
}
|
||||
|
||||
// DynamicAny is a value that can be passed to UnmarshalAny to automatically
|
||||
// allocate a proto.Message for the type specified in an anypb.Any message.
|
||||
// The allocated message is stored in the embedded proto.Message.
|
||||
//
|
||||
// Example:
|
||||
// var x ptypes.DynamicAny
|
||||
// if err := ptypes.UnmarshalAny(a, &x); err != nil { ... }
|
||||
// fmt.Printf("unmarshaled message: %v", x.Message)
|
||||
type DynamicAny struct{ proto.Message }
|
||||
|
||||
func (m DynamicAny) String() string {
|
||||
if m.Message == nil {
|
||||
return "<nil>"
|
||||
}
|
||||
return m.Message.String()
|
||||
}
|
||||
func (m DynamicAny) Reset() {
|
||||
if m.Message == nil {
|
||||
return
|
||||
}
|
||||
m.Message.Reset()
|
||||
}
|
||||
func (m DynamicAny) ProtoMessage() {
|
||||
return
|
||||
}
|
||||
func (m DynamicAny) ProtoReflect() protoreflect.Message {
|
||||
if m.Message == nil {
|
||||
return nil
|
||||
}
|
||||
return dynamicAny{proto.MessageReflect(m.Message)}
|
||||
}
|
||||
|
||||
type dynamicAny struct{ protoreflect.Message }
|
||||
|
||||
func (m dynamicAny) Type() protoreflect.MessageType {
|
||||
return dynamicAnyType{m.Message.Type()}
|
||||
}
|
||||
func (m dynamicAny) New() protoreflect.Message {
|
||||
return dynamicAnyType{m.Message.Type()}.New()
|
||||
}
|
||||
func (m dynamicAny) Interface() protoreflect.ProtoMessage {
|
||||
return DynamicAny{proto.MessageV1(m.Message.Interface())}
|
||||
}
|
||||
|
||||
type dynamicAnyType struct{ protoreflect.MessageType }
|
||||
|
||||
func (t dynamicAnyType) New() protoreflect.Message {
|
||||
return dynamicAny{t.MessageType.New()}
|
||||
}
|
||||
func (t dynamicAnyType) Zero() protoreflect.Message {
|
||||
return dynamicAny{t.MessageType.Zero()}
|
||||
}
|
62
vendor/github.com/golang/protobuf/ptypes/any/any.pb.go
generated
vendored
Normal file
62
vendor/github.com/golang/protobuf/ptypes/any/any.pb.go
generated
vendored
Normal file
@ -0,0 +1,62 @@
|
||||
// Code generated by protoc-gen-go. DO NOT EDIT.
|
||||
// source: github.com/golang/protobuf/ptypes/any/any.proto
|
||||
|
||||
package any
|
||||
|
||||
import (
|
||||
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
|
||||
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
|
||||
anypb "google.golang.org/protobuf/types/known/anypb"
|
||||
reflect "reflect"
|
||||
)
|
||||
|
||||
// Symbols defined in public import of google/protobuf/any.proto.
|
||||
|
||||
type Any = anypb.Any
|
||||
|
||||
var File_github_com_golang_protobuf_ptypes_any_any_proto protoreflect.FileDescriptor
|
||||
|
||||
var file_github_com_golang_protobuf_ptypes_any_any_proto_rawDesc = []byte{
|
||||
0x0a, 0x2f, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
|
||||
0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79,
|
||||
0x70, 0x65, 0x73, 0x2f, 0x61, 0x6e, 0x79, 0x2f, 0x61, 0x6e, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74,
|
||||
0x6f, 0x1a, 0x19, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62,
|
||||
0x75, 0x66, 0x2f, 0x61, 0x6e, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x42, 0x2b, 0x5a, 0x29,
|
||||
0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c, 0x61, 0x6e,
|
||||
0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79, 0x70, 0x65,
|
||||
0x73, 0x2f, 0x61, 0x6e, 0x79, 0x3b, 0x61, 0x6e, 0x79, 0x50, 0x00, 0x62, 0x06, 0x70, 0x72, 0x6f,
|
||||
0x74, 0x6f, 0x33,
|
||||
}
|
||||
|
||||
var file_github_com_golang_protobuf_ptypes_any_any_proto_goTypes = []interface{}{}
|
||||
var file_github_com_golang_protobuf_ptypes_any_any_proto_depIdxs = []int32{
|
||||
0, // [0:0] is the sub-list for method output_type
|
||||
0, // [0:0] is the sub-list for method input_type
|
||||
0, // [0:0] is the sub-list for extension type_name
|
||||
0, // [0:0] is the sub-list for extension extendee
|
||||
0, // [0:0] is the sub-list for field type_name
|
||||
}
|
||||
|
||||
func init() { file_github_com_golang_protobuf_ptypes_any_any_proto_init() }
|
||||
func file_github_com_golang_protobuf_ptypes_any_any_proto_init() {
|
||||
if File_github_com_golang_protobuf_ptypes_any_any_proto != nil {
|
||||
return
|
||||
}
|
||||
type x struct{}
|
||||
out := protoimpl.TypeBuilder{
|
||||
File: protoimpl.DescBuilder{
|
||||
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
|
||||
RawDescriptor: file_github_com_golang_protobuf_ptypes_any_any_proto_rawDesc,
|
||||
NumEnums: 0,
|
||||
NumMessages: 0,
|
||||
NumExtensions: 0,
|
||||
NumServices: 0,
|
||||
},
|
||||
GoTypes: file_github_com_golang_protobuf_ptypes_any_any_proto_goTypes,
|
||||
DependencyIndexes: file_github_com_golang_protobuf_ptypes_any_any_proto_depIdxs,
|
||||
}.Build()
|
||||
File_github_com_golang_protobuf_ptypes_any_any_proto = out.File
|
||||
file_github_com_golang_protobuf_ptypes_any_any_proto_rawDesc = nil
|
||||
file_github_com_golang_protobuf_ptypes_any_any_proto_goTypes = nil
|
||||
file_github_com_golang_protobuf_ptypes_any_any_proto_depIdxs = nil
|
||||
}
|
6
vendor/github.com/golang/protobuf/ptypes/doc.go
generated
vendored
Normal file
6
vendor/github.com/golang/protobuf/ptypes/doc.go
generated
vendored
Normal file
@ -0,0 +1,6 @@
|
||||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package ptypes provides functionality for interacting with well-known types.
|
||||
package ptypes
|
72
vendor/github.com/golang/protobuf/ptypes/duration.go
generated
vendored
Normal file
72
vendor/github.com/golang/protobuf/ptypes/duration.go
generated
vendored
Normal file
@ -0,0 +1,72 @@
|
||||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package ptypes
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"time"
|
||||
|
||||
durationpb "github.com/golang/protobuf/ptypes/duration"
|
||||
)
|
||||
|
||||
// Range of google.protobuf.Duration as specified in duration.proto.
|
||||
// This is about 10,000 years in seconds.
|
||||
const (
|
||||
maxSeconds = int64(10000 * 365.25 * 24 * 60 * 60)
|
||||
minSeconds = -maxSeconds
|
||||
)
|
||||
|
||||
// Duration converts a durationpb.Duration to a time.Duration.
|
||||
// Duration returns an error if dur is invalid or overflows a time.Duration.
|
||||
func Duration(dur *durationpb.Duration) (time.Duration, error) {
|
||||
if err := validateDuration(dur); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
d := time.Duration(dur.Seconds) * time.Second
|
||||
if int64(d/time.Second) != dur.Seconds {
|
||||
return 0, fmt.Errorf("duration: %v is out of range for time.Duration", dur)
|
||||
}
|
||||
if dur.Nanos != 0 {
|
||||
d += time.Duration(dur.Nanos) * time.Nanosecond
|
||||
if (d < 0) != (dur.Nanos < 0) {
|
||||
return 0, fmt.Errorf("duration: %v is out of range for time.Duration", dur)
|
||||
}
|
||||
}
|
||||
return d, nil
|
||||
}
|
||||
|
||||
// DurationProto converts a time.Duration to a durationpb.Duration.
|
||||
func DurationProto(d time.Duration) *durationpb.Duration {
|
||||
nanos := d.Nanoseconds()
|
||||
secs := nanos / 1e9
|
||||
nanos -= secs * 1e9
|
||||
return &durationpb.Duration{
|
||||
Seconds: int64(secs),
|
||||
Nanos: int32(nanos),
|
||||
}
|
||||
}
|
||||
|
||||
// validateDuration determines whether the durationpb.Duration is valid
|
||||
// according to the definition in google/protobuf/duration.proto.
|
||||
// A valid durpb.Duration may still be too large to fit into a time.Duration
|
||||
// Note that the range of durationpb.Duration is about 10,000 years,
|
||||
// while the range of time.Duration is about 290 years.
|
||||
func validateDuration(dur *durationpb.Duration) error {
|
||||
if dur == nil {
|
||||
return errors.New("duration: nil Duration")
|
||||
}
|
||||
if dur.Seconds < minSeconds || dur.Seconds > maxSeconds {
|
||||
return fmt.Errorf("duration: %v: seconds out of range", dur)
|
||||
}
|
||||
if dur.Nanos <= -1e9 || dur.Nanos >= 1e9 {
|
||||
return fmt.Errorf("duration: %v: nanos out of range", dur)
|
||||
}
|
||||
// Seconds and Nanos must have the same sign, unless d.Nanos is zero.
|
||||
if (dur.Seconds < 0 && dur.Nanos > 0) || (dur.Seconds > 0 && dur.Nanos < 0) {
|
||||
return fmt.Errorf("duration: %v: seconds and nanos have different signs", dur)
|
||||
}
|
||||
return nil
|
||||
}
|
63
vendor/github.com/golang/protobuf/ptypes/duration/duration.pb.go
generated
vendored
Normal file
63
vendor/github.com/golang/protobuf/ptypes/duration/duration.pb.go
generated
vendored
Normal file
@ -0,0 +1,63 @@
|
||||
// Code generated by protoc-gen-go. DO NOT EDIT.
|
||||
// source: github.com/golang/protobuf/ptypes/duration/duration.proto
|
||||
|
||||
package duration
|
||||
|
||||
import (
|
||||
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
|
||||
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
|
||||
durationpb "google.golang.org/protobuf/types/known/durationpb"
|
||||
reflect "reflect"
|
||||
)
|
||||
|
||||
// Symbols defined in public import of google/protobuf/duration.proto.
|
||||
|
||||
type Duration = durationpb.Duration
|
||||
|
||||
var File_github_com_golang_protobuf_ptypes_duration_duration_proto protoreflect.FileDescriptor
|
||||
|
||||
var file_github_com_golang_protobuf_ptypes_duration_duration_proto_rawDesc = []byte{
|
||||
0x0a, 0x39, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
|
||||
0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79,
|
||||
0x70, 0x65, 0x73, 0x2f, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x64, 0x75, 0x72,
|
||||
0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x1e, 0x67, 0x6f, 0x6f,
|
||||
0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x75, 0x72,
|
||||
0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x42, 0x35, 0x5a, 0x33, 0x67,
|
||||
0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67,
|
||||
0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79, 0x70, 0x65, 0x73,
|
||||
0x2f, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x3b, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69,
|
||||
0x6f, 0x6e, 0x50, 0x00, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
|
||||
}
|
||||
|
||||
var file_github_com_golang_protobuf_ptypes_duration_duration_proto_goTypes = []interface{}{}
|
||||
var file_github_com_golang_protobuf_ptypes_duration_duration_proto_depIdxs = []int32{
|
||||
0, // [0:0] is the sub-list for method output_type
|
||||
0, // [0:0] is the sub-list for method input_type
|
||||
0, // [0:0] is the sub-list for extension type_name
|
||||
0, // [0:0] is the sub-list for extension extendee
|
||||
0, // [0:0] is the sub-list for field type_name
|
||||
}
|
||||
|
||||
func init() { file_github_com_golang_protobuf_ptypes_duration_duration_proto_init() }
|
||||
func file_github_com_golang_protobuf_ptypes_duration_duration_proto_init() {
|
||||
if File_github_com_golang_protobuf_ptypes_duration_duration_proto != nil {
|
||||
return
|
||||
}
|
||||
type x struct{}
|
||||
out := protoimpl.TypeBuilder{
|
||||
File: protoimpl.DescBuilder{
|
||||
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
|
||||
RawDescriptor: file_github_com_golang_protobuf_ptypes_duration_duration_proto_rawDesc,
|
||||
NumEnums: 0,
|
||||
NumMessages: 0,
|
||||
NumExtensions: 0,
|
||||
NumServices: 0,
|
||||
},
|
||||
GoTypes: file_github_com_golang_protobuf_ptypes_duration_duration_proto_goTypes,
|
||||
DependencyIndexes: file_github_com_golang_protobuf_ptypes_duration_duration_proto_depIdxs,
|
||||
}.Build()
|
||||
File_github_com_golang_protobuf_ptypes_duration_duration_proto = out.File
|
||||
file_github_com_golang_protobuf_ptypes_duration_duration_proto_rawDesc = nil
|
||||
file_github_com_golang_protobuf_ptypes_duration_duration_proto_goTypes = nil
|
||||
file_github_com_golang_protobuf_ptypes_duration_duration_proto_depIdxs = nil
|
||||
}
|
103
vendor/github.com/golang/protobuf/ptypes/timestamp.go
generated
vendored
Normal file
103
vendor/github.com/golang/protobuf/ptypes/timestamp.go
generated
vendored
Normal file
@ -0,0 +1,103 @@
|
||||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package ptypes
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"time"
|
||||
|
||||
timestamppb "github.com/golang/protobuf/ptypes/timestamp"
|
||||
)
|
||||
|
||||
// Range of google.protobuf.Duration as specified in timestamp.proto.
|
||||
const (
|
||||
// Seconds field of the earliest valid Timestamp.
|
||||
// This is time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
|
||||
minValidSeconds = -62135596800
|
||||
// Seconds field just after the latest valid Timestamp.
|
||||
// This is time.Date(10000, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
|
||||
maxValidSeconds = 253402300800
|
||||
)
|
||||
|
||||
// Timestamp converts a timestamppb.Timestamp to a time.Time.
|
||||
// It returns an error if the argument is invalid.
|
||||
//
|
||||
// Unlike most Go functions, if Timestamp returns an error, the first return
|
||||
// value is not the zero time.Time. Instead, it is the value obtained from the
|
||||
// time.Unix function when passed the contents of the Timestamp, in the UTC
|
||||
// locale. This may or may not be a meaningful time; many invalid Timestamps
|
||||
// do map to valid time.Times.
|
||||
//
|
||||
// A nil Timestamp returns an error. The first return value in that case is
|
||||
// undefined.
|
||||
func Timestamp(ts *timestamppb.Timestamp) (time.Time, error) {
|
||||
// Don't return the zero value on error, because corresponds to a valid
|
||||
// timestamp. Instead return whatever time.Unix gives us.
|
||||
var t time.Time
|
||||
if ts == nil {
|
||||
t = time.Unix(0, 0).UTC() // treat nil like the empty Timestamp
|
||||
} else {
|
||||
t = time.Unix(ts.Seconds, int64(ts.Nanos)).UTC()
|
||||
}
|
||||
return t, validateTimestamp(ts)
|
||||
}
|
||||
|
||||
// TimestampNow returns a google.protobuf.Timestamp for the current time.
|
||||
func TimestampNow() *timestamppb.Timestamp {
|
||||
ts, err := TimestampProto(time.Now())
|
||||
if err != nil {
|
||||
panic("ptypes: time.Now() out of Timestamp range")
|
||||
}
|
||||
return ts
|
||||
}
|
||||
|
||||
// TimestampProto converts the time.Time to a google.protobuf.Timestamp proto.
|
||||
// It returns an error if the resulting Timestamp is invalid.
|
||||
func TimestampProto(t time.Time) (*timestamppb.Timestamp, error) {
|
||||
ts := ×tamppb.Timestamp{
|
||||
Seconds: t.Unix(),
|
||||
Nanos: int32(t.Nanosecond()),
|
||||
}
|
||||
if err := validateTimestamp(ts); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return ts, nil
|
||||
}
|
||||
|
||||
// TimestampString returns the RFC 3339 string for valid Timestamps.
|
||||
// For invalid Timestamps, it returns an error message in parentheses.
|
||||
func TimestampString(ts *timestamppb.Timestamp) string {
|
||||
t, err := Timestamp(ts)
|
||||
if err != nil {
|
||||
return fmt.Sprintf("(%v)", err)
|
||||
}
|
||||
return t.Format(time.RFC3339Nano)
|
||||
}
|
||||
|
||||
// validateTimestamp determines whether a Timestamp is valid.
|
||||
// A valid timestamp represents a time in the range [0001-01-01, 10000-01-01)
|
||||
// and has a Nanos field in the range [0, 1e9).
|
||||
//
|
||||
// If the Timestamp is valid, validateTimestamp returns nil.
|
||||
// Otherwise, it returns an error that describes the problem.
|
||||
//
|
||||
// Every valid Timestamp can be represented by a time.Time,
|
||||
// but the converse is not true.
|
||||
func validateTimestamp(ts *timestamppb.Timestamp) error {
|
||||
if ts == nil {
|
||||
return errors.New("timestamp: nil Timestamp")
|
||||
}
|
||||
if ts.Seconds < minValidSeconds {
|
||||
return fmt.Errorf("timestamp: %v before 0001-01-01", ts)
|
||||
}
|
||||
if ts.Seconds >= maxValidSeconds {
|
||||
return fmt.Errorf("timestamp: %v after 10000-01-01", ts)
|
||||
}
|
||||
if ts.Nanos < 0 || ts.Nanos >= 1e9 {
|
||||
return fmt.Errorf("timestamp: %v: nanos not in range [0, 1e9)", ts)
|
||||
}
|
||||
return nil
|
||||
}
|
64
vendor/github.com/golang/protobuf/ptypes/timestamp/timestamp.pb.go
generated
vendored
Normal file
64
vendor/github.com/golang/protobuf/ptypes/timestamp/timestamp.pb.go
generated
vendored
Normal file
@ -0,0 +1,64 @@
|
||||
// Code generated by protoc-gen-go. DO NOT EDIT.
|
||||
// source: github.com/golang/protobuf/ptypes/timestamp/timestamp.proto
|
||||
|
||||
package timestamp
|
||||
|
||||
import (
|
||||
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
|
||||
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
|
||||
timestamppb "google.golang.org/protobuf/types/known/timestamppb"
|
||||
reflect "reflect"
|
||||
)
|
||||
|
||||
// Symbols defined in public import of google/protobuf/timestamp.proto.
|
||||
|
||||
type Timestamp = timestamppb.Timestamp
|
||||
|
||||
var File_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto protoreflect.FileDescriptor
|
||||
|
||||
var file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_rawDesc = []byte{
|
||||
0x0a, 0x3b, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
|
||||
0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79,
|
||||
0x70, 0x65, 0x73, 0x2f, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x2f, 0x74, 0x69,
|
||||
0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x1f, 0x67,
|
||||
0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x74,
|
||||
0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x42, 0x37,
|
||||
0x5a, 0x35, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
|
||||
0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79,
|
||||
0x70, 0x65, 0x73, 0x2f, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x3b, 0x74, 0x69,
|
||||
0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x50, 0x00, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
|
||||
0x33,
|
||||
}
|
||||
|
||||
var file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_goTypes = []interface{}{}
|
||||
var file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_depIdxs = []int32{
|
||||
0, // [0:0] is the sub-list for method output_type
|
||||
0, // [0:0] is the sub-list for method input_type
|
||||
0, // [0:0] is the sub-list for extension type_name
|
||||
0, // [0:0] is the sub-list for extension extendee
|
||||
0, // [0:0] is the sub-list for field type_name
|
||||
}
|
||||
|
||||
func init() { file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_init() }
|
||||
func file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_init() {
|
||||
if File_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto != nil {
|
||||
return
|
||||
}
|
||||
type x struct{}
|
||||
out := protoimpl.TypeBuilder{
|
||||
File: protoimpl.DescBuilder{
|
||||
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
|
||||
RawDescriptor: file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_rawDesc,
|
||||
NumEnums: 0,
|
||||
NumMessages: 0,
|
||||
NumExtensions: 0,
|
||||
NumServices: 0,
|
||||
},
|
||||
GoTypes: file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_goTypes,
|
||||
DependencyIndexes: file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_depIdxs,
|
||||
}.Build()
|
||||
File_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto = out.File
|
||||
file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_rawDesc = nil
|
||||
file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_goTypes = nil
|
||||
file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_depIdxs = nil
|
||||
}
|
201
vendor/github.com/matttproud/golang_protobuf_extensions/LICENSE
generated
vendored
Normal file
201
vendor/github.com/matttproud/golang_protobuf_extensions/LICENSE
generated
vendored
Normal file
@ -0,0 +1,201 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
copyright notice that is included in or attached to the work
|
||||
(an example is provided in the Appendix below).
|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
||||
form, that is based on (or derived from) the Work and for which the
|
||||
editorial revisions, annotations, elaborations, or other modifications
|
||||
represent, as a whole, an original work of authorship. For the purposes
|
||||
of this License, Derivative Works shall not include works that remain
|
||||
separable from, or merely link (or bind by name) to the interfaces of,
|
||||
the Work and Derivative Works thereof.
|
||||
|
||||
"Contribution" shall mean any work of authorship, including
|
||||
the original version of the Work and any modifications or additions
|
||||
to that Work or Derivative Works thereof, that is intentionally
|
||||
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||
or by an individual or Legal Entity authorized to submit on behalf of
|
||||
the copyright owner. For the purposes of this definition, "submitted"
|
||||
means any form of electronic, verbal, or written communication sent
|
||||
to the Licensor or its representatives, including but not limited to
|
||||
communication on electronic mailing lists, source code control systems,
|
||||
and issue tracking systems that are managed by, or on behalf of, the
|
||||
Licensor for the purpose of discussing and improving the Work, but
|
||||
excluding communication that is conspicuously marked or otherwise
|
||||
designated in writing by the copyright owner as "Not a Contribution."
|
||||
|
||||
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||
on behalf of whom a Contribution has been received by Licensor and
|
||||
subsequently incorporated within the Work.
|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
copyright license to reproduce, prepare Derivative Works of,
|
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publicly display, publicly perform, sublicense, and distribute the
|
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Work and such Derivative Works in Source or Object form.
|
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|
||||
3. Grant of Patent License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
(except as stated in this section) patent license to make, have made,
|
||||
use, offer to sell, sell, import, and otherwise transfer the Work,
|
||||
where such license applies only to those patent claims licensable
|
||||
by such Contributor that are necessarily infringed by their
|
||||
Contribution(s) alone or by combination of their Contribution(s)
|
||||
with the Work to which such Contribution(s) was submitted. If You
|
||||
institute patent litigation against any entity (including a
|
||||
cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||
or a Contribution incorporated within the Work constitutes direct
|
||||
or contributory patent infringement, then any patent licenses
|
||||
granted to You under this License for that Work shall terminate
|
||||
as of the date such litigation is filed.
|
||||
|
||||
4. Redistribution. You may reproduce and distribute copies of the
|
||||
Work or Derivative Works thereof in any medium, with or without
|
||||
modifications, and in Source or Object form, provided that You
|
||||
meet the following conditions:
|
||||
|
||||
(a) You must give any other recipients of the Work or
|
||||
Derivative Works a copy of this License; and
|
||||
|
||||
(b) You must cause any modified files to carry prominent notices
|
||||
stating that You changed the files; and
|
||||
|
||||
(c) You must retain, in the Source form of any Derivative Works
|
||||
that You distribute, all copyright, patent, trademark, and
|
||||
attribution notices from the Source form of the Work,
|
||||
excluding those notices that do not pertain to any part of
|
||||
the Derivative Works; and
|
||||
|
||||
(d) If the Work includes a "NOTICE" text file as part of its
|
||||
distribution, then any Derivative Works that You distribute must
|
||||
include a readable copy of the attribution notices contained
|
||||
within such NOTICE file, excluding those notices that do not
|
||||
pertain to any part of the Derivative Works, in at least one
|
||||
of the following places: within a NOTICE text file distributed
|
||||
as part of the Derivative Works; within the Source form or
|
||||
documentation, if provided along with the Derivative Works; or,
|
||||
within a display generated by the Derivative Works, if and
|
||||
wherever such third-party notices normally appear. The contents
|
||||
of the NOTICE file are for informational purposes only and
|
||||
do not modify the License. You may add Your own attribution
|
||||
notices within Derivative Works that You distribute, alongside
|
||||
or as an addendum to the NOTICE text from the Work, provided
|
||||
that such additional attribution notices cannot be construed
|
||||
as modifying the License.
|
||||
|
||||
You may add Your own copyright statement to Your modifications and
|
||||
may provide additional or different license terms and conditions
|
||||
for use, reproduction, or distribution of Your modifications, or
|
||||
for any such Derivative Works as a whole, provided Your use,
|
||||
reproduction, and distribution of the Work otherwise complies with
|
||||
the conditions stated in this License.
|
||||
|
||||
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
|
||||
this License, without any additional terms or conditions.
|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
||||
the terms of any separate license agreement you may have executed
|
||||
with Licensor regarding such Contributions.
|
||||
|
||||
6. Trademarks. This License does not grant permission to use the trade
|
||||
names, trademarks, service marks, or product names of the Licensor,
|
||||
except as required for reasonable and customary use in describing the
|
||||
origin of the Work and reproducing the content of the NOTICE file.
|
||||
|
||||
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||
agreed to in writing, Licensor provides the Work (and each
|
||||
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
implied, including, without limitation, any warranties or conditions
|
||||
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||
PARTICULAR PURPOSE. You are solely responsible for determining the
|
||||
appropriateness of using or redistributing the Work and assume any
|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
negligent acts) or agreed to in writing, shall any Contributor be
|
||||
liable to You for damages, including any direct, indirect, special,
|
||||
incidental, or consequential damages of any character arising as a
|
||||
result of this License or out of the use or inability to use the
|
||||
Work (including but not limited to damages for loss of goodwill,
|
||||
work stoppage, computer failure or malfunction, or any and all
|
||||
other commercial damages or losses), even if such Contributor
|
||||
has been advised of the possibility of such damages.
|
||||
|
||||
9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
||||
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||
or other liability obligations and/or rights consistent with this
|
||||
License. However, in accepting such obligations, You may act only
|
||||
on Your own behalf and on Your sole responsibility, not on behalf
|
||||
of any other Contributor, and only if You agree to indemnify,
|
||||
defend, and hold each Contributor harmless for any liability
|
||||
incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "{}"
|
||||
replaced with your own identifying information. (Don't include
|
||||
the brackets!) The text should be enclosed in the appropriate
|
||||
comment syntax for the file format. We also recommend that a
|
||||
file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright {yyyy} {name of copyright owner}
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
1
vendor/github.com/matttproud/golang_protobuf_extensions/NOTICE
generated
vendored
Normal file
1
vendor/github.com/matttproud/golang_protobuf_extensions/NOTICE
generated
vendored
Normal file
@ -0,0 +1 @@
|
||||
Copyright 2012 Matt T. Proud (matt.proud@gmail.com)
|
1
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/.gitignore
generated
vendored
Normal file
1
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/.gitignore
generated
vendored
Normal file
@ -0,0 +1 @@
|
||||
cover.dat
|
7
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/Makefile
generated
vendored
Normal file
7
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/Makefile
generated
vendored
Normal file
@ -0,0 +1,7 @@
|
||||
all:
|
||||
|
||||
cover:
|
||||
go test -cover -v -coverprofile=cover.dat ./...
|
||||
go tool cover -func cover.dat
|
||||
|
||||
.PHONY: cover
|
75
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/decode.go
generated
vendored
Normal file
75
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/decode.go
generated
vendored
Normal file
@ -0,0 +1,75 @@
|
||||
// Copyright 2013 Matt T. Proud
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package pbutil
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"io"
|
||||
|
||||
"github.com/golang/protobuf/proto"
|
||||
)
|
||||
|
||||
var errInvalidVarint = errors.New("invalid varint32 encountered")
|
||||
|
||||
// ReadDelimited decodes a message from the provided length-delimited stream,
|
||||
// where the length is encoded as 32-bit varint prefix to the message body.
|
||||
// It returns the total number of bytes read and any applicable error. This is
|
||||
// roughly equivalent to the companion Java API's
|
||||
// MessageLite#parseDelimitedFrom. As per the reader contract, this function
|
||||
// calls r.Read repeatedly as required until exactly one message including its
|
||||
// prefix is read and decoded (or an error has occurred). The function never
|
||||
// reads more bytes from the stream than required. The function never returns
|
||||
// an error if a message has been read and decoded correctly, even if the end
|
||||
// of the stream has been reached in doing so. In that case, any subsequent
|
||||
// calls return (0, io.EOF).
|
||||
func ReadDelimited(r io.Reader, m proto.Message) (n int, err error) {
|
||||
// Per AbstractParser#parsePartialDelimitedFrom with
|
||||
// CodedInputStream#readRawVarint32.
|
||||
var headerBuf [binary.MaxVarintLen32]byte
|
||||
var bytesRead, varIntBytes int
|
||||
var messageLength uint64
|
||||
for varIntBytes == 0 { // i.e. no varint has been decoded yet.
|
||||
if bytesRead >= len(headerBuf) {
|
||||
return bytesRead, errInvalidVarint
|
||||
}
|
||||
// We have to read byte by byte here to avoid reading more bytes
|
||||
// than required. Each read byte is appended to what we have
|
||||
// read before.
|
||||
newBytesRead, err := r.Read(headerBuf[bytesRead : bytesRead+1])
|
||||
if newBytesRead == 0 {
|
||||
if err != nil {
|
||||
return bytesRead, err
|
||||
}
|
||||
// A Reader should not return (0, nil), but if it does,
|
||||
// it should be treated as no-op (according to the
|
||||
// Reader contract). So let's go on...
|
||||
continue
|
||||
}
|
||||
bytesRead += newBytesRead
|
||||
// Now present everything read so far to the varint decoder and
|
||||
// see if a varint can be decoded already.
|
||||
messageLength, varIntBytes = proto.DecodeVarint(headerBuf[:bytesRead])
|
||||
}
|
||||
|
||||
messageBuf := make([]byte, messageLength)
|
||||
newBytesRead, err := io.ReadFull(r, messageBuf)
|
||||
bytesRead += newBytesRead
|
||||
if err != nil {
|
||||
return bytesRead, err
|
||||
}
|
||||
|
||||
return bytesRead, proto.Unmarshal(messageBuf, m)
|
||||
}
|
16
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/doc.go
generated
vendored
Normal file
16
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/doc.go
generated
vendored
Normal file
@ -0,0 +1,16 @@
|
||||
// Copyright 2013 Matt T. Proud
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
// Package pbutil provides record length-delimited Protocol Buffer streaming.
|
||||
package pbutil
|
46
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/encode.go
generated
vendored
Normal file
46
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/encode.go
generated
vendored
Normal file
@ -0,0 +1,46 @@
|
||||
// Copyright 2013 Matt T. Proud
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package pbutil
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"io"
|
||||
|
||||
"github.com/golang/protobuf/proto"
|
||||
)
|
||||
|
||||
// WriteDelimited encodes and dumps a message to the provided writer prefixed
|
||||
// with a 32-bit varint indicating the length of the encoded message, producing
|
||||
// a length-delimited record stream, which can be used to chain together
|
||||
// encoded messages of the same type together in a file. It returns the total
|
||||
// number of bytes written and any applicable error. This is roughly
|
||||
// equivalent to the companion Java API's MessageLite#writeDelimitedTo.
|
||||
func WriteDelimited(w io.Writer, m proto.Message) (n int, err error) {
|
||||
buffer, err := proto.Marshal(m)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
var buf [binary.MaxVarintLen32]byte
|
||||
encodedLength := binary.PutUvarint(buf[:], uint64(len(buffer)))
|
||||
|
||||
sync, err := w.Write(buf[:encodedLength])
|
||||
if err != nil {
|
||||
return sync, err
|
||||
}
|
||||
|
||||
n, err = w.Write(buffer)
|
||||
return n + sync, err
|
||||
}
|
201
vendor/github.com/prometheus/client_golang/LICENSE
generated
vendored
Normal file
201
vendor/github.com/prometheus/client_golang/LICENSE
generated
vendored
Normal file
@ -0,0 +1,201 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
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|
||||
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|
||||
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|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
the Work and Derivative Works thereof.
|
||||
|
||||
"Contribution" shall mean any work of authorship, including
|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
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|
||||
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|
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|
||||
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|
||||
|
||||
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||
on behalf of whom a Contribution has been received by Licensor and
|
||||
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|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
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this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
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|
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|
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|
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|
||||
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|
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|
||||
with the Work to which such Contribution(s) was submitted. If You
|
||||
institute patent litigation against any entity (including a
|
||||
cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||
or a Contribution incorporated within the Work constitutes direct
|
||||
or contributory patent infringement, then any patent licenses
|
||||
granted to You under this License for that Work shall terminate
|
||||
as of the date such litigation is filed.
|
||||
|
||||
4. Redistribution. You may reproduce and distribute copies of the
|
||||
Work or Derivative Works thereof in any medium, with or without
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||||
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|
||||
meet the following conditions:
|
||||
|
||||
(a) You must give any other recipients of the Work or
|
||||
Derivative Works a copy of this License; and
|
||||
|
||||
(b) You must cause any modified files to carry prominent notices
|
||||
stating that You changed the files; and
|
||||
|
||||
(c) You must retain, in the Source form of any Derivative Works
|
||||
that You distribute, all copyright, patent, trademark, and
|
||||
attribution notices from the Source form of the Work,
|
||||
excluding those notices that do not pertain to any part of
|
||||
the Derivative Works; and
|
||||
|
||||
(d) If the Work includes a "NOTICE" text file as part of its
|
||||
distribution, then any Derivative Works that You distribute must
|
||||
include a readable copy of the attribution notices contained
|
||||
within such NOTICE file, excluding those notices that do not
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|
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|
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|
||||
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|
||||
of the NOTICE file are for informational purposes only and
|
||||
do not modify the License. You may add Your own attribution
|
||||
notices within Derivative Works that You distribute, alongside
|
||||
or as an addendum to the NOTICE text from the Work, provided
|
||||
that such additional attribution notices cannot be construed
|
||||
as modifying the License.
|
||||
|
||||
You may add Your own copyright statement to Your modifications and
|
||||
may provide additional or different license terms and conditions
|
||||
for use, reproduction, or distribution of Your modifications, or
|
||||
for any such Derivative Works as a whole, provided Your use,
|
||||
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|
||||
the conditions stated in this License.
|
||||
|
||||
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
|
||||
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|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
||||
the terms of any separate license agreement you may have executed
|
||||
with Licensor regarding such Contributions.
|
||||
|
||||
6. Trademarks. This License does not grant permission to use the trade
|
||||
names, trademarks, service marks, or product names of the Licensor,
|
||||
except as required for reasonable and customary use in describing the
|
||||
origin of the Work and reproducing the content of the NOTICE file.
|
||||
|
||||
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||
agreed to in writing, Licensor provides the Work (and each
|
||||
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
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implied, including, without limitation, any warranties or conditions
|
||||
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|
||||
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|
||||
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|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
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|
||||
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|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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|
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|
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|
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|
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|
||||
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|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
Copyright [yyyy] [name of copyright owner]
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
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|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
23
vendor/github.com/prometheus/client_golang/NOTICE
generated
vendored
Normal file
23
vendor/github.com/prometheus/client_golang/NOTICE
generated
vendored
Normal file
@ -0,0 +1,23 @@
|
||||
Prometheus instrumentation library for Go applications
|
||||
Copyright 2012-2015 The Prometheus Authors
|
||||
|
||||
This product includes software developed at
|
||||
SoundCloud Ltd. (http://soundcloud.com/).
|
||||
|
||||
|
||||
The following components are included in this product:
|
||||
|
||||
perks - a fork of https://github.com/bmizerany/perks
|
||||
https://github.com/beorn7/perks
|
||||
Copyright 2013-2015 Blake Mizerany, Björn Rabenstein
|
||||
See https://github.com/beorn7/perks/blob/master/README.md for license details.
|
||||
|
||||
Go support for Protocol Buffers - Google's data interchange format
|
||||
http://github.com/golang/protobuf/
|
||||
Copyright 2010 The Go Authors
|
||||
See source code for license details.
|
||||
|
||||
Support for streaming Protocol Buffer messages for the Go language (golang).
|
||||
https://github.com/matttproud/golang_protobuf_extensions
|
||||
Copyright 2013 Matt T. Proud
|
||||
Licensed under the Apache License, Version 2.0
|
1
vendor/github.com/prometheus/client_golang/prometheus/.gitignore
generated
vendored
Normal file
1
vendor/github.com/prometheus/client_golang/prometheus/.gitignore
generated
vendored
Normal file
@ -0,0 +1 @@
|
||||
command-line-arguments.test
|
1
vendor/github.com/prometheus/client_golang/prometheus/README.md
generated
vendored
Normal file
1
vendor/github.com/prometheus/client_golang/prometheus/README.md
generated
vendored
Normal file
@ -0,0 +1 @@
|
||||
See [![go-doc](https://godoc.org/github.com/prometheus/client_golang/prometheus?status.svg)](https://godoc.org/github.com/prometheus/client_golang/prometheus).
|
120
vendor/github.com/prometheus/client_golang/prometheus/collector.go
generated
vendored
Normal file
120
vendor/github.com/prometheus/client_golang/prometheus/collector.go
generated
vendored
Normal file
@ -0,0 +1,120 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
// Collector is the interface implemented by anything that can be used by
|
||||
// Prometheus to collect metrics. A Collector has to be registered for
|
||||
// collection. See Registerer.Register.
|
||||
//
|
||||
// The stock metrics provided by this package (Gauge, Counter, Summary,
|
||||
// Histogram, Untyped) are also Collectors (which only ever collect one metric,
|
||||
// namely itself). An implementer of Collector may, however, collect multiple
|
||||
// metrics in a coordinated fashion and/or create metrics on the fly. Examples
|
||||
// for collectors already implemented in this library are the metric vectors
|
||||
// (i.e. collection of multiple instances of the same Metric but with different
|
||||
// label values) like GaugeVec or SummaryVec, and the ExpvarCollector.
|
||||
type Collector interface {
|
||||
// Describe sends the super-set of all possible descriptors of metrics
|
||||
// collected by this Collector to the provided channel and returns once
|
||||
// the last descriptor has been sent. The sent descriptors fulfill the
|
||||
// consistency and uniqueness requirements described in the Desc
|
||||
// documentation.
|
||||
//
|
||||
// It is valid if one and the same Collector sends duplicate
|
||||
// descriptors. Those duplicates are simply ignored. However, two
|
||||
// different Collectors must not send duplicate descriptors.
|
||||
//
|
||||
// Sending no descriptor at all marks the Collector as “unchecked”,
|
||||
// i.e. no checks will be performed at registration time, and the
|
||||
// Collector may yield any Metric it sees fit in its Collect method.
|
||||
//
|
||||
// This method idempotently sends the same descriptors throughout the
|
||||
// lifetime of the Collector. It may be called concurrently and
|
||||
// therefore must be implemented in a concurrency safe way.
|
||||
//
|
||||
// If a Collector encounters an error while executing this method, it
|
||||
// must send an invalid descriptor (created with NewInvalidDesc) to
|
||||
// signal the error to the registry.
|
||||
Describe(chan<- *Desc)
|
||||
// Collect is called by the Prometheus registry when collecting
|
||||
// metrics. The implementation sends each collected metric via the
|
||||
// provided channel and returns once the last metric has been sent. The
|
||||
// descriptor of each sent metric is one of those returned by Describe
|
||||
// (unless the Collector is unchecked, see above). Returned metrics that
|
||||
// share the same descriptor must differ in their variable label
|
||||
// values.
|
||||
//
|
||||
// This method may be called concurrently and must therefore be
|
||||
// implemented in a concurrency safe way. Blocking occurs at the expense
|
||||
// of total performance of rendering all registered metrics. Ideally,
|
||||
// Collector implementations support concurrent readers.
|
||||
Collect(chan<- Metric)
|
||||
}
|
||||
|
||||
// DescribeByCollect is a helper to implement the Describe method of a custom
|
||||
// Collector. It collects the metrics from the provided Collector and sends
|
||||
// their descriptors to the provided channel.
|
||||
//
|
||||
// If a Collector collects the same metrics throughout its lifetime, its
|
||||
// Describe method can simply be implemented as:
|
||||
//
|
||||
// func (c customCollector) Describe(ch chan<- *Desc) {
|
||||
// DescribeByCollect(c, ch)
|
||||
// }
|
||||
//
|
||||
// However, this will not work if the metrics collected change dynamically over
|
||||
// the lifetime of the Collector in a way that their combined set of descriptors
|
||||
// changes as well. The shortcut implementation will then violate the contract
|
||||
// of the Describe method. If a Collector sometimes collects no metrics at all
|
||||
// (for example vectors like CounterVec, GaugeVec, etc., which only collect
|
||||
// metrics after a metric with a fully specified label set has been accessed),
|
||||
// it might even get registered as an unchecked Collector (cf. the Register
|
||||
// method of the Registerer interface). Hence, only use this shortcut
|
||||
// implementation of Describe if you are certain to fulfill the contract.
|
||||
//
|
||||
// The Collector example demonstrates a use of DescribeByCollect.
|
||||
func DescribeByCollect(c Collector, descs chan<- *Desc) {
|
||||
metrics := make(chan Metric)
|
||||
go func() {
|
||||
c.Collect(metrics)
|
||||
close(metrics)
|
||||
}()
|
||||
for m := range metrics {
|
||||
descs <- m.Desc()
|
||||
}
|
||||
}
|
||||
|
||||
// selfCollector implements Collector for a single Metric so that the Metric
|
||||
// collects itself. Add it as an anonymous field to a struct that implements
|
||||
// Metric, and call init with the Metric itself as an argument.
|
||||
type selfCollector struct {
|
||||
self Metric
|
||||
}
|
||||
|
||||
// init provides the selfCollector with a reference to the metric it is supposed
|
||||
// to collect. It is usually called within the factory function to create a
|
||||
// metric. See example.
|
||||
func (c *selfCollector) init(self Metric) {
|
||||
c.self = self
|
||||
}
|
||||
|
||||
// Describe implements Collector.
|
||||
func (c *selfCollector) Describe(ch chan<- *Desc) {
|
||||
ch <- c.self.Desc()
|
||||
}
|
||||
|
||||
// Collect implements Collector.
|
||||
func (c *selfCollector) Collect(ch chan<- Metric) {
|
||||
ch <- c.self
|
||||
}
|
321
vendor/github.com/prometheus/client_golang/prometheus/counter.go
generated
vendored
Normal file
321
vendor/github.com/prometheus/client_golang/prometheus/counter.go
generated
vendored
Normal file
@ -0,0 +1,321 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"math"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// Counter is a Metric that represents a single numerical value that only ever
|
||||
// goes up. That implies that it cannot be used to count items whose number can
|
||||
// also go down, e.g. the number of currently running goroutines. Those
|
||||
// "counters" are represented by Gauges.
|
||||
//
|
||||
// A Counter is typically used to count requests served, tasks completed, errors
|
||||
// occurred, etc.
|
||||
//
|
||||
// To create Counter instances, use NewCounter.
|
||||
type Counter interface {
|
||||
Metric
|
||||
Collector
|
||||
|
||||
// Inc increments the counter by 1. Use Add to increment it by arbitrary
|
||||
// non-negative values.
|
||||
Inc()
|
||||
// Add adds the given value to the counter. It panics if the value is <
|
||||
// 0.
|
||||
Add(float64)
|
||||
}
|
||||
|
||||
// ExemplarAdder is implemented by Counters that offer the option of adding a
|
||||
// value to the Counter together with an exemplar. Its AddWithExemplar method
|
||||
// works like the Add method of the Counter interface but also replaces the
|
||||
// currently saved exemplar (if any) with a new one, created from the provided
|
||||
// value, the current time as timestamp, and the provided labels. Empty Labels
|
||||
// will lead to a valid (label-less) exemplar. But if Labels is nil, the current
|
||||
// exemplar is left in place. AddWithExemplar panics if the value is < 0, if any
|
||||
// of the provided labels are invalid, or if the provided labels contain more
|
||||
// than 64 runes in total.
|
||||
type ExemplarAdder interface {
|
||||
AddWithExemplar(value float64, exemplar Labels)
|
||||
}
|
||||
|
||||
// CounterOpts is an alias for Opts. See there for doc comments.
|
||||
type CounterOpts Opts
|
||||
|
||||
// NewCounter creates a new Counter based on the provided CounterOpts.
|
||||
//
|
||||
// The returned implementation also implements ExemplarAdder. It is safe to
|
||||
// perform the corresponding type assertion.
|
||||
//
|
||||
// The returned implementation tracks the counter value in two separate
|
||||
// variables, a float64 and a uint64. The latter is used to track calls of the
|
||||
// Inc method and calls of the Add method with a value that can be represented
|
||||
// as a uint64. This allows atomic increments of the counter with optimal
|
||||
// performance. (It is common to have an Inc call in very hot execution paths.)
|
||||
// Both internal tracking values are added up in the Write method. This has to
|
||||
// be taken into account when it comes to precision and overflow behavior.
|
||||
func NewCounter(opts CounterOpts) Counter {
|
||||
desc := NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
nil,
|
||||
opts.ConstLabels,
|
||||
)
|
||||
result := &counter{desc: desc, labelPairs: desc.constLabelPairs, now: time.Now}
|
||||
result.init(result) // Init self-collection.
|
||||
return result
|
||||
}
|
||||
|
||||
type counter struct {
|
||||
// valBits contains the bits of the represented float64 value, while
|
||||
// valInt stores values that are exact integers. Both have to go first
|
||||
// in the struct to guarantee alignment for atomic operations.
|
||||
// http://golang.org/pkg/sync/atomic/#pkg-note-BUG
|
||||
valBits uint64
|
||||
valInt uint64
|
||||
|
||||
selfCollector
|
||||
desc *Desc
|
||||
|
||||
labelPairs []*dto.LabelPair
|
||||
exemplar atomic.Value // Containing nil or a *dto.Exemplar.
|
||||
|
||||
now func() time.Time // To mock out time.Now() for testing.
|
||||
}
|
||||
|
||||
func (c *counter) Desc() *Desc {
|
||||
return c.desc
|
||||
}
|
||||
|
||||
func (c *counter) Add(v float64) {
|
||||
if v < 0 {
|
||||
panic(errors.New("counter cannot decrease in value"))
|
||||
}
|
||||
|
||||
ival := uint64(v)
|
||||
if float64(ival) == v {
|
||||
atomic.AddUint64(&c.valInt, ival)
|
||||
return
|
||||
}
|
||||
|
||||
for {
|
||||
oldBits := atomic.LoadUint64(&c.valBits)
|
||||
newBits := math.Float64bits(math.Float64frombits(oldBits) + v)
|
||||
if atomic.CompareAndSwapUint64(&c.valBits, oldBits, newBits) {
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (c *counter) AddWithExemplar(v float64, e Labels) {
|
||||
c.Add(v)
|
||||
c.updateExemplar(v, e)
|
||||
}
|
||||
|
||||
func (c *counter) Inc() {
|
||||
atomic.AddUint64(&c.valInt, 1)
|
||||
}
|
||||
|
||||
func (c *counter) Write(out *dto.Metric) error {
|
||||
fval := math.Float64frombits(atomic.LoadUint64(&c.valBits))
|
||||
ival := atomic.LoadUint64(&c.valInt)
|
||||
val := fval + float64(ival)
|
||||
|
||||
var exemplar *dto.Exemplar
|
||||
if e := c.exemplar.Load(); e != nil {
|
||||
exemplar = e.(*dto.Exemplar)
|
||||
}
|
||||
|
||||
return populateMetric(CounterValue, val, c.labelPairs, exemplar, out)
|
||||
}
|
||||
|
||||
func (c *counter) updateExemplar(v float64, l Labels) {
|
||||
if l == nil {
|
||||
return
|
||||
}
|
||||
e, err := newExemplar(v, c.now(), l)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
c.exemplar.Store(e)
|
||||
}
|
||||
|
||||
// CounterVec is a Collector that bundles a set of Counters that all share the
|
||||
// same Desc, but have different values for their variable labels. This is used
|
||||
// if you want to count the same thing partitioned by various dimensions
|
||||
// (e.g. number of HTTP requests, partitioned by response code and
|
||||
// method). Create instances with NewCounterVec.
|
||||
type CounterVec struct {
|
||||
*MetricVec
|
||||
}
|
||||
|
||||
// NewCounterVec creates a new CounterVec based on the provided CounterOpts and
|
||||
// partitioned by the given label names.
|
||||
func NewCounterVec(opts CounterOpts, labelNames []string) *CounterVec {
|
||||
desc := NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
labelNames,
|
||||
opts.ConstLabels,
|
||||
)
|
||||
return &CounterVec{
|
||||
MetricVec: NewMetricVec(desc, func(lvs ...string) Metric {
|
||||
if len(lvs) != len(desc.variableLabels) {
|
||||
panic(makeInconsistentCardinalityError(desc.fqName, desc.variableLabels, lvs))
|
||||
}
|
||||
result := &counter{desc: desc, labelPairs: MakeLabelPairs(desc, lvs), now: time.Now}
|
||||
result.init(result) // Init self-collection.
|
||||
return result
|
||||
}),
|
||||
}
|
||||
}
|
||||
|
||||
// GetMetricWithLabelValues returns the Counter for the given slice of label
|
||||
// values (same order as the variable labels in Desc). If that combination of
|
||||
// label values is accessed for the first time, a new Counter is created.
|
||||
//
|
||||
// It is possible to call this method without using the returned Counter to only
|
||||
// create the new Counter but leave it at its starting value 0. See also the
|
||||
// SummaryVec example.
|
||||
//
|
||||
// Keeping the Counter for later use is possible (and should be considered if
|
||||
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
|
||||
// Delete can be used to delete the Counter from the CounterVec. In that case,
|
||||
// the Counter will still exist, but it will not be exported anymore, even if a
|
||||
// Counter with the same label values is created later.
|
||||
//
|
||||
// An error is returned if the number of label values is not the same as the
|
||||
// number of variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// Note that for more than one label value, this method is prone to mistakes
|
||||
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
|
||||
// an alternative to avoid that type of mistake. For higher label numbers, the
|
||||
// latter has a much more readable (albeit more verbose) syntax, but it comes
|
||||
// with a performance overhead (for creating and processing the Labels map).
|
||||
// See also the GaugeVec example.
|
||||
func (v *CounterVec) GetMetricWithLabelValues(lvs ...string) (Counter, error) {
|
||||
metric, err := v.MetricVec.GetMetricWithLabelValues(lvs...)
|
||||
if metric != nil {
|
||||
return metric.(Counter), err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// GetMetricWith returns the Counter for the given Labels map (the label names
|
||||
// must match those of the variable labels in Desc). If that label map is
|
||||
// accessed for the first time, a new Counter is created. Implications of
|
||||
// creating a Counter without using it and keeping the Counter for later use are
|
||||
// the same as for GetMetricWithLabelValues.
|
||||
//
|
||||
// An error is returned if the number and names of the Labels are inconsistent
|
||||
// with those of the variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// This method is used for the same purpose as
|
||||
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
|
||||
// methods.
|
||||
func (v *CounterVec) GetMetricWith(labels Labels) (Counter, error) {
|
||||
metric, err := v.MetricVec.GetMetricWith(labels)
|
||||
if metric != nil {
|
||||
return metric.(Counter), err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// WithLabelValues works as GetMetricWithLabelValues, but panics where
|
||||
// GetMetricWithLabelValues would have returned an error. Not returning an
|
||||
// error allows shortcuts like
|
||||
// myVec.WithLabelValues("404", "GET").Add(42)
|
||||
func (v *CounterVec) WithLabelValues(lvs ...string) Counter {
|
||||
c, err := v.GetMetricWithLabelValues(lvs...)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
||||
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
|
||||
// returned an error. Not returning an error allows shortcuts like
|
||||
// myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Add(42)
|
||||
func (v *CounterVec) With(labels Labels) Counter {
|
||||
c, err := v.GetMetricWith(labels)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
||||
// CurryWith returns a vector curried with the provided labels, i.e. the
|
||||
// returned vector has those labels pre-set for all labeled operations performed
|
||||
// on it. The cardinality of the curried vector is reduced accordingly. The
|
||||
// order of the remaining labels stays the same (just with the curried labels
|
||||
// taken out of the sequence – which is relevant for the
|
||||
// (GetMetric)WithLabelValues methods). It is possible to curry a curried
|
||||
// vector, but only with labels not yet used for currying before.
|
||||
//
|
||||
// The metrics contained in the CounterVec are shared between the curried and
|
||||
// uncurried vectors. They are just accessed differently. Curried and uncurried
|
||||
// vectors behave identically in terms of collection. Only one must be
|
||||
// registered with a given registry (usually the uncurried version). The Reset
|
||||
// method deletes all metrics, even if called on a curried vector.
|
||||
func (v *CounterVec) CurryWith(labels Labels) (*CounterVec, error) {
|
||||
vec, err := v.MetricVec.CurryWith(labels)
|
||||
if vec != nil {
|
||||
return &CounterVec{vec}, err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// MustCurryWith works as CurryWith but panics where CurryWith would have
|
||||
// returned an error.
|
||||
func (v *CounterVec) MustCurryWith(labels Labels) *CounterVec {
|
||||
vec, err := v.CurryWith(labels)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return vec
|
||||
}
|
||||
|
||||
// CounterFunc is a Counter whose value is determined at collect time by calling a
|
||||
// provided function.
|
||||
//
|
||||
// To create CounterFunc instances, use NewCounterFunc.
|
||||
type CounterFunc interface {
|
||||
Metric
|
||||
Collector
|
||||
}
|
||||
|
||||
// NewCounterFunc creates a new CounterFunc based on the provided
|
||||
// CounterOpts. The value reported is determined by calling the given function
|
||||
// from within the Write method. Take into account that metric collection may
|
||||
// happen concurrently. If that results in concurrent calls to Write, like in
|
||||
// the case where a CounterFunc is directly registered with Prometheus, the
|
||||
// provided function must be concurrency-safe. The function should also honor
|
||||
// the contract for a Counter (values only go up, not down), but compliance will
|
||||
// not be checked.
|
||||
//
|
||||
// Check out the ExampleGaugeFunc examples for the similar GaugeFunc.
|
||||
func NewCounterFunc(opts CounterOpts, function func() float64) CounterFunc {
|
||||
return newValueFunc(NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
nil,
|
||||
opts.ConstLabels,
|
||||
), CounterValue, function)
|
||||
}
|
186
vendor/github.com/prometheus/client_golang/prometheus/desc.go
generated
vendored
Normal file
186
vendor/github.com/prometheus/client_golang/prometheus/desc.go
generated
vendored
Normal file
@ -0,0 +1,186 @@
|
||||
// Copyright 2016 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"sort"
|
||||
"strings"
|
||||
|
||||
"github.com/cespare/xxhash/v2"
|
||||
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
|
||||
"github.com/golang/protobuf/proto"
|
||||
"github.com/prometheus/common/model"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// Desc is the descriptor used by every Prometheus Metric. It is essentially
|
||||
// the immutable meta-data of a Metric. The normal Metric implementations
|
||||
// included in this package manage their Desc under the hood. Users only have to
|
||||
// deal with Desc if they use advanced features like the ExpvarCollector or
|
||||
// custom Collectors and Metrics.
|
||||
//
|
||||
// Descriptors registered with the same registry have to fulfill certain
|
||||
// consistency and uniqueness criteria if they share the same fully-qualified
|
||||
// name: They must have the same help string and the same label names (aka label
|
||||
// dimensions) in each, constLabels and variableLabels, but they must differ in
|
||||
// the values of the constLabels.
|
||||
//
|
||||
// Descriptors that share the same fully-qualified names and the same label
|
||||
// values of their constLabels are considered equal.
|
||||
//
|
||||
// Use NewDesc to create new Desc instances.
|
||||
type Desc struct {
|
||||
// fqName has been built from Namespace, Subsystem, and Name.
|
||||
fqName string
|
||||
// help provides some helpful information about this metric.
|
||||
help string
|
||||
// constLabelPairs contains precalculated DTO label pairs based on
|
||||
// the constant labels.
|
||||
constLabelPairs []*dto.LabelPair
|
||||
// variableLabels contains names of labels for which the metric
|
||||
// maintains variable values.
|
||||
variableLabels []string
|
||||
// id is a hash of the values of the ConstLabels and fqName. This
|
||||
// must be unique among all registered descriptors and can therefore be
|
||||
// used as an identifier of the descriptor.
|
||||
id uint64
|
||||
// dimHash is a hash of the label names (preset and variable) and the
|
||||
// Help string. Each Desc with the same fqName must have the same
|
||||
// dimHash.
|
||||
dimHash uint64
|
||||
// err is an error that occurred during construction. It is reported on
|
||||
// registration time.
|
||||
err error
|
||||
}
|
||||
|
||||
// NewDesc allocates and initializes a new Desc. Errors are recorded in the Desc
|
||||
// and will be reported on registration time. variableLabels and constLabels can
|
||||
// be nil if no such labels should be set. fqName must not be empty.
|
||||
//
|
||||
// variableLabels only contain the label names. Their label values are variable
|
||||
// and therefore not part of the Desc. (They are managed within the Metric.)
|
||||
//
|
||||
// For constLabels, the label values are constant. Therefore, they are fully
|
||||
// specified in the Desc. See the Collector example for a usage pattern.
|
||||
func NewDesc(fqName, help string, variableLabels []string, constLabels Labels) *Desc {
|
||||
d := &Desc{
|
||||
fqName: fqName,
|
||||
help: help,
|
||||
variableLabels: variableLabels,
|
||||
}
|
||||
if !model.IsValidMetricName(model.LabelValue(fqName)) {
|
||||
d.err = fmt.Errorf("%q is not a valid metric name", fqName)
|
||||
return d
|
||||
}
|
||||
// labelValues contains the label values of const labels (in order of
|
||||
// their sorted label names) plus the fqName (at position 0).
|
||||
labelValues := make([]string, 1, len(constLabels)+1)
|
||||
labelValues[0] = fqName
|
||||
labelNames := make([]string, 0, len(constLabels)+len(variableLabels))
|
||||
labelNameSet := map[string]struct{}{}
|
||||
// First add only the const label names and sort them...
|
||||
for labelName := range constLabels {
|
||||
if !checkLabelName(labelName) {
|
||||
d.err = fmt.Errorf("%q is not a valid label name for metric %q", labelName, fqName)
|
||||
return d
|
||||
}
|
||||
labelNames = append(labelNames, labelName)
|
||||
labelNameSet[labelName] = struct{}{}
|
||||
}
|
||||
sort.Strings(labelNames)
|
||||
// ... so that we can now add const label values in the order of their names.
|
||||
for _, labelName := range labelNames {
|
||||
labelValues = append(labelValues, constLabels[labelName])
|
||||
}
|
||||
// Validate the const label values. They can't have a wrong cardinality, so
|
||||
// use in len(labelValues) as expectedNumberOfValues.
|
||||
if err := validateLabelValues(labelValues, len(labelValues)); err != nil {
|
||||
d.err = err
|
||||
return d
|
||||
}
|
||||
// Now add the variable label names, but prefix them with something that
|
||||
// cannot be in a regular label name. That prevents matching the label
|
||||
// dimension with a different mix between preset and variable labels.
|
||||
for _, labelName := range variableLabels {
|
||||
if !checkLabelName(labelName) {
|
||||
d.err = fmt.Errorf("%q is not a valid label name for metric %q", labelName, fqName)
|
||||
return d
|
||||
}
|
||||
labelNames = append(labelNames, "$"+labelName)
|
||||
labelNameSet[labelName] = struct{}{}
|
||||
}
|
||||
if len(labelNames) != len(labelNameSet) {
|
||||
d.err = errors.New("duplicate label names")
|
||||
return d
|
||||
}
|
||||
|
||||
xxh := xxhash.New()
|
||||
for _, val := range labelValues {
|
||||
xxh.WriteString(val)
|
||||
xxh.Write(separatorByteSlice)
|
||||
}
|
||||
d.id = xxh.Sum64()
|
||||
// Sort labelNames so that order doesn't matter for the hash.
|
||||
sort.Strings(labelNames)
|
||||
// Now hash together (in this order) the help string and the sorted
|
||||
// label names.
|
||||
xxh.Reset()
|
||||
xxh.WriteString(help)
|
||||
xxh.Write(separatorByteSlice)
|
||||
for _, labelName := range labelNames {
|
||||
xxh.WriteString(labelName)
|
||||
xxh.Write(separatorByteSlice)
|
||||
}
|
||||
d.dimHash = xxh.Sum64()
|
||||
|
||||
d.constLabelPairs = make([]*dto.LabelPair, 0, len(constLabels))
|
||||
for n, v := range constLabels {
|
||||
d.constLabelPairs = append(d.constLabelPairs, &dto.LabelPair{
|
||||
Name: proto.String(n),
|
||||
Value: proto.String(v),
|
||||
})
|
||||
}
|
||||
sort.Sort(labelPairSorter(d.constLabelPairs))
|
||||
return d
|
||||
}
|
||||
|
||||
// NewInvalidDesc returns an invalid descriptor, i.e. a descriptor with the
|
||||
// provided error set. If a collector returning such a descriptor is registered,
|
||||
// registration will fail with the provided error. NewInvalidDesc can be used by
|
||||
// a Collector to signal inability to describe itself.
|
||||
func NewInvalidDesc(err error) *Desc {
|
||||
return &Desc{
|
||||
err: err,
|
||||
}
|
||||
}
|
||||
|
||||
func (d *Desc) String() string {
|
||||
lpStrings := make([]string, 0, len(d.constLabelPairs))
|
||||
for _, lp := range d.constLabelPairs {
|
||||
lpStrings = append(
|
||||
lpStrings,
|
||||
fmt.Sprintf("%s=%q", lp.GetName(), lp.GetValue()),
|
||||
)
|
||||
}
|
||||
return fmt.Sprintf(
|
||||
"Desc{fqName: %q, help: %q, constLabels: {%s}, variableLabels: %v}",
|
||||
d.fqName,
|
||||
d.help,
|
||||
strings.Join(lpStrings, ","),
|
||||
d.variableLabels,
|
||||
)
|
||||
}
|
199
vendor/github.com/prometheus/client_golang/prometheus/doc.go
generated
vendored
Normal file
199
vendor/github.com/prometheus/client_golang/prometheus/doc.go
generated
vendored
Normal file
@ -0,0 +1,199 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
// Package prometheus is the core instrumentation package. It provides metrics
|
||||
// primitives to instrument code for monitoring. It also offers a registry for
|
||||
// metrics. Sub-packages allow to expose the registered metrics via HTTP
|
||||
// (package promhttp) or push them to a Pushgateway (package push). There is
|
||||
// also a sub-package promauto, which provides metrics constructors with
|
||||
// automatic registration.
|
||||
//
|
||||
// All exported functions and methods are safe to be used concurrently unless
|
||||
// specified otherwise.
|
||||
//
|
||||
// A Basic Example
|
||||
//
|
||||
// As a starting point, a very basic usage example:
|
||||
//
|
||||
// package main
|
||||
//
|
||||
// import (
|
||||
// "log"
|
||||
// "net/http"
|
||||
//
|
||||
// "github.com/prometheus/client_golang/prometheus"
|
||||
// "github.com/prometheus/client_golang/prometheus/promhttp"
|
||||
// )
|
||||
//
|
||||
// var (
|
||||
// cpuTemp = prometheus.NewGauge(prometheus.GaugeOpts{
|
||||
// Name: "cpu_temperature_celsius",
|
||||
// Help: "Current temperature of the CPU.",
|
||||
// })
|
||||
// hdFailures = prometheus.NewCounterVec(
|
||||
// prometheus.CounterOpts{
|
||||
// Name: "hd_errors_total",
|
||||
// Help: "Number of hard-disk errors.",
|
||||
// },
|
||||
// []string{"device"},
|
||||
// )
|
||||
// )
|
||||
//
|
||||
// func init() {
|
||||
// // Metrics have to be registered to be exposed:
|
||||
// prometheus.MustRegister(cpuTemp)
|
||||
// prometheus.MustRegister(hdFailures)
|
||||
// }
|
||||
//
|
||||
// func main() {
|
||||
// cpuTemp.Set(65.3)
|
||||
// hdFailures.With(prometheus.Labels{"device":"/dev/sda"}).Inc()
|
||||
//
|
||||
// // The Handler function provides a default handler to expose metrics
|
||||
// // via an HTTP server. "/metrics" is the usual endpoint for that.
|
||||
// http.Handle("/metrics", promhttp.Handler())
|
||||
// log.Fatal(http.ListenAndServe(":8080", nil))
|
||||
// }
|
||||
//
|
||||
//
|
||||
// This is a complete program that exports two metrics, a Gauge and a Counter,
|
||||
// the latter with a label attached to turn it into a (one-dimensional) vector.
|
||||
//
|
||||
// Metrics
|
||||
//
|
||||
// The number of exported identifiers in this package might appear a bit
|
||||
// overwhelming. However, in addition to the basic plumbing shown in the example
|
||||
// above, you only need to understand the different metric types and their
|
||||
// vector versions for basic usage. Furthermore, if you are not concerned with
|
||||
// fine-grained control of when and how to register metrics with the registry,
|
||||
// have a look at the promauto package, which will effectively allow you to
|
||||
// ignore registration altogether in simple cases.
|
||||
//
|
||||
// Above, you have already touched the Counter and the Gauge. There are two more
|
||||
// advanced metric types: the Summary and Histogram. A more thorough description
|
||||
// of those four metric types can be found in the Prometheus docs:
|
||||
// https://prometheus.io/docs/concepts/metric_types/
|
||||
//
|
||||
// In addition to the fundamental metric types Gauge, Counter, Summary, and
|
||||
// Histogram, a very important part of the Prometheus data model is the
|
||||
// partitioning of samples along dimensions called labels, which results in
|
||||
// metric vectors. The fundamental types are GaugeVec, CounterVec, SummaryVec,
|
||||
// and HistogramVec.
|
||||
//
|
||||
// While only the fundamental metric types implement the Metric interface, both
|
||||
// the metrics and their vector versions implement the Collector interface. A
|
||||
// Collector manages the collection of a number of Metrics, but for convenience,
|
||||
// a Metric can also “collect itself”. Note that Gauge, Counter, Summary, and
|
||||
// Histogram are interfaces themselves while GaugeVec, CounterVec, SummaryVec,
|
||||
// and HistogramVec are not.
|
||||
//
|
||||
// To create instances of Metrics and their vector versions, you need a suitable
|
||||
// …Opts struct, i.e. GaugeOpts, CounterOpts, SummaryOpts, or HistogramOpts.
|
||||
//
|
||||
// Custom Collectors and constant Metrics
|
||||
//
|
||||
// While you could create your own implementations of Metric, most likely you
|
||||
// will only ever implement the Collector interface on your own. At a first
|
||||
// glance, a custom Collector seems handy to bundle Metrics for common
|
||||
// registration (with the prime example of the different metric vectors above,
|
||||
// which bundle all the metrics of the same name but with different labels).
|
||||
//
|
||||
// There is a more involved use case, too: If you already have metrics
|
||||
// available, created outside of the Prometheus context, you don't need the
|
||||
// interface of the various Metric types. You essentially want to mirror the
|
||||
// existing numbers into Prometheus Metrics during collection. An own
|
||||
// implementation of the Collector interface is perfect for that. You can create
|
||||
// Metric instances “on the fly” using NewConstMetric, NewConstHistogram, and
|
||||
// NewConstSummary (and their respective Must… versions). NewConstMetric is used
|
||||
// for all metric types with just a float64 as their value: Counter, Gauge, and
|
||||
// a special “type” called Untyped. Use the latter if you are not sure if the
|
||||
// mirrored metric is a Counter or a Gauge. Creation of the Metric instance
|
||||
// happens in the Collect method. The Describe method has to return separate
|
||||
// Desc instances, representative of the “throw-away” metrics to be created
|
||||
// later. NewDesc comes in handy to create those Desc instances. Alternatively,
|
||||
// you could return no Desc at all, which will mark the Collector “unchecked”.
|
||||
// No checks are performed at registration time, but metric consistency will
|
||||
// still be ensured at scrape time, i.e. any inconsistencies will lead to scrape
|
||||
// errors. Thus, with unchecked Collectors, the responsibility to not collect
|
||||
// metrics that lead to inconsistencies in the total scrape result lies with the
|
||||
// implementer of the Collector. While this is not a desirable state, it is
|
||||
// sometimes necessary. The typical use case is a situation where the exact
|
||||
// metrics to be returned by a Collector cannot be predicted at registration
|
||||
// time, but the implementer has sufficient knowledge of the whole system to
|
||||
// guarantee metric consistency.
|
||||
//
|
||||
// The Collector example illustrates the use case. You can also look at the
|
||||
// source code of the processCollector (mirroring process metrics), the
|
||||
// goCollector (mirroring Go metrics), or the expvarCollector (mirroring expvar
|
||||
// metrics) as examples that are used in this package itself.
|
||||
//
|
||||
// If you just need to call a function to get a single float value to collect as
|
||||
// a metric, GaugeFunc, CounterFunc, or UntypedFunc might be interesting
|
||||
// shortcuts.
|
||||
//
|
||||
// Advanced Uses of the Registry
|
||||
//
|
||||
// While MustRegister is the by far most common way of registering a Collector,
|
||||
// sometimes you might want to handle the errors the registration might cause.
|
||||
// As suggested by the name, MustRegister panics if an error occurs. With the
|
||||
// Register function, the error is returned and can be handled.
|
||||
//
|
||||
// An error is returned if the registered Collector is incompatible or
|
||||
// inconsistent with already registered metrics. The registry aims for
|
||||
// consistency of the collected metrics according to the Prometheus data model.
|
||||
// Inconsistencies are ideally detected at registration time, not at collect
|
||||
// time. The former will usually be detected at start-up time of a program,
|
||||
// while the latter will only happen at scrape time, possibly not even on the
|
||||
// first scrape if the inconsistency only becomes relevant later. That is the
|
||||
// main reason why a Collector and a Metric have to describe themselves to the
|
||||
// registry.
|
||||
//
|
||||
// So far, everything we did operated on the so-called default registry, as it
|
||||
// can be found in the global DefaultRegisterer variable. With NewRegistry, you
|
||||
// can create a custom registry, or you can even implement the Registerer or
|
||||
// Gatherer interfaces yourself. The methods Register and Unregister work in the
|
||||
// same way on a custom registry as the global functions Register and Unregister
|
||||
// on the default registry.
|
||||
//
|
||||
// There are a number of uses for custom registries: You can use registries with
|
||||
// special properties, see NewPedanticRegistry. You can avoid global state, as
|
||||
// it is imposed by the DefaultRegisterer. You can use multiple registries at
|
||||
// the same time to expose different metrics in different ways. You can use
|
||||
// separate registries for testing purposes.
|
||||
//
|
||||
// Also note that the DefaultRegisterer comes registered with a Collector for Go
|
||||
// runtime metrics (via NewGoCollector) and a Collector for process metrics (via
|
||||
// NewProcessCollector). With a custom registry, you are in control and decide
|
||||
// yourself about the Collectors to register.
|
||||
//
|
||||
// HTTP Exposition
|
||||
//
|
||||
// The Registry implements the Gatherer interface. The caller of the Gather
|
||||
// method can then expose the gathered metrics in some way. Usually, the metrics
|
||||
// are served via HTTP on the /metrics endpoint. That's happening in the example
|
||||
// above. The tools to expose metrics via HTTP are in the promhttp sub-package.
|
||||
//
|
||||
// Pushing to the Pushgateway
|
||||
//
|
||||
// Function for pushing to the Pushgateway can be found in the push sub-package.
|
||||
//
|
||||
// Graphite Bridge
|
||||
//
|
||||
// Functions and examples to push metrics from a Gatherer to Graphite can be
|
||||
// found in the graphite sub-package.
|
||||
//
|
||||
// Other Means of Exposition
|
||||
//
|
||||
// More ways of exposing metrics can easily be added by following the approaches
|
||||
// of the existing implementations.
|
||||
package prometheus
|
119
vendor/github.com/prometheus/client_golang/prometheus/expvar_collector.go
generated
vendored
Normal file
119
vendor/github.com/prometheus/client_golang/prometheus/expvar_collector.go
generated
vendored
Normal file
@ -0,0 +1,119 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"expvar"
|
||||
)
|
||||
|
||||
type expvarCollector struct {
|
||||
exports map[string]*Desc
|
||||
}
|
||||
|
||||
// NewExpvarCollector returns a newly allocated expvar Collector that still has
|
||||
// to be registered with a Prometheus registry.
|
||||
//
|
||||
// An expvar Collector collects metrics from the expvar interface. It provides a
|
||||
// quick way to expose numeric values that are already exported via expvar as
|
||||
// Prometheus metrics. Note that the data models of expvar and Prometheus are
|
||||
// fundamentally different, and that the expvar Collector is inherently slower
|
||||
// than native Prometheus metrics. Thus, the expvar Collector is probably great
|
||||
// for experiments and prototying, but you should seriously consider a more
|
||||
// direct implementation of Prometheus metrics for monitoring production
|
||||
// systems.
|
||||
//
|
||||
// The exports map has the following meaning:
|
||||
//
|
||||
// The keys in the map correspond to expvar keys, i.e. for every expvar key you
|
||||
// want to export as Prometheus metric, you need an entry in the exports
|
||||
// map. The descriptor mapped to each key describes how to export the expvar
|
||||
// value. It defines the name and the help string of the Prometheus metric
|
||||
// proxying the expvar value. The type will always be Untyped.
|
||||
//
|
||||
// For descriptors without variable labels, the expvar value must be a number or
|
||||
// a bool. The number is then directly exported as the Prometheus sample
|
||||
// value. (For a bool, 'false' translates to 0 and 'true' to 1). Expvar values
|
||||
// that are not numbers or bools are silently ignored.
|
||||
//
|
||||
// If the descriptor has one variable label, the expvar value must be an expvar
|
||||
// map. The keys in the expvar map become the various values of the one
|
||||
// Prometheus label. The values in the expvar map must be numbers or bools again
|
||||
// as above.
|
||||
//
|
||||
// For descriptors with more than one variable label, the expvar must be a
|
||||
// nested expvar map, i.e. where the values of the topmost map are maps again
|
||||
// etc. until a depth is reached that corresponds to the number of labels. The
|
||||
// leaves of that structure must be numbers or bools as above to serve as the
|
||||
// sample values.
|
||||
//
|
||||
// Anything that does not fit into the scheme above is silently ignored.
|
||||
func NewExpvarCollector(exports map[string]*Desc) Collector {
|
||||
return &expvarCollector{
|
||||
exports: exports,
|
||||
}
|
||||
}
|
||||
|
||||
// Describe implements Collector.
|
||||
func (e *expvarCollector) Describe(ch chan<- *Desc) {
|
||||
for _, desc := range e.exports {
|
||||
ch <- desc
|
||||
}
|
||||
}
|
||||
|
||||
// Collect implements Collector.
|
||||
func (e *expvarCollector) Collect(ch chan<- Metric) {
|
||||
for name, desc := range e.exports {
|
||||
var m Metric
|
||||
expVar := expvar.Get(name)
|
||||
if expVar == nil {
|
||||
continue
|
||||
}
|
||||
var v interface{}
|
||||
labels := make([]string, len(desc.variableLabels))
|
||||
if err := json.Unmarshal([]byte(expVar.String()), &v); err != nil {
|
||||
ch <- NewInvalidMetric(desc, err)
|
||||
continue
|
||||
}
|
||||
var processValue func(v interface{}, i int)
|
||||
processValue = func(v interface{}, i int) {
|
||||
if i >= len(labels) {
|
||||
copiedLabels := append(make([]string, 0, len(labels)), labels...)
|
||||
switch v := v.(type) {
|
||||
case float64:
|
||||
m = MustNewConstMetric(desc, UntypedValue, v, copiedLabels...)
|
||||
case bool:
|
||||
if v {
|
||||
m = MustNewConstMetric(desc, UntypedValue, 1, copiedLabels...)
|
||||
} else {
|
||||
m = MustNewConstMetric(desc, UntypedValue, 0, copiedLabels...)
|
||||
}
|
||||
default:
|
||||
return
|
||||
}
|
||||
ch <- m
|
||||
return
|
||||
}
|
||||
vm, ok := v.(map[string]interface{})
|
||||
if !ok {
|
||||
return
|
||||
}
|
||||
for lv, val := range vm {
|
||||
labels[i] = lv
|
||||
processValue(val, i+1)
|
||||
}
|
||||
}
|
||||
processValue(v, 0)
|
||||
}
|
||||
}
|
42
vendor/github.com/prometheus/client_golang/prometheus/fnv.go
generated
vendored
Normal file
42
vendor/github.com/prometheus/client_golang/prometheus/fnv.go
generated
vendored
Normal file
@ -0,0 +1,42 @@
|
||||
// Copyright 2018 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
// Inline and byte-free variant of hash/fnv's fnv64a.
|
||||
|
||||
const (
|
||||
offset64 = 14695981039346656037
|
||||
prime64 = 1099511628211
|
||||
)
|
||||
|
||||
// hashNew initializies a new fnv64a hash value.
|
||||
func hashNew() uint64 {
|
||||
return offset64
|
||||
}
|
||||
|
||||
// hashAdd adds a string to a fnv64a hash value, returning the updated hash.
|
||||
func hashAdd(h uint64, s string) uint64 {
|
||||
for i := 0; i < len(s); i++ {
|
||||
h ^= uint64(s[i])
|
||||
h *= prime64
|
||||
}
|
||||
return h
|
||||
}
|
||||
|
||||
// hashAddByte adds a byte to a fnv64a hash value, returning the updated hash.
|
||||
func hashAddByte(h uint64, b byte) uint64 {
|
||||
h ^= uint64(b)
|
||||
h *= prime64
|
||||
return h
|
||||
}
|
289
vendor/github.com/prometheus/client_golang/prometheus/gauge.go
generated
vendored
Normal file
289
vendor/github.com/prometheus/client_golang/prometheus/gauge.go
generated
vendored
Normal file
@ -0,0 +1,289 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"math"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// Gauge is a Metric that represents a single numerical value that can
|
||||
// arbitrarily go up and down.
|
||||
//
|
||||
// A Gauge is typically used for measured values like temperatures or current
|
||||
// memory usage, but also "counts" that can go up and down, like the number of
|
||||
// running goroutines.
|
||||
//
|
||||
// To create Gauge instances, use NewGauge.
|
||||
type Gauge interface {
|
||||
Metric
|
||||
Collector
|
||||
|
||||
// Set sets the Gauge to an arbitrary value.
|
||||
Set(float64)
|
||||
// Inc increments the Gauge by 1. Use Add to increment it by arbitrary
|
||||
// values.
|
||||
Inc()
|
||||
// Dec decrements the Gauge by 1. Use Sub to decrement it by arbitrary
|
||||
// values.
|
||||
Dec()
|
||||
// Add adds the given value to the Gauge. (The value can be negative,
|
||||
// resulting in a decrease of the Gauge.)
|
||||
Add(float64)
|
||||
// Sub subtracts the given value from the Gauge. (The value can be
|
||||
// negative, resulting in an increase of the Gauge.)
|
||||
Sub(float64)
|
||||
|
||||
// SetToCurrentTime sets the Gauge to the current Unix time in seconds.
|
||||
SetToCurrentTime()
|
||||
}
|
||||
|
||||
// GaugeOpts is an alias for Opts. See there for doc comments.
|
||||
type GaugeOpts Opts
|
||||
|
||||
// NewGauge creates a new Gauge based on the provided GaugeOpts.
|
||||
//
|
||||
// The returned implementation is optimized for a fast Set method. If you have a
|
||||
// choice for managing the value of a Gauge via Set vs. Inc/Dec/Add/Sub, pick
|
||||
// the former. For example, the Inc method of the returned Gauge is slower than
|
||||
// the Inc method of a Counter returned by NewCounter. This matches the typical
|
||||
// scenarios for Gauges and Counters, where the former tends to be Set-heavy and
|
||||
// the latter Inc-heavy.
|
||||
func NewGauge(opts GaugeOpts) Gauge {
|
||||
desc := NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
nil,
|
||||
opts.ConstLabels,
|
||||
)
|
||||
result := &gauge{desc: desc, labelPairs: desc.constLabelPairs}
|
||||
result.init(result) // Init self-collection.
|
||||
return result
|
||||
}
|
||||
|
||||
type gauge struct {
|
||||
// valBits contains the bits of the represented float64 value. It has
|
||||
// to go first in the struct to guarantee alignment for atomic
|
||||
// operations. http://golang.org/pkg/sync/atomic/#pkg-note-BUG
|
||||
valBits uint64
|
||||
|
||||
selfCollector
|
||||
|
||||
desc *Desc
|
||||
labelPairs []*dto.LabelPair
|
||||
}
|
||||
|
||||
func (g *gauge) Desc() *Desc {
|
||||
return g.desc
|
||||
}
|
||||
|
||||
func (g *gauge) Set(val float64) {
|
||||
atomic.StoreUint64(&g.valBits, math.Float64bits(val))
|
||||
}
|
||||
|
||||
func (g *gauge) SetToCurrentTime() {
|
||||
g.Set(float64(time.Now().UnixNano()) / 1e9)
|
||||
}
|
||||
|
||||
func (g *gauge) Inc() {
|
||||
g.Add(1)
|
||||
}
|
||||
|
||||
func (g *gauge) Dec() {
|
||||
g.Add(-1)
|
||||
}
|
||||
|
||||
func (g *gauge) Add(val float64) {
|
||||
for {
|
||||
oldBits := atomic.LoadUint64(&g.valBits)
|
||||
newBits := math.Float64bits(math.Float64frombits(oldBits) + val)
|
||||
if atomic.CompareAndSwapUint64(&g.valBits, oldBits, newBits) {
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (g *gauge) Sub(val float64) {
|
||||
g.Add(val * -1)
|
||||
}
|
||||
|
||||
func (g *gauge) Write(out *dto.Metric) error {
|
||||
val := math.Float64frombits(atomic.LoadUint64(&g.valBits))
|
||||
return populateMetric(GaugeValue, val, g.labelPairs, nil, out)
|
||||
}
|
||||
|
||||
// GaugeVec is a Collector that bundles a set of Gauges that all share the same
|
||||
// Desc, but have different values for their variable labels. This is used if
|
||||
// you want to count the same thing partitioned by various dimensions
|
||||
// (e.g. number of operations queued, partitioned by user and operation
|
||||
// type). Create instances with NewGaugeVec.
|
||||
type GaugeVec struct {
|
||||
*MetricVec
|
||||
}
|
||||
|
||||
// NewGaugeVec creates a new GaugeVec based on the provided GaugeOpts and
|
||||
// partitioned by the given label names.
|
||||
func NewGaugeVec(opts GaugeOpts, labelNames []string) *GaugeVec {
|
||||
desc := NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
labelNames,
|
||||
opts.ConstLabels,
|
||||
)
|
||||
return &GaugeVec{
|
||||
MetricVec: NewMetricVec(desc, func(lvs ...string) Metric {
|
||||
if len(lvs) != len(desc.variableLabels) {
|
||||
panic(makeInconsistentCardinalityError(desc.fqName, desc.variableLabels, lvs))
|
||||
}
|
||||
result := &gauge{desc: desc, labelPairs: MakeLabelPairs(desc, lvs)}
|
||||
result.init(result) // Init self-collection.
|
||||
return result
|
||||
}),
|
||||
}
|
||||
}
|
||||
|
||||
// GetMetricWithLabelValues returns the Gauge for the given slice of label
|
||||
// values (same order as the variable labels in Desc). If that combination of
|
||||
// label values is accessed for the first time, a new Gauge is created.
|
||||
//
|
||||
// It is possible to call this method without using the returned Gauge to only
|
||||
// create the new Gauge but leave it at its starting value 0. See also the
|
||||
// SummaryVec example.
|
||||
//
|
||||
// Keeping the Gauge for later use is possible (and should be considered if
|
||||
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
|
||||
// Delete can be used to delete the Gauge from the GaugeVec. In that case, the
|
||||
// Gauge will still exist, but it will not be exported anymore, even if a
|
||||
// Gauge with the same label values is created later. See also the CounterVec
|
||||
// example.
|
||||
//
|
||||
// An error is returned if the number of label values is not the same as the
|
||||
// number of variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// Note that for more than one label value, this method is prone to mistakes
|
||||
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
|
||||
// an alternative to avoid that type of mistake. For higher label numbers, the
|
||||
// latter has a much more readable (albeit more verbose) syntax, but it comes
|
||||
// with a performance overhead (for creating and processing the Labels map).
|
||||
func (v *GaugeVec) GetMetricWithLabelValues(lvs ...string) (Gauge, error) {
|
||||
metric, err := v.MetricVec.GetMetricWithLabelValues(lvs...)
|
||||
if metric != nil {
|
||||
return metric.(Gauge), err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// GetMetricWith returns the Gauge for the given Labels map (the label names
|
||||
// must match those of the variable labels in Desc). If that label map is
|
||||
// accessed for the first time, a new Gauge is created. Implications of
|
||||
// creating a Gauge without using it and keeping the Gauge for later use are
|
||||
// the same as for GetMetricWithLabelValues.
|
||||
//
|
||||
// An error is returned if the number and names of the Labels are inconsistent
|
||||
// with those of the variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// This method is used for the same purpose as
|
||||
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
|
||||
// methods.
|
||||
func (v *GaugeVec) GetMetricWith(labels Labels) (Gauge, error) {
|
||||
metric, err := v.MetricVec.GetMetricWith(labels)
|
||||
if metric != nil {
|
||||
return metric.(Gauge), err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// WithLabelValues works as GetMetricWithLabelValues, but panics where
|
||||
// GetMetricWithLabelValues would have returned an error. Not returning an
|
||||
// error allows shortcuts like
|
||||
// myVec.WithLabelValues("404", "GET").Add(42)
|
||||
func (v *GaugeVec) WithLabelValues(lvs ...string) Gauge {
|
||||
g, err := v.GetMetricWithLabelValues(lvs...)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return g
|
||||
}
|
||||
|
||||
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
|
||||
// returned an error. Not returning an error allows shortcuts like
|
||||
// myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Add(42)
|
||||
func (v *GaugeVec) With(labels Labels) Gauge {
|
||||
g, err := v.GetMetricWith(labels)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return g
|
||||
}
|
||||
|
||||
// CurryWith returns a vector curried with the provided labels, i.e. the
|
||||
// returned vector has those labels pre-set for all labeled operations performed
|
||||
// on it. The cardinality of the curried vector is reduced accordingly. The
|
||||
// order of the remaining labels stays the same (just with the curried labels
|
||||
// taken out of the sequence – which is relevant for the
|
||||
// (GetMetric)WithLabelValues methods). It is possible to curry a curried
|
||||
// vector, but only with labels not yet used for currying before.
|
||||
//
|
||||
// The metrics contained in the GaugeVec are shared between the curried and
|
||||
// uncurried vectors. They are just accessed differently. Curried and uncurried
|
||||
// vectors behave identically in terms of collection. Only one must be
|
||||
// registered with a given registry (usually the uncurried version). The Reset
|
||||
// method deletes all metrics, even if called on a curried vector.
|
||||
func (v *GaugeVec) CurryWith(labels Labels) (*GaugeVec, error) {
|
||||
vec, err := v.MetricVec.CurryWith(labels)
|
||||
if vec != nil {
|
||||
return &GaugeVec{vec}, err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// MustCurryWith works as CurryWith but panics where CurryWith would have
|
||||
// returned an error.
|
||||
func (v *GaugeVec) MustCurryWith(labels Labels) *GaugeVec {
|
||||
vec, err := v.CurryWith(labels)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return vec
|
||||
}
|
||||
|
||||
// GaugeFunc is a Gauge whose value is determined at collect time by calling a
|
||||
// provided function.
|
||||
//
|
||||
// To create GaugeFunc instances, use NewGaugeFunc.
|
||||
type GaugeFunc interface {
|
||||
Metric
|
||||
Collector
|
||||
}
|
||||
|
||||
// NewGaugeFunc creates a new GaugeFunc based on the provided GaugeOpts. The
|
||||
// value reported is determined by calling the given function from within the
|
||||
// Write method. Take into account that metric collection may happen
|
||||
// concurrently. Therefore, it must be safe to call the provided function
|
||||
// concurrently.
|
||||
//
|
||||
// NewGaugeFunc is a good way to create an “info” style metric with a constant
|
||||
// value of 1. Example:
|
||||
// https://github.com/prometheus/common/blob/8558a5b7db3c84fa38b4766966059a7bd5bfa2ee/version/info.go#L36-L56
|
||||
func NewGaugeFunc(opts GaugeOpts, function func() float64) GaugeFunc {
|
||||
return newValueFunc(NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
nil,
|
||||
opts.ConstLabels,
|
||||
), GaugeValue, function)
|
||||
}
|
402
vendor/github.com/prometheus/client_golang/prometheus/go_collector.go
generated
vendored
Normal file
402
vendor/github.com/prometheus/client_golang/prometheus/go_collector.go
generated
vendored
Normal file
@ -0,0 +1,402 @@
|
||||
// Copyright 2018 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"runtime"
|
||||
"runtime/debug"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
type goCollector struct {
|
||||
goroutinesDesc *Desc
|
||||
threadsDesc *Desc
|
||||
gcDesc *Desc
|
||||
goInfoDesc *Desc
|
||||
|
||||
// ms... are memstats related.
|
||||
msLast *runtime.MemStats // Previously collected memstats.
|
||||
msLastTimestamp time.Time
|
||||
msMtx sync.Mutex // Protects msLast and msLastTimestamp.
|
||||
msMetrics memStatsMetrics
|
||||
msRead func(*runtime.MemStats) // For mocking in tests.
|
||||
msMaxWait time.Duration // Wait time for fresh memstats.
|
||||
msMaxAge time.Duration // Maximum allowed age of old memstats.
|
||||
}
|
||||
|
||||
// NewGoCollector returns a collector that exports metrics about the current Go
|
||||
// process. This includes memory stats. To collect those, runtime.ReadMemStats
|
||||
// is called. This requires to “stop the world”, which usually only happens for
|
||||
// garbage collection (GC). Take the following implications into account when
|
||||
// deciding whether to use the Go collector:
|
||||
//
|
||||
// 1. The performance impact of stopping the world is the more relevant the more
|
||||
// frequently metrics are collected. However, with Go1.9 or later the
|
||||
// stop-the-world time per metrics collection is very short (~25µs) so that the
|
||||
// performance impact will only matter in rare cases. However, with older Go
|
||||
// versions, the stop-the-world duration depends on the heap size and can be
|
||||
// quite significant (~1.7 ms/GiB as per
|
||||
// https://go-review.googlesource.com/c/go/+/34937).
|
||||
//
|
||||
// 2. During an ongoing GC, nothing else can stop the world. Therefore, if the
|
||||
// metrics collection happens to coincide with GC, it will only complete after
|
||||
// GC has finished. Usually, GC is fast enough to not cause problems. However,
|
||||
// with a very large heap, GC might take multiple seconds, which is enough to
|
||||
// cause scrape timeouts in common setups. To avoid this problem, the Go
|
||||
// collector will use the memstats from a previous collection if
|
||||
// runtime.ReadMemStats takes more than 1s. However, if there are no previously
|
||||
// collected memstats, or their collection is more than 5m ago, the collection
|
||||
// will block until runtime.ReadMemStats succeeds.
|
||||
//
|
||||
// NOTE: The problem is solved in Go 1.15, see
|
||||
// https://github.com/golang/go/issues/19812 for the related Go issue.
|
||||
func NewGoCollector() Collector {
|
||||
return &goCollector{
|
||||
goroutinesDesc: NewDesc(
|
||||
"go_goroutines",
|
||||
"Number of goroutines that currently exist.",
|
||||
nil, nil),
|
||||
threadsDesc: NewDesc(
|
||||
"go_threads",
|
||||
"Number of OS threads created.",
|
||||
nil, nil),
|
||||
gcDesc: NewDesc(
|
||||
"go_gc_duration_seconds",
|
||||
"A summary of the pause duration of garbage collection cycles.",
|
||||
nil, nil),
|
||||
goInfoDesc: NewDesc(
|
||||
"go_info",
|
||||
"Information about the Go environment.",
|
||||
nil, Labels{"version": runtime.Version()}),
|
||||
msLast: &runtime.MemStats{},
|
||||
msRead: runtime.ReadMemStats,
|
||||
msMaxWait: time.Second,
|
||||
msMaxAge: 5 * time.Minute,
|
||||
msMetrics: memStatsMetrics{
|
||||
{
|
||||
desc: NewDesc(
|
||||
memstatNamespace("alloc_bytes"),
|
||||
"Number of bytes allocated and still in use.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Alloc) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("alloc_bytes_total"),
|
||||
"Total number of bytes allocated, even if freed.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.TotalAlloc) },
|
||||
valType: CounterValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("sys_bytes"),
|
||||
"Number of bytes obtained from system.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Sys) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("lookups_total"),
|
||||
"Total number of pointer lookups.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Lookups) },
|
||||
valType: CounterValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("mallocs_total"),
|
||||
"Total number of mallocs.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Mallocs) },
|
||||
valType: CounterValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("frees_total"),
|
||||
"Total number of frees.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Frees) },
|
||||
valType: CounterValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("heap_alloc_bytes"),
|
||||
"Number of heap bytes allocated and still in use.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapAlloc) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("heap_sys_bytes"),
|
||||
"Number of heap bytes obtained from system.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapSys) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("heap_idle_bytes"),
|
||||
"Number of heap bytes waiting to be used.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapIdle) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("heap_inuse_bytes"),
|
||||
"Number of heap bytes that are in use.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapInuse) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("heap_released_bytes"),
|
||||
"Number of heap bytes released to OS.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapReleased) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("heap_objects"),
|
||||
"Number of allocated objects.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapObjects) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("stack_inuse_bytes"),
|
||||
"Number of bytes in use by the stack allocator.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.StackInuse) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("stack_sys_bytes"),
|
||||
"Number of bytes obtained from system for stack allocator.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.StackSys) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("mspan_inuse_bytes"),
|
||||
"Number of bytes in use by mspan structures.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MSpanInuse) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("mspan_sys_bytes"),
|
||||
"Number of bytes used for mspan structures obtained from system.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MSpanSys) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("mcache_inuse_bytes"),
|
||||
"Number of bytes in use by mcache structures.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MCacheInuse) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("mcache_sys_bytes"),
|
||||
"Number of bytes used for mcache structures obtained from system.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MCacheSys) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("buck_hash_sys_bytes"),
|
||||
"Number of bytes used by the profiling bucket hash table.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.BuckHashSys) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("gc_sys_bytes"),
|
||||
"Number of bytes used for garbage collection system metadata.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.GCSys) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("other_sys_bytes"),
|
||||
"Number of bytes used for other system allocations.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.OtherSys) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("next_gc_bytes"),
|
||||
"Number of heap bytes when next garbage collection will take place.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.NextGC) },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("last_gc_time_seconds"),
|
||||
"Number of seconds since 1970 of last garbage collection.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return float64(ms.LastGC) / 1e9 },
|
||||
valType: GaugeValue,
|
||||
}, {
|
||||
desc: NewDesc(
|
||||
memstatNamespace("gc_cpu_fraction"),
|
||||
"The fraction of this program's available CPU time used by the GC since the program started.",
|
||||
nil, nil,
|
||||
),
|
||||
eval: func(ms *runtime.MemStats) float64 { return ms.GCCPUFraction },
|
||||
valType: GaugeValue,
|
||||
},
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
func memstatNamespace(s string) string {
|
||||
return "go_memstats_" + s
|
||||
}
|
||||
|
||||
// Describe returns all descriptions of the collector.
|
||||
func (c *goCollector) Describe(ch chan<- *Desc) {
|
||||
ch <- c.goroutinesDesc
|
||||
ch <- c.threadsDesc
|
||||
ch <- c.gcDesc
|
||||
ch <- c.goInfoDesc
|
||||
for _, i := range c.msMetrics {
|
||||
ch <- i.desc
|
||||
}
|
||||
}
|
||||
|
||||
// Collect returns the current state of all metrics of the collector.
|
||||
func (c *goCollector) Collect(ch chan<- Metric) {
|
||||
var (
|
||||
ms = &runtime.MemStats{}
|
||||
done = make(chan struct{})
|
||||
)
|
||||
// Start reading memstats first as it might take a while.
|
||||
go func() {
|
||||
c.msRead(ms)
|
||||
c.msMtx.Lock()
|
||||
c.msLast = ms
|
||||
c.msLastTimestamp = time.Now()
|
||||
c.msMtx.Unlock()
|
||||
close(done)
|
||||
}()
|
||||
|
||||
ch <- MustNewConstMetric(c.goroutinesDesc, GaugeValue, float64(runtime.NumGoroutine()))
|
||||
n, _ := runtime.ThreadCreateProfile(nil)
|
||||
ch <- MustNewConstMetric(c.threadsDesc, GaugeValue, float64(n))
|
||||
|
||||
var stats debug.GCStats
|
||||
stats.PauseQuantiles = make([]time.Duration, 5)
|
||||
debug.ReadGCStats(&stats)
|
||||
|
||||
quantiles := make(map[float64]float64)
|
||||
for idx, pq := range stats.PauseQuantiles[1:] {
|
||||
quantiles[float64(idx+1)/float64(len(stats.PauseQuantiles)-1)] = pq.Seconds()
|
||||
}
|
||||
quantiles[0.0] = stats.PauseQuantiles[0].Seconds()
|
||||
ch <- MustNewConstSummary(c.gcDesc, uint64(stats.NumGC), stats.PauseTotal.Seconds(), quantiles)
|
||||
|
||||
ch <- MustNewConstMetric(c.goInfoDesc, GaugeValue, 1)
|
||||
|
||||
timer := time.NewTimer(c.msMaxWait)
|
||||
select {
|
||||
case <-done: // Our own ReadMemStats succeeded in time. Use it.
|
||||
timer.Stop() // Important for high collection frequencies to not pile up timers.
|
||||
c.msCollect(ch, ms)
|
||||
return
|
||||
case <-timer.C: // Time out, use last memstats if possible. Continue below.
|
||||
}
|
||||
c.msMtx.Lock()
|
||||
if time.Since(c.msLastTimestamp) < c.msMaxAge {
|
||||
// Last memstats are recent enough. Collect from them under the lock.
|
||||
c.msCollect(ch, c.msLast)
|
||||
c.msMtx.Unlock()
|
||||
return
|
||||
}
|
||||
// If we are here, the last memstats are too old or don't exist. We have
|
||||
// to wait until our own ReadMemStats finally completes. For that to
|
||||
// happen, we have to release the lock.
|
||||
c.msMtx.Unlock()
|
||||
<-done
|
||||
c.msCollect(ch, ms)
|
||||
}
|
||||
|
||||
func (c *goCollector) msCollect(ch chan<- Metric, ms *runtime.MemStats) {
|
||||
for _, i := range c.msMetrics {
|
||||
ch <- MustNewConstMetric(i.desc, i.valType, i.eval(ms))
|
||||
}
|
||||
}
|
||||
|
||||
// memStatsMetrics provide description, value, and value type for memstat metrics.
|
||||
type memStatsMetrics []struct {
|
||||
desc *Desc
|
||||
eval func(*runtime.MemStats) float64
|
||||
valType ValueType
|
||||
}
|
||||
|
||||
// NewBuildInfoCollector returns a collector collecting a single metric
|
||||
// "go_build_info" with the constant value 1 and three labels "path", "version",
|
||||
// and "checksum". Their label values contain the main module path, version, and
|
||||
// checksum, respectively. The labels will only have meaningful values if the
|
||||
// binary is built with Go module support and from source code retrieved from
|
||||
// the source repository (rather than the local file system). This is usually
|
||||
// accomplished by building from outside of GOPATH, specifying the full address
|
||||
// of the main package, e.g. "GO111MODULE=on go run
|
||||
// github.com/prometheus/client_golang/examples/random". If built without Go
|
||||
// module support, all label values will be "unknown". If built with Go module
|
||||
// support but using the source code from the local file system, the "path" will
|
||||
// be set appropriately, but "checksum" will be empty and "version" will be
|
||||
// "(devel)".
|
||||
//
|
||||
// This collector uses only the build information for the main module. See
|
||||
// https://github.com/povilasv/prommod for an example of a collector for the
|
||||
// module dependencies.
|
||||
func NewBuildInfoCollector() Collector {
|
||||
path, version, sum := "unknown", "unknown", "unknown"
|
||||
if bi, ok := debug.ReadBuildInfo(); ok {
|
||||
path = bi.Main.Path
|
||||
version = bi.Main.Version
|
||||
sum = bi.Main.Sum
|
||||
}
|
||||
c := &selfCollector{MustNewConstMetric(
|
||||
NewDesc(
|
||||
"go_build_info",
|
||||
"Build information about the main Go module.",
|
||||
nil, Labels{"path": path, "version": version, "checksum": sum},
|
||||
),
|
||||
GaugeValue, 1)}
|
||||
c.init(c.self)
|
||||
return c
|
||||
}
|
637
vendor/github.com/prometheus/client_golang/prometheus/histogram.go
generated
vendored
Normal file
637
vendor/github.com/prometheus/client_golang/prometheus/histogram.go
generated
vendored
Normal file
@ -0,0 +1,637 @@
|
||||
// Copyright 2015 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"runtime"
|
||||
"sort"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
|
||||
"github.com/golang/protobuf/proto"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// A Histogram counts individual observations from an event or sample stream in
|
||||
// configurable buckets. Similar to a summary, it also provides a sum of
|
||||
// observations and an observation count.
|
||||
//
|
||||
// On the Prometheus server, quantiles can be calculated from a Histogram using
|
||||
// the histogram_quantile function in the query language.
|
||||
//
|
||||
// Note that Histograms, in contrast to Summaries, can be aggregated with the
|
||||
// Prometheus query language (see the documentation for detailed
|
||||
// procedures). However, Histograms require the user to pre-define suitable
|
||||
// buckets, and they are in general less accurate. The Observe method of a
|
||||
// Histogram has a very low performance overhead in comparison with the Observe
|
||||
// method of a Summary.
|
||||
//
|
||||
// To create Histogram instances, use NewHistogram.
|
||||
type Histogram interface {
|
||||
Metric
|
||||
Collector
|
||||
|
||||
// Observe adds a single observation to the histogram.
|
||||
Observe(float64)
|
||||
}
|
||||
|
||||
// bucketLabel is used for the label that defines the upper bound of a
|
||||
// bucket of a histogram ("le" -> "less or equal").
|
||||
const bucketLabel = "le"
|
||||
|
||||
// DefBuckets are the default Histogram buckets. The default buckets are
|
||||
// tailored to broadly measure the response time (in seconds) of a network
|
||||
// service. Most likely, however, you will be required to define buckets
|
||||
// customized to your use case.
|
||||
var (
|
||||
DefBuckets = []float64{.005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10}
|
||||
|
||||
errBucketLabelNotAllowed = fmt.Errorf(
|
||||
"%q is not allowed as label name in histograms", bucketLabel,
|
||||
)
|
||||
)
|
||||
|
||||
// LinearBuckets creates 'count' buckets, each 'width' wide, where the lowest
|
||||
// bucket has an upper bound of 'start'. The final +Inf bucket is not counted
|
||||
// and not included in the returned slice. The returned slice is meant to be
|
||||
// used for the Buckets field of HistogramOpts.
|
||||
//
|
||||
// The function panics if 'count' is zero or negative.
|
||||
func LinearBuckets(start, width float64, count int) []float64 {
|
||||
if count < 1 {
|
||||
panic("LinearBuckets needs a positive count")
|
||||
}
|
||||
buckets := make([]float64, count)
|
||||
for i := range buckets {
|
||||
buckets[i] = start
|
||||
start += width
|
||||
}
|
||||
return buckets
|
||||
}
|
||||
|
||||
// ExponentialBuckets creates 'count' buckets, where the lowest bucket has an
|
||||
// upper bound of 'start' and each following bucket's upper bound is 'factor'
|
||||
// times the previous bucket's upper bound. The final +Inf bucket is not counted
|
||||
// and not included in the returned slice. The returned slice is meant to be
|
||||
// used for the Buckets field of HistogramOpts.
|
||||
//
|
||||
// The function panics if 'count' is 0 or negative, if 'start' is 0 or negative,
|
||||
// or if 'factor' is less than or equal 1.
|
||||
func ExponentialBuckets(start, factor float64, count int) []float64 {
|
||||
if count < 1 {
|
||||
panic("ExponentialBuckets needs a positive count")
|
||||
}
|
||||
if start <= 0 {
|
||||
panic("ExponentialBuckets needs a positive start value")
|
||||
}
|
||||
if factor <= 1 {
|
||||
panic("ExponentialBuckets needs a factor greater than 1")
|
||||
}
|
||||
buckets := make([]float64, count)
|
||||
for i := range buckets {
|
||||
buckets[i] = start
|
||||
start *= factor
|
||||
}
|
||||
return buckets
|
||||
}
|
||||
|
||||
// HistogramOpts bundles the options for creating a Histogram metric. It is
|
||||
// mandatory to set Name to a non-empty string. All other fields are optional
|
||||
// and can safely be left at their zero value, although it is strongly
|
||||
// encouraged to set a Help string.
|
||||
type HistogramOpts struct {
|
||||
// Namespace, Subsystem, and Name are components of the fully-qualified
|
||||
// name of the Histogram (created by joining these components with
|
||||
// "_"). Only Name is mandatory, the others merely help structuring the
|
||||
// name. Note that the fully-qualified name of the Histogram must be a
|
||||
// valid Prometheus metric name.
|
||||
Namespace string
|
||||
Subsystem string
|
||||
Name string
|
||||
|
||||
// Help provides information about this Histogram.
|
||||
//
|
||||
// Metrics with the same fully-qualified name must have the same Help
|
||||
// string.
|
||||
Help string
|
||||
|
||||
// ConstLabels are used to attach fixed labels to this metric. Metrics
|
||||
// with the same fully-qualified name must have the same label names in
|
||||
// their ConstLabels.
|
||||
//
|
||||
// ConstLabels are only used rarely. In particular, do not use them to
|
||||
// attach the same labels to all your metrics. Those use cases are
|
||||
// better covered by target labels set by the scraping Prometheus
|
||||
// server, or by one specific metric (e.g. a build_info or a
|
||||
// machine_role metric). See also
|
||||
// https://prometheus.io/docs/instrumenting/writing_exporters/#target-labels-not-static-scraped-labels
|
||||
ConstLabels Labels
|
||||
|
||||
// Buckets defines the buckets into which observations are counted. Each
|
||||
// element in the slice is the upper inclusive bound of a bucket. The
|
||||
// values must be sorted in strictly increasing order. There is no need
|
||||
// to add a highest bucket with +Inf bound, it will be added
|
||||
// implicitly. The default value is DefBuckets.
|
||||
Buckets []float64
|
||||
}
|
||||
|
||||
// NewHistogram creates a new Histogram based on the provided HistogramOpts. It
|
||||
// panics if the buckets in HistogramOpts are not in strictly increasing order.
|
||||
//
|
||||
// The returned implementation also implements ExemplarObserver. It is safe to
|
||||
// perform the corresponding type assertion. Exemplars are tracked separately
|
||||
// for each bucket.
|
||||
func NewHistogram(opts HistogramOpts) Histogram {
|
||||
return newHistogram(
|
||||
NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
nil,
|
||||
opts.ConstLabels,
|
||||
),
|
||||
opts,
|
||||
)
|
||||
}
|
||||
|
||||
func newHistogram(desc *Desc, opts HistogramOpts, labelValues ...string) Histogram {
|
||||
if len(desc.variableLabels) != len(labelValues) {
|
||||
panic(makeInconsistentCardinalityError(desc.fqName, desc.variableLabels, labelValues))
|
||||
}
|
||||
|
||||
for _, n := range desc.variableLabels {
|
||||
if n == bucketLabel {
|
||||
panic(errBucketLabelNotAllowed)
|
||||
}
|
||||
}
|
||||
for _, lp := range desc.constLabelPairs {
|
||||
if lp.GetName() == bucketLabel {
|
||||
panic(errBucketLabelNotAllowed)
|
||||
}
|
||||
}
|
||||
|
||||
if len(opts.Buckets) == 0 {
|
||||
opts.Buckets = DefBuckets
|
||||
}
|
||||
|
||||
h := &histogram{
|
||||
desc: desc,
|
||||
upperBounds: opts.Buckets,
|
||||
labelPairs: MakeLabelPairs(desc, labelValues),
|
||||
counts: [2]*histogramCounts{{}, {}},
|
||||
now: time.Now,
|
||||
}
|
||||
for i, upperBound := range h.upperBounds {
|
||||
if i < len(h.upperBounds)-1 {
|
||||
if upperBound >= h.upperBounds[i+1] {
|
||||
panic(fmt.Errorf(
|
||||
"histogram buckets must be in increasing order: %f >= %f",
|
||||
upperBound, h.upperBounds[i+1],
|
||||
))
|
||||
}
|
||||
} else {
|
||||
if math.IsInf(upperBound, +1) {
|
||||
// The +Inf bucket is implicit. Remove it here.
|
||||
h.upperBounds = h.upperBounds[:i]
|
||||
}
|
||||
}
|
||||
}
|
||||
// Finally we know the final length of h.upperBounds and can make buckets
|
||||
// for both counts as well as exemplars:
|
||||
h.counts[0].buckets = make([]uint64, len(h.upperBounds))
|
||||
h.counts[1].buckets = make([]uint64, len(h.upperBounds))
|
||||
h.exemplars = make([]atomic.Value, len(h.upperBounds)+1)
|
||||
|
||||
h.init(h) // Init self-collection.
|
||||
return h
|
||||
}
|
||||
|
||||
type histogramCounts struct {
|
||||
// sumBits contains the bits of the float64 representing the sum of all
|
||||
// observations. sumBits and count have to go first in the struct to
|
||||
// guarantee alignment for atomic operations.
|
||||
// http://golang.org/pkg/sync/atomic/#pkg-note-BUG
|
||||
sumBits uint64
|
||||
count uint64
|
||||
buckets []uint64
|
||||
}
|
||||
|
||||
type histogram struct {
|
||||
// countAndHotIdx enables lock-free writes with use of atomic updates.
|
||||
// The most significant bit is the hot index [0 or 1] of the count field
|
||||
// below. Observe calls update the hot one. All remaining bits count the
|
||||
// number of Observe calls. Observe starts by incrementing this counter,
|
||||
// and finish by incrementing the count field in the respective
|
||||
// histogramCounts, as a marker for completion.
|
||||
//
|
||||
// Calls of the Write method (which are non-mutating reads from the
|
||||
// perspective of the histogram) swap the hot–cold under the writeMtx
|
||||
// lock. A cooldown is awaited (while locked) by comparing the number of
|
||||
// observations with the initiation count. Once they match, then the
|
||||
// last observation on the now cool one has completed. All cool fields must
|
||||
// be merged into the new hot before releasing writeMtx.
|
||||
//
|
||||
// Fields with atomic access first! See alignment constraint:
|
||||
// http://golang.org/pkg/sync/atomic/#pkg-note-BUG
|
||||
countAndHotIdx uint64
|
||||
|
||||
selfCollector
|
||||
desc *Desc
|
||||
writeMtx sync.Mutex // Only used in the Write method.
|
||||
|
||||
// Two counts, one is "hot" for lock-free observations, the other is
|
||||
// "cold" for writing out a dto.Metric. It has to be an array of
|
||||
// pointers to guarantee 64bit alignment of the histogramCounts, see
|
||||
// http://golang.org/pkg/sync/atomic/#pkg-note-BUG.
|
||||
counts [2]*histogramCounts
|
||||
|
||||
upperBounds []float64
|
||||
labelPairs []*dto.LabelPair
|
||||
exemplars []atomic.Value // One more than buckets (to include +Inf), each a *dto.Exemplar.
|
||||
|
||||
now func() time.Time // To mock out time.Now() for testing.
|
||||
}
|
||||
|
||||
func (h *histogram) Desc() *Desc {
|
||||
return h.desc
|
||||
}
|
||||
|
||||
func (h *histogram) Observe(v float64) {
|
||||
h.observe(v, h.findBucket(v))
|
||||
}
|
||||
|
||||
func (h *histogram) ObserveWithExemplar(v float64, e Labels) {
|
||||
i := h.findBucket(v)
|
||||
h.observe(v, i)
|
||||
h.updateExemplar(v, i, e)
|
||||
}
|
||||
|
||||
func (h *histogram) Write(out *dto.Metric) error {
|
||||
// For simplicity, we protect this whole method by a mutex. It is not in
|
||||
// the hot path, i.e. Observe is called much more often than Write. The
|
||||
// complication of making Write lock-free isn't worth it, if possible at
|
||||
// all.
|
||||
h.writeMtx.Lock()
|
||||
defer h.writeMtx.Unlock()
|
||||
|
||||
// Adding 1<<63 switches the hot index (from 0 to 1 or from 1 to 0)
|
||||
// without touching the count bits. See the struct comments for a full
|
||||
// description of the algorithm.
|
||||
n := atomic.AddUint64(&h.countAndHotIdx, 1<<63)
|
||||
// count is contained unchanged in the lower 63 bits.
|
||||
count := n & ((1 << 63) - 1)
|
||||
// The most significant bit tells us which counts is hot. The complement
|
||||
// is thus the cold one.
|
||||
hotCounts := h.counts[n>>63]
|
||||
coldCounts := h.counts[(^n)>>63]
|
||||
|
||||
// Await cooldown.
|
||||
for count != atomic.LoadUint64(&coldCounts.count) {
|
||||
runtime.Gosched() // Let observations get work done.
|
||||
}
|
||||
|
||||
his := &dto.Histogram{
|
||||
Bucket: make([]*dto.Bucket, len(h.upperBounds)),
|
||||
SampleCount: proto.Uint64(count),
|
||||
SampleSum: proto.Float64(math.Float64frombits(atomic.LoadUint64(&coldCounts.sumBits))),
|
||||
}
|
||||
var cumCount uint64
|
||||
for i, upperBound := range h.upperBounds {
|
||||
cumCount += atomic.LoadUint64(&coldCounts.buckets[i])
|
||||
his.Bucket[i] = &dto.Bucket{
|
||||
CumulativeCount: proto.Uint64(cumCount),
|
||||
UpperBound: proto.Float64(upperBound),
|
||||
}
|
||||
if e := h.exemplars[i].Load(); e != nil {
|
||||
his.Bucket[i].Exemplar = e.(*dto.Exemplar)
|
||||
}
|
||||
}
|
||||
// If there is an exemplar for the +Inf bucket, we have to add that bucket explicitly.
|
||||
if e := h.exemplars[len(h.upperBounds)].Load(); e != nil {
|
||||
b := &dto.Bucket{
|
||||
CumulativeCount: proto.Uint64(count),
|
||||
UpperBound: proto.Float64(math.Inf(1)),
|
||||
Exemplar: e.(*dto.Exemplar),
|
||||
}
|
||||
his.Bucket = append(his.Bucket, b)
|
||||
}
|
||||
|
||||
out.Histogram = his
|
||||
out.Label = h.labelPairs
|
||||
|
||||
// Finally add all the cold counts to the new hot counts and reset the cold counts.
|
||||
atomic.AddUint64(&hotCounts.count, count)
|
||||
atomic.StoreUint64(&coldCounts.count, 0)
|
||||
for {
|
||||
oldBits := atomic.LoadUint64(&hotCounts.sumBits)
|
||||
newBits := math.Float64bits(math.Float64frombits(oldBits) + his.GetSampleSum())
|
||||
if atomic.CompareAndSwapUint64(&hotCounts.sumBits, oldBits, newBits) {
|
||||
atomic.StoreUint64(&coldCounts.sumBits, 0)
|
||||
break
|
||||
}
|
||||
}
|
||||
for i := range h.upperBounds {
|
||||
atomic.AddUint64(&hotCounts.buckets[i], atomic.LoadUint64(&coldCounts.buckets[i]))
|
||||
atomic.StoreUint64(&coldCounts.buckets[i], 0)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// findBucket returns the index of the bucket for the provided value, or
|
||||
// len(h.upperBounds) for the +Inf bucket.
|
||||
func (h *histogram) findBucket(v float64) int {
|
||||
// TODO(beorn7): For small numbers of buckets (<30), a linear search is
|
||||
// slightly faster than the binary search. If we really care, we could
|
||||
// switch from one search strategy to the other depending on the number
|
||||
// of buckets.
|
||||
//
|
||||
// Microbenchmarks (BenchmarkHistogramNoLabels):
|
||||
// 11 buckets: 38.3 ns/op linear - binary 48.7 ns/op
|
||||
// 100 buckets: 78.1 ns/op linear - binary 54.9 ns/op
|
||||
// 300 buckets: 154 ns/op linear - binary 61.6 ns/op
|
||||
return sort.SearchFloat64s(h.upperBounds, v)
|
||||
}
|
||||
|
||||
// observe is the implementation for Observe without the findBucket part.
|
||||
func (h *histogram) observe(v float64, bucket int) {
|
||||
// We increment h.countAndHotIdx so that the counter in the lower
|
||||
// 63 bits gets incremented. At the same time, we get the new value
|
||||
// back, which we can use to find the currently-hot counts.
|
||||
n := atomic.AddUint64(&h.countAndHotIdx, 1)
|
||||
hotCounts := h.counts[n>>63]
|
||||
|
||||
if bucket < len(h.upperBounds) {
|
||||
atomic.AddUint64(&hotCounts.buckets[bucket], 1)
|
||||
}
|
||||
for {
|
||||
oldBits := atomic.LoadUint64(&hotCounts.sumBits)
|
||||
newBits := math.Float64bits(math.Float64frombits(oldBits) + v)
|
||||
if atomic.CompareAndSwapUint64(&hotCounts.sumBits, oldBits, newBits) {
|
||||
break
|
||||
}
|
||||
}
|
||||
// Increment count last as we take it as a signal that the observation
|
||||
// is complete.
|
||||
atomic.AddUint64(&hotCounts.count, 1)
|
||||
}
|
||||
|
||||
// updateExemplar replaces the exemplar for the provided bucket. With empty
|
||||
// labels, it's a no-op. It panics if any of the labels is invalid.
|
||||
func (h *histogram) updateExemplar(v float64, bucket int, l Labels) {
|
||||
if l == nil {
|
||||
return
|
||||
}
|
||||
e, err := newExemplar(v, h.now(), l)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
h.exemplars[bucket].Store(e)
|
||||
}
|
||||
|
||||
// HistogramVec is a Collector that bundles a set of Histograms that all share the
|
||||
// same Desc, but have different values for their variable labels. This is used
|
||||
// if you want to count the same thing partitioned by various dimensions
|
||||
// (e.g. HTTP request latencies, partitioned by status code and method). Create
|
||||
// instances with NewHistogramVec.
|
||||
type HistogramVec struct {
|
||||
*MetricVec
|
||||
}
|
||||
|
||||
// NewHistogramVec creates a new HistogramVec based on the provided HistogramOpts and
|
||||
// partitioned by the given label names.
|
||||
func NewHistogramVec(opts HistogramOpts, labelNames []string) *HistogramVec {
|
||||
desc := NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
labelNames,
|
||||
opts.ConstLabels,
|
||||
)
|
||||
return &HistogramVec{
|
||||
MetricVec: NewMetricVec(desc, func(lvs ...string) Metric {
|
||||
return newHistogram(desc, opts, lvs...)
|
||||
}),
|
||||
}
|
||||
}
|
||||
|
||||
// GetMetricWithLabelValues returns the Histogram for the given slice of label
|
||||
// values (same order as the variable labels in Desc). If that combination of
|
||||
// label values is accessed for the first time, a new Histogram is created.
|
||||
//
|
||||
// It is possible to call this method without using the returned Histogram to only
|
||||
// create the new Histogram but leave it at its starting value, a Histogram without
|
||||
// any observations.
|
||||
//
|
||||
// Keeping the Histogram for later use is possible (and should be considered if
|
||||
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
|
||||
// Delete can be used to delete the Histogram from the HistogramVec. In that case, the
|
||||
// Histogram will still exist, but it will not be exported anymore, even if a
|
||||
// Histogram with the same label values is created later. See also the CounterVec
|
||||
// example.
|
||||
//
|
||||
// An error is returned if the number of label values is not the same as the
|
||||
// number of variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// Note that for more than one label value, this method is prone to mistakes
|
||||
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
|
||||
// an alternative to avoid that type of mistake. For higher label numbers, the
|
||||
// latter has a much more readable (albeit more verbose) syntax, but it comes
|
||||
// with a performance overhead (for creating and processing the Labels map).
|
||||
// See also the GaugeVec example.
|
||||
func (v *HistogramVec) GetMetricWithLabelValues(lvs ...string) (Observer, error) {
|
||||
metric, err := v.MetricVec.GetMetricWithLabelValues(lvs...)
|
||||
if metric != nil {
|
||||
return metric.(Observer), err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// GetMetricWith returns the Histogram for the given Labels map (the label names
|
||||
// must match those of the variable labels in Desc). If that label map is
|
||||
// accessed for the first time, a new Histogram is created. Implications of
|
||||
// creating a Histogram without using it and keeping the Histogram for later use
|
||||
// are the same as for GetMetricWithLabelValues.
|
||||
//
|
||||
// An error is returned if the number and names of the Labels are inconsistent
|
||||
// with those of the variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// This method is used for the same purpose as
|
||||
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
|
||||
// methods.
|
||||
func (v *HistogramVec) GetMetricWith(labels Labels) (Observer, error) {
|
||||
metric, err := v.MetricVec.GetMetricWith(labels)
|
||||
if metric != nil {
|
||||
return metric.(Observer), err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// WithLabelValues works as GetMetricWithLabelValues, but panics where
|
||||
// GetMetricWithLabelValues would have returned an error. Not returning an
|
||||
// error allows shortcuts like
|
||||
// myVec.WithLabelValues("404", "GET").Observe(42.21)
|
||||
func (v *HistogramVec) WithLabelValues(lvs ...string) Observer {
|
||||
h, err := v.GetMetricWithLabelValues(lvs...)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return h
|
||||
}
|
||||
|
||||
// With works as GetMetricWith but panics where GetMetricWithLabels would have
|
||||
// returned an error. Not returning an error allows shortcuts like
|
||||
// myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Observe(42.21)
|
||||
func (v *HistogramVec) With(labels Labels) Observer {
|
||||
h, err := v.GetMetricWith(labels)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return h
|
||||
}
|
||||
|
||||
// CurryWith returns a vector curried with the provided labels, i.e. the
|
||||
// returned vector has those labels pre-set for all labeled operations performed
|
||||
// on it. The cardinality of the curried vector is reduced accordingly. The
|
||||
// order of the remaining labels stays the same (just with the curried labels
|
||||
// taken out of the sequence – which is relevant for the
|
||||
// (GetMetric)WithLabelValues methods). It is possible to curry a curried
|
||||
// vector, but only with labels not yet used for currying before.
|
||||
//
|
||||
// The metrics contained in the HistogramVec are shared between the curried and
|
||||
// uncurried vectors. They are just accessed differently. Curried and uncurried
|
||||
// vectors behave identically in terms of collection. Only one must be
|
||||
// registered with a given registry (usually the uncurried version). The Reset
|
||||
// method deletes all metrics, even if called on a curried vector.
|
||||
func (v *HistogramVec) CurryWith(labels Labels) (ObserverVec, error) {
|
||||
vec, err := v.MetricVec.CurryWith(labels)
|
||||
if vec != nil {
|
||||
return &HistogramVec{vec}, err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// MustCurryWith works as CurryWith but panics where CurryWith would have
|
||||
// returned an error.
|
||||
func (v *HistogramVec) MustCurryWith(labels Labels) ObserverVec {
|
||||
vec, err := v.CurryWith(labels)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return vec
|
||||
}
|
||||
|
||||
type constHistogram struct {
|
||||
desc *Desc
|
||||
count uint64
|
||||
sum float64
|
||||
buckets map[float64]uint64
|
||||
labelPairs []*dto.LabelPair
|
||||
}
|
||||
|
||||
func (h *constHistogram) Desc() *Desc {
|
||||
return h.desc
|
||||
}
|
||||
|
||||
func (h *constHistogram) Write(out *dto.Metric) error {
|
||||
his := &dto.Histogram{}
|
||||
buckets := make([]*dto.Bucket, 0, len(h.buckets))
|
||||
|
||||
his.SampleCount = proto.Uint64(h.count)
|
||||
his.SampleSum = proto.Float64(h.sum)
|
||||
|
||||
for upperBound, count := range h.buckets {
|
||||
buckets = append(buckets, &dto.Bucket{
|
||||
CumulativeCount: proto.Uint64(count),
|
||||
UpperBound: proto.Float64(upperBound),
|
||||
})
|
||||
}
|
||||
|
||||
if len(buckets) > 0 {
|
||||
sort.Sort(buckSort(buckets))
|
||||
}
|
||||
his.Bucket = buckets
|
||||
|
||||
out.Histogram = his
|
||||
out.Label = h.labelPairs
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// NewConstHistogram returns a metric representing a Prometheus histogram with
|
||||
// fixed values for the count, sum, and bucket counts. As those parameters
|
||||
// cannot be changed, the returned value does not implement the Histogram
|
||||
// interface (but only the Metric interface). Users of this package will not
|
||||
// have much use for it in regular operations. However, when implementing custom
|
||||
// Collectors, it is useful as a throw-away metric that is generated on the fly
|
||||
// to send it to Prometheus in the Collect method.
|
||||
//
|
||||
// buckets is a map of upper bounds to cumulative counts, excluding the +Inf
|
||||
// bucket.
|
||||
//
|
||||
// NewConstHistogram returns an error if the length of labelValues is not
|
||||
// consistent with the variable labels in Desc or if Desc is invalid.
|
||||
func NewConstHistogram(
|
||||
desc *Desc,
|
||||
count uint64,
|
||||
sum float64,
|
||||
buckets map[float64]uint64,
|
||||
labelValues ...string,
|
||||
) (Metric, error) {
|
||||
if desc.err != nil {
|
||||
return nil, desc.err
|
||||
}
|
||||
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &constHistogram{
|
||||
desc: desc,
|
||||
count: count,
|
||||
sum: sum,
|
||||
buckets: buckets,
|
||||
labelPairs: MakeLabelPairs(desc, labelValues),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// MustNewConstHistogram is a version of NewConstHistogram that panics where
|
||||
// NewConstHistogram would have returned an error.
|
||||
func MustNewConstHistogram(
|
||||
desc *Desc,
|
||||
count uint64,
|
||||
sum float64,
|
||||
buckets map[float64]uint64,
|
||||
labelValues ...string,
|
||||
) Metric {
|
||||
m, err := NewConstHistogram(desc, count, sum, buckets, labelValues...)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
type buckSort []*dto.Bucket
|
||||
|
||||
func (s buckSort) Len() int {
|
||||
return len(s)
|
||||
}
|
||||
|
||||
func (s buckSort) Swap(i, j int) {
|
||||
s[i], s[j] = s[j], s[i]
|
||||
}
|
||||
|
||||
func (s buckSort) Less(i, j int) bool {
|
||||
return s[i].GetUpperBound() < s[j].GetUpperBound()
|
||||
}
|
85
vendor/github.com/prometheus/client_golang/prometheus/internal/metric.go
generated
vendored
Normal file
85
vendor/github.com/prometheus/client_golang/prometheus/internal/metric.go
generated
vendored
Normal file
@ -0,0 +1,85 @@
|
||||
// Copyright 2018 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package internal
|
||||
|
||||
import (
|
||||
"sort"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// metricSorter is a sortable slice of *dto.Metric.
|
||||
type metricSorter []*dto.Metric
|
||||
|
||||
func (s metricSorter) Len() int {
|
||||
return len(s)
|
||||
}
|
||||
|
||||
func (s metricSorter) Swap(i, j int) {
|
||||
s[i], s[j] = s[j], s[i]
|
||||
}
|
||||
|
||||
func (s metricSorter) Less(i, j int) bool {
|
||||
if len(s[i].Label) != len(s[j].Label) {
|
||||
// This should not happen. The metrics are
|
||||
// inconsistent. However, we have to deal with the fact, as
|
||||
// people might use custom collectors or metric family injection
|
||||
// to create inconsistent metrics. So let's simply compare the
|
||||
// number of labels in this case. That will still yield
|
||||
// reproducible sorting.
|
||||
return len(s[i].Label) < len(s[j].Label)
|
||||
}
|
||||
for n, lp := range s[i].Label {
|
||||
vi := lp.GetValue()
|
||||
vj := s[j].Label[n].GetValue()
|
||||
if vi != vj {
|
||||
return vi < vj
|
||||
}
|
||||
}
|
||||
|
||||
// We should never arrive here. Multiple metrics with the same
|
||||
// label set in the same scrape will lead to undefined ingestion
|
||||
// behavior. However, as above, we have to provide stable sorting
|
||||
// here, even for inconsistent metrics. So sort equal metrics
|
||||
// by their timestamp, with missing timestamps (implying "now")
|
||||
// coming last.
|
||||
if s[i].TimestampMs == nil {
|
||||
return false
|
||||
}
|
||||
if s[j].TimestampMs == nil {
|
||||
return true
|
||||
}
|
||||
return s[i].GetTimestampMs() < s[j].GetTimestampMs()
|
||||
}
|
||||
|
||||
// NormalizeMetricFamilies returns a MetricFamily slice with empty
|
||||
// MetricFamilies pruned and the remaining MetricFamilies sorted by name within
|
||||
// the slice, with the contained Metrics sorted within each MetricFamily.
|
||||
func NormalizeMetricFamilies(metricFamiliesByName map[string]*dto.MetricFamily) []*dto.MetricFamily {
|
||||
for _, mf := range metricFamiliesByName {
|
||||
sort.Sort(metricSorter(mf.Metric))
|
||||
}
|
||||
names := make([]string, 0, len(metricFamiliesByName))
|
||||
for name, mf := range metricFamiliesByName {
|
||||
if len(mf.Metric) > 0 {
|
||||
names = append(names, name)
|
||||
}
|
||||
}
|
||||
sort.Strings(names)
|
||||
result := make([]*dto.MetricFamily, 0, len(names))
|
||||
for _, name := range names {
|
||||
result = append(result, metricFamiliesByName[name])
|
||||
}
|
||||
return result
|
||||
}
|
87
vendor/github.com/prometheus/client_golang/prometheus/labels.go
generated
vendored
Normal file
87
vendor/github.com/prometheus/client_golang/prometheus/labels.go
generated
vendored
Normal file
@ -0,0 +1,87 @@
|
||||
// Copyright 2018 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
|
||||
"github.com/prometheus/common/model"
|
||||
)
|
||||
|
||||
// Labels represents a collection of label name -> value mappings. This type is
|
||||
// commonly used with the With(Labels) and GetMetricWith(Labels) methods of
|
||||
// metric vector Collectors, e.g.:
|
||||
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
|
||||
//
|
||||
// The other use-case is the specification of constant label pairs in Opts or to
|
||||
// create a Desc.
|
||||
type Labels map[string]string
|
||||
|
||||
// reservedLabelPrefix is a prefix which is not legal in user-supplied
|
||||
// label names.
|
||||
const reservedLabelPrefix = "__"
|
||||
|
||||
var errInconsistentCardinality = errors.New("inconsistent label cardinality")
|
||||
|
||||
func makeInconsistentCardinalityError(fqName string, labels, labelValues []string) error {
|
||||
return fmt.Errorf(
|
||||
"%s: %q has %d variable labels named %q but %d values %q were provided",
|
||||
errInconsistentCardinality, fqName,
|
||||
len(labels), labels,
|
||||
len(labelValues), labelValues,
|
||||
)
|
||||
}
|
||||
|
||||
func validateValuesInLabels(labels Labels, expectedNumberOfValues int) error {
|
||||
if len(labels) != expectedNumberOfValues {
|
||||
return fmt.Errorf(
|
||||
"%s: expected %d label values but got %d in %#v",
|
||||
errInconsistentCardinality, expectedNumberOfValues,
|
||||
len(labels), labels,
|
||||
)
|
||||
}
|
||||
|
||||
for name, val := range labels {
|
||||
if !utf8.ValidString(val) {
|
||||
return fmt.Errorf("label %s: value %q is not valid UTF-8", name, val)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func validateLabelValues(vals []string, expectedNumberOfValues int) error {
|
||||
if len(vals) != expectedNumberOfValues {
|
||||
return fmt.Errorf(
|
||||
"%s: expected %d label values but got %d in %#v",
|
||||
errInconsistentCardinality, expectedNumberOfValues,
|
||||
len(vals), vals,
|
||||
)
|
||||
}
|
||||
|
||||
for _, val := range vals {
|
||||
if !utf8.ValidString(val) {
|
||||
return fmt.Errorf("label value %q is not valid UTF-8", val)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func checkLabelName(l string) bool {
|
||||
return model.LabelName(l).IsValid() && !strings.HasPrefix(l, reservedLabelPrefix)
|
||||
}
|
176
vendor/github.com/prometheus/client_golang/prometheus/metric.go
generated
vendored
Normal file
176
vendor/github.com/prometheus/client_golang/prometheus/metric.go
generated
vendored
Normal file
@ -0,0 +1,176 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
|
||||
"github.com/golang/protobuf/proto"
|
||||
"github.com/prometheus/common/model"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
var separatorByteSlice = []byte{model.SeparatorByte} // For convenient use with xxhash.
|
||||
|
||||
// A Metric models a single sample value with its meta data being exported to
|
||||
// Prometheus. Implementations of Metric in this package are Gauge, Counter,
|
||||
// Histogram, Summary, and Untyped.
|
||||
type Metric interface {
|
||||
// Desc returns the descriptor for the Metric. This method idempotently
|
||||
// returns the same descriptor throughout the lifetime of the
|
||||
// Metric. The returned descriptor is immutable by contract. A Metric
|
||||
// unable to describe itself must return an invalid descriptor (created
|
||||
// with NewInvalidDesc).
|
||||
Desc() *Desc
|
||||
// Write encodes the Metric into a "Metric" Protocol Buffer data
|
||||
// transmission object.
|
||||
//
|
||||
// Metric implementations must observe concurrency safety as reads of
|
||||
// this metric may occur at any time, and any blocking occurs at the
|
||||
// expense of total performance of rendering all registered
|
||||
// metrics. Ideally, Metric implementations should support concurrent
|
||||
// readers.
|
||||
//
|
||||
// While populating dto.Metric, it is the responsibility of the
|
||||
// implementation to ensure validity of the Metric protobuf (like valid
|
||||
// UTF-8 strings or syntactically valid metric and label names). It is
|
||||
// recommended to sort labels lexicographically. Callers of Write should
|
||||
// still make sure of sorting if they depend on it.
|
||||
Write(*dto.Metric) error
|
||||
// TODO(beorn7): The original rationale of passing in a pre-allocated
|
||||
// dto.Metric protobuf to save allocations has disappeared. The
|
||||
// signature of this method should be changed to "Write() (*dto.Metric,
|
||||
// error)".
|
||||
}
|
||||
|
||||
// Opts bundles the options for creating most Metric types. Each metric
|
||||
// implementation XXX has its own XXXOpts type, but in most cases, it is just
|
||||
// an alias of this type (which might change when the requirement arises.)
|
||||
//
|
||||
// It is mandatory to set Name to a non-empty string. All other fields are
|
||||
// optional and can safely be left at their zero value, although it is strongly
|
||||
// encouraged to set a Help string.
|
||||
type Opts struct {
|
||||
// Namespace, Subsystem, and Name are components of the fully-qualified
|
||||
// name of the Metric (created by joining these components with
|
||||
// "_"). Only Name is mandatory, the others merely help structuring the
|
||||
// name. Note that the fully-qualified name of the metric must be a
|
||||
// valid Prometheus metric name.
|
||||
Namespace string
|
||||
Subsystem string
|
||||
Name string
|
||||
|
||||
// Help provides information about this metric.
|
||||
//
|
||||
// Metrics with the same fully-qualified name must have the same Help
|
||||
// string.
|
||||
Help string
|
||||
|
||||
// ConstLabels are used to attach fixed labels to this metric. Metrics
|
||||
// with the same fully-qualified name must have the same label names in
|
||||
// their ConstLabels.
|
||||
//
|
||||
// ConstLabels are only used rarely. In particular, do not use them to
|
||||
// attach the same labels to all your metrics. Those use cases are
|
||||
// better covered by target labels set by the scraping Prometheus
|
||||
// server, or by one specific metric (e.g. a build_info or a
|
||||
// machine_role metric). See also
|
||||
// https://prometheus.io/docs/instrumenting/writing_exporters/#target-labels-not-static-scraped-labels
|
||||
ConstLabels Labels
|
||||
}
|
||||
|
||||
// BuildFQName joins the given three name components by "_". Empty name
|
||||
// components are ignored. If the name parameter itself is empty, an empty
|
||||
// string is returned, no matter what. Metric implementations included in this
|
||||
// library use this function internally to generate the fully-qualified metric
|
||||
// name from the name component in their Opts. Users of the library will only
|
||||
// need this function if they implement their own Metric or instantiate a Desc
|
||||
// (with NewDesc) directly.
|
||||
func BuildFQName(namespace, subsystem, name string) string {
|
||||
if name == "" {
|
||||
return ""
|
||||
}
|
||||
switch {
|
||||
case namespace != "" && subsystem != "":
|
||||
return strings.Join([]string{namespace, subsystem, name}, "_")
|
||||
case namespace != "":
|
||||
return strings.Join([]string{namespace, name}, "_")
|
||||
case subsystem != "":
|
||||
return strings.Join([]string{subsystem, name}, "_")
|
||||
}
|
||||
return name
|
||||
}
|
||||
|
||||
// labelPairSorter implements sort.Interface. It is used to sort a slice of
|
||||
// dto.LabelPair pointers.
|
||||
type labelPairSorter []*dto.LabelPair
|
||||
|
||||
func (s labelPairSorter) Len() int {
|
||||
return len(s)
|
||||
}
|
||||
|
||||
func (s labelPairSorter) Swap(i, j int) {
|
||||
s[i], s[j] = s[j], s[i]
|
||||
}
|
||||
|
||||
func (s labelPairSorter) Less(i, j int) bool {
|
||||
return s[i].GetName() < s[j].GetName()
|
||||
}
|
||||
|
||||
type invalidMetric struct {
|
||||
desc *Desc
|
||||
err error
|
||||
}
|
||||
|
||||
// NewInvalidMetric returns a metric whose Write method always returns the
|
||||
// provided error. It is useful if a Collector finds itself unable to collect
|
||||
// a metric and wishes to report an error to the registry.
|
||||
func NewInvalidMetric(desc *Desc, err error) Metric {
|
||||
return &invalidMetric{desc, err}
|
||||
}
|
||||
|
||||
func (m *invalidMetric) Desc() *Desc { return m.desc }
|
||||
|
||||
func (m *invalidMetric) Write(*dto.Metric) error { return m.err }
|
||||
|
||||
type timestampedMetric struct {
|
||||
Metric
|
||||
t time.Time
|
||||
}
|
||||
|
||||
func (m timestampedMetric) Write(pb *dto.Metric) error {
|
||||
e := m.Metric.Write(pb)
|
||||
pb.TimestampMs = proto.Int64(m.t.Unix()*1000 + int64(m.t.Nanosecond()/1000000))
|
||||
return e
|
||||
}
|
||||
|
||||
// NewMetricWithTimestamp returns a new Metric wrapping the provided Metric in a
|
||||
// way that it has an explicit timestamp set to the provided Time. This is only
|
||||
// useful in rare cases as the timestamp of a Prometheus metric should usually
|
||||
// be set by the Prometheus server during scraping. Exceptions include mirroring
|
||||
// metrics with given timestamps from other metric
|
||||
// sources.
|
||||
//
|
||||
// NewMetricWithTimestamp works best with MustNewConstMetric,
|
||||
// MustNewConstHistogram, and MustNewConstSummary, see example.
|
||||
//
|
||||
// Currently, the exposition formats used by Prometheus are limited to
|
||||
// millisecond resolution. Thus, the provided time will be rounded down to the
|
||||
// next full millisecond value.
|
||||
func NewMetricWithTimestamp(t time.Time, m Metric) Metric {
|
||||
return timestampedMetric{Metric: m, t: t}
|
||||
}
|
64
vendor/github.com/prometheus/client_golang/prometheus/observer.go
generated
vendored
Normal file
64
vendor/github.com/prometheus/client_golang/prometheus/observer.go
generated
vendored
Normal file
@ -0,0 +1,64 @@
|
||||
// Copyright 2017 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
// Observer is the interface that wraps the Observe method, which is used by
|
||||
// Histogram and Summary to add observations.
|
||||
type Observer interface {
|
||||
Observe(float64)
|
||||
}
|
||||
|
||||
// The ObserverFunc type is an adapter to allow the use of ordinary
|
||||
// functions as Observers. If f is a function with the appropriate
|
||||
// signature, ObserverFunc(f) is an Observer that calls f.
|
||||
//
|
||||
// This adapter is usually used in connection with the Timer type, and there are
|
||||
// two general use cases:
|
||||
//
|
||||
// The most common one is to use a Gauge as the Observer for a Timer.
|
||||
// See the "Gauge" Timer example.
|
||||
//
|
||||
// The more advanced use case is to create a function that dynamically decides
|
||||
// which Observer to use for observing the duration. See the "Complex" Timer
|
||||
// example.
|
||||
type ObserverFunc func(float64)
|
||||
|
||||
// Observe calls f(value). It implements Observer.
|
||||
func (f ObserverFunc) Observe(value float64) {
|
||||
f(value)
|
||||
}
|
||||
|
||||
// ObserverVec is an interface implemented by `HistogramVec` and `SummaryVec`.
|
||||
type ObserverVec interface {
|
||||
GetMetricWith(Labels) (Observer, error)
|
||||
GetMetricWithLabelValues(lvs ...string) (Observer, error)
|
||||
With(Labels) Observer
|
||||
WithLabelValues(...string) Observer
|
||||
CurryWith(Labels) (ObserverVec, error)
|
||||
MustCurryWith(Labels) ObserverVec
|
||||
|
||||
Collector
|
||||
}
|
||||
|
||||
// ExemplarObserver is implemented by Observers that offer the option of
|
||||
// observing a value together with an exemplar. Its ObserveWithExemplar method
|
||||
// works like the Observe method of an Observer but also replaces the currently
|
||||
// saved exemplar (if any) with a new one, created from the provided value, the
|
||||
// current time as timestamp, and the provided Labels. Empty Labels will lead to
|
||||
// a valid (label-less) exemplar. But if Labels is nil, the current exemplar is
|
||||
// left in place. ObserveWithExemplar panics if any of the provided labels are
|
||||
// invalid or if the provided labels contain more than 64 runes in total.
|
||||
type ExemplarObserver interface {
|
||||
ObserveWithExemplar(value float64, exemplar Labels)
|
||||
}
|
172
vendor/github.com/prometheus/client_golang/prometheus/process_collector.go
generated
vendored
Normal file
172
vendor/github.com/prometheus/client_golang/prometheus/process_collector.go
generated
vendored
Normal file
@ -0,0 +1,172 @@
|
||||
// Copyright 2015 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type processCollector struct {
|
||||
collectFn func(chan<- Metric)
|
||||
pidFn func() (int, error)
|
||||
reportErrors bool
|
||||
cpuTotal *Desc
|
||||
openFDs, maxFDs *Desc
|
||||
vsize, maxVsize *Desc
|
||||
rss *Desc
|
||||
startTime *Desc
|
||||
}
|
||||
|
||||
// ProcessCollectorOpts defines the behavior of a process metrics collector
|
||||
// created with NewProcessCollector.
|
||||
type ProcessCollectorOpts struct {
|
||||
// PidFn returns the PID of the process the collector collects metrics
|
||||
// for. It is called upon each collection. By default, the PID of the
|
||||
// current process is used, as determined on construction time by
|
||||
// calling os.Getpid().
|
||||
PidFn func() (int, error)
|
||||
// If non-empty, each of the collected metrics is prefixed by the
|
||||
// provided string and an underscore ("_").
|
||||
Namespace string
|
||||
// If true, any error encountered during collection is reported as an
|
||||
// invalid metric (see NewInvalidMetric). Otherwise, errors are ignored
|
||||
// and the collected metrics will be incomplete. (Possibly, no metrics
|
||||
// will be collected at all.) While that's usually not desired, it is
|
||||
// appropriate for the common "mix-in" of process metrics, where process
|
||||
// metrics are nice to have, but failing to collect them should not
|
||||
// disrupt the collection of the remaining metrics.
|
||||
ReportErrors bool
|
||||
}
|
||||
|
||||
// NewProcessCollector returns a collector which exports the current state of
|
||||
// process metrics including CPU, memory and file descriptor usage as well as
|
||||
// the process start time. The detailed behavior is defined by the provided
|
||||
// ProcessCollectorOpts. The zero value of ProcessCollectorOpts creates a
|
||||
// collector for the current process with an empty namespace string and no error
|
||||
// reporting.
|
||||
//
|
||||
// The collector only works on operating systems with a Linux-style proc
|
||||
// filesystem and on Microsoft Windows. On other operating systems, it will not
|
||||
// collect any metrics.
|
||||
func NewProcessCollector(opts ProcessCollectorOpts) Collector {
|
||||
ns := ""
|
||||
if len(opts.Namespace) > 0 {
|
||||
ns = opts.Namespace + "_"
|
||||
}
|
||||
|
||||
c := &processCollector{
|
||||
reportErrors: opts.ReportErrors,
|
||||
cpuTotal: NewDesc(
|
||||
ns+"process_cpu_seconds_total",
|
||||
"Total user and system CPU time spent in seconds.",
|
||||
nil, nil,
|
||||
),
|
||||
openFDs: NewDesc(
|
||||
ns+"process_open_fds",
|
||||
"Number of open file descriptors.",
|
||||
nil, nil,
|
||||
),
|
||||
maxFDs: NewDesc(
|
||||
ns+"process_max_fds",
|
||||
"Maximum number of open file descriptors.",
|
||||
nil, nil,
|
||||
),
|
||||
vsize: NewDesc(
|
||||
ns+"process_virtual_memory_bytes",
|
||||
"Virtual memory size in bytes.",
|
||||
nil, nil,
|
||||
),
|
||||
maxVsize: NewDesc(
|
||||
ns+"process_virtual_memory_max_bytes",
|
||||
"Maximum amount of virtual memory available in bytes.",
|
||||
nil, nil,
|
||||
),
|
||||
rss: NewDesc(
|
||||
ns+"process_resident_memory_bytes",
|
||||
"Resident memory size in bytes.",
|
||||
nil, nil,
|
||||
),
|
||||
startTime: NewDesc(
|
||||
ns+"process_start_time_seconds",
|
||||
"Start time of the process since unix epoch in seconds.",
|
||||
nil, nil,
|
||||
),
|
||||
}
|
||||
|
||||
if opts.PidFn == nil {
|
||||
pid := os.Getpid()
|
||||
c.pidFn = func() (int, error) { return pid, nil }
|
||||
} else {
|
||||
c.pidFn = opts.PidFn
|
||||
}
|
||||
|
||||
// Set up process metric collection if supported by the runtime.
|
||||
if canCollectProcess() {
|
||||
c.collectFn = c.processCollect
|
||||
} else {
|
||||
c.collectFn = func(ch chan<- Metric) {
|
||||
c.reportError(ch, nil, errors.New("process metrics not supported on this platform"))
|
||||
}
|
||||
}
|
||||
|
||||
return c
|
||||
}
|
||||
|
||||
// Describe returns all descriptions of the collector.
|
||||
func (c *processCollector) Describe(ch chan<- *Desc) {
|
||||
ch <- c.cpuTotal
|
||||
ch <- c.openFDs
|
||||
ch <- c.maxFDs
|
||||
ch <- c.vsize
|
||||
ch <- c.maxVsize
|
||||
ch <- c.rss
|
||||
ch <- c.startTime
|
||||
}
|
||||
|
||||
// Collect returns the current state of all metrics of the collector.
|
||||
func (c *processCollector) Collect(ch chan<- Metric) {
|
||||
c.collectFn(ch)
|
||||
}
|
||||
|
||||
func (c *processCollector) reportError(ch chan<- Metric, desc *Desc, err error) {
|
||||
if !c.reportErrors {
|
||||
return
|
||||
}
|
||||
if desc == nil {
|
||||
desc = NewInvalidDesc(err)
|
||||
}
|
||||
ch <- NewInvalidMetric(desc, err)
|
||||
}
|
||||
|
||||
// NewPidFileFn returns a function that retrieves a pid from the specified file.
|
||||
// It is meant to be used for the PidFn field in ProcessCollectorOpts.
|
||||
func NewPidFileFn(pidFilePath string) func() (int, error) {
|
||||
return func() (int, error) {
|
||||
content, err := ioutil.ReadFile(pidFilePath)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("can't read pid file %q: %+v", pidFilePath, err)
|
||||
}
|
||||
pid, err := strconv.Atoi(strings.TrimSpace(string(content)))
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("can't parse pid file %q: %+v", pidFilePath, err)
|
||||
}
|
||||
|
||||
return pid, nil
|
||||
}
|
||||
}
|
65
vendor/github.com/prometheus/client_golang/prometheus/process_collector_other.go
generated
vendored
Normal file
65
vendor/github.com/prometheus/client_golang/prometheus/process_collector_other.go
generated
vendored
Normal file
@ -0,0 +1,65 @@
|
||||
// Copyright 2019 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
// +build !windows
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"github.com/prometheus/procfs"
|
||||
)
|
||||
|
||||
func canCollectProcess() bool {
|
||||
_, err := procfs.NewDefaultFS()
|
||||
return err == nil
|
||||
}
|
||||
|
||||
func (c *processCollector) processCollect(ch chan<- Metric) {
|
||||
pid, err := c.pidFn()
|
||||
if err != nil {
|
||||
c.reportError(ch, nil, err)
|
||||
return
|
||||
}
|
||||
|
||||
p, err := procfs.NewProc(pid)
|
||||
if err != nil {
|
||||
c.reportError(ch, nil, err)
|
||||
return
|
||||
}
|
||||
|
||||
if stat, err := p.Stat(); err == nil {
|
||||
ch <- MustNewConstMetric(c.cpuTotal, CounterValue, stat.CPUTime())
|
||||
ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(stat.VirtualMemory()))
|
||||
ch <- MustNewConstMetric(c.rss, GaugeValue, float64(stat.ResidentMemory()))
|
||||
if startTime, err := stat.StartTime(); err == nil {
|
||||
ch <- MustNewConstMetric(c.startTime, GaugeValue, startTime)
|
||||
} else {
|
||||
c.reportError(ch, c.startTime, err)
|
||||
}
|
||||
} else {
|
||||
c.reportError(ch, nil, err)
|
||||
}
|
||||
|
||||
if fds, err := p.FileDescriptorsLen(); err == nil {
|
||||
ch <- MustNewConstMetric(c.openFDs, GaugeValue, float64(fds))
|
||||
} else {
|
||||
c.reportError(ch, c.openFDs, err)
|
||||
}
|
||||
|
||||
if limits, err := p.Limits(); err == nil {
|
||||
ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(limits.OpenFiles))
|
||||
ch <- MustNewConstMetric(c.maxVsize, GaugeValue, float64(limits.AddressSpace))
|
||||
} else {
|
||||
c.reportError(ch, nil, err)
|
||||
}
|
||||
}
|
116
vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go
generated
vendored
Normal file
116
vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go
generated
vendored
Normal file
@ -0,0 +1,116 @@
|
||||
// Copyright 2019 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
func canCollectProcess() bool {
|
||||
return true
|
||||
}
|
||||
|
||||
var (
|
||||
modpsapi = syscall.NewLazyDLL("psapi.dll")
|
||||
modkernel32 = syscall.NewLazyDLL("kernel32.dll")
|
||||
|
||||
procGetProcessMemoryInfo = modpsapi.NewProc("GetProcessMemoryInfo")
|
||||
procGetProcessHandleCount = modkernel32.NewProc("GetProcessHandleCount")
|
||||
)
|
||||
|
||||
type processMemoryCounters struct {
|
||||
// System interface description
|
||||
// https://docs.microsoft.com/en-us/windows/desktop/api/psapi/ns-psapi-process_memory_counters_ex
|
||||
|
||||
// Refer to the Golang internal implementation
|
||||
// https://golang.org/src/internal/syscall/windows/psapi_windows.go
|
||||
_ uint32
|
||||
PageFaultCount uint32
|
||||
PeakWorkingSetSize uintptr
|
||||
WorkingSetSize uintptr
|
||||
QuotaPeakPagedPoolUsage uintptr
|
||||
QuotaPagedPoolUsage uintptr
|
||||
QuotaPeakNonPagedPoolUsage uintptr
|
||||
QuotaNonPagedPoolUsage uintptr
|
||||
PagefileUsage uintptr
|
||||
PeakPagefileUsage uintptr
|
||||
PrivateUsage uintptr
|
||||
}
|
||||
|
||||
func getProcessMemoryInfo(handle windows.Handle) (processMemoryCounters, error) {
|
||||
mem := processMemoryCounters{}
|
||||
r1, _, err := procGetProcessMemoryInfo.Call(
|
||||
uintptr(handle),
|
||||
uintptr(unsafe.Pointer(&mem)),
|
||||
uintptr(unsafe.Sizeof(mem)),
|
||||
)
|
||||
if r1 != 1 {
|
||||
return mem, err
|
||||
} else {
|
||||
return mem, nil
|
||||
}
|
||||
}
|
||||
|
||||
func getProcessHandleCount(handle windows.Handle) (uint32, error) {
|
||||
var count uint32
|
||||
r1, _, err := procGetProcessHandleCount.Call(
|
||||
uintptr(handle),
|
||||
uintptr(unsafe.Pointer(&count)),
|
||||
)
|
||||
if r1 != 1 {
|
||||
return 0, err
|
||||
} else {
|
||||
return count, nil
|
||||
}
|
||||
}
|
||||
|
||||
func (c *processCollector) processCollect(ch chan<- Metric) {
|
||||
h, err := windows.GetCurrentProcess()
|
||||
if err != nil {
|
||||
c.reportError(ch, nil, err)
|
||||
return
|
||||
}
|
||||
|
||||
var startTime, exitTime, kernelTime, userTime windows.Filetime
|
||||
err = windows.GetProcessTimes(h, &startTime, &exitTime, &kernelTime, &userTime)
|
||||
if err != nil {
|
||||
c.reportError(ch, nil, err)
|
||||
return
|
||||
}
|
||||
ch <- MustNewConstMetric(c.startTime, GaugeValue, float64(startTime.Nanoseconds()/1e9))
|
||||
ch <- MustNewConstMetric(c.cpuTotal, CounterValue, fileTimeToSeconds(kernelTime)+fileTimeToSeconds(userTime))
|
||||
|
||||
mem, err := getProcessMemoryInfo(h)
|
||||
if err != nil {
|
||||
c.reportError(ch, nil, err)
|
||||
return
|
||||
}
|
||||
ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(mem.PrivateUsage))
|
||||
ch <- MustNewConstMetric(c.rss, GaugeValue, float64(mem.WorkingSetSize))
|
||||
|
||||
handles, err := getProcessHandleCount(h)
|
||||
if err != nil {
|
||||
c.reportError(ch, nil, err)
|
||||
return
|
||||
}
|
||||
ch <- MustNewConstMetric(c.openFDs, GaugeValue, float64(handles))
|
||||
ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(16*1024*1024)) // Windows has a hard-coded max limit, not per-process.
|
||||
}
|
||||
|
||||
func fileTimeToSeconds(ft windows.Filetime) float64 {
|
||||
return float64(uint64(ft.HighDateTime)<<32+uint64(ft.LowDateTime)) / 1e7
|
||||
}
|
368
vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go
generated
vendored
Normal file
368
vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go
generated
vendored
Normal file
@ -0,0 +1,368 @@
|
||||
// Copyright 2017 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package promhttp
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"io"
|
||||
"net"
|
||||
"net/http"
|
||||
)
|
||||
|
||||
const (
|
||||
closeNotifier = 1 << iota
|
||||
flusher
|
||||
hijacker
|
||||
readerFrom
|
||||
pusher
|
||||
)
|
||||
|
||||
type delegator interface {
|
||||
http.ResponseWriter
|
||||
|
||||
Status() int
|
||||
Written() int64
|
||||
}
|
||||
|
||||
type responseWriterDelegator struct {
|
||||
http.ResponseWriter
|
||||
|
||||
status int
|
||||
written int64
|
||||
wroteHeader bool
|
||||
observeWriteHeader func(int)
|
||||
}
|
||||
|
||||
func (r *responseWriterDelegator) Status() int {
|
||||
return r.status
|
||||
}
|
||||
|
||||
func (r *responseWriterDelegator) Written() int64 {
|
||||
return r.written
|
||||
}
|
||||
|
||||
func (r *responseWriterDelegator) WriteHeader(code int) {
|
||||
if r.observeWriteHeader != nil && !r.wroteHeader {
|
||||
// Only call observeWriteHeader for the 1st time. It's a bug if
|
||||
// WriteHeader is called more than once, but we want to protect
|
||||
// against it here. Note that we still delegate the WriteHeader
|
||||
// to the original ResponseWriter to not mask the bug from it.
|
||||
r.observeWriteHeader(code)
|
||||
}
|
||||
r.status = code
|
||||
r.wroteHeader = true
|
||||
r.ResponseWriter.WriteHeader(code)
|
||||
}
|
||||
|
||||
func (r *responseWriterDelegator) Write(b []byte) (int, error) {
|
||||
// If applicable, call WriteHeader here so that observeWriteHeader is
|
||||
// handled appropriately.
|
||||
if !r.wroteHeader {
|
||||
r.WriteHeader(http.StatusOK)
|
||||
}
|
||||
n, err := r.ResponseWriter.Write(b)
|
||||
r.written += int64(n)
|
||||
return n, err
|
||||
}
|
||||
|
||||
type closeNotifierDelegator struct{ *responseWriterDelegator }
|
||||
type flusherDelegator struct{ *responseWriterDelegator }
|
||||
type hijackerDelegator struct{ *responseWriterDelegator }
|
||||
type readerFromDelegator struct{ *responseWriterDelegator }
|
||||
type pusherDelegator struct{ *responseWriterDelegator }
|
||||
|
||||
func (d closeNotifierDelegator) CloseNotify() <-chan bool {
|
||||
//nolint:staticcheck // Ignore SA1019. http.CloseNotifier is deprecated but we keep it here to not break existing users.
|
||||
return d.ResponseWriter.(http.CloseNotifier).CloseNotify()
|
||||
}
|
||||
func (d flusherDelegator) Flush() {
|
||||
// If applicable, call WriteHeader here so that observeWriteHeader is
|
||||
// handled appropriately.
|
||||
if !d.wroteHeader {
|
||||
d.WriteHeader(http.StatusOK)
|
||||
}
|
||||
d.ResponseWriter.(http.Flusher).Flush()
|
||||
}
|
||||
func (d hijackerDelegator) Hijack() (net.Conn, *bufio.ReadWriter, error) {
|
||||
return d.ResponseWriter.(http.Hijacker).Hijack()
|
||||
}
|
||||
func (d readerFromDelegator) ReadFrom(re io.Reader) (int64, error) {
|
||||
// If applicable, call WriteHeader here so that observeWriteHeader is
|
||||
// handled appropriately.
|
||||
if !d.wroteHeader {
|
||||
d.WriteHeader(http.StatusOK)
|
||||
}
|
||||
n, err := d.ResponseWriter.(io.ReaderFrom).ReadFrom(re)
|
||||
d.written += n
|
||||
return n, err
|
||||
}
|
||||
func (d pusherDelegator) Push(target string, opts *http.PushOptions) error {
|
||||
return d.ResponseWriter.(http.Pusher).Push(target, opts)
|
||||
}
|
||||
|
||||
var pickDelegator = make([]func(*responseWriterDelegator) delegator, 32)
|
||||
|
||||
func init() {
|
||||
// TODO(beorn7): Code generation would help here.
|
||||
pickDelegator[0] = func(d *responseWriterDelegator) delegator { // 0
|
||||
return d
|
||||
}
|
||||
pickDelegator[closeNotifier] = func(d *responseWriterDelegator) delegator { // 1
|
||||
return closeNotifierDelegator{d}
|
||||
}
|
||||
pickDelegator[flusher] = func(d *responseWriterDelegator) delegator { // 2
|
||||
return flusherDelegator{d}
|
||||
}
|
||||
pickDelegator[flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 3
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Flusher
|
||||
http.CloseNotifier
|
||||
}{d, flusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[hijacker] = func(d *responseWriterDelegator) delegator { // 4
|
||||
return hijackerDelegator{d}
|
||||
}
|
||||
pickDelegator[hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 5
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Hijacker
|
||||
http.CloseNotifier
|
||||
}{d, hijackerDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 6
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Hijacker
|
||||
http.Flusher
|
||||
}{d, hijackerDelegator{d}, flusherDelegator{d}}
|
||||
}
|
||||
pickDelegator[hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 7
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Hijacker
|
||||
http.Flusher
|
||||
http.CloseNotifier
|
||||
}{d, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[readerFrom] = func(d *responseWriterDelegator) delegator { // 8
|
||||
return readerFromDelegator{d}
|
||||
}
|
||||
pickDelegator[readerFrom+closeNotifier] = func(d *responseWriterDelegator) delegator { // 9
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
io.ReaderFrom
|
||||
http.CloseNotifier
|
||||
}{d, readerFromDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[readerFrom+flusher] = func(d *responseWriterDelegator) delegator { // 10
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
io.ReaderFrom
|
||||
http.Flusher
|
||||
}{d, readerFromDelegator{d}, flusherDelegator{d}}
|
||||
}
|
||||
pickDelegator[readerFrom+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 11
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
io.ReaderFrom
|
||||
http.Flusher
|
||||
http.CloseNotifier
|
||||
}{d, readerFromDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[readerFrom+hijacker] = func(d *responseWriterDelegator) delegator { // 12
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
io.ReaderFrom
|
||||
http.Hijacker
|
||||
}{d, readerFromDelegator{d}, hijackerDelegator{d}}
|
||||
}
|
||||
pickDelegator[readerFrom+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 13
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
io.ReaderFrom
|
||||
http.Hijacker
|
||||
http.CloseNotifier
|
||||
}{d, readerFromDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[readerFrom+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 14
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
io.ReaderFrom
|
||||
http.Hijacker
|
||||
http.Flusher
|
||||
}{d, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}}
|
||||
}
|
||||
pickDelegator[readerFrom+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 15
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
io.ReaderFrom
|
||||
http.Hijacker
|
||||
http.Flusher
|
||||
http.CloseNotifier
|
||||
}{d, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher] = func(d *responseWriterDelegator) delegator { // 16
|
||||
return pusherDelegator{d}
|
||||
}
|
||||
pickDelegator[pusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 17
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
http.CloseNotifier
|
||||
}{d, pusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+flusher] = func(d *responseWriterDelegator) delegator { // 18
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
http.Flusher
|
||||
}{d, pusherDelegator{d}, flusherDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 19
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
http.Flusher
|
||||
http.CloseNotifier
|
||||
}{d, pusherDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+hijacker] = func(d *responseWriterDelegator) delegator { // 20
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
http.Hijacker
|
||||
}{d, pusherDelegator{d}, hijackerDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 21
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
http.Hijacker
|
||||
http.CloseNotifier
|
||||
}{d, pusherDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 22
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
http.Hijacker
|
||||
http.Flusher
|
||||
}{d, pusherDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { //23
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
http.Hijacker
|
||||
http.Flusher
|
||||
http.CloseNotifier
|
||||
}{d, pusherDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+readerFrom] = func(d *responseWriterDelegator) delegator { // 24
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
io.ReaderFrom
|
||||
}{d, pusherDelegator{d}, readerFromDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+readerFrom+closeNotifier] = func(d *responseWriterDelegator) delegator { // 25
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
io.ReaderFrom
|
||||
http.CloseNotifier
|
||||
}{d, pusherDelegator{d}, readerFromDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+readerFrom+flusher] = func(d *responseWriterDelegator) delegator { // 26
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
io.ReaderFrom
|
||||
http.Flusher
|
||||
}{d, pusherDelegator{d}, readerFromDelegator{d}, flusherDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+readerFrom+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 27
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
io.ReaderFrom
|
||||
http.Flusher
|
||||
http.CloseNotifier
|
||||
}{d, pusherDelegator{d}, readerFromDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+readerFrom+hijacker] = func(d *responseWriterDelegator) delegator { // 28
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
io.ReaderFrom
|
||||
http.Hijacker
|
||||
}{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+readerFrom+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 29
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
io.ReaderFrom
|
||||
http.Hijacker
|
||||
http.CloseNotifier
|
||||
}{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+readerFrom+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 30
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
io.ReaderFrom
|
||||
http.Hijacker
|
||||
http.Flusher
|
||||
}{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}}
|
||||
}
|
||||
pickDelegator[pusher+readerFrom+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 31
|
||||
return struct {
|
||||
*responseWriterDelegator
|
||||
http.Pusher
|
||||
io.ReaderFrom
|
||||
http.Hijacker
|
||||
http.Flusher
|
||||
http.CloseNotifier
|
||||
}{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
|
||||
}
|
||||
}
|
||||
|
||||
func newDelegator(w http.ResponseWriter, observeWriteHeaderFunc func(int)) delegator {
|
||||
d := &responseWriterDelegator{
|
||||
ResponseWriter: w,
|
||||
observeWriteHeader: observeWriteHeaderFunc,
|
||||
}
|
||||
|
||||
id := 0
|
||||
//nolint:staticcheck // Ignore SA1019. http.CloseNotifier is deprecated but we keep it here to not break existing users.
|
||||
if _, ok := w.(http.CloseNotifier); ok {
|
||||
id += closeNotifier
|
||||
}
|
||||
if _, ok := w.(http.Flusher); ok {
|
||||
id += flusher
|
||||
}
|
||||
if _, ok := w.(http.Hijacker); ok {
|
||||
id += hijacker
|
||||
}
|
||||
if _, ok := w.(io.ReaderFrom); ok {
|
||||
id += readerFrom
|
||||
}
|
||||
if _, ok := w.(http.Pusher); ok {
|
||||
id += pusher
|
||||
}
|
||||
|
||||
return pickDelegator[id](d)
|
||||
}
|
383
vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go
generated
vendored
Normal file
383
vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go
generated
vendored
Normal file
@ -0,0 +1,383 @@
|
||||
// Copyright 2016 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
// Package promhttp provides tooling around HTTP servers and clients.
|
||||
//
|
||||
// First, the package allows the creation of http.Handler instances to expose
|
||||
// Prometheus metrics via HTTP. promhttp.Handler acts on the
|
||||
// prometheus.DefaultGatherer. With HandlerFor, you can create a handler for a
|
||||
// custom registry or anything that implements the Gatherer interface. It also
|
||||
// allows the creation of handlers that act differently on errors or allow to
|
||||
// log errors.
|
||||
//
|
||||
// Second, the package provides tooling to instrument instances of http.Handler
|
||||
// via middleware. Middleware wrappers follow the naming scheme
|
||||
// InstrumentHandlerX, where X describes the intended use of the middleware.
|
||||
// See each function's doc comment for specific details.
|
||||
//
|
||||
// Finally, the package allows for an http.RoundTripper to be instrumented via
|
||||
// middleware. Middleware wrappers follow the naming scheme
|
||||
// InstrumentRoundTripperX, where X describes the intended use of the
|
||||
// middleware. See each function's doc comment for specific details.
|
||||
package promhttp
|
||||
|
||||
import (
|
||||
"compress/gzip"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/prometheus/common/expfmt"
|
||||
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
const (
|
||||
contentTypeHeader = "Content-Type"
|
||||
contentEncodingHeader = "Content-Encoding"
|
||||
acceptEncodingHeader = "Accept-Encoding"
|
||||
)
|
||||
|
||||
var gzipPool = sync.Pool{
|
||||
New: func() interface{} {
|
||||
return gzip.NewWriter(nil)
|
||||
},
|
||||
}
|
||||
|
||||
// Handler returns an http.Handler for the prometheus.DefaultGatherer, using
|
||||
// default HandlerOpts, i.e. it reports the first error as an HTTP error, it has
|
||||
// no error logging, and it applies compression if requested by the client.
|
||||
//
|
||||
// The returned http.Handler is already instrumented using the
|
||||
// InstrumentMetricHandler function and the prometheus.DefaultRegisterer. If you
|
||||
// create multiple http.Handlers by separate calls of the Handler function, the
|
||||
// metrics used for instrumentation will be shared between them, providing
|
||||
// global scrape counts.
|
||||
//
|
||||
// This function is meant to cover the bulk of basic use cases. If you are doing
|
||||
// anything that requires more customization (including using a non-default
|
||||
// Gatherer, different instrumentation, and non-default HandlerOpts), use the
|
||||
// HandlerFor function. See there for details.
|
||||
func Handler() http.Handler {
|
||||
return InstrumentMetricHandler(
|
||||
prometheus.DefaultRegisterer, HandlerFor(prometheus.DefaultGatherer, HandlerOpts{}),
|
||||
)
|
||||
}
|
||||
|
||||
// HandlerFor returns an uninstrumented http.Handler for the provided
|
||||
// Gatherer. The behavior of the Handler is defined by the provided
|
||||
// HandlerOpts. Thus, HandlerFor is useful to create http.Handlers for custom
|
||||
// Gatherers, with non-default HandlerOpts, and/or with custom (or no)
|
||||
// instrumentation. Use the InstrumentMetricHandler function to apply the same
|
||||
// kind of instrumentation as it is used by the Handler function.
|
||||
func HandlerFor(reg prometheus.Gatherer, opts HandlerOpts) http.Handler {
|
||||
var (
|
||||
inFlightSem chan struct{}
|
||||
errCnt = prometheus.NewCounterVec(
|
||||
prometheus.CounterOpts{
|
||||
Name: "promhttp_metric_handler_errors_total",
|
||||
Help: "Total number of internal errors encountered by the promhttp metric handler.",
|
||||
},
|
||||
[]string{"cause"},
|
||||
)
|
||||
)
|
||||
|
||||
if opts.MaxRequestsInFlight > 0 {
|
||||
inFlightSem = make(chan struct{}, opts.MaxRequestsInFlight)
|
||||
}
|
||||
if opts.Registry != nil {
|
||||
// Initialize all possibilities that can occur below.
|
||||
errCnt.WithLabelValues("gathering")
|
||||
errCnt.WithLabelValues("encoding")
|
||||
if err := opts.Registry.Register(errCnt); err != nil {
|
||||
if are, ok := err.(prometheus.AlreadyRegisteredError); ok {
|
||||
errCnt = are.ExistingCollector.(*prometheus.CounterVec)
|
||||
} else {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
h := http.HandlerFunc(func(rsp http.ResponseWriter, req *http.Request) {
|
||||
if inFlightSem != nil {
|
||||
select {
|
||||
case inFlightSem <- struct{}{}: // All good, carry on.
|
||||
defer func() { <-inFlightSem }()
|
||||
default:
|
||||
http.Error(rsp, fmt.Sprintf(
|
||||
"Limit of concurrent requests reached (%d), try again later.", opts.MaxRequestsInFlight,
|
||||
), http.StatusServiceUnavailable)
|
||||
return
|
||||
}
|
||||
}
|
||||
mfs, err := reg.Gather()
|
||||
if err != nil {
|
||||
if opts.ErrorLog != nil {
|
||||
opts.ErrorLog.Println("error gathering metrics:", err)
|
||||
}
|
||||
errCnt.WithLabelValues("gathering").Inc()
|
||||
switch opts.ErrorHandling {
|
||||
case PanicOnError:
|
||||
panic(err)
|
||||
case ContinueOnError:
|
||||
if len(mfs) == 0 {
|
||||
// Still report the error if no metrics have been gathered.
|
||||
httpError(rsp, err)
|
||||
return
|
||||
}
|
||||
case HTTPErrorOnError:
|
||||
httpError(rsp, err)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
var contentType expfmt.Format
|
||||
if opts.EnableOpenMetrics {
|
||||
contentType = expfmt.NegotiateIncludingOpenMetrics(req.Header)
|
||||
} else {
|
||||
contentType = expfmt.Negotiate(req.Header)
|
||||
}
|
||||
header := rsp.Header()
|
||||
header.Set(contentTypeHeader, string(contentType))
|
||||
|
||||
w := io.Writer(rsp)
|
||||
if !opts.DisableCompression && gzipAccepted(req.Header) {
|
||||
header.Set(contentEncodingHeader, "gzip")
|
||||
gz := gzipPool.Get().(*gzip.Writer)
|
||||
defer gzipPool.Put(gz)
|
||||
|
||||
gz.Reset(w)
|
||||
defer gz.Close()
|
||||
|
||||
w = gz
|
||||
}
|
||||
|
||||
enc := expfmt.NewEncoder(w, contentType)
|
||||
|
||||
// handleError handles the error according to opts.ErrorHandling
|
||||
// and returns true if we have to abort after the handling.
|
||||
handleError := func(err error) bool {
|
||||
if err == nil {
|
||||
return false
|
||||
}
|
||||
if opts.ErrorLog != nil {
|
||||
opts.ErrorLog.Println("error encoding and sending metric family:", err)
|
||||
}
|
||||
errCnt.WithLabelValues("encoding").Inc()
|
||||
switch opts.ErrorHandling {
|
||||
case PanicOnError:
|
||||
panic(err)
|
||||
case HTTPErrorOnError:
|
||||
// We cannot really send an HTTP error at this
|
||||
// point because we most likely have written
|
||||
// something to rsp already. But at least we can
|
||||
// stop sending.
|
||||
return true
|
||||
}
|
||||
// Do nothing in all other cases, including ContinueOnError.
|
||||
return false
|
||||
}
|
||||
|
||||
for _, mf := range mfs {
|
||||
if handleError(enc.Encode(mf)) {
|
||||
return
|
||||
}
|
||||
}
|
||||
if closer, ok := enc.(expfmt.Closer); ok {
|
||||
// This in particular takes care of the final "# EOF\n" line for OpenMetrics.
|
||||
if handleError(closer.Close()) {
|
||||
return
|
||||
}
|
||||
}
|
||||
})
|
||||
|
||||
if opts.Timeout <= 0 {
|
||||
return h
|
||||
}
|
||||
return http.TimeoutHandler(h, opts.Timeout, fmt.Sprintf(
|
||||
"Exceeded configured timeout of %v.\n",
|
||||
opts.Timeout,
|
||||
))
|
||||
}
|
||||
|
||||
// InstrumentMetricHandler is usually used with an http.Handler returned by the
|
||||
// HandlerFor function. It instruments the provided http.Handler with two
|
||||
// metrics: A counter vector "promhttp_metric_handler_requests_total" to count
|
||||
// scrapes partitioned by HTTP status code, and a gauge
|
||||
// "promhttp_metric_handler_requests_in_flight" to track the number of
|
||||
// simultaneous scrapes. This function idempotently registers collectors for
|
||||
// both metrics with the provided Registerer. It panics if the registration
|
||||
// fails. The provided metrics are useful to see how many scrapes hit the
|
||||
// monitored target (which could be from different Prometheus servers or other
|
||||
// scrapers), and how often they overlap (which would result in more than one
|
||||
// scrape in flight at the same time). Note that the scrapes-in-flight gauge
|
||||
// will contain the scrape by which it is exposed, while the scrape counter will
|
||||
// only get incremented after the scrape is complete (as only then the status
|
||||
// code is known). For tracking scrape durations, use the
|
||||
// "scrape_duration_seconds" gauge created by the Prometheus server upon each
|
||||
// scrape.
|
||||
func InstrumentMetricHandler(reg prometheus.Registerer, handler http.Handler) http.Handler {
|
||||
cnt := prometheus.NewCounterVec(
|
||||
prometheus.CounterOpts{
|
||||
Name: "promhttp_metric_handler_requests_total",
|
||||
Help: "Total number of scrapes by HTTP status code.",
|
||||
},
|
||||
[]string{"code"},
|
||||
)
|
||||
// Initialize the most likely HTTP status codes.
|
||||
cnt.WithLabelValues("200")
|
||||
cnt.WithLabelValues("500")
|
||||
cnt.WithLabelValues("503")
|
||||
if err := reg.Register(cnt); err != nil {
|
||||
if are, ok := err.(prometheus.AlreadyRegisteredError); ok {
|
||||
cnt = are.ExistingCollector.(*prometheus.CounterVec)
|
||||
} else {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
gge := prometheus.NewGauge(prometheus.GaugeOpts{
|
||||
Name: "promhttp_metric_handler_requests_in_flight",
|
||||
Help: "Current number of scrapes being served.",
|
||||
})
|
||||
if err := reg.Register(gge); err != nil {
|
||||
if are, ok := err.(prometheus.AlreadyRegisteredError); ok {
|
||||
gge = are.ExistingCollector.(prometheus.Gauge)
|
||||
} else {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
return InstrumentHandlerCounter(cnt, InstrumentHandlerInFlight(gge, handler))
|
||||
}
|
||||
|
||||
// HandlerErrorHandling defines how a Handler serving metrics will handle
|
||||
// errors.
|
||||
type HandlerErrorHandling int
|
||||
|
||||
// These constants cause handlers serving metrics to behave as described if
|
||||
// errors are encountered.
|
||||
const (
|
||||
// Serve an HTTP status code 500 upon the first error
|
||||
// encountered. Report the error message in the body. Note that HTTP
|
||||
// errors cannot be served anymore once the beginning of a regular
|
||||
// payload has been sent. Thus, in the (unlikely) case that encoding the
|
||||
// payload into the negotiated wire format fails, serving the response
|
||||
// will simply be aborted. Set an ErrorLog in HandlerOpts to detect
|
||||
// those errors.
|
||||
HTTPErrorOnError HandlerErrorHandling = iota
|
||||
// Ignore errors and try to serve as many metrics as possible. However,
|
||||
// if no metrics can be served, serve an HTTP status code 500 and the
|
||||
// last error message in the body. Only use this in deliberate "best
|
||||
// effort" metrics collection scenarios. In this case, it is highly
|
||||
// recommended to provide other means of detecting errors: By setting an
|
||||
// ErrorLog in HandlerOpts, the errors are logged. By providing a
|
||||
// Registry in HandlerOpts, the exposed metrics include an error counter
|
||||
// "promhttp_metric_handler_errors_total", which can be used for
|
||||
// alerts.
|
||||
ContinueOnError
|
||||
// Panic upon the first error encountered (useful for "crash only" apps).
|
||||
PanicOnError
|
||||
)
|
||||
|
||||
// Logger is the minimal interface HandlerOpts needs for logging. Note that
|
||||
// log.Logger from the standard library implements this interface, and it is
|
||||
// easy to implement by custom loggers, if they don't do so already anyway.
|
||||
type Logger interface {
|
||||
Println(v ...interface{})
|
||||
}
|
||||
|
||||
// HandlerOpts specifies options how to serve metrics via an http.Handler. The
|
||||
// zero value of HandlerOpts is a reasonable default.
|
||||
type HandlerOpts struct {
|
||||
// ErrorLog specifies an optional Logger for errors collecting and
|
||||
// serving metrics. If nil, errors are not logged at all. Note that the
|
||||
// type of a reported error is often prometheus.MultiError, which
|
||||
// formats into a multi-line error string. If you want to avoid the
|
||||
// latter, create a Logger implementation that detects a
|
||||
// prometheus.MultiError and formats the contained errors into one line.
|
||||
ErrorLog Logger
|
||||
// ErrorHandling defines how errors are handled. Note that errors are
|
||||
// logged regardless of the configured ErrorHandling provided ErrorLog
|
||||
// is not nil.
|
||||
ErrorHandling HandlerErrorHandling
|
||||
// If Registry is not nil, it is used to register a metric
|
||||
// "promhttp_metric_handler_errors_total", partitioned by "cause". A
|
||||
// failed registration causes a panic. Note that this error counter is
|
||||
// different from the instrumentation you get from the various
|
||||
// InstrumentHandler... helpers. It counts errors that don't necessarily
|
||||
// result in a non-2xx HTTP status code. There are two typical cases:
|
||||
// (1) Encoding errors that only happen after streaming of the HTTP body
|
||||
// has already started (and the status code 200 has been sent). This
|
||||
// should only happen with custom collectors. (2) Collection errors with
|
||||
// no effect on the HTTP status code because ErrorHandling is set to
|
||||
// ContinueOnError.
|
||||
Registry prometheus.Registerer
|
||||
// If DisableCompression is true, the handler will never compress the
|
||||
// response, even if requested by the client.
|
||||
DisableCompression bool
|
||||
// The number of concurrent HTTP requests is limited to
|
||||
// MaxRequestsInFlight. Additional requests are responded to with 503
|
||||
// Service Unavailable and a suitable message in the body. If
|
||||
// MaxRequestsInFlight is 0 or negative, no limit is applied.
|
||||
MaxRequestsInFlight int
|
||||
// If handling a request takes longer than Timeout, it is responded to
|
||||
// with 503 ServiceUnavailable and a suitable Message. No timeout is
|
||||
// applied if Timeout is 0 or negative. Note that with the current
|
||||
// implementation, reaching the timeout simply ends the HTTP requests as
|
||||
// described above (and even that only if sending of the body hasn't
|
||||
// started yet), while the bulk work of gathering all the metrics keeps
|
||||
// running in the background (with the eventual result to be thrown
|
||||
// away). Until the implementation is improved, it is recommended to
|
||||
// implement a separate timeout in potentially slow Collectors.
|
||||
Timeout time.Duration
|
||||
// If true, the experimental OpenMetrics encoding is added to the
|
||||
// possible options during content negotiation. Note that Prometheus
|
||||
// 2.5.0+ will negotiate OpenMetrics as first priority. OpenMetrics is
|
||||
// the only way to transmit exemplars. However, the move to OpenMetrics
|
||||
// is not completely transparent. Most notably, the values of "quantile"
|
||||
// labels of Summaries and "le" labels of Histograms are formatted with
|
||||
// a trailing ".0" if they would otherwise look like integer numbers
|
||||
// (which changes the identity of the resulting series on the Prometheus
|
||||
// server).
|
||||
EnableOpenMetrics bool
|
||||
}
|
||||
|
||||
// gzipAccepted returns whether the client will accept gzip-encoded content.
|
||||
func gzipAccepted(header http.Header) bool {
|
||||
a := header.Get(acceptEncodingHeader)
|
||||
parts := strings.Split(a, ",")
|
||||
for _, part := range parts {
|
||||
part = strings.TrimSpace(part)
|
||||
if part == "gzip" || strings.HasPrefix(part, "gzip;") {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// httpError removes any content-encoding header and then calls http.Error with
|
||||
// the provided error and http.StatusInternalServerError. Error contents is
|
||||
// supposed to be uncompressed plain text. Same as with a plain http.Error, this
|
||||
// must not be called if the header or any payload has already been sent.
|
||||
func httpError(rsp http.ResponseWriter, err error) {
|
||||
rsp.Header().Del(contentEncodingHeader)
|
||||
http.Error(
|
||||
rsp,
|
||||
"An error has occurred while serving metrics:\n\n"+err.Error(),
|
||||
http.StatusInternalServerError,
|
||||
)
|
||||
}
|
219
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go
generated
vendored
Normal file
219
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go
generated
vendored
Normal file
@ -0,0 +1,219 @@
|
||||
// Copyright 2017 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package promhttp
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"net/http"
|
||||
"net/http/httptrace"
|
||||
"time"
|
||||
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
// The RoundTripperFunc type is an adapter to allow the use of ordinary
|
||||
// functions as RoundTrippers. If f is a function with the appropriate
|
||||
// signature, RountTripperFunc(f) is a RoundTripper that calls f.
|
||||
type RoundTripperFunc func(req *http.Request) (*http.Response, error)
|
||||
|
||||
// RoundTrip implements the RoundTripper interface.
|
||||
func (rt RoundTripperFunc) RoundTrip(r *http.Request) (*http.Response, error) {
|
||||
return rt(r)
|
||||
}
|
||||
|
||||
// InstrumentRoundTripperInFlight is a middleware that wraps the provided
|
||||
// http.RoundTripper. It sets the provided prometheus.Gauge to the number of
|
||||
// requests currently handled by the wrapped http.RoundTripper.
|
||||
//
|
||||
// See the example for ExampleInstrumentRoundTripperDuration for example usage.
|
||||
func InstrumentRoundTripperInFlight(gauge prometheus.Gauge, next http.RoundTripper) RoundTripperFunc {
|
||||
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
|
||||
gauge.Inc()
|
||||
defer gauge.Dec()
|
||||
return next.RoundTrip(r)
|
||||
})
|
||||
}
|
||||
|
||||
// InstrumentRoundTripperCounter is a middleware that wraps the provided
|
||||
// http.RoundTripper to observe the request result with the provided CounterVec.
|
||||
// The CounterVec must have zero, one, or two non-const non-curried labels. For
|
||||
// those, the only allowed label names are "code" and "method". The function
|
||||
// panics otherwise. Partitioning of the CounterVec happens by HTTP status code
|
||||
// and/or HTTP method if the respective instance label names are present in the
|
||||
// CounterVec. For unpartitioned counting, use a CounterVec with zero labels.
|
||||
//
|
||||
// If the wrapped RoundTripper panics or returns a non-nil error, the Counter
|
||||
// is not incremented.
|
||||
//
|
||||
// See the example for ExampleInstrumentRoundTripperDuration for example usage.
|
||||
func InstrumentRoundTripperCounter(counter *prometheus.CounterVec, next http.RoundTripper) RoundTripperFunc {
|
||||
code, method := checkLabels(counter)
|
||||
|
||||
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
|
||||
resp, err := next.RoundTrip(r)
|
||||
if err == nil {
|
||||
counter.With(labels(code, method, r.Method, resp.StatusCode)).Inc()
|
||||
}
|
||||
return resp, err
|
||||
})
|
||||
}
|
||||
|
||||
// InstrumentRoundTripperDuration is a middleware that wraps the provided
|
||||
// http.RoundTripper to observe the request duration with the provided
|
||||
// ObserverVec. The ObserverVec must have zero, one, or two non-const
|
||||
// non-curried labels. For those, the only allowed label names are "code" and
|
||||
// "method". The function panics otherwise. The Observe method of the Observer
|
||||
// in the ObserverVec is called with the request duration in
|
||||
// seconds. Partitioning happens by HTTP status code and/or HTTP method if the
|
||||
// respective instance label names are present in the ObserverVec. For
|
||||
// unpartitioned observations, use an ObserverVec with zero labels. Note that
|
||||
// partitioning of Histograms is expensive and should be used judiciously.
|
||||
//
|
||||
// If the wrapped RoundTripper panics or returns a non-nil error, no values are
|
||||
// reported.
|
||||
//
|
||||
// Note that this method is only guaranteed to never observe negative durations
|
||||
// if used with Go1.9+.
|
||||
func InstrumentRoundTripperDuration(obs prometheus.ObserverVec, next http.RoundTripper) RoundTripperFunc {
|
||||
code, method := checkLabels(obs)
|
||||
|
||||
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
|
||||
start := time.Now()
|
||||
resp, err := next.RoundTrip(r)
|
||||
if err == nil {
|
||||
obs.With(labels(code, method, r.Method, resp.StatusCode)).Observe(time.Since(start).Seconds())
|
||||
}
|
||||
return resp, err
|
||||
})
|
||||
}
|
||||
|
||||
// InstrumentTrace is used to offer flexibility in instrumenting the available
|
||||
// httptrace.ClientTrace hook functions. Each function is passed a float64
|
||||
// representing the time in seconds since the start of the http request. A user
|
||||
// may choose to use separately buckets Histograms, or implement custom
|
||||
// instance labels on a per function basis.
|
||||
type InstrumentTrace struct {
|
||||
GotConn func(float64)
|
||||
PutIdleConn func(float64)
|
||||
GotFirstResponseByte func(float64)
|
||||
Got100Continue func(float64)
|
||||
DNSStart func(float64)
|
||||
DNSDone func(float64)
|
||||
ConnectStart func(float64)
|
||||
ConnectDone func(float64)
|
||||
TLSHandshakeStart func(float64)
|
||||
TLSHandshakeDone func(float64)
|
||||
WroteHeaders func(float64)
|
||||
Wait100Continue func(float64)
|
||||
WroteRequest func(float64)
|
||||
}
|
||||
|
||||
// InstrumentRoundTripperTrace is a middleware that wraps the provided
|
||||
// RoundTripper and reports times to hook functions provided in the
|
||||
// InstrumentTrace struct. Hook functions that are not present in the provided
|
||||
// InstrumentTrace struct are ignored. Times reported to the hook functions are
|
||||
// time since the start of the request. Only with Go1.9+, those times are
|
||||
// guaranteed to never be negative. (Earlier Go versions are not using a
|
||||
// monotonic clock.) Note that partitioning of Histograms is expensive and
|
||||
// should be used judiciously.
|
||||
//
|
||||
// For hook functions that receive an error as an argument, no observations are
|
||||
// made in the event of a non-nil error value.
|
||||
//
|
||||
// See the example for ExampleInstrumentRoundTripperDuration for example usage.
|
||||
func InstrumentRoundTripperTrace(it *InstrumentTrace, next http.RoundTripper) RoundTripperFunc {
|
||||
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
|
||||
start := time.Now()
|
||||
|
||||
trace := &httptrace.ClientTrace{
|
||||
GotConn: func(_ httptrace.GotConnInfo) {
|
||||
if it.GotConn != nil {
|
||||
it.GotConn(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
PutIdleConn: func(err error) {
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if it.PutIdleConn != nil {
|
||||
it.PutIdleConn(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
DNSStart: func(_ httptrace.DNSStartInfo) {
|
||||
if it.DNSStart != nil {
|
||||
it.DNSStart(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
DNSDone: func(_ httptrace.DNSDoneInfo) {
|
||||
if it.DNSDone != nil {
|
||||
it.DNSDone(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
ConnectStart: func(_, _ string) {
|
||||
if it.ConnectStart != nil {
|
||||
it.ConnectStart(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
ConnectDone: func(_, _ string, err error) {
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if it.ConnectDone != nil {
|
||||
it.ConnectDone(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
GotFirstResponseByte: func() {
|
||||
if it.GotFirstResponseByte != nil {
|
||||
it.GotFirstResponseByte(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
Got100Continue: func() {
|
||||
if it.Got100Continue != nil {
|
||||
it.Got100Continue(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
TLSHandshakeStart: func() {
|
||||
if it.TLSHandshakeStart != nil {
|
||||
it.TLSHandshakeStart(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
TLSHandshakeDone: func(_ tls.ConnectionState, err error) {
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if it.TLSHandshakeDone != nil {
|
||||
it.TLSHandshakeDone(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
WroteHeaders: func() {
|
||||
if it.WroteHeaders != nil {
|
||||
it.WroteHeaders(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
Wait100Continue: func() {
|
||||
if it.Wait100Continue != nil {
|
||||
it.Wait100Continue(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
WroteRequest: func(_ httptrace.WroteRequestInfo) {
|
||||
if it.WroteRequest != nil {
|
||||
it.WroteRequest(time.Since(start).Seconds())
|
||||
}
|
||||
},
|
||||
}
|
||||
r = r.WithContext(httptrace.WithClientTrace(r.Context(), trace))
|
||||
|
||||
return next.RoundTrip(r)
|
||||
})
|
||||
}
|
458
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server.go
generated
vendored
Normal file
458
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server.go
generated
vendored
Normal file
@ -0,0 +1,458 @@
|
||||
// Copyright 2017 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package promhttp
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"net/http"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
// magicString is used for the hacky label test in checkLabels. Remove once fixed.
|
||||
const magicString = "zZgWfBxLqvG8kc8IMv3POi2Bb0tZI3vAnBx+gBaFi9FyPzB/CzKUer1yufDa"
|
||||
|
||||
// InstrumentHandlerInFlight is a middleware that wraps the provided
|
||||
// http.Handler. It sets the provided prometheus.Gauge to the number of
|
||||
// requests currently handled by the wrapped http.Handler.
|
||||
//
|
||||
// See the example for InstrumentHandlerDuration for example usage.
|
||||
func InstrumentHandlerInFlight(g prometheus.Gauge, next http.Handler) http.Handler {
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
g.Inc()
|
||||
defer g.Dec()
|
||||
next.ServeHTTP(w, r)
|
||||
})
|
||||
}
|
||||
|
||||
// InstrumentHandlerDuration is a middleware that wraps the provided
|
||||
// http.Handler to observe the request duration with the provided ObserverVec.
|
||||
// The ObserverVec must have valid metric and label names and must have zero,
|
||||
// one, or two non-const non-curried labels. For those, the only allowed label
|
||||
// names are "code" and "method". The function panics otherwise. The Observe
|
||||
// method of the Observer in the ObserverVec is called with the request duration
|
||||
// in seconds. Partitioning happens by HTTP status code and/or HTTP method if
|
||||
// the respective instance label names are present in the ObserverVec. For
|
||||
// unpartitioned observations, use an ObserverVec with zero labels. Note that
|
||||
// partitioning of Histograms is expensive and should be used judiciously.
|
||||
//
|
||||
// If the wrapped Handler does not set a status code, a status code of 200 is assumed.
|
||||
//
|
||||
// If the wrapped Handler panics, no values are reported.
|
||||
//
|
||||
// Note that this method is only guaranteed to never observe negative durations
|
||||
// if used with Go1.9+.
|
||||
func InstrumentHandlerDuration(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
|
||||
code, method := checkLabels(obs)
|
||||
|
||||
if code {
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
now := time.Now()
|
||||
d := newDelegator(w, nil)
|
||||
next.ServeHTTP(d, r)
|
||||
|
||||
obs.With(labels(code, method, r.Method, d.Status())).Observe(time.Since(now).Seconds())
|
||||
})
|
||||
}
|
||||
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
now := time.Now()
|
||||
next.ServeHTTP(w, r)
|
||||
obs.With(labels(code, method, r.Method, 0)).Observe(time.Since(now).Seconds())
|
||||
})
|
||||
}
|
||||
|
||||
// InstrumentHandlerCounter is a middleware that wraps the provided http.Handler
|
||||
// to observe the request result with the provided CounterVec. The CounterVec
|
||||
// must have valid metric and label names and must have zero, one, or two
|
||||
// non-const non-curried labels. For those, the only allowed label names are
|
||||
// "code" and "method". The function panics otherwise. Partitioning of the
|
||||
// CounterVec happens by HTTP status code and/or HTTP method if the respective
|
||||
// instance label names are present in the CounterVec. For unpartitioned
|
||||
// counting, use a CounterVec with zero labels.
|
||||
//
|
||||
// If the wrapped Handler does not set a status code, a status code of 200 is assumed.
|
||||
//
|
||||
// If the wrapped Handler panics, the Counter is not incremented.
|
||||
//
|
||||
// See the example for InstrumentHandlerDuration for example usage.
|
||||
func InstrumentHandlerCounter(counter *prometheus.CounterVec, next http.Handler) http.HandlerFunc {
|
||||
code, method := checkLabels(counter)
|
||||
|
||||
if code {
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
d := newDelegator(w, nil)
|
||||
next.ServeHTTP(d, r)
|
||||
counter.With(labels(code, method, r.Method, d.Status())).Inc()
|
||||
})
|
||||
}
|
||||
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
next.ServeHTTP(w, r)
|
||||
counter.With(labels(code, method, r.Method, 0)).Inc()
|
||||
})
|
||||
}
|
||||
|
||||
// InstrumentHandlerTimeToWriteHeader is a middleware that wraps the provided
|
||||
// http.Handler to observe with the provided ObserverVec the request duration
|
||||
// until the response headers are written. The ObserverVec must have valid
|
||||
// metric and label names and must have zero, one, or two non-const non-curried
|
||||
// labels. For those, the only allowed label names are "code" and "method". The
|
||||
// function panics otherwise. The Observe method of the Observer in the
|
||||
// ObserverVec is called with the request duration in seconds. Partitioning
|
||||
// happens by HTTP status code and/or HTTP method if the respective instance
|
||||
// label names are present in the ObserverVec. For unpartitioned observations,
|
||||
// use an ObserverVec with zero labels. Note that partitioning of Histograms is
|
||||
// expensive and should be used judiciously.
|
||||
//
|
||||
// If the wrapped Handler panics before calling WriteHeader, no value is
|
||||
// reported.
|
||||
//
|
||||
// Note that this method is only guaranteed to never observe negative durations
|
||||
// if used with Go1.9+.
|
||||
//
|
||||
// See the example for InstrumentHandlerDuration for example usage.
|
||||
func InstrumentHandlerTimeToWriteHeader(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
|
||||
code, method := checkLabels(obs)
|
||||
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
now := time.Now()
|
||||
d := newDelegator(w, func(status int) {
|
||||
obs.With(labels(code, method, r.Method, status)).Observe(time.Since(now).Seconds())
|
||||
})
|
||||
next.ServeHTTP(d, r)
|
||||
})
|
||||
}
|
||||
|
||||
// InstrumentHandlerRequestSize is a middleware that wraps the provided
|
||||
// http.Handler to observe the request size with the provided ObserverVec. The
|
||||
// ObserverVec must have valid metric and label names and must have zero, one,
|
||||
// or two non-const non-curried labels. For those, the only allowed label names
|
||||
// are "code" and "method". The function panics otherwise. The Observe method of
|
||||
// the Observer in the ObserverVec is called with the request size in
|
||||
// bytes. Partitioning happens by HTTP status code and/or HTTP method if the
|
||||
// respective instance label names are present in the ObserverVec. For
|
||||
// unpartitioned observations, use an ObserverVec with zero labels. Note that
|
||||
// partitioning of Histograms is expensive and should be used judiciously.
|
||||
//
|
||||
// If the wrapped Handler does not set a status code, a status code of 200 is assumed.
|
||||
//
|
||||
// If the wrapped Handler panics, no values are reported.
|
||||
//
|
||||
// See the example for InstrumentHandlerDuration for example usage.
|
||||
func InstrumentHandlerRequestSize(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
|
||||
code, method := checkLabels(obs)
|
||||
|
||||
if code {
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
d := newDelegator(w, nil)
|
||||
next.ServeHTTP(d, r)
|
||||
size := computeApproximateRequestSize(r)
|
||||
obs.With(labels(code, method, r.Method, d.Status())).Observe(float64(size))
|
||||
})
|
||||
}
|
||||
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
next.ServeHTTP(w, r)
|
||||
size := computeApproximateRequestSize(r)
|
||||
obs.With(labels(code, method, r.Method, 0)).Observe(float64(size))
|
||||
})
|
||||
}
|
||||
|
||||
// InstrumentHandlerResponseSize is a middleware that wraps the provided
|
||||
// http.Handler to observe the response size with the provided ObserverVec. The
|
||||
// ObserverVec must have valid metric and label names and must have zero, one,
|
||||
// or two non-const non-curried labels. For those, the only allowed label names
|
||||
// are "code" and "method". The function panics otherwise. The Observe method of
|
||||
// the Observer in the ObserverVec is called with the response size in
|
||||
// bytes. Partitioning happens by HTTP status code and/or HTTP method if the
|
||||
// respective instance label names are present in the ObserverVec. For
|
||||
// unpartitioned observations, use an ObserverVec with zero labels. Note that
|
||||
// partitioning of Histograms is expensive and should be used judiciously.
|
||||
//
|
||||
// If the wrapped Handler does not set a status code, a status code of 200 is assumed.
|
||||
//
|
||||
// If the wrapped Handler panics, no values are reported.
|
||||
//
|
||||
// See the example for InstrumentHandlerDuration for example usage.
|
||||
func InstrumentHandlerResponseSize(obs prometheus.ObserverVec, next http.Handler) http.Handler {
|
||||
code, method := checkLabels(obs)
|
||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
d := newDelegator(w, nil)
|
||||
next.ServeHTTP(d, r)
|
||||
obs.With(labels(code, method, r.Method, d.Status())).Observe(float64(d.Written()))
|
||||
})
|
||||
}
|
||||
|
||||
// checkLabels returns whether the provided Collector has a non-const,
|
||||
// non-curried label named "code" and/or "method". It panics if the provided
|
||||
// Collector does not have a Desc or has more than one Desc or its Desc is
|
||||
// invalid. It also panics if the Collector has any non-const, non-curried
|
||||
// labels that are not named "code" or "method".
|
||||
func checkLabels(c prometheus.Collector) (code bool, method bool) {
|
||||
// TODO(beorn7): Remove this hacky way to check for instance labels
|
||||
// once Descriptors can have their dimensionality queried.
|
||||
var (
|
||||
desc *prometheus.Desc
|
||||
m prometheus.Metric
|
||||
pm dto.Metric
|
||||
lvs []string
|
||||
)
|
||||
|
||||
// Get the Desc from the Collector.
|
||||
descc := make(chan *prometheus.Desc, 1)
|
||||
c.Describe(descc)
|
||||
|
||||
select {
|
||||
case desc = <-descc:
|
||||
default:
|
||||
panic("no description provided by collector")
|
||||
}
|
||||
select {
|
||||
case <-descc:
|
||||
panic("more than one description provided by collector")
|
||||
default:
|
||||
}
|
||||
|
||||
close(descc)
|
||||
|
||||
// Make sure the Collector has a valid Desc by registering it with a
|
||||
// temporary registry.
|
||||
prometheus.NewRegistry().MustRegister(c)
|
||||
|
||||
// Create a ConstMetric with the Desc. Since we don't know how many
|
||||
// variable labels there are, try for as long as it needs.
|
||||
for err := errors.New("dummy"); err != nil; lvs = append(lvs, magicString) {
|
||||
m, err = prometheus.NewConstMetric(desc, prometheus.UntypedValue, 0, lvs...)
|
||||
}
|
||||
|
||||
// Write out the metric into a proto message and look at the labels.
|
||||
// If the value is not the magicString, it is a constLabel, which doesn't interest us.
|
||||
// If the label is curried, it doesn't interest us.
|
||||
// In all other cases, only "code" or "method" is allowed.
|
||||
if err := m.Write(&pm); err != nil {
|
||||
panic("error checking metric for labels")
|
||||
}
|
||||
for _, label := range pm.Label {
|
||||
name, value := label.GetName(), label.GetValue()
|
||||
if value != magicString || isLabelCurried(c, name) {
|
||||
continue
|
||||
}
|
||||
switch name {
|
||||
case "code":
|
||||
code = true
|
||||
case "method":
|
||||
method = true
|
||||
default:
|
||||
panic("metric partitioned with non-supported labels")
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func isLabelCurried(c prometheus.Collector, label string) bool {
|
||||
// This is even hackier than the label test above.
|
||||
// We essentially try to curry again and see if it works.
|
||||
// But for that, we need to type-convert to the two
|
||||
// types we use here, ObserverVec or *CounterVec.
|
||||
switch v := c.(type) {
|
||||
case *prometheus.CounterVec:
|
||||
if _, err := v.CurryWith(prometheus.Labels{label: "dummy"}); err == nil {
|
||||
return false
|
||||
}
|
||||
case prometheus.ObserverVec:
|
||||
if _, err := v.CurryWith(prometheus.Labels{label: "dummy"}); err == nil {
|
||||
return false
|
||||
}
|
||||
default:
|
||||
panic("unsupported metric vec type")
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// emptyLabels is a one-time allocation for non-partitioned metrics to avoid
|
||||
// unnecessary allocations on each request.
|
||||
var emptyLabels = prometheus.Labels{}
|
||||
|
||||
func labels(code, method bool, reqMethod string, status int) prometheus.Labels {
|
||||
if !(code || method) {
|
||||
return emptyLabels
|
||||
}
|
||||
labels := prometheus.Labels{}
|
||||
|
||||
if code {
|
||||
labels["code"] = sanitizeCode(status)
|
||||
}
|
||||
if method {
|
||||
labels["method"] = sanitizeMethod(reqMethod)
|
||||
}
|
||||
|
||||
return labels
|
||||
}
|
||||
|
||||
func computeApproximateRequestSize(r *http.Request) int {
|
||||
s := 0
|
||||
if r.URL != nil {
|
||||
s += len(r.URL.String())
|
||||
}
|
||||
|
||||
s += len(r.Method)
|
||||
s += len(r.Proto)
|
||||
for name, values := range r.Header {
|
||||
s += len(name)
|
||||
for _, value := range values {
|
||||
s += len(value)
|
||||
}
|
||||
}
|
||||
s += len(r.Host)
|
||||
|
||||
// N.B. r.Form and r.MultipartForm are assumed to be included in r.URL.
|
||||
|
||||
if r.ContentLength != -1 {
|
||||
s += int(r.ContentLength)
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func sanitizeMethod(m string) string {
|
||||
switch m {
|
||||
case "GET", "get":
|
||||
return "get"
|
||||
case "PUT", "put":
|
||||
return "put"
|
||||
case "HEAD", "head":
|
||||
return "head"
|
||||
case "POST", "post":
|
||||
return "post"
|
||||
case "DELETE", "delete":
|
||||
return "delete"
|
||||
case "CONNECT", "connect":
|
||||
return "connect"
|
||||
case "OPTIONS", "options":
|
||||
return "options"
|
||||
case "NOTIFY", "notify":
|
||||
return "notify"
|
||||
default:
|
||||
return strings.ToLower(m)
|
||||
}
|
||||
}
|
||||
|
||||
// If the wrapped http.Handler has not set a status code, i.e. the value is
|
||||
// currently 0, santizeCode will return 200, for consistency with behavior in
|
||||
// the stdlib.
|
||||
func sanitizeCode(s int) string {
|
||||
switch s {
|
||||
case 100:
|
||||
return "100"
|
||||
case 101:
|
||||
return "101"
|
||||
|
||||
case 200, 0:
|
||||
return "200"
|
||||
case 201:
|
||||
return "201"
|
||||
case 202:
|
||||
return "202"
|
||||
case 203:
|
||||
return "203"
|
||||
case 204:
|
||||
return "204"
|
||||
case 205:
|
||||
return "205"
|
||||
case 206:
|
||||
return "206"
|
||||
|
||||
case 300:
|
||||
return "300"
|
||||
case 301:
|
||||
return "301"
|
||||
case 302:
|
||||
return "302"
|
||||
case 304:
|
||||
return "304"
|
||||
case 305:
|
||||
return "305"
|
||||
case 307:
|
||||
return "307"
|
||||
|
||||
case 400:
|
||||
return "400"
|
||||
case 401:
|
||||
return "401"
|
||||
case 402:
|
||||
return "402"
|
||||
case 403:
|
||||
return "403"
|
||||
case 404:
|
||||
return "404"
|
||||
case 405:
|
||||
return "405"
|
||||
case 406:
|
||||
return "406"
|
||||
case 407:
|
||||
return "407"
|
||||
case 408:
|
||||
return "408"
|
||||
case 409:
|
||||
return "409"
|
||||
case 410:
|
||||
return "410"
|
||||
case 411:
|
||||
return "411"
|
||||
case 412:
|
||||
return "412"
|
||||
case 413:
|
||||
return "413"
|
||||
case 414:
|
||||
return "414"
|
||||
case 415:
|
||||
return "415"
|
||||
case 416:
|
||||
return "416"
|
||||
case 417:
|
||||
return "417"
|
||||
case 418:
|
||||
return "418"
|
||||
|
||||
case 500:
|
||||
return "500"
|
||||
case 501:
|
||||
return "501"
|
||||
case 502:
|
||||
return "502"
|
||||
case 503:
|
||||
return "503"
|
||||
case 504:
|
||||
return "504"
|
||||
case 505:
|
||||
return "505"
|
||||
|
||||
case 428:
|
||||
return "428"
|
||||
case 429:
|
||||
return "429"
|
||||
case 431:
|
||||
return "431"
|
||||
case 511:
|
||||
return "511"
|
||||
|
||||
default:
|
||||
return strconv.Itoa(s)
|
||||
}
|
||||
}
|
950
vendor/github.com/prometheus/client_golang/prometheus/registry.go
generated
vendored
Normal file
950
vendor/github.com/prometheus/client_golang/prometheus/registry.go
generated
vendored
Normal file
@ -0,0 +1,950 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"runtime"
|
||||
"sort"
|
||||
"strings"
|
||||
"sync"
|
||||
"unicode/utf8"
|
||||
|
||||
"github.com/cespare/xxhash/v2"
|
||||
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
|
||||
"github.com/golang/protobuf/proto"
|
||||
"github.com/prometheus/common/expfmt"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
|
||||
"github.com/prometheus/client_golang/prometheus/internal"
|
||||
)
|
||||
|
||||
const (
|
||||
// Capacity for the channel to collect metrics and descriptors.
|
||||
capMetricChan = 1000
|
||||
capDescChan = 10
|
||||
)
|
||||
|
||||
// DefaultRegisterer and DefaultGatherer are the implementations of the
|
||||
// Registerer and Gatherer interface a number of convenience functions in this
|
||||
// package act on. Initially, both variables point to the same Registry, which
|
||||
// has a process collector (currently on Linux only, see NewProcessCollector)
|
||||
// and a Go collector (see NewGoCollector, in particular the note about
|
||||
// stop-the-world implication with Go versions older than 1.9) already
|
||||
// registered. This approach to keep default instances as global state mirrors
|
||||
// the approach of other packages in the Go standard library. Note that there
|
||||
// are caveats. Change the variables with caution and only if you understand the
|
||||
// consequences. Users who want to avoid global state altogether should not use
|
||||
// the convenience functions and act on custom instances instead.
|
||||
var (
|
||||
defaultRegistry = NewRegistry()
|
||||
DefaultRegisterer Registerer = defaultRegistry
|
||||
DefaultGatherer Gatherer = defaultRegistry
|
||||
)
|
||||
|
||||
func init() {
|
||||
MustRegister(NewProcessCollector(ProcessCollectorOpts{}))
|
||||
MustRegister(NewGoCollector())
|
||||
}
|
||||
|
||||
// NewRegistry creates a new vanilla Registry without any Collectors
|
||||
// pre-registered.
|
||||
func NewRegistry() *Registry {
|
||||
return &Registry{
|
||||
collectorsByID: map[uint64]Collector{},
|
||||
descIDs: map[uint64]struct{}{},
|
||||
dimHashesByName: map[string]uint64{},
|
||||
}
|
||||
}
|
||||
|
||||
// NewPedanticRegistry returns a registry that checks during collection if each
|
||||
// collected Metric is consistent with its reported Desc, and if the Desc has
|
||||
// actually been registered with the registry. Unchecked Collectors (those whose
|
||||
// Describe method does not yield any descriptors) are excluded from the check.
|
||||
//
|
||||
// Usually, a Registry will be happy as long as the union of all collected
|
||||
// Metrics is consistent and valid even if some metrics are not consistent with
|
||||
// their own Desc or a Desc provided by their registered Collector. Well-behaved
|
||||
// Collectors and Metrics will only provide consistent Descs. This Registry is
|
||||
// useful to test the implementation of Collectors and Metrics.
|
||||
func NewPedanticRegistry() *Registry {
|
||||
r := NewRegistry()
|
||||
r.pedanticChecksEnabled = true
|
||||
return r
|
||||
}
|
||||
|
||||
// Registerer is the interface for the part of a registry in charge of
|
||||
// registering and unregistering. Users of custom registries should use
|
||||
// Registerer as type for registration purposes (rather than the Registry type
|
||||
// directly). In that way, they are free to use custom Registerer implementation
|
||||
// (e.g. for testing purposes).
|
||||
type Registerer interface {
|
||||
// Register registers a new Collector to be included in metrics
|
||||
// collection. It returns an error if the descriptors provided by the
|
||||
// Collector are invalid or if they — in combination with descriptors of
|
||||
// already registered Collectors — do not fulfill the consistency and
|
||||
// uniqueness criteria described in the documentation of metric.Desc.
|
||||
//
|
||||
// If the provided Collector is equal to a Collector already registered
|
||||
// (which includes the case of re-registering the same Collector), the
|
||||
// returned error is an instance of AlreadyRegisteredError, which
|
||||
// contains the previously registered Collector.
|
||||
//
|
||||
// A Collector whose Describe method does not yield any Desc is treated
|
||||
// as unchecked. Registration will always succeed. No check for
|
||||
// re-registering (see previous paragraph) is performed. Thus, the
|
||||
// caller is responsible for not double-registering the same unchecked
|
||||
// Collector, and for providing a Collector that will not cause
|
||||
// inconsistent metrics on collection. (This would lead to scrape
|
||||
// errors.)
|
||||
Register(Collector) error
|
||||
// MustRegister works like Register but registers any number of
|
||||
// Collectors and panics upon the first registration that causes an
|
||||
// error.
|
||||
MustRegister(...Collector)
|
||||
// Unregister unregisters the Collector that equals the Collector passed
|
||||
// in as an argument. (Two Collectors are considered equal if their
|
||||
// Describe method yields the same set of descriptors.) The function
|
||||
// returns whether a Collector was unregistered. Note that an unchecked
|
||||
// Collector cannot be unregistered (as its Describe method does not
|
||||
// yield any descriptor).
|
||||
//
|
||||
// Note that even after unregistering, it will not be possible to
|
||||
// register a new Collector that is inconsistent with the unregistered
|
||||
// Collector, e.g. a Collector collecting metrics with the same name but
|
||||
// a different help string. The rationale here is that the same registry
|
||||
// instance must only collect consistent metrics throughout its
|
||||
// lifetime.
|
||||
Unregister(Collector) bool
|
||||
}
|
||||
|
||||
// Gatherer is the interface for the part of a registry in charge of gathering
|
||||
// the collected metrics into a number of MetricFamilies. The Gatherer interface
|
||||
// comes with the same general implication as described for the Registerer
|
||||
// interface.
|
||||
type Gatherer interface {
|
||||
// Gather calls the Collect method of the registered Collectors and then
|
||||
// gathers the collected metrics into a lexicographically sorted slice
|
||||
// of uniquely named MetricFamily protobufs. Gather ensures that the
|
||||
// returned slice is valid and self-consistent so that it can be used
|
||||
// for valid exposition. As an exception to the strict consistency
|
||||
// requirements described for metric.Desc, Gather will tolerate
|
||||
// different sets of label names for metrics of the same metric family.
|
||||
//
|
||||
// Even if an error occurs, Gather attempts to gather as many metrics as
|
||||
// possible. Hence, if a non-nil error is returned, the returned
|
||||
// MetricFamily slice could be nil (in case of a fatal error that
|
||||
// prevented any meaningful metric collection) or contain a number of
|
||||
// MetricFamily protobufs, some of which might be incomplete, and some
|
||||
// might be missing altogether. The returned error (which might be a
|
||||
// MultiError) explains the details. Note that this is mostly useful for
|
||||
// debugging purposes. If the gathered protobufs are to be used for
|
||||
// exposition in actual monitoring, it is almost always better to not
|
||||
// expose an incomplete result and instead disregard the returned
|
||||
// MetricFamily protobufs in case the returned error is non-nil.
|
||||
Gather() ([]*dto.MetricFamily, error)
|
||||
}
|
||||
|
||||
// Register registers the provided Collector with the DefaultRegisterer.
|
||||
//
|
||||
// Register is a shortcut for DefaultRegisterer.Register(c). See there for more
|
||||
// details.
|
||||
func Register(c Collector) error {
|
||||
return DefaultRegisterer.Register(c)
|
||||
}
|
||||
|
||||
// MustRegister registers the provided Collectors with the DefaultRegisterer and
|
||||
// panics if any error occurs.
|
||||
//
|
||||
// MustRegister is a shortcut for DefaultRegisterer.MustRegister(cs...). See
|
||||
// there for more details.
|
||||
func MustRegister(cs ...Collector) {
|
||||
DefaultRegisterer.MustRegister(cs...)
|
||||
}
|
||||
|
||||
// Unregister removes the registration of the provided Collector from the
|
||||
// DefaultRegisterer.
|
||||
//
|
||||
// Unregister is a shortcut for DefaultRegisterer.Unregister(c). See there for
|
||||
// more details.
|
||||
func Unregister(c Collector) bool {
|
||||
return DefaultRegisterer.Unregister(c)
|
||||
}
|
||||
|
||||
// GathererFunc turns a function into a Gatherer.
|
||||
type GathererFunc func() ([]*dto.MetricFamily, error)
|
||||
|
||||
// Gather implements Gatherer.
|
||||
func (gf GathererFunc) Gather() ([]*dto.MetricFamily, error) {
|
||||
return gf()
|
||||
}
|
||||
|
||||
// AlreadyRegisteredError is returned by the Register method if the Collector to
|
||||
// be registered has already been registered before, or a different Collector
|
||||
// that collects the same metrics has been registered before. Registration fails
|
||||
// in that case, but you can detect from the kind of error what has
|
||||
// happened. The error contains fields for the existing Collector and the
|
||||
// (rejected) new Collector that equals the existing one. This can be used to
|
||||
// find out if an equal Collector has been registered before and switch over to
|
||||
// using the old one, as demonstrated in the example.
|
||||
type AlreadyRegisteredError struct {
|
||||
ExistingCollector, NewCollector Collector
|
||||
}
|
||||
|
||||
func (err AlreadyRegisteredError) Error() string {
|
||||
return "duplicate metrics collector registration attempted"
|
||||
}
|
||||
|
||||
// MultiError is a slice of errors implementing the error interface. It is used
|
||||
// by a Gatherer to report multiple errors during MetricFamily gathering.
|
||||
type MultiError []error
|
||||
|
||||
// Error formats the contained errors as a bullet point list, preceded by the
|
||||
// total number of errors. Note that this results in a multi-line string.
|
||||
func (errs MultiError) Error() string {
|
||||
if len(errs) == 0 {
|
||||
return ""
|
||||
}
|
||||
buf := &bytes.Buffer{}
|
||||
fmt.Fprintf(buf, "%d error(s) occurred:", len(errs))
|
||||
for _, err := range errs {
|
||||
fmt.Fprintf(buf, "\n* %s", err)
|
||||
}
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// Append appends the provided error if it is not nil.
|
||||
func (errs *MultiError) Append(err error) {
|
||||
if err != nil {
|
||||
*errs = append(*errs, err)
|
||||
}
|
||||
}
|
||||
|
||||
// MaybeUnwrap returns nil if len(errs) is 0. It returns the first and only
|
||||
// contained error as error if len(errs is 1). In all other cases, it returns
|
||||
// the MultiError directly. This is helpful for returning a MultiError in a way
|
||||
// that only uses the MultiError if needed.
|
||||
func (errs MultiError) MaybeUnwrap() error {
|
||||
switch len(errs) {
|
||||
case 0:
|
||||
return nil
|
||||
case 1:
|
||||
return errs[0]
|
||||
default:
|
||||
return errs
|
||||
}
|
||||
}
|
||||
|
||||
// Registry registers Prometheus collectors, collects their metrics, and gathers
|
||||
// them into MetricFamilies for exposition. It implements both Registerer and
|
||||
// Gatherer. The zero value is not usable. Create instances with NewRegistry or
|
||||
// NewPedanticRegistry.
|
||||
type Registry struct {
|
||||
mtx sync.RWMutex
|
||||
collectorsByID map[uint64]Collector // ID is a hash of the descIDs.
|
||||
descIDs map[uint64]struct{}
|
||||
dimHashesByName map[string]uint64
|
||||
uncheckedCollectors []Collector
|
||||
pedanticChecksEnabled bool
|
||||
}
|
||||
|
||||
// Register implements Registerer.
|
||||
func (r *Registry) Register(c Collector) error {
|
||||
var (
|
||||
descChan = make(chan *Desc, capDescChan)
|
||||
newDescIDs = map[uint64]struct{}{}
|
||||
newDimHashesByName = map[string]uint64{}
|
||||
collectorID uint64 // All desc IDs XOR'd together.
|
||||
duplicateDescErr error
|
||||
)
|
||||
go func() {
|
||||
c.Describe(descChan)
|
||||
close(descChan)
|
||||
}()
|
||||
r.mtx.Lock()
|
||||
defer func() {
|
||||
// Drain channel in case of premature return to not leak a goroutine.
|
||||
for range descChan {
|
||||
}
|
||||
r.mtx.Unlock()
|
||||
}()
|
||||
// Conduct various tests...
|
||||
for desc := range descChan {
|
||||
|
||||
// Is the descriptor valid at all?
|
||||
if desc.err != nil {
|
||||
return fmt.Errorf("descriptor %s is invalid: %s", desc, desc.err)
|
||||
}
|
||||
|
||||
// Is the descID unique?
|
||||
// (In other words: Is the fqName + constLabel combination unique?)
|
||||
if _, exists := r.descIDs[desc.id]; exists {
|
||||
duplicateDescErr = fmt.Errorf("descriptor %s already exists with the same fully-qualified name and const label values", desc)
|
||||
}
|
||||
// If it is not a duplicate desc in this collector, XOR it to
|
||||
// the collectorID. (We allow duplicate descs within the same
|
||||
// collector, but their existence must be a no-op.)
|
||||
if _, exists := newDescIDs[desc.id]; !exists {
|
||||
newDescIDs[desc.id] = struct{}{}
|
||||
collectorID ^= desc.id
|
||||
}
|
||||
|
||||
// Are all the label names and the help string consistent with
|
||||
// previous descriptors of the same name?
|
||||
// First check existing descriptors...
|
||||
if dimHash, exists := r.dimHashesByName[desc.fqName]; exists {
|
||||
if dimHash != desc.dimHash {
|
||||
return fmt.Errorf("a previously registered descriptor with the same fully-qualified name as %s has different label names or a different help string", desc)
|
||||
}
|
||||
} else {
|
||||
// ...then check the new descriptors already seen.
|
||||
if dimHash, exists := newDimHashesByName[desc.fqName]; exists {
|
||||
if dimHash != desc.dimHash {
|
||||
return fmt.Errorf("descriptors reported by collector have inconsistent label names or help strings for the same fully-qualified name, offender is %s", desc)
|
||||
}
|
||||
} else {
|
||||
newDimHashesByName[desc.fqName] = desc.dimHash
|
||||
}
|
||||
}
|
||||
}
|
||||
// A Collector yielding no Desc at all is considered unchecked.
|
||||
if len(newDescIDs) == 0 {
|
||||
r.uncheckedCollectors = append(r.uncheckedCollectors, c)
|
||||
return nil
|
||||
}
|
||||
if existing, exists := r.collectorsByID[collectorID]; exists {
|
||||
switch e := existing.(type) {
|
||||
case *wrappingCollector:
|
||||
return AlreadyRegisteredError{
|
||||
ExistingCollector: e.unwrapRecursively(),
|
||||
NewCollector: c,
|
||||
}
|
||||
default:
|
||||
return AlreadyRegisteredError{
|
||||
ExistingCollector: e,
|
||||
NewCollector: c,
|
||||
}
|
||||
}
|
||||
}
|
||||
// If the collectorID is new, but at least one of the descs existed
|
||||
// before, we are in trouble.
|
||||
if duplicateDescErr != nil {
|
||||
return duplicateDescErr
|
||||
}
|
||||
|
||||
// Only after all tests have passed, actually register.
|
||||
r.collectorsByID[collectorID] = c
|
||||
for hash := range newDescIDs {
|
||||
r.descIDs[hash] = struct{}{}
|
||||
}
|
||||
for name, dimHash := range newDimHashesByName {
|
||||
r.dimHashesByName[name] = dimHash
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Unregister implements Registerer.
|
||||
func (r *Registry) Unregister(c Collector) bool {
|
||||
var (
|
||||
descChan = make(chan *Desc, capDescChan)
|
||||
descIDs = map[uint64]struct{}{}
|
||||
collectorID uint64 // All desc IDs XOR'd together.
|
||||
)
|
||||
go func() {
|
||||
c.Describe(descChan)
|
||||
close(descChan)
|
||||
}()
|
||||
for desc := range descChan {
|
||||
if _, exists := descIDs[desc.id]; !exists {
|
||||
collectorID ^= desc.id
|
||||
descIDs[desc.id] = struct{}{}
|
||||
}
|
||||
}
|
||||
|
||||
r.mtx.RLock()
|
||||
if _, exists := r.collectorsByID[collectorID]; !exists {
|
||||
r.mtx.RUnlock()
|
||||
return false
|
||||
}
|
||||
r.mtx.RUnlock()
|
||||
|
||||
r.mtx.Lock()
|
||||
defer r.mtx.Unlock()
|
||||
|
||||
delete(r.collectorsByID, collectorID)
|
||||
for id := range descIDs {
|
||||
delete(r.descIDs, id)
|
||||
}
|
||||
// dimHashesByName is left untouched as those must be consistent
|
||||
// throughout the lifetime of a program.
|
||||
return true
|
||||
}
|
||||
|
||||
// MustRegister implements Registerer.
|
||||
func (r *Registry) MustRegister(cs ...Collector) {
|
||||
for _, c := range cs {
|
||||
if err := r.Register(c); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Gather implements Gatherer.
|
||||
func (r *Registry) Gather() ([]*dto.MetricFamily, error) {
|
||||
var (
|
||||
checkedMetricChan = make(chan Metric, capMetricChan)
|
||||
uncheckedMetricChan = make(chan Metric, capMetricChan)
|
||||
metricHashes = map[uint64]struct{}{}
|
||||
wg sync.WaitGroup
|
||||
errs MultiError // The collected errors to return in the end.
|
||||
registeredDescIDs map[uint64]struct{} // Only used for pedantic checks
|
||||
)
|
||||
|
||||
r.mtx.RLock()
|
||||
goroutineBudget := len(r.collectorsByID) + len(r.uncheckedCollectors)
|
||||
metricFamiliesByName := make(map[string]*dto.MetricFamily, len(r.dimHashesByName))
|
||||
checkedCollectors := make(chan Collector, len(r.collectorsByID))
|
||||
uncheckedCollectors := make(chan Collector, len(r.uncheckedCollectors))
|
||||
for _, collector := range r.collectorsByID {
|
||||
checkedCollectors <- collector
|
||||
}
|
||||
for _, collector := range r.uncheckedCollectors {
|
||||
uncheckedCollectors <- collector
|
||||
}
|
||||
// In case pedantic checks are enabled, we have to copy the map before
|
||||
// giving up the RLock.
|
||||
if r.pedanticChecksEnabled {
|
||||
registeredDescIDs = make(map[uint64]struct{}, len(r.descIDs))
|
||||
for id := range r.descIDs {
|
||||
registeredDescIDs[id] = struct{}{}
|
||||
}
|
||||
}
|
||||
r.mtx.RUnlock()
|
||||
|
||||
wg.Add(goroutineBudget)
|
||||
|
||||
collectWorker := func() {
|
||||
for {
|
||||
select {
|
||||
case collector := <-checkedCollectors:
|
||||
collector.Collect(checkedMetricChan)
|
||||
case collector := <-uncheckedCollectors:
|
||||
collector.Collect(uncheckedMetricChan)
|
||||
default:
|
||||
return
|
||||
}
|
||||
wg.Done()
|
||||
}
|
||||
}
|
||||
|
||||
// Start the first worker now to make sure at least one is running.
|
||||
go collectWorker()
|
||||
goroutineBudget--
|
||||
|
||||
// Close checkedMetricChan and uncheckedMetricChan once all collectors
|
||||
// are collected.
|
||||
go func() {
|
||||
wg.Wait()
|
||||
close(checkedMetricChan)
|
||||
close(uncheckedMetricChan)
|
||||
}()
|
||||
|
||||
// Drain checkedMetricChan and uncheckedMetricChan in case of premature return.
|
||||
defer func() {
|
||||
if checkedMetricChan != nil {
|
||||
for range checkedMetricChan {
|
||||
}
|
||||
}
|
||||
if uncheckedMetricChan != nil {
|
||||
for range uncheckedMetricChan {
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
// Copy the channel references so we can nil them out later to remove
|
||||
// them from the select statements below.
|
||||
cmc := checkedMetricChan
|
||||
umc := uncheckedMetricChan
|
||||
|
||||
for {
|
||||
select {
|
||||
case metric, ok := <-cmc:
|
||||
if !ok {
|
||||
cmc = nil
|
||||
break
|
||||
}
|
||||
errs.Append(processMetric(
|
||||
metric, metricFamiliesByName,
|
||||
metricHashes,
|
||||
registeredDescIDs,
|
||||
))
|
||||
case metric, ok := <-umc:
|
||||
if !ok {
|
||||
umc = nil
|
||||
break
|
||||
}
|
||||
errs.Append(processMetric(
|
||||
metric, metricFamiliesByName,
|
||||
metricHashes,
|
||||
nil,
|
||||
))
|
||||
default:
|
||||
if goroutineBudget <= 0 || len(checkedCollectors)+len(uncheckedCollectors) == 0 {
|
||||
// All collectors are already being worked on or
|
||||
// we have already as many goroutines started as
|
||||
// there are collectors. Do the same as above,
|
||||
// just without the default.
|
||||
select {
|
||||
case metric, ok := <-cmc:
|
||||
if !ok {
|
||||
cmc = nil
|
||||
break
|
||||
}
|
||||
errs.Append(processMetric(
|
||||
metric, metricFamiliesByName,
|
||||
metricHashes,
|
||||
registeredDescIDs,
|
||||
))
|
||||
case metric, ok := <-umc:
|
||||
if !ok {
|
||||
umc = nil
|
||||
break
|
||||
}
|
||||
errs.Append(processMetric(
|
||||
metric, metricFamiliesByName,
|
||||
metricHashes,
|
||||
nil,
|
||||
))
|
||||
}
|
||||
break
|
||||
}
|
||||
// Start more workers.
|
||||
go collectWorker()
|
||||
goroutineBudget--
|
||||
runtime.Gosched()
|
||||
}
|
||||
// Once both checkedMetricChan and uncheckdMetricChan are closed
|
||||
// and drained, the contraption above will nil out cmc and umc,
|
||||
// and then we can leave the collect loop here.
|
||||
if cmc == nil && umc == nil {
|
||||
break
|
||||
}
|
||||
}
|
||||
return internal.NormalizeMetricFamilies(metricFamiliesByName), errs.MaybeUnwrap()
|
||||
}
|
||||
|
||||
// WriteToTextfile calls Gather on the provided Gatherer, encodes the result in the
|
||||
// Prometheus text format, and writes it to a temporary file. Upon success, the
|
||||
// temporary file is renamed to the provided filename.
|
||||
//
|
||||
// This is intended for use with the textfile collector of the node exporter.
|
||||
// Note that the node exporter expects the filename to be suffixed with ".prom".
|
||||
func WriteToTextfile(filename string, g Gatherer) error {
|
||||
tmp, err := ioutil.TempFile(filepath.Dir(filename), filepath.Base(filename))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer os.Remove(tmp.Name())
|
||||
|
||||
mfs, err := g.Gather()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
for _, mf := range mfs {
|
||||
if _, err := expfmt.MetricFamilyToText(tmp, mf); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
if err := tmp.Close(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if err := os.Chmod(tmp.Name(), 0644); err != nil {
|
||||
return err
|
||||
}
|
||||
return os.Rename(tmp.Name(), filename)
|
||||
}
|
||||
|
||||
// processMetric is an internal helper method only used by the Gather method.
|
||||
func processMetric(
|
||||
metric Metric,
|
||||
metricFamiliesByName map[string]*dto.MetricFamily,
|
||||
metricHashes map[uint64]struct{},
|
||||
registeredDescIDs map[uint64]struct{},
|
||||
) error {
|
||||
desc := metric.Desc()
|
||||
// Wrapped metrics collected by an unchecked Collector can have an
|
||||
// invalid Desc.
|
||||
if desc.err != nil {
|
||||
return desc.err
|
||||
}
|
||||
dtoMetric := &dto.Metric{}
|
||||
if err := metric.Write(dtoMetric); err != nil {
|
||||
return fmt.Errorf("error collecting metric %v: %s", desc, err)
|
||||
}
|
||||
metricFamily, ok := metricFamiliesByName[desc.fqName]
|
||||
if ok { // Existing name.
|
||||
if metricFamily.GetHelp() != desc.help {
|
||||
return fmt.Errorf(
|
||||
"collected metric %s %s has help %q but should have %q",
|
||||
desc.fqName, dtoMetric, desc.help, metricFamily.GetHelp(),
|
||||
)
|
||||
}
|
||||
// TODO(beorn7): Simplify switch once Desc has type.
|
||||
switch metricFamily.GetType() {
|
||||
case dto.MetricType_COUNTER:
|
||||
if dtoMetric.Counter == nil {
|
||||
return fmt.Errorf(
|
||||
"collected metric %s %s should be a Counter",
|
||||
desc.fqName, dtoMetric,
|
||||
)
|
||||
}
|
||||
case dto.MetricType_GAUGE:
|
||||
if dtoMetric.Gauge == nil {
|
||||
return fmt.Errorf(
|
||||
"collected metric %s %s should be a Gauge",
|
||||
desc.fqName, dtoMetric,
|
||||
)
|
||||
}
|
||||
case dto.MetricType_SUMMARY:
|
||||
if dtoMetric.Summary == nil {
|
||||
return fmt.Errorf(
|
||||
"collected metric %s %s should be a Summary",
|
||||
desc.fqName, dtoMetric,
|
||||
)
|
||||
}
|
||||
case dto.MetricType_UNTYPED:
|
||||
if dtoMetric.Untyped == nil {
|
||||
return fmt.Errorf(
|
||||
"collected metric %s %s should be Untyped",
|
||||
desc.fqName, dtoMetric,
|
||||
)
|
||||
}
|
||||
case dto.MetricType_HISTOGRAM:
|
||||
if dtoMetric.Histogram == nil {
|
||||
return fmt.Errorf(
|
||||
"collected metric %s %s should be a Histogram",
|
||||
desc.fqName, dtoMetric,
|
||||
)
|
||||
}
|
||||
default:
|
||||
panic("encountered MetricFamily with invalid type")
|
||||
}
|
||||
} else { // New name.
|
||||
metricFamily = &dto.MetricFamily{}
|
||||
metricFamily.Name = proto.String(desc.fqName)
|
||||
metricFamily.Help = proto.String(desc.help)
|
||||
// TODO(beorn7): Simplify switch once Desc has type.
|
||||
switch {
|
||||
case dtoMetric.Gauge != nil:
|
||||
metricFamily.Type = dto.MetricType_GAUGE.Enum()
|
||||
case dtoMetric.Counter != nil:
|
||||
metricFamily.Type = dto.MetricType_COUNTER.Enum()
|
||||
case dtoMetric.Summary != nil:
|
||||
metricFamily.Type = dto.MetricType_SUMMARY.Enum()
|
||||
case dtoMetric.Untyped != nil:
|
||||
metricFamily.Type = dto.MetricType_UNTYPED.Enum()
|
||||
case dtoMetric.Histogram != nil:
|
||||
metricFamily.Type = dto.MetricType_HISTOGRAM.Enum()
|
||||
default:
|
||||
return fmt.Errorf("empty metric collected: %s", dtoMetric)
|
||||
}
|
||||
if err := checkSuffixCollisions(metricFamily, metricFamiliesByName); err != nil {
|
||||
return err
|
||||
}
|
||||
metricFamiliesByName[desc.fqName] = metricFamily
|
||||
}
|
||||
if err := checkMetricConsistency(metricFamily, dtoMetric, metricHashes); err != nil {
|
||||
return err
|
||||
}
|
||||
if registeredDescIDs != nil {
|
||||
// Is the desc registered at all?
|
||||
if _, exist := registeredDescIDs[desc.id]; !exist {
|
||||
return fmt.Errorf(
|
||||
"collected metric %s %s with unregistered descriptor %s",
|
||||
metricFamily.GetName(), dtoMetric, desc,
|
||||
)
|
||||
}
|
||||
if err := checkDescConsistency(metricFamily, dtoMetric, desc); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
metricFamily.Metric = append(metricFamily.Metric, dtoMetric)
|
||||
return nil
|
||||
}
|
||||
|
||||
// Gatherers is a slice of Gatherer instances that implements the Gatherer
|
||||
// interface itself. Its Gather method calls Gather on all Gatherers in the
|
||||
// slice in order and returns the merged results. Errors returned from the
|
||||
// Gather calls are all returned in a flattened MultiError. Duplicate and
|
||||
// inconsistent Metrics are skipped (first occurrence in slice order wins) and
|
||||
// reported in the returned error.
|
||||
//
|
||||
// Gatherers can be used to merge the Gather results from multiple
|
||||
// Registries. It also provides a way to directly inject existing MetricFamily
|
||||
// protobufs into the gathering by creating a custom Gatherer with a Gather
|
||||
// method that simply returns the existing MetricFamily protobufs. Note that no
|
||||
// registration is involved (in contrast to Collector registration), so
|
||||
// obviously registration-time checks cannot happen. Any inconsistencies between
|
||||
// the gathered MetricFamilies are reported as errors by the Gather method, and
|
||||
// inconsistent Metrics are dropped. Invalid parts of the MetricFamilies
|
||||
// (e.g. syntactically invalid metric or label names) will go undetected.
|
||||
type Gatherers []Gatherer
|
||||
|
||||
// Gather implements Gatherer.
|
||||
func (gs Gatherers) Gather() ([]*dto.MetricFamily, error) {
|
||||
var (
|
||||
metricFamiliesByName = map[string]*dto.MetricFamily{}
|
||||
metricHashes = map[uint64]struct{}{}
|
||||
errs MultiError // The collected errors to return in the end.
|
||||
)
|
||||
|
||||
for i, g := range gs {
|
||||
mfs, err := g.Gather()
|
||||
if err != nil {
|
||||
if multiErr, ok := err.(MultiError); ok {
|
||||
for _, err := range multiErr {
|
||||
errs = append(errs, fmt.Errorf("[from Gatherer #%d] %s", i+1, err))
|
||||
}
|
||||
} else {
|
||||
errs = append(errs, fmt.Errorf("[from Gatherer #%d] %s", i+1, err))
|
||||
}
|
||||
}
|
||||
for _, mf := range mfs {
|
||||
existingMF, exists := metricFamiliesByName[mf.GetName()]
|
||||
if exists {
|
||||
if existingMF.GetHelp() != mf.GetHelp() {
|
||||
errs = append(errs, fmt.Errorf(
|
||||
"gathered metric family %s has help %q but should have %q",
|
||||
mf.GetName(), mf.GetHelp(), existingMF.GetHelp(),
|
||||
))
|
||||
continue
|
||||
}
|
||||
if existingMF.GetType() != mf.GetType() {
|
||||
errs = append(errs, fmt.Errorf(
|
||||
"gathered metric family %s has type %s but should have %s",
|
||||
mf.GetName(), mf.GetType(), existingMF.GetType(),
|
||||
))
|
||||
continue
|
||||
}
|
||||
} else {
|
||||
existingMF = &dto.MetricFamily{}
|
||||
existingMF.Name = mf.Name
|
||||
existingMF.Help = mf.Help
|
||||
existingMF.Type = mf.Type
|
||||
if err := checkSuffixCollisions(existingMF, metricFamiliesByName); err != nil {
|
||||
errs = append(errs, err)
|
||||
continue
|
||||
}
|
||||
metricFamiliesByName[mf.GetName()] = existingMF
|
||||
}
|
||||
for _, m := range mf.Metric {
|
||||
if err := checkMetricConsistency(existingMF, m, metricHashes); err != nil {
|
||||
errs = append(errs, err)
|
||||
continue
|
||||
}
|
||||
existingMF.Metric = append(existingMF.Metric, m)
|
||||
}
|
||||
}
|
||||
}
|
||||
return internal.NormalizeMetricFamilies(metricFamiliesByName), errs.MaybeUnwrap()
|
||||
}
|
||||
|
||||
// checkSuffixCollisions checks for collisions with the “magic” suffixes the
|
||||
// Prometheus text format and the internal metric representation of the
|
||||
// Prometheus server add while flattening Summaries and Histograms.
|
||||
func checkSuffixCollisions(mf *dto.MetricFamily, mfs map[string]*dto.MetricFamily) error {
|
||||
var (
|
||||
newName = mf.GetName()
|
||||
newType = mf.GetType()
|
||||
newNameWithoutSuffix = ""
|
||||
)
|
||||
switch {
|
||||
case strings.HasSuffix(newName, "_count"):
|
||||
newNameWithoutSuffix = newName[:len(newName)-6]
|
||||
case strings.HasSuffix(newName, "_sum"):
|
||||
newNameWithoutSuffix = newName[:len(newName)-4]
|
||||
case strings.HasSuffix(newName, "_bucket"):
|
||||
newNameWithoutSuffix = newName[:len(newName)-7]
|
||||
}
|
||||
if newNameWithoutSuffix != "" {
|
||||
if existingMF, ok := mfs[newNameWithoutSuffix]; ok {
|
||||
switch existingMF.GetType() {
|
||||
case dto.MetricType_SUMMARY:
|
||||
if !strings.HasSuffix(newName, "_bucket") {
|
||||
return fmt.Errorf(
|
||||
"collected metric named %q collides with previously collected summary named %q",
|
||||
newName, newNameWithoutSuffix,
|
||||
)
|
||||
}
|
||||
case dto.MetricType_HISTOGRAM:
|
||||
return fmt.Errorf(
|
||||
"collected metric named %q collides with previously collected histogram named %q",
|
||||
newName, newNameWithoutSuffix,
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
if newType == dto.MetricType_SUMMARY || newType == dto.MetricType_HISTOGRAM {
|
||||
if _, ok := mfs[newName+"_count"]; ok {
|
||||
return fmt.Errorf(
|
||||
"collected histogram or summary named %q collides with previously collected metric named %q",
|
||||
newName, newName+"_count",
|
||||
)
|
||||
}
|
||||
if _, ok := mfs[newName+"_sum"]; ok {
|
||||
return fmt.Errorf(
|
||||
"collected histogram or summary named %q collides with previously collected metric named %q",
|
||||
newName, newName+"_sum",
|
||||
)
|
||||
}
|
||||
}
|
||||
if newType == dto.MetricType_HISTOGRAM {
|
||||
if _, ok := mfs[newName+"_bucket"]; ok {
|
||||
return fmt.Errorf(
|
||||
"collected histogram named %q collides with previously collected metric named %q",
|
||||
newName, newName+"_bucket",
|
||||
)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// checkMetricConsistency checks if the provided Metric is consistent with the
|
||||
// provided MetricFamily. It also hashes the Metric labels and the MetricFamily
|
||||
// name. If the resulting hash is already in the provided metricHashes, an error
|
||||
// is returned. If not, it is added to metricHashes.
|
||||
func checkMetricConsistency(
|
||||
metricFamily *dto.MetricFamily,
|
||||
dtoMetric *dto.Metric,
|
||||
metricHashes map[uint64]struct{},
|
||||
) error {
|
||||
name := metricFamily.GetName()
|
||||
|
||||
// Type consistency with metric family.
|
||||
if metricFamily.GetType() == dto.MetricType_GAUGE && dtoMetric.Gauge == nil ||
|
||||
metricFamily.GetType() == dto.MetricType_COUNTER && dtoMetric.Counter == nil ||
|
||||
metricFamily.GetType() == dto.MetricType_SUMMARY && dtoMetric.Summary == nil ||
|
||||
metricFamily.GetType() == dto.MetricType_HISTOGRAM && dtoMetric.Histogram == nil ||
|
||||
metricFamily.GetType() == dto.MetricType_UNTYPED && dtoMetric.Untyped == nil {
|
||||
return fmt.Errorf(
|
||||
"collected metric %q { %s} is not a %s",
|
||||
name, dtoMetric, metricFamily.GetType(),
|
||||
)
|
||||
}
|
||||
|
||||
previousLabelName := ""
|
||||
for _, labelPair := range dtoMetric.GetLabel() {
|
||||
labelName := labelPair.GetName()
|
||||
if labelName == previousLabelName {
|
||||
return fmt.Errorf(
|
||||
"collected metric %q { %s} has two or more labels with the same name: %s",
|
||||
name, dtoMetric, labelName,
|
||||
)
|
||||
}
|
||||
if !checkLabelName(labelName) {
|
||||
return fmt.Errorf(
|
||||
"collected metric %q { %s} has a label with an invalid name: %s",
|
||||
name, dtoMetric, labelName,
|
||||
)
|
||||
}
|
||||
if dtoMetric.Summary != nil && labelName == quantileLabel {
|
||||
return fmt.Errorf(
|
||||
"collected metric %q { %s} must not have an explicit %q label",
|
||||
name, dtoMetric, quantileLabel,
|
||||
)
|
||||
}
|
||||
if !utf8.ValidString(labelPair.GetValue()) {
|
||||
return fmt.Errorf(
|
||||
"collected metric %q { %s} has a label named %q whose value is not utf8: %#v",
|
||||
name, dtoMetric, labelName, labelPair.GetValue())
|
||||
}
|
||||
previousLabelName = labelName
|
||||
}
|
||||
|
||||
// Is the metric unique (i.e. no other metric with the same name and the same labels)?
|
||||
h := xxhash.New()
|
||||
h.WriteString(name)
|
||||
h.Write(separatorByteSlice)
|
||||
// Make sure label pairs are sorted. We depend on it for the consistency
|
||||
// check.
|
||||
if !sort.IsSorted(labelPairSorter(dtoMetric.Label)) {
|
||||
// We cannot sort dtoMetric.Label in place as it is immutable by contract.
|
||||
copiedLabels := make([]*dto.LabelPair, len(dtoMetric.Label))
|
||||
copy(copiedLabels, dtoMetric.Label)
|
||||
sort.Sort(labelPairSorter(copiedLabels))
|
||||
dtoMetric.Label = copiedLabels
|
||||
}
|
||||
for _, lp := range dtoMetric.Label {
|
||||
h.WriteString(lp.GetName())
|
||||
h.Write(separatorByteSlice)
|
||||
h.WriteString(lp.GetValue())
|
||||
h.Write(separatorByteSlice)
|
||||
}
|
||||
hSum := h.Sum64()
|
||||
if _, exists := metricHashes[hSum]; exists {
|
||||
return fmt.Errorf(
|
||||
"collected metric %q { %s} was collected before with the same name and label values",
|
||||
name, dtoMetric,
|
||||
)
|
||||
}
|
||||
metricHashes[hSum] = struct{}{}
|
||||
return nil
|
||||
}
|
||||
|
||||
func checkDescConsistency(
|
||||
metricFamily *dto.MetricFamily,
|
||||
dtoMetric *dto.Metric,
|
||||
desc *Desc,
|
||||
) error {
|
||||
// Desc help consistency with metric family help.
|
||||
if metricFamily.GetHelp() != desc.help {
|
||||
return fmt.Errorf(
|
||||
"collected metric %s %s has help %q but should have %q",
|
||||
metricFamily.GetName(), dtoMetric, metricFamily.GetHelp(), desc.help,
|
||||
)
|
||||
}
|
||||
|
||||
// Is the desc consistent with the content of the metric?
|
||||
lpsFromDesc := make([]*dto.LabelPair, len(desc.constLabelPairs), len(dtoMetric.Label))
|
||||
copy(lpsFromDesc, desc.constLabelPairs)
|
||||
for _, l := range desc.variableLabels {
|
||||
lpsFromDesc = append(lpsFromDesc, &dto.LabelPair{
|
||||
Name: proto.String(l),
|
||||
})
|
||||
}
|
||||
if len(lpsFromDesc) != len(dtoMetric.Label) {
|
||||
return fmt.Errorf(
|
||||
"labels in collected metric %s %s are inconsistent with descriptor %s",
|
||||
metricFamily.GetName(), dtoMetric, desc,
|
||||
)
|
||||
}
|
||||
sort.Sort(labelPairSorter(lpsFromDesc))
|
||||
for i, lpFromDesc := range lpsFromDesc {
|
||||
lpFromMetric := dtoMetric.Label[i]
|
||||
if lpFromDesc.GetName() != lpFromMetric.GetName() ||
|
||||
lpFromDesc.Value != nil && lpFromDesc.GetValue() != lpFromMetric.GetValue() {
|
||||
return fmt.Errorf(
|
||||
"labels in collected metric %s %s are inconsistent with descriptor %s",
|
||||
metricFamily.GetName(), dtoMetric, desc,
|
||||
)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
737
vendor/github.com/prometheus/client_golang/prometheus/summary.go
generated
vendored
Normal file
737
vendor/github.com/prometheus/client_golang/prometheus/summary.go
generated
vendored
Normal file
@ -0,0 +1,737 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"runtime"
|
||||
"sort"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/beorn7/perks/quantile"
|
||||
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
|
||||
"github.com/golang/protobuf/proto"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// quantileLabel is used for the label that defines the quantile in a
|
||||
// summary.
|
||||
const quantileLabel = "quantile"
|
||||
|
||||
// A Summary captures individual observations from an event or sample stream and
|
||||
// summarizes them in a manner similar to traditional summary statistics: 1. sum
|
||||
// of observations, 2. observation count, 3. rank estimations.
|
||||
//
|
||||
// A typical use-case is the observation of request latencies. By default, a
|
||||
// Summary provides the median, the 90th and the 99th percentile of the latency
|
||||
// as rank estimations. However, the default behavior will change in the
|
||||
// upcoming v1.0.0 of the library. There will be no rank estimations at all by
|
||||
// default. For a sane transition, it is recommended to set the desired rank
|
||||
// estimations explicitly.
|
||||
//
|
||||
// Note that the rank estimations cannot be aggregated in a meaningful way with
|
||||
// the Prometheus query language (i.e. you cannot average or add them). If you
|
||||
// need aggregatable quantiles (e.g. you want the 99th percentile latency of all
|
||||
// queries served across all instances of a service), consider the Histogram
|
||||
// metric type. See the Prometheus documentation for more details.
|
||||
//
|
||||
// To create Summary instances, use NewSummary.
|
||||
type Summary interface {
|
||||
Metric
|
||||
Collector
|
||||
|
||||
// Observe adds a single observation to the summary.
|
||||
Observe(float64)
|
||||
}
|
||||
|
||||
var errQuantileLabelNotAllowed = fmt.Errorf(
|
||||
"%q is not allowed as label name in summaries", quantileLabel,
|
||||
)
|
||||
|
||||
// Default values for SummaryOpts.
|
||||
const (
|
||||
// DefMaxAge is the default duration for which observations stay
|
||||
// relevant.
|
||||
DefMaxAge time.Duration = 10 * time.Minute
|
||||
// DefAgeBuckets is the default number of buckets used to calculate the
|
||||
// age of observations.
|
||||
DefAgeBuckets = 5
|
||||
// DefBufCap is the standard buffer size for collecting Summary observations.
|
||||
DefBufCap = 500
|
||||
)
|
||||
|
||||
// SummaryOpts bundles the options for creating a Summary metric. It is
|
||||
// mandatory to set Name to a non-empty string. While all other fields are
|
||||
// optional and can safely be left at their zero value, it is recommended to set
|
||||
// a help string and to explicitly set the Objectives field to the desired value
|
||||
// as the default value will change in the upcoming v1.0.0 of the library.
|
||||
type SummaryOpts struct {
|
||||
// Namespace, Subsystem, and Name are components of the fully-qualified
|
||||
// name of the Summary (created by joining these components with
|
||||
// "_"). Only Name is mandatory, the others merely help structuring the
|
||||
// name. Note that the fully-qualified name of the Summary must be a
|
||||
// valid Prometheus metric name.
|
||||
Namespace string
|
||||
Subsystem string
|
||||
Name string
|
||||
|
||||
// Help provides information about this Summary.
|
||||
//
|
||||
// Metrics with the same fully-qualified name must have the same Help
|
||||
// string.
|
||||
Help string
|
||||
|
||||
// ConstLabels are used to attach fixed labels to this metric. Metrics
|
||||
// with the same fully-qualified name must have the same label names in
|
||||
// their ConstLabels.
|
||||
//
|
||||
// Due to the way a Summary is represented in the Prometheus text format
|
||||
// and how it is handled by the Prometheus server internally, “quantile”
|
||||
// is an illegal label name. Construction of a Summary or SummaryVec
|
||||
// will panic if this label name is used in ConstLabels.
|
||||
//
|
||||
// ConstLabels are only used rarely. In particular, do not use them to
|
||||
// attach the same labels to all your metrics. Those use cases are
|
||||
// better covered by target labels set by the scraping Prometheus
|
||||
// server, or by one specific metric (e.g. a build_info or a
|
||||
// machine_role metric). See also
|
||||
// https://prometheus.io/docs/instrumenting/writing_exporters/#target-labels-not-static-scraped-labels
|
||||
ConstLabels Labels
|
||||
|
||||
// Objectives defines the quantile rank estimates with their respective
|
||||
// absolute error. If Objectives[q] = e, then the value reported for q
|
||||
// will be the φ-quantile value for some φ between q-e and q+e. The
|
||||
// default value is an empty map, resulting in a summary without
|
||||
// quantiles.
|
||||
Objectives map[float64]float64
|
||||
|
||||
// MaxAge defines the duration for which an observation stays relevant
|
||||
// for the summary. Must be positive. The default value is DefMaxAge.
|
||||
MaxAge time.Duration
|
||||
|
||||
// AgeBuckets is the number of buckets used to exclude observations that
|
||||
// are older than MaxAge from the summary. A higher number has a
|
||||
// resource penalty, so only increase it if the higher resolution is
|
||||
// really required. For very high observation rates, you might want to
|
||||
// reduce the number of age buckets. With only one age bucket, you will
|
||||
// effectively see a complete reset of the summary each time MaxAge has
|
||||
// passed. The default value is DefAgeBuckets.
|
||||
AgeBuckets uint32
|
||||
|
||||
// BufCap defines the default sample stream buffer size. The default
|
||||
// value of DefBufCap should suffice for most uses. If there is a need
|
||||
// to increase the value, a multiple of 500 is recommended (because that
|
||||
// is the internal buffer size of the underlying package
|
||||
// "github.com/bmizerany/perks/quantile").
|
||||
BufCap uint32
|
||||
}
|
||||
|
||||
// Problem with the sliding-window decay algorithm... The Merge method of
|
||||
// perk/quantile is actually not working as advertised - and it might be
|
||||
// unfixable, as the underlying algorithm is apparently not capable of merging
|
||||
// summaries in the first place. To avoid using Merge, we are currently adding
|
||||
// observations to _each_ age bucket, i.e. the effort to add a sample is
|
||||
// essentially multiplied by the number of age buckets. When rotating age
|
||||
// buckets, we empty the previous head stream. On scrape time, we simply take
|
||||
// the quantiles from the head stream (no merging required). Result: More effort
|
||||
// on observation time, less effort on scrape time, which is exactly the
|
||||
// opposite of what we try to accomplish, but at least the results are correct.
|
||||
//
|
||||
// The quite elegant previous contraption to merge the age buckets efficiently
|
||||
// on scrape time (see code up commit 6b9530d72ea715f0ba612c0120e6e09fbf1d49d0)
|
||||
// can't be used anymore.
|
||||
|
||||
// NewSummary creates a new Summary based on the provided SummaryOpts.
|
||||
func NewSummary(opts SummaryOpts) Summary {
|
||||
return newSummary(
|
||||
NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
nil,
|
||||
opts.ConstLabels,
|
||||
),
|
||||
opts,
|
||||
)
|
||||
}
|
||||
|
||||
func newSummary(desc *Desc, opts SummaryOpts, labelValues ...string) Summary {
|
||||
if len(desc.variableLabels) != len(labelValues) {
|
||||
panic(makeInconsistentCardinalityError(desc.fqName, desc.variableLabels, labelValues))
|
||||
}
|
||||
|
||||
for _, n := range desc.variableLabels {
|
||||
if n == quantileLabel {
|
||||
panic(errQuantileLabelNotAllowed)
|
||||
}
|
||||
}
|
||||
for _, lp := range desc.constLabelPairs {
|
||||
if lp.GetName() == quantileLabel {
|
||||
panic(errQuantileLabelNotAllowed)
|
||||
}
|
||||
}
|
||||
|
||||
if opts.Objectives == nil {
|
||||
opts.Objectives = map[float64]float64{}
|
||||
}
|
||||
|
||||
if opts.MaxAge < 0 {
|
||||
panic(fmt.Errorf("illegal max age MaxAge=%v", opts.MaxAge))
|
||||
}
|
||||
if opts.MaxAge == 0 {
|
||||
opts.MaxAge = DefMaxAge
|
||||
}
|
||||
|
||||
if opts.AgeBuckets == 0 {
|
||||
opts.AgeBuckets = DefAgeBuckets
|
||||
}
|
||||
|
||||
if opts.BufCap == 0 {
|
||||
opts.BufCap = DefBufCap
|
||||
}
|
||||
|
||||
if len(opts.Objectives) == 0 {
|
||||
// Use the lock-free implementation of a Summary without objectives.
|
||||
s := &noObjectivesSummary{
|
||||
desc: desc,
|
||||
labelPairs: MakeLabelPairs(desc, labelValues),
|
||||
counts: [2]*summaryCounts{{}, {}},
|
||||
}
|
||||
s.init(s) // Init self-collection.
|
||||
return s
|
||||
}
|
||||
|
||||
s := &summary{
|
||||
desc: desc,
|
||||
|
||||
objectives: opts.Objectives,
|
||||
sortedObjectives: make([]float64, 0, len(opts.Objectives)),
|
||||
|
||||
labelPairs: MakeLabelPairs(desc, labelValues),
|
||||
|
||||
hotBuf: make([]float64, 0, opts.BufCap),
|
||||
coldBuf: make([]float64, 0, opts.BufCap),
|
||||
streamDuration: opts.MaxAge / time.Duration(opts.AgeBuckets),
|
||||
}
|
||||
s.headStreamExpTime = time.Now().Add(s.streamDuration)
|
||||
s.hotBufExpTime = s.headStreamExpTime
|
||||
|
||||
for i := uint32(0); i < opts.AgeBuckets; i++ {
|
||||
s.streams = append(s.streams, s.newStream())
|
||||
}
|
||||
s.headStream = s.streams[0]
|
||||
|
||||
for qu := range s.objectives {
|
||||
s.sortedObjectives = append(s.sortedObjectives, qu)
|
||||
}
|
||||
sort.Float64s(s.sortedObjectives)
|
||||
|
||||
s.init(s) // Init self-collection.
|
||||
return s
|
||||
}
|
||||
|
||||
type summary struct {
|
||||
selfCollector
|
||||
|
||||
bufMtx sync.Mutex // Protects hotBuf and hotBufExpTime.
|
||||
mtx sync.Mutex // Protects every other moving part.
|
||||
// Lock bufMtx before mtx if both are needed.
|
||||
|
||||
desc *Desc
|
||||
|
||||
objectives map[float64]float64
|
||||
sortedObjectives []float64
|
||||
|
||||
labelPairs []*dto.LabelPair
|
||||
|
||||
sum float64
|
||||
cnt uint64
|
||||
|
||||
hotBuf, coldBuf []float64
|
||||
|
||||
streams []*quantile.Stream
|
||||
streamDuration time.Duration
|
||||
headStream *quantile.Stream
|
||||
headStreamIdx int
|
||||
headStreamExpTime, hotBufExpTime time.Time
|
||||
}
|
||||
|
||||
func (s *summary) Desc() *Desc {
|
||||
return s.desc
|
||||
}
|
||||
|
||||
func (s *summary) Observe(v float64) {
|
||||
s.bufMtx.Lock()
|
||||
defer s.bufMtx.Unlock()
|
||||
|
||||
now := time.Now()
|
||||
if now.After(s.hotBufExpTime) {
|
||||
s.asyncFlush(now)
|
||||
}
|
||||
s.hotBuf = append(s.hotBuf, v)
|
||||
if len(s.hotBuf) == cap(s.hotBuf) {
|
||||
s.asyncFlush(now)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *summary) Write(out *dto.Metric) error {
|
||||
sum := &dto.Summary{}
|
||||
qs := make([]*dto.Quantile, 0, len(s.objectives))
|
||||
|
||||
s.bufMtx.Lock()
|
||||
s.mtx.Lock()
|
||||
// Swap bufs even if hotBuf is empty to set new hotBufExpTime.
|
||||
s.swapBufs(time.Now())
|
||||
s.bufMtx.Unlock()
|
||||
|
||||
s.flushColdBuf()
|
||||
sum.SampleCount = proto.Uint64(s.cnt)
|
||||
sum.SampleSum = proto.Float64(s.sum)
|
||||
|
||||
for _, rank := range s.sortedObjectives {
|
||||
var q float64
|
||||
if s.headStream.Count() == 0 {
|
||||
q = math.NaN()
|
||||
} else {
|
||||
q = s.headStream.Query(rank)
|
||||
}
|
||||
qs = append(qs, &dto.Quantile{
|
||||
Quantile: proto.Float64(rank),
|
||||
Value: proto.Float64(q),
|
||||
})
|
||||
}
|
||||
|
||||
s.mtx.Unlock()
|
||||
|
||||
if len(qs) > 0 {
|
||||
sort.Sort(quantSort(qs))
|
||||
}
|
||||
sum.Quantile = qs
|
||||
|
||||
out.Summary = sum
|
||||
out.Label = s.labelPairs
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *summary) newStream() *quantile.Stream {
|
||||
return quantile.NewTargeted(s.objectives)
|
||||
}
|
||||
|
||||
// asyncFlush needs bufMtx locked.
|
||||
func (s *summary) asyncFlush(now time.Time) {
|
||||
s.mtx.Lock()
|
||||
s.swapBufs(now)
|
||||
|
||||
// Unblock the original goroutine that was responsible for the mutation
|
||||
// that triggered the compaction. But hold onto the global non-buffer
|
||||
// state mutex until the operation finishes.
|
||||
go func() {
|
||||
s.flushColdBuf()
|
||||
s.mtx.Unlock()
|
||||
}()
|
||||
}
|
||||
|
||||
// rotateStreams needs mtx AND bufMtx locked.
|
||||
func (s *summary) maybeRotateStreams() {
|
||||
for !s.hotBufExpTime.Equal(s.headStreamExpTime) {
|
||||
s.headStream.Reset()
|
||||
s.headStreamIdx++
|
||||
if s.headStreamIdx >= len(s.streams) {
|
||||
s.headStreamIdx = 0
|
||||
}
|
||||
s.headStream = s.streams[s.headStreamIdx]
|
||||
s.headStreamExpTime = s.headStreamExpTime.Add(s.streamDuration)
|
||||
}
|
||||
}
|
||||
|
||||
// flushColdBuf needs mtx locked.
|
||||
func (s *summary) flushColdBuf() {
|
||||
for _, v := range s.coldBuf {
|
||||
for _, stream := range s.streams {
|
||||
stream.Insert(v)
|
||||
}
|
||||
s.cnt++
|
||||
s.sum += v
|
||||
}
|
||||
s.coldBuf = s.coldBuf[0:0]
|
||||
s.maybeRotateStreams()
|
||||
}
|
||||
|
||||
// swapBufs needs mtx AND bufMtx locked, coldBuf must be empty.
|
||||
func (s *summary) swapBufs(now time.Time) {
|
||||
if len(s.coldBuf) != 0 {
|
||||
panic("coldBuf is not empty")
|
||||
}
|
||||
s.hotBuf, s.coldBuf = s.coldBuf, s.hotBuf
|
||||
// hotBuf is now empty and gets new expiration set.
|
||||
for now.After(s.hotBufExpTime) {
|
||||
s.hotBufExpTime = s.hotBufExpTime.Add(s.streamDuration)
|
||||
}
|
||||
}
|
||||
|
||||
type summaryCounts struct {
|
||||
// sumBits contains the bits of the float64 representing the sum of all
|
||||
// observations. sumBits and count have to go first in the struct to
|
||||
// guarantee alignment for atomic operations.
|
||||
// http://golang.org/pkg/sync/atomic/#pkg-note-BUG
|
||||
sumBits uint64
|
||||
count uint64
|
||||
}
|
||||
|
||||
type noObjectivesSummary struct {
|
||||
// countAndHotIdx enables lock-free writes with use of atomic updates.
|
||||
// The most significant bit is the hot index [0 or 1] of the count field
|
||||
// below. Observe calls update the hot one. All remaining bits count the
|
||||
// number of Observe calls. Observe starts by incrementing this counter,
|
||||
// and finish by incrementing the count field in the respective
|
||||
// summaryCounts, as a marker for completion.
|
||||
//
|
||||
// Calls of the Write method (which are non-mutating reads from the
|
||||
// perspective of the summary) swap the hot–cold under the writeMtx
|
||||
// lock. A cooldown is awaited (while locked) by comparing the number of
|
||||
// observations with the initiation count. Once they match, then the
|
||||
// last observation on the now cool one has completed. All cool fields must
|
||||
// be merged into the new hot before releasing writeMtx.
|
||||
|
||||
// Fields with atomic access first! See alignment constraint:
|
||||
// http://golang.org/pkg/sync/atomic/#pkg-note-BUG
|
||||
countAndHotIdx uint64
|
||||
|
||||
selfCollector
|
||||
desc *Desc
|
||||
writeMtx sync.Mutex // Only used in the Write method.
|
||||
|
||||
// Two counts, one is "hot" for lock-free observations, the other is
|
||||
// "cold" for writing out a dto.Metric. It has to be an array of
|
||||
// pointers to guarantee 64bit alignment of the histogramCounts, see
|
||||
// http://golang.org/pkg/sync/atomic/#pkg-note-BUG.
|
||||
counts [2]*summaryCounts
|
||||
|
||||
labelPairs []*dto.LabelPair
|
||||
}
|
||||
|
||||
func (s *noObjectivesSummary) Desc() *Desc {
|
||||
return s.desc
|
||||
}
|
||||
|
||||
func (s *noObjectivesSummary) Observe(v float64) {
|
||||
// We increment h.countAndHotIdx so that the counter in the lower
|
||||
// 63 bits gets incremented. At the same time, we get the new value
|
||||
// back, which we can use to find the currently-hot counts.
|
||||
n := atomic.AddUint64(&s.countAndHotIdx, 1)
|
||||
hotCounts := s.counts[n>>63]
|
||||
|
||||
for {
|
||||
oldBits := atomic.LoadUint64(&hotCounts.sumBits)
|
||||
newBits := math.Float64bits(math.Float64frombits(oldBits) + v)
|
||||
if atomic.CompareAndSwapUint64(&hotCounts.sumBits, oldBits, newBits) {
|
||||
break
|
||||
}
|
||||
}
|
||||
// Increment count last as we take it as a signal that the observation
|
||||
// is complete.
|
||||
atomic.AddUint64(&hotCounts.count, 1)
|
||||
}
|
||||
|
||||
func (s *noObjectivesSummary) Write(out *dto.Metric) error {
|
||||
// For simplicity, we protect this whole method by a mutex. It is not in
|
||||
// the hot path, i.e. Observe is called much more often than Write. The
|
||||
// complication of making Write lock-free isn't worth it, if possible at
|
||||
// all.
|
||||
s.writeMtx.Lock()
|
||||
defer s.writeMtx.Unlock()
|
||||
|
||||
// Adding 1<<63 switches the hot index (from 0 to 1 or from 1 to 0)
|
||||
// without touching the count bits. See the struct comments for a full
|
||||
// description of the algorithm.
|
||||
n := atomic.AddUint64(&s.countAndHotIdx, 1<<63)
|
||||
// count is contained unchanged in the lower 63 bits.
|
||||
count := n & ((1 << 63) - 1)
|
||||
// The most significant bit tells us which counts is hot. The complement
|
||||
// is thus the cold one.
|
||||
hotCounts := s.counts[n>>63]
|
||||
coldCounts := s.counts[(^n)>>63]
|
||||
|
||||
// Await cooldown.
|
||||
for count != atomic.LoadUint64(&coldCounts.count) {
|
||||
runtime.Gosched() // Let observations get work done.
|
||||
}
|
||||
|
||||
sum := &dto.Summary{
|
||||
SampleCount: proto.Uint64(count),
|
||||
SampleSum: proto.Float64(math.Float64frombits(atomic.LoadUint64(&coldCounts.sumBits))),
|
||||
}
|
||||
|
||||
out.Summary = sum
|
||||
out.Label = s.labelPairs
|
||||
|
||||
// Finally add all the cold counts to the new hot counts and reset the cold counts.
|
||||
atomic.AddUint64(&hotCounts.count, count)
|
||||
atomic.StoreUint64(&coldCounts.count, 0)
|
||||
for {
|
||||
oldBits := atomic.LoadUint64(&hotCounts.sumBits)
|
||||
newBits := math.Float64bits(math.Float64frombits(oldBits) + sum.GetSampleSum())
|
||||
if atomic.CompareAndSwapUint64(&hotCounts.sumBits, oldBits, newBits) {
|
||||
atomic.StoreUint64(&coldCounts.sumBits, 0)
|
||||
break
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type quantSort []*dto.Quantile
|
||||
|
||||
func (s quantSort) Len() int {
|
||||
return len(s)
|
||||
}
|
||||
|
||||
func (s quantSort) Swap(i, j int) {
|
||||
s[i], s[j] = s[j], s[i]
|
||||
}
|
||||
|
||||
func (s quantSort) Less(i, j int) bool {
|
||||
return s[i].GetQuantile() < s[j].GetQuantile()
|
||||
}
|
||||
|
||||
// SummaryVec is a Collector that bundles a set of Summaries that all share the
|
||||
// same Desc, but have different values for their variable labels. This is used
|
||||
// if you want to count the same thing partitioned by various dimensions
|
||||
// (e.g. HTTP request latencies, partitioned by status code and method). Create
|
||||
// instances with NewSummaryVec.
|
||||
type SummaryVec struct {
|
||||
*MetricVec
|
||||
}
|
||||
|
||||
// NewSummaryVec creates a new SummaryVec based on the provided SummaryOpts and
|
||||
// partitioned by the given label names.
|
||||
//
|
||||
// Due to the way a Summary is represented in the Prometheus text format and how
|
||||
// it is handled by the Prometheus server internally, “quantile” is an illegal
|
||||
// label name. NewSummaryVec will panic if this label name is used.
|
||||
func NewSummaryVec(opts SummaryOpts, labelNames []string) *SummaryVec {
|
||||
for _, ln := range labelNames {
|
||||
if ln == quantileLabel {
|
||||
panic(errQuantileLabelNotAllowed)
|
||||
}
|
||||
}
|
||||
desc := NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
labelNames,
|
||||
opts.ConstLabels,
|
||||
)
|
||||
return &SummaryVec{
|
||||
MetricVec: NewMetricVec(desc, func(lvs ...string) Metric {
|
||||
return newSummary(desc, opts, lvs...)
|
||||
}),
|
||||
}
|
||||
}
|
||||
|
||||
// GetMetricWithLabelValues returns the Summary for the given slice of label
|
||||
// values (same order as the variable labels in Desc). If that combination of
|
||||
// label values is accessed for the first time, a new Summary is created.
|
||||
//
|
||||
// It is possible to call this method without using the returned Summary to only
|
||||
// create the new Summary but leave it at its starting value, a Summary without
|
||||
// any observations.
|
||||
//
|
||||
// Keeping the Summary for later use is possible (and should be considered if
|
||||
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
|
||||
// Delete can be used to delete the Summary from the SummaryVec. In that case,
|
||||
// the Summary will still exist, but it will not be exported anymore, even if a
|
||||
// Summary with the same label values is created later. See also the CounterVec
|
||||
// example.
|
||||
//
|
||||
// An error is returned if the number of label values is not the same as the
|
||||
// number of variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// Note that for more than one label value, this method is prone to mistakes
|
||||
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
|
||||
// an alternative to avoid that type of mistake. For higher label numbers, the
|
||||
// latter has a much more readable (albeit more verbose) syntax, but it comes
|
||||
// with a performance overhead (for creating and processing the Labels map).
|
||||
// See also the GaugeVec example.
|
||||
func (v *SummaryVec) GetMetricWithLabelValues(lvs ...string) (Observer, error) {
|
||||
metric, err := v.MetricVec.GetMetricWithLabelValues(lvs...)
|
||||
if metric != nil {
|
||||
return metric.(Observer), err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// GetMetricWith returns the Summary for the given Labels map (the label names
|
||||
// must match those of the variable labels in Desc). If that label map is
|
||||
// accessed for the first time, a new Summary is created. Implications of
|
||||
// creating a Summary without using it and keeping the Summary for later use are
|
||||
// the same as for GetMetricWithLabelValues.
|
||||
//
|
||||
// An error is returned if the number and names of the Labels are inconsistent
|
||||
// with those of the variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// This method is used for the same purpose as
|
||||
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
|
||||
// methods.
|
||||
func (v *SummaryVec) GetMetricWith(labels Labels) (Observer, error) {
|
||||
metric, err := v.MetricVec.GetMetricWith(labels)
|
||||
if metric != nil {
|
||||
return metric.(Observer), err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// WithLabelValues works as GetMetricWithLabelValues, but panics where
|
||||
// GetMetricWithLabelValues would have returned an error. Not returning an
|
||||
// error allows shortcuts like
|
||||
// myVec.WithLabelValues("404", "GET").Observe(42.21)
|
||||
func (v *SummaryVec) WithLabelValues(lvs ...string) Observer {
|
||||
s, err := v.GetMetricWithLabelValues(lvs...)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
|
||||
// returned an error. Not returning an error allows shortcuts like
|
||||
// myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Observe(42.21)
|
||||
func (v *SummaryVec) With(labels Labels) Observer {
|
||||
s, err := v.GetMetricWith(labels)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
// CurryWith returns a vector curried with the provided labels, i.e. the
|
||||
// returned vector has those labels pre-set for all labeled operations performed
|
||||
// on it. The cardinality of the curried vector is reduced accordingly. The
|
||||
// order of the remaining labels stays the same (just with the curried labels
|
||||
// taken out of the sequence – which is relevant for the
|
||||
// (GetMetric)WithLabelValues methods). It is possible to curry a curried
|
||||
// vector, but only with labels not yet used for currying before.
|
||||
//
|
||||
// The metrics contained in the SummaryVec are shared between the curried and
|
||||
// uncurried vectors. They are just accessed differently. Curried and uncurried
|
||||
// vectors behave identically in terms of collection. Only one must be
|
||||
// registered with a given registry (usually the uncurried version). The Reset
|
||||
// method deletes all metrics, even if called on a curried vector.
|
||||
func (v *SummaryVec) CurryWith(labels Labels) (ObserverVec, error) {
|
||||
vec, err := v.MetricVec.CurryWith(labels)
|
||||
if vec != nil {
|
||||
return &SummaryVec{vec}, err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// MustCurryWith works as CurryWith but panics where CurryWith would have
|
||||
// returned an error.
|
||||
func (v *SummaryVec) MustCurryWith(labels Labels) ObserverVec {
|
||||
vec, err := v.CurryWith(labels)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return vec
|
||||
}
|
||||
|
||||
type constSummary struct {
|
||||
desc *Desc
|
||||
count uint64
|
||||
sum float64
|
||||
quantiles map[float64]float64
|
||||
labelPairs []*dto.LabelPair
|
||||
}
|
||||
|
||||
func (s *constSummary) Desc() *Desc {
|
||||
return s.desc
|
||||
}
|
||||
|
||||
func (s *constSummary) Write(out *dto.Metric) error {
|
||||
sum := &dto.Summary{}
|
||||
qs := make([]*dto.Quantile, 0, len(s.quantiles))
|
||||
|
||||
sum.SampleCount = proto.Uint64(s.count)
|
||||
sum.SampleSum = proto.Float64(s.sum)
|
||||
|
||||
for rank, q := range s.quantiles {
|
||||
qs = append(qs, &dto.Quantile{
|
||||
Quantile: proto.Float64(rank),
|
||||
Value: proto.Float64(q),
|
||||
})
|
||||
}
|
||||
|
||||
if len(qs) > 0 {
|
||||
sort.Sort(quantSort(qs))
|
||||
}
|
||||
sum.Quantile = qs
|
||||
|
||||
out.Summary = sum
|
||||
out.Label = s.labelPairs
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// NewConstSummary returns a metric representing a Prometheus summary with fixed
|
||||
// values for the count, sum, and quantiles. As those parameters cannot be
|
||||
// changed, the returned value does not implement the Summary interface (but
|
||||
// only the Metric interface). Users of this package will not have much use for
|
||||
// it in regular operations. However, when implementing custom Collectors, it is
|
||||
// useful as a throw-away metric that is generated on the fly to send it to
|
||||
// Prometheus in the Collect method.
|
||||
//
|
||||
// quantiles maps ranks to quantile values. For example, a median latency of
|
||||
// 0.23s and a 99th percentile latency of 0.56s would be expressed as:
|
||||
// map[float64]float64{0.5: 0.23, 0.99: 0.56}
|
||||
//
|
||||
// NewConstSummary returns an error if the length of labelValues is not
|
||||
// consistent with the variable labels in Desc or if Desc is invalid.
|
||||
func NewConstSummary(
|
||||
desc *Desc,
|
||||
count uint64,
|
||||
sum float64,
|
||||
quantiles map[float64]float64,
|
||||
labelValues ...string,
|
||||
) (Metric, error) {
|
||||
if desc.err != nil {
|
||||
return nil, desc.err
|
||||
}
|
||||
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &constSummary{
|
||||
desc: desc,
|
||||
count: count,
|
||||
sum: sum,
|
||||
quantiles: quantiles,
|
||||
labelPairs: MakeLabelPairs(desc, labelValues),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// MustNewConstSummary is a version of NewConstSummary that panics where
|
||||
// NewConstMetric would have returned an error.
|
||||
func MustNewConstSummary(
|
||||
desc *Desc,
|
||||
count uint64,
|
||||
sum float64,
|
||||
quantiles map[float64]float64,
|
||||
labelValues ...string,
|
||||
) Metric {
|
||||
m, err := NewConstSummary(desc, count, sum, quantiles, labelValues...)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return m
|
||||
}
|
54
vendor/github.com/prometheus/client_golang/prometheus/timer.go
generated
vendored
Normal file
54
vendor/github.com/prometheus/client_golang/prometheus/timer.go
generated
vendored
Normal file
@ -0,0 +1,54 @@
|
||||
// Copyright 2016 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import "time"
|
||||
|
||||
// Timer is a helper type to time functions. Use NewTimer to create new
|
||||
// instances.
|
||||
type Timer struct {
|
||||
begin time.Time
|
||||
observer Observer
|
||||
}
|
||||
|
||||
// NewTimer creates a new Timer. The provided Observer is used to observe a
|
||||
// duration in seconds. Timer is usually used to time a function call in the
|
||||
// following way:
|
||||
// func TimeMe() {
|
||||
// timer := NewTimer(myHistogram)
|
||||
// defer timer.ObserveDuration()
|
||||
// // Do actual work.
|
||||
// }
|
||||
func NewTimer(o Observer) *Timer {
|
||||
return &Timer{
|
||||
begin: time.Now(),
|
||||
observer: o,
|
||||
}
|
||||
}
|
||||
|
||||
// ObserveDuration records the duration passed since the Timer was created with
|
||||
// NewTimer. It calls the Observe method of the Observer provided during
|
||||
// construction with the duration in seconds as an argument. The observed
|
||||
// duration is also returned. ObserveDuration is usually called with a defer
|
||||
// statement.
|
||||
//
|
||||
// Note that this method is only guaranteed to never observe negative durations
|
||||
// if used with Go1.9+.
|
||||
func (t *Timer) ObserveDuration() time.Duration {
|
||||
d := time.Since(t.begin)
|
||||
if t.observer != nil {
|
||||
t.observer.Observe(d.Seconds())
|
||||
}
|
||||
return d
|
||||
}
|
42
vendor/github.com/prometheus/client_golang/prometheus/untyped.go
generated
vendored
Normal file
42
vendor/github.com/prometheus/client_golang/prometheus/untyped.go
generated
vendored
Normal file
@ -0,0 +1,42 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
// UntypedOpts is an alias for Opts. See there for doc comments.
|
||||
type UntypedOpts Opts
|
||||
|
||||
// UntypedFunc works like GaugeFunc but the collected metric is of type
|
||||
// "Untyped". UntypedFunc is useful to mirror an external metric of unknown
|
||||
// type.
|
||||
//
|
||||
// To create UntypedFunc instances, use NewUntypedFunc.
|
||||
type UntypedFunc interface {
|
||||
Metric
|
||||
Collector
|
||||
}
|
||||
|
||||
// NewUntypedFunc creates a new UntypedFunc based on the provided
|
||||
// UntypedOpts. The value reported is determined by calling the given function
|
||||
// from within the Write method. Take into account that metric collection may
|
||||
// happen concurrently. If that results in concurrent calls to Write, like in
|
||||
// the case where an UntypedFunc is directly registered with Prometheus, the
|
||||
// provided function must be concurrency-safe.
|
||||
func NewUntypedFunc(opts UntypedOpts, function func() float64) UntypedFunc {
|
||||
return newValueFunc(NewDesc(
|
||||
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
|
||||
opts.Help,
|
||||
nil,
|
||||
opts.ConstLabels,
|
||||
), UntypedValue, function)
|
||||
}
|
212
vendor/github.com/prometheus/client_golang/prometheus/value.go
generated
vendored
Normal file
212
vendor/github.com/prometheus/client_golang/prometheus/value.go
generated
vendored
Normal file
@ -0,0 +1,212 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sort"
|
||||
"time"
|
||||
"unicode/utf8"
|
||||
|
||||
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
|
||||
"github.com/golang/protobuf/proto"
|
||||
"github.com/golang/protobuf/ptypes"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// ValueType is an enumeration of metric types that represent a simple value.
|
||||
type ValueType int
|
||||
|
||||
// Possible values for the ValueType enum. Use UntypedValue to mark a metric
|
||||
// with an unknown type.
|
||||
const (
|
||||
_ ValueType = iota
|
||||
CounterValue
|
||||
GaugeValue
|
||||
UntypedValue
|
||||
)
|
||||
|
||||
// valueFunc is a generic metric for simple values retrieved on collect time
|
||||
// from a function. It implements Metric and Collector. Its effective type is
|
||||
// determined by ValueType. This is a low-level building block used by the
|
||||
// library to back the implementations of CounterFunc, GaugeFunc, and
|
||||
// UntypedFunc.
|
||||
type valueFunc struct {
|
||||
selfCollector
|
||||
|
||||
desc *Desc
|
||||
valType ValueType
|
||||
function func() float64
|
||||
labelPairs []*dto.LabelPair
|
||||
}
|
||||
|
||||
// newValueFunc returns a newly allocated valueFunc with the given Desc and
|
||||
// ValueType. The value reported is determined by calling the given function
|
||||
// from within the Write method. Take into account that metric collection may
|
||||
// happen concurrently. If that results in concurrent calls to Write, like in
|
||||
// the case where a valueFunc is directly registered with Prometheus, the
|
||||
// provided function must be concurrency-safe.
|
||||
func newValueFunc(desc *Desc, valueType ValueType, function func() float64) *valueFunc {
|
||||
result := &valueFunc{
|
||||
desc: desc,
|
||||
valType: valueType,
|
||||
function: function,
|
||||
labelPairs: MakeLabelPairs(desc, nil),
|
||||
}
|
||||
result.init(result)
|
||||
return result
|
||||
}
|
||||
|
||||
func (v *valueFunc) Desc() *Desc {
|
||||
return v.desc
|
||||
}
|
||||
|
||||
func (v *valueFunc) Write(out *dto.Metric) error {
|
||||
return populateMetric(v.valType, v.function(), v.labelPairs, nil, out)
|
||||
}
|
||||
|
||||
// NewConstMetric returns a metric with one fixed value that cannot be
|
||||
// changed. Users of this package will not have much use for it in regular
|
||||
// operations. However, when implementing custom Collectors, it is useful as a
|
||||
// throw-away metric that is generated on the fly to send it to Prometheus in
|
||||
// the Collect method. NewConstMetric returns an error if the length of
|
||||
// labelValues is not consistent with the variable labels in Desc or if Desc is
|
||||
// invalid.
|
||||
func NewConstMetric(desc *Desc, valueType ValueType, value float64, labelValues ...string) (Metric, error) {
|
||||
if desc.err != nil {
|
||||
return nil, desc.err
|
||||
}
|
||||
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &constMetric{
|
||||
desc: desc,
|
||||
valType: valueType,
|
||||
val: value,
|
||||
labelPairs: MakeLabelPairs(desc, labelValues),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// MustNewConstMetric is a version of NewConstMetric that panics where
|
||||
// NewConstMetric would have returned an error.
|
||||
func MustNewConstMetric(desc *Desc, valueType ValueType, value float64, labelValues ...string) Metric {
|
||||
m, err := NewConstMetric(desc, valueType, value, labelValues...)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
type constMetric struct {
|
||||
desc *Desc
|
||||
valType ValueType
|
||||
val float64
|
||||
labelPairs []*dto.LabelPair
|
||||
}
|
||||
|
||||
func (m *constMetric) Desc() *Desc {
|
||||
return m.desc
|
||||
}
|
||||
|
||||
func (m *constMetric) Write(out *dto.Metric) error {
|
||||
return populateMetric(m.valType, m.val, m.labelPairs, nil, out)
|
||||
}
|
||||
|
||||
func populateMetric(
|
||||
t ValueType,
|
||||
v float64,
|
||||
labelPairs []*dto.LabelPair,
|
||||
e *dto.Exemplar,
|
||||
m *dto.Metric,
|
||||
) error {
|
||||
m.Label = labelPairs
|
||||
switch t {
|
||||
case CounterValue:
|
||||
m.Counter = &dto.Counter{Value: proto.Float64(v), Exemplar: e}
|
||||
case GaugeValue:
|
||||
m.Gauge = &dto.Gauge{Value: proto.Float64(v)}
|
||||
case UntypedValue:
|
||||
m.Untyped = &dto.Untyped{Value: proto.Float64(v)}
|
||||
default:
|
||||
return fmt.Errorf("encountered unknown type %v", t)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// MakeLabelPairs is a helper function to create protobuf LabelPairs from the
|
||||
// variable and constant labels in the provided Desc. The values for the
|
||||
// variable labels are defined by the labelValues slice, which must be in the
|
||||
// same order as the corresponding variable labels in the Desc.
|
||||
//
|
||||
// This function is only needed for custom Metric implementations. See MetricVec
|
||||
// example.
|
||||
func MakeLabelPairs(desc *Desc, labelValues []string) []*dto.LabelPair {
|
||||
totalLen := len(desc.variableLabels) + len(desc.constLabelPairs)
|
||||
if totalLen == 0 {
|
||||
// Super fast path.
|
||||
return nil
|
||||
}
|
||||
if len(desc.variableLabels) == 0 {
|
||||
// Moderately fast path.
|
||||
return desc.constLabelPairs
|
||||
}
|
||||
labelPairs := make([]*dto.LabelPair, 0, totalLen)
|
||||
for i, n := range desc.variableLabels {
|
||||
labelPairs = append(labelPairs, &dto.LabelPair{
|
||||
Name: proto.String(n),
|
||||
Value: proto.String(labelValues[i]),
|
||||
})
|
||||
}
|
||||
labelPairs = append(labelPairs, desc.constLabelPairs...)
|
||||
sort.Sort(labelPairSorter(labelPairs))
|
||||
return labelPairs
|
||||
}
|
||||
|
||||
// ExemplarMaxRunes is the max total number of runes allowed in exemplar labels.
|
||||
const ExemplarMaxRunes = 64
|
||||
|
||||
// newExemplar creates a new dto.Exemplar from the provided values. An error is
|
||||
// returned if any of the label names or values are invalid or if the total
|
||||
// number of runes in the label names and values exceeds ExemplarMaxRunes.
|
||||
func newExemplar(value float64, ts time.Time, l Labels) (*dto.Exemplar, error) {
|
||||
e := &dto.Exemplar{}
|
||||
e.Value = proto.Float64(value)
|
||||
tsProto, err := ptypes.TimestampProto(ts)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
e.Timestamp = tsProto
|
||||
labelPairs := make([]*dto.LabelPair, 0, len(l))
|
||||
var runes int
|
||||
for name, value := range l {
|
||||
if !checkLabelName(name) {
|
||||
return nil, fmt.Errorf("exemplar label name %q is invalid", name)
|
||||
}
|
||||
runes += utf8.RuneCountInString(name)
|
||||
if !utf8.ValidString(value) {
|
||||
return nil, fmt.Errorf("exemplar label value %q is not valid UTF-8", value)
|
||||
}
|
||||
runes += utf8.RuneCountInString(value)
|
||||
labelPairs = append(labelPairs, &dto.LabelPair{
|
||||
Name: proto.String(name),
|
||||
Value: proto.String(value),
|
||||
})
|
||||
}
|
||||
if runes > ExemplarMaxRunes {
|
||||
return nil, fmt.Errorf("exemplar labels have %d runes, exceeding the limit of %d", runes, ExemplarMaxRunes)
|
||||
}
|
||||
e.Label = labelPairs
|
||||
return e, nil
|
||||
}
|
556
vendor/github.com/prometheus/client_golang/prometheus/vec.go
generated
vendored
Normal file
556
vendor/github.com/prometheus/client_golang/prometheus/vec.go
generated
vendored
Normal file
@ -0,0 +1,556 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sync"
|
||||
|
||||
"github.com/prometheus/common/model"
|
||||
)
|
||||
|
||||
// MetricVec is a Collector to bundle metrics of the same name that differ in
|
||||
// their label values. MetricVec is not used directly but as a building block
|
||||
// for implementations of vectors of a given metric type, like GaugeVec,
|
||||
// CounterVec, SummaryVec, and HistogramVec. It is exported so that it can be
|
||||
// used for custom Metric implementations.
|
||||
//
|
||||
// To create a FooVec for custom Metric Foo, embed a pointer to MetricVec in
|
||||
// FooVec and initialize it with NewMetricVec. Implement wrappers for
|
||||
// GetMetricWithLabelValues and GetMetricWith that return (Foo, error) rather
|
||||
// than (Metric, error). Similarly, create a wrapper for CurryWith that returns
|
||||
// (*FooVec, error) rather than (*MetricVec, error). It is recommended to also
|
||||
// add the convenience methods WithLabelValues, With, and MustCurryWith, which
|
||||
// panic instead of returning errors. See also the MetricVec example.
|
||||
type MetricVec struct {
|
||||
*metricMap
|
||||
|
||||
curry []curriedLabelValue
|
||||
|
||||
// hashAdd and hashAddByte can be replaced for testing collision handling.
|
||||
hashAdd func(h uint64, s string) uint64
|
||||
hashAddByte func(h uint64, b byte) uint64
|
||||
}
|
||||
|
||||
// NewMetricVec returns an initialized metricVec.
|
||||
func NewMetricVec(desc *Desc, newMetric func(lvs ...string) Metric) *MetricVec {
|
||||
return &MetricVec{
|
||||
metricMap: &metricMap{
|
||||
metrics: map[uint64][]metricWithLabelValues{},
|
||||
desc: desc,
|
||||
newMetric: newMetric,
|
||||
},
|
||||
hashAdd: hashAdd,
|
||||
hashAddByte: hashAddByte,
|
||||
}
|
||||
}
|
||||
|
||||
// DeleteLabelValues removes the metric where the variable labels are the same
|
||||
// as those passed in as labels (same order as the VariableLabels in Desc). It
|
||||
// returns true if a metric was deleted.
|
||||
//
|
||||
// It is not an error if the number of label values is not the same as the
|
||||
// number of VariableLabels in Desc. However, such inconsistent label count can
|
||||
// never match an actual metric, so the method will always return false in that
|
||||
// case.
|
||||
//
|
||||
// Note that for more than one label value, this method is prone to mistakes
|
||||
// caused by an incorrect order of arguments. Consider Delete(Labels) as an
|
||||
// alternative to avoid that type of mistake. For higher label numbers, the
|
||||
// latter has a much more readable (albeit more verbose) syntax, but it comes
|
||||
// with a performance overhead (for creating and processing the Labels map).
|
||||
// See also the CounterVec example.
|
||||
func (m *MetricVec) DeleteLabelValues(lvs ...string) bool {
|
||||
h, err := m.hashLabelValues(lvs)
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
|
||||
return m.metricMap.deleteByHashWithLabelValues(h, lvs, m.curry)
|
||||
}
|
||||
|
||||
// Delete deletes the metric where the variable labels are the same as those
|
||||
// passed in as labels. It returns true if a metric was deleted.
|
||||
//
|
||||
// It is not an error if the number and names of the Labels are inconsistent
|
||||
// with those of the VariableLabels in Desc. However, such inconsistent Labels
|
||||
// can never match an actual metric, so the method will always return false in
|
||||
// that case.
|
||||
//
|
||||
// This method is used for the same purpose as DeleteLabelValues(...string). See
|
||||
// there for pros and cons of the two methods.
|
||||
func (m *MetricVec) Delete(labels Labels) bool {
|
||||
h, err := m.hashLabels(labels)
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
|
||||
return m.metricMap.deleteByHashWithLabels(h, labels, m.curry)
|
||||
}
|
||||
|
||||
// Without explicit forwarding of Describe, Collect, Reset, those methods won't
|
||||
// show up in GoDoc.
|
||||
|
||||
// Describe implements Collector.
|
||||
func (m *MetricVec) Describe(ch chan<- *Desc) { m.metricMap.Describe(ch) }
|
||||
|
||||
// Collect implements Collector.
|
||||
func (m *MetricVec) Collect(ch chan<- Metric) { m.metricMap.Collect(ch) }
|
||||
|
||||
// Reset deletes all metrics in this vector.
|
||||
func (m *MetricVec) Reset() { m.metricMap.Reset() }
|
||||
|
||||
// CurryWith returns a vector curried with the provided labels, i.e. the
|
||||
// returned vector has those labels pre-set for all labeled operations performed
|
||||
// on it. The cardinality of the curried vector is reduced accordingly. The
|
||||
// order of the remaining labels stays the same (just with the curried labels
|
||||
// taken out of the sequence – which is relevant for the
|
||||
// (GetMetric)WithLabelValues methods). It is possible to curry a curried
|
||||
// vector, but only with labels not yet used for currying before.
|
||||
//
|
||||
// The metrics contained in the MetricVec are shared between the curried and
|
||||
// uncurried vectors. They are just accessed differently. Curried and uncurried
|
||||
// vectors behave identically in terms of collection. Only one must be
|
||||
// registered with a given registry (usually the uncurried version). The Reset
|
||||
// method deletes all metrics, even if called on a curried vector.
|
||||
//
|
||||
// Note that CurryWith is usually not called directly but through a wrapper
|
||||
// around MetricVec, implementing a vector for a specific Metric
|
||||
// implementation, for example GaugeVec.
|
||||
func (m *MetricVec) CurryWith(labels Labels) (*MetricVec, error) {
|
||||
var (
|
||||
newCurry []curriedLabelValue
|
||||
oldCurry = m.curry
|
||||
iCurry int
|
||||
)
|
||||
for i, label := range m.desc.variableLabels {
|
||||
val, ok := labels[label]
|
||||
if iCurry < len(oldCurry) && oldCurry[iCurry].index == i {
|
||||
if ok {
|
||||
return nil, fmt.Errorf("label name %q is already curried", label)
|
||||
}
|
||||
newCurry = append(newCurry, oldCurry[iCurry])
|
||||
iCurry++
|
||||
} else {
|
||||
if !ok {
|
||||
continue // Label stays uncurried.
|
||||
}
|
||||
newCurry = append(newCurry, curriedLabelValue{i, val})
|
||||
}
|
||||
}
|
||||
if l := len(oldCurry) + len(labels) - len(newCurry); l > 0 {
|
||||
return nil, fmt.Errorf("%d unknown label(s) found during currying", l)
|
||||
}
|
||||
|
||||
return &MetricVec{
|
||||
metricMap: m.metricMap,
|
||||
curry: newCurry,
|
||||
hashAdd: m.hashAdd,
|
||||
hashAddByte: m.hashAddByte,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// GetMetricWithLabelValues returns the Metric for the given slice of label
|
||||
// values (same order as the variable labels in Desc). If that combination of
|
||||
// label values is accessed for the first time, a new Metric is created (by
|
||||
// calling the newMetric function provided during construction of the
|
||||
// MetricVec).
|
||||
//
|
||||
// It is possible to call this method without using the returned Metric to only
|
||||
// create the new Metric but leave it in its initial state.
|
||||
//
|
||||
// Keeping the Metric for later use is possible (and should be considered if
|
||||
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
|
||||
// Delete can be used to delete the Metric from the MetricVec. In that case, the
|
||||
// Metric will still exist, but it will not be exported anymore, even if a
|
||||
// Metric with the same label values is created later.
|
||||
//
|
||||
// An error is returned if the number of label values is not the same as the
|
||||
// number of variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// Note that for more than one label value, this method is prone to mistakes
|
||||
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
|
||||
// an alternative to avoid that type of mistake. For higher label numbers, the
|
||||
// latter has a much more readable (albeit more verbose) syntax, but it comes
|
||||
// with a performance overhead (for creating and processing the Labels map).
|
||||
//
|
||||
// Note that GetMetricWithLabelValues is usually not called directly but through
|
||||
// a wrapper around MetricVec, implementing a vector for a specific Metric
|
||||
// implementation, for example GaugeVec.
|
||||
func (m *MetricVec) GetMetricWithLabelValues(lvs ...string) (Metric, error) {
|
||||
h, err := m.hashLabelValues(lvs)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return m.metricMap.getOrCreateMetricWithLabelValues(h, lvs, m.curry), nil
|
||||
}
|
||||
|
||||
// GetMetricWith returns the Metric for the given Labels map (the label names
|
||||
// must match those of the variable labels in Desc). If that label map is
|
||||
// accessed for the first time, a new Metric is created. Implications of
|
||||
// creating a Metric without using it and keeping the Metric for later use
|
||||
// are the same as for GetMetricWithLabelValues.
|
||||
//
|
||||
// An error is returned if the number and names of the Labels are inconsistent
|
||||
// with those of the variable labels in Desc (minus any curried labels).
|
||||
//
|
||||
// This method is used for the same purpose as
|
||||
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
|
||||
// methods.
|
||||
//
|
||||
// Note that GetMetricWith is usually not called directly but through a wrapper
|
||||
// around MetricVec, implementing a vector for a specific Metric implementation,
|
||||
// for example GaugeVec.
|
||||
func (m *MetricVec) GetMetricWith(labels Labels) (Metric, error) {
|
||||
h, err := m.hashLabels(labels)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return m.metricMap.getOrCreateMetricWithLabels(h, labels, m.curry), nil
|
||||
}
|
||||
|
||||
func (m *MetricVec) hashLabelValues(vals []string) (uint64, error) {
|
||||
if err := validateLabelValues(vals, len(m.desc.variableLabels)-len(m.curry)); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
var (
|
||||
h = hashNew()
|
||||
curry = m.curry
|
||||
iVals, iCurry int
|
||||
)
|
||||
for i := 0; i < len(m.desc.variableLabels); i++ {
|
||||
if iCurry < len(curry) && curry[iCurry].index == i {
|
||||
h = m.hashAdd(h, curry[iCurry].value)
|
||||
iCurry++
|
||||
} else {
|
||||
h = m.hashAdd(h, vals[iVals])
|
||||
iVals++
|
||||
}
|
||||
h = m.hashAddByte(h, model.SeparatorByte)
|
||||
}
|
||||
return h, nil
|
||||
}
|
||||
|
||||
func (m *MetricVec) hashLabels(labels Labels) (uint64, error) {
|
||||
if err := validateValuesInLabels(labels, len(m.desc.variableLabels)-len(m.curry)); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
var (
|
||||
h = hashNew()
|
||||
curry = m.curry
|
||||
iCurry int
|
||||
)
|
||||
for i, label := range m.desc.variableLabels {
|
||||
val, ok := labels[label]
|
||||
if iCurry < len(curry) && curry[iCurry].index == i {
|
||||
if ok {
|
||||
return 0, fmt.Errorf("label name %q is already curried", label)
|
||||
}
|
||||
h = m.hashAdd(h, curry[iCurry].value)
|
||||
iCurry++
|
||||
} else {
|
||||
if !ok {
|
||||
return 0, fmt.Errorf("label name %q missing in label map", label)
|
||||
}
|
||||
h = m.hashAdd(h, val)
|
||||
}
|
||||
h = m.hashAddByte(h, model.SeparatorByte)
|
||||
}
|
||||
return h, nil
|
||||
}
|
||||
|
||||
// metricWithLabelValues provides the metric and its label values for
|
||||
// disambiguation on hash collision.
|
||||
type metricWithLabelValues struct {
|
||||
values []string
|
||||
metric Metric
|
||||
}
|
||||
|
||||
// curriedLabelValue sets the curried value for a label at the given index.
|
||||
type curriedLabelValue struct {
|
||||
index int
|
||||
value string
|
||||
}
|
||||
|
||||
// metricMap is a helper for metricVec and shared between differently curried
|
||||
// metricVecs.
|
||||
type metricMap struct {
|
||||
mtx sync.RWMutex // Protects metrics.
|
||||
metrics map[uint64][]metricWithLabelValues
|
||||
desc *Desc
|
||||
newMetric func(labelValues ...string) Metric
|
||||
}
|
||||
|
||||
// Describe implements Collector. It will send exactly one Desc to the provided
|
||||
// channel.
|
||||
func (m *metricMap) Describe(ch chan<- *Desc) {
|
||||
ch <- m.desc
|
||||
}
|
||||
|
||||
// Collect implements Collector.
|
||||
func (m *metricMap) Collect(ch chan<- Metric) {
|
||||
m.mtx.RLock()
|
||||
defer m.mtx.RUnlock()
|
||||
|
||||
for _, metrics := range m.metrics {
|
||||
for _, metric := range metrics {
|
||||
ch <- metric.metric
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Reset deletes all metrics in this vector.
|
||||
func (m *metricMap) Reset() {
|
||||
m.mtx.Lock()
|
||||
defer m.mtx.Unlock()
|
||||
|
||||
for h := range m.metrics {
|
||||
delete(m.metrics, h)
|
||||
}
|
||||
}
|
||||
|
||||
// deleteByHashWithLabelValues removes the metric from the hash bucket h. If
|
||||
// there are multiple matches in the bucket, use lvs to select a metric and
|
||||
// remove only that metric.
|
||||
func (m *metricMap) deleteByHashWithLabelValues(
|
||||
h uint64, lvs []string, curry []curriedLabelValue,
|
||||
) bool {
|
||||
m.mtx.Lock()
|
||||
defer m.mtx.Unlock()
|
||||
|
||||
metrics, ok := m.metrics[h]
|
||||
if !ok {
|
||||
return false
|
||||
}
|
||||
|
||||
i := findMetricWithLabelValues(metrics, lvs, curry)
|
||||
if i >= len(metrics) {
|
||||
return false
|
||||
}
|
||||
|
||||
if len(metrics) > 1 {
|
||||
old := metrics
|
||||
m.metrics[h] = append(metrics[:i], metrics[i+1:]...)
|
||||
old[len(old)-1] = metricWithLabelValues{}
|
||||
} else {
|
||||
delete(m.metrics, h)
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// deleteByHashWithLabels removes the metric from the hash bucket h. If there
|
||||
// are multiple matches in the bucket, use lvs to select a metric and remove
|
||||
// only that metric.
|
||||
func (m *metricMap) deleteByHashWithLabels(
|
||||
h uint64, labels Labels, curry []curriedLabelValue,
|
||||
) bool {
|
||||
m.mtx.Lock()
|
||||
defer m.mtx.Unlock()
|
||||
|
||||
metrics, ok := m.metrics[h]
|
||||
if !ok {
|
||||
return false
|
||||
}
|
||||
i := findMetricWithLabels(m.desc, metrics, labels, curry)
|
||||
if i >= len(metrics) {
|
||||
return false
|
||||
}
|
||||
|
||||
if len(metrics) > 1 {
|
||||
old := metrics
|
||||
m.metrics[h] = append(metrics[:i], metrics[i+1:]...)
|
||||
old[len(old)-1] = metricWithLabelValues{}
|
||||
} else {
|
||||
delete(m.metrics, h)
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// getOrCreateMetricWithLabelValues retrieves the metric by hash and label value
|
||||
// or creates it and returns the new one.
|
||||
//
|
||||
// This function holds the mutex.
|
||||
func (m *metricMap) getOrCreateMetricWithLabelValues(
|
||||
hash uint64, lvs []string, curry []curriedLabelValue,
|
||||
) Metric {
|
||||
m.mtx.RLock()
|
||||
metric, ok := m.getMetricWithHashAndLabelValues(hash, lvs, curry)
|
||||
m.mtx.RUnlock()
|
||||
if ok {
|
||||
return metric
|
||||
}
|
||||
|
||||
m.mtx.Lock()
|
||||
defer m.mtx.Unlock()
|
||||
metric, ok = m.getMetricWithHashAndLabelValues(hash, lvs, curry)
|
||||
if !ok {
|
||||
inlinedLVs := inlineLabelValues(lvs, curry)
|
||||
metric = m.newMetric(inlinedLVs...)
|
||||
m.metrics[hash] = append(m.metrics[hash], metricWithLabelValues{values: inlinedLVs, metric: metric})
|
||||
}
|
||||
return metric
|
||||
}
|
||||
|
||||
// getOrCreateMetricWithLabelValues retrieves the metric by hash and label value
|
||||
// or creates it and returns the new one.
|
||||
//
|
||||
// This function holds the mutex.
|
||||
func (m *metricMap) getOrCreateMetricWithLabels(
|
||||
hash uint64, labels Labels, curry []curriedLabelValue,
|
||||
) Metric {
|
||||
m.mtx.RLock()
|
||||
metric, ok := m.getMetricWithHashAndLabels(hash, labels, curry)
|
||||
m.mtx.RUnlock()
|
||||
if ok {
|
||||
return metric
|
||||
}
|
||||
|
||||
m.mtx.Lock()
|
||||
defer m.mtx.Unlock()
|
||||
metric, ok = m.getMetricWithHashAndLabels(hash, labels, curry)
|
||||
if !ok {
|
||||
lvs := extractLabelValues(m.desc, labels, curry)
|
||||
metric = m.newMetric(lvs...)
|
||||
m.metrics[hash] = append(m.metrics[hash], metricWithLabelValues{values: lvs, metric: metric})
|
||||
}
|
||||
return metric
|
||||
}
|
||||
|
||||
// getMetricWithHashAndLabelValues gets a metric while handling possible
|
||||
// collisions in the hash space. Must be called while holding the read mutex.
|
||||
func (m *metricMap) getMetricWithHashAndLabelValues(
|
||||
h uint64, lvs []string, curry []curriedLabelValue,
|
||||
) (Metric, bool) {
|
||||
metrics, ok := m.metrics[h]
|
||||
if ok {
|
||||
if i := findMetricWithLabelValues(metrics, lvs, curry); i < len(metrics) {
|
||||
return metrics[i].metric, true
|
||||
}
|
||||
}
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// getMetricWithHashAndLabels gets a metric while handling possible collisions in
|
||||
// the hash space. Must be called while holding read mutex.
|
||||
func (m *metricMap) getMetricWithHashAndLabels(
|
||||
h uint64, labels Labels, curry []curriedLabelValue,
|
||||
) (Metric, bool) {
|
||||
metrics, ok := m.metrics[h]
|
||||
if ok {
|
||||
if i := findMetricWithLabels(m.desc, metrics, labels, curry); i < len(metrics) {
|
||||
return metrics[i].metric, true
|
||||
}
|
||||
}
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// findMetricWithLabelValues returns the index of the matching metric or
|
||||
// len(metrics) if not found.
|
||||
func findMetricWithLabelValues(
|
||||
metrics []metricWithLabelValues, lvs []string, curry []curriedLabelValue,
|
||||
) int {
|
||||
for i, metric := range metrics {
|
||||
if matchLabelValues(metric.values, lvs, curry) {
|
||||
return i
|
||||
}
|
||||
}
|
||||
return len(metrics)
|
||||
}
|
||||
|
||||
// findMetricWithLabels returns the index of the matching metric or len(metrics)
|
||||
// if not found.
|
||||
func findMetricWithLabels(
|
||||
desc *Desc, metrics []metricWithLabelValues, labels Labels, curry []curriedLabelValue,
|
||||
) int {
|
||||
for i, metric := range metrics {
|
||||
if matchLabels(desc, metric.values, labels, curry) {
|
||||
return i
|
||||
}
|
||||
}
|
||||
return len(metrics)
|
||||
}
|
||||
|
||||
func matchLabelValues(values []string, lvs []string, curry []curriedLabelValue) bool {
|
||||
if len(values) != len(lvs)+len(curry) {
|
||||
return false
|
||||
}
|
||||
var iLVs, iCurry int
|
||||
for i, v := range values {
|
||||
if iCurry < len(curry) && curry[iCurry].index == i {
|
||||
if v != curry[iCurry].value {
|
||||
return false
|
||||
}
|
||||
iCurry++
|
||||
continue
|
||||
}
|
||||
if v != lvs[iLVs] {
|
||||
return false
|
||||
}
|
||||
iLVs++
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func matchLabels(desc *Desc, values []string, labels Labels, curry []curriedLabelValue) bool {
|
||||
if len(values) != len(labels)+len(curry) {
|
||||
return false
|
||||
}
|
||||
iCurry := 0
|
||||
for i, k := range desc.variableLabels {
|
||||
if iCurry < len(curry) && curry[iCurry].index == i {
|
||||
if values[i] != curry[iCurry].value {
|
||||
return false
|
||||
}
|
||||
iCurry++
|
||||
continue
|
||||
}
|
||||
if values[i] != labels[k] {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func extractLabelValues(desc *Desc, labels Labels, curry []curriedLabelValue) []string {
|
||||
labelValues := make([]string, len(labels)+len(curry))
|
||||
iCurry := 0
|
||||
for i, k := range desc.variableLabels {
|
||||
if iCurry < len(curry) && curry[iCurry].index == i {
|
||||
labelValues[i] = curry[iCurry].value
|
||||
iCurry++
|
||||
continue
|
||||
}
|
||||
labelValues[i] = labels[k]
|
||||
}
|
||||
return labelValues
|
||||
}
|
||||
|
||||
func inlineLabelValues(lvs []string, curry []curriedLabelValue) []string {
|
||||
labelValues := make([]string, len(lvs)+len(curry))
|
||||
var iCurry, iLVs int
|
||||
for i := range labelValues {
|
||||
if iCurry < len(curry) && curry[iCurry].index == i {
|
||||
labelValues[i] = curry[iCurry].value
|
||||
iCurry++
|
||||
continue
|
||||
}
|
||||
labelValues[i] = lvs[iLVs]
|
||||
iLVs++
|
||||
}
|
||||
return labelValues
|
||||
}
|
214
vendor/github.com/prometheus/client_golang/prometheus/wrap.go
generated
vendored
Normal file
214
vendor/github.com/prometheus/client_golang/prometheus/wrap.go
generated
vendored
Normal file
@ -0,0 +1,214 @@
|
||||
// Copyright 2018 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sort"
|
||||
|
||||
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
|
||||
"github.com/golang/protobuf/proto"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// WrapRegistererWith returns a Registerer wrapping the provided
|
||||
// Registerer. Collectors registered with the returned Registerer will be
|
||||
// registered with the wrapped Registerer in a modified way. The modified
|
||||
// Collector adds the provided Labels to all Metrics it collects (as
|
||||
// ConstLabels). The Metrics collected by the unmodified Collector must not
|
||||
// duplicate any of those labels. Wrapping a nil value is valid, resulting
|
||||
// in a no-op Registerer.
|
||||
//
|
||||
// WrapRegistererWith provides a way to add fixed labels to a subset of
|
||||
// Collectors. It should not be used to add fixed labels to all metrics
|
||||
// exposed. See also
|
||||
// https://prometheus.io/docs/instrumenting/writing_exporters/#target-labels-not-static-scraped-labels
|
||||
//
|
||||
// Conflicts between Collectors registered through the original Registerer with
|
||||
// Collectors registered through the wrapping Registerer will still be
|
||||
// detected. Any AlreadyRegisteredError returned by the Register method of
|
||||
// either Registerer will contain the ExistingCollector in the form it was
|
||||
// provided to the respective registry.
|
||||
//
|
||||
// The Collector example demonstrates a use of WrapRegistererWith.
|
||||
func WrapRegistererWith(labels Labels, reg Registerer) Registerer {
|
||||
return &wrappingRegisterer{
|
||||
wrappedRegisterer: reg,
|
||||
labels: labels,
|
||||
}
|
||||
}
|
||||
|
||||
// WrapRegistererWithPrefix returns a Registerer wrapping the provided
|
||||
// Registerer. Collectors registered with the returned Registerer will be
|
||||
// registered with the wrapped Registerer in a modified way. The modified
|
||||
// Collector adds the provided prefix to the name of all Metrics it collects.
|
||||
// Wrapping a nil value is valid, resulting in a no-op Registerer.
|
||||
//
|
||||
// WrapRegistererWithPrefix is useful to have one place to prefix all metrics of
|
||||
// a sub-system. To make this work, register metrics of the sub-system with the
|
||||
// wrapping Registerer returned by WrapRegistererWithPrefix. It is rarely useful
|
||||
// to use the same prefix for all metrics exposed. In particular, do not prefix
|
||||
// metric names that are standardized across applications, as that would break
|
||||
// horizontal monitoring, for example the metrics provided by the Go collector
|
||||
// (see NewGoCollector) and the process collector (see NewProcessCollector). (In
|
||||
// fact, those metrics are already prefixed with “go_” or “process_”,
|
||||
// respectively.)
|
||||
//
|
||||
// Conflicts between Collectors registered through the original Registerer with
|
||||
// Collectors registered through the wrapping Registerer will still be
|
||||
// detected. Any AlreadyRegisteredError returned by the Register method of
|
||||
// either Registerer will contain the ExistingCollector in the form it was
|
||||
// provided to the respective registry.
|
||||
func WrapRegistererWithPrefix(prefix string, reg Registerer) Registerer {
|
||||
return &wrappingRegisterer{
|
||||
wrappedRegisterer: reg,
|
||||
prefix: prefix,
|
||||
}
|
||||
}
|
||||
|
||||
type wrappingRegisterer struct {
|
||||
wrappedRegisterer Registerer
|
||||
prefix string
|
||||
labels Labels
|
||||
}
|
||||
|
||||
func (r *wrappingRegisterer) Register(c Collector) error {
|
||||
if r.wrappedRegisterer == nil {
|
||||
return nil
|
||||
}
|
||||
return r.wrappedRegisterer.Register(&wrappingCollector{
|
||||
wrappedCollector: c,
|
||||
prefix: r.prefix,
|
||||
labels: r.labels,
|
||||
})
|
||||
}
|
||||
|
||||
func (r *wrappingRegisterer) MustRegister(cs ...Collector) {
|
||||
if r.wrappedRegisterer == nil {
|
||||
return
|
||||
}
|
||||
for _, c := range cs {
|
||||
if err := r.Register(c); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (r *wrappingRegisterer) Unregister(c Collector) bool {
|
||||
if r.wrappedRegisterer == nil {
|
||||
return false
|
||||
}
|
||||
return r.wrappedRegisterer.Unregister(&wrappingCollector{
|
||||
wrappedCollector: c,
|
||||
prefix: r.prefix,
|
||||
labels: r.labels,
|
||||
})
|
||||
}
|
||||
|
||||
type wrappingCollector struct {
|
||||
wrappedCollector Collector
|
||||
prefix string
|
||||
labels Labels
|
||||
}
|
||||
|
||||
func (c *wrappingCollector) Collect(ch chan<- Metric) {
|
||||
wrappedCh := make(chan Metric)
|
||||
go func() {
|
||||
c.wrappedCollector.Collect(wrappedCh)
|
||||
close(wrappedCh)
|
||||
}()
|
||||
for m := range wrappedCh {
|
||||
ch <- &wrappingMetric{
|
||||
wrappedMetric: m,
|
||||
prefix: c.prefix,
|
||||
labels: c.labels,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (c *wrappingCollector) Describe(ch chan<- *Desc) {
|
||||
wrappedCh := make(chan *Desc)
|
||||
go func() {
|
||||
c.wrappedCollector.Describe(wrappedCh)
|
||||
close(wrappedCh)
|
||||
}()
|
||||
for desc := range wrappedCh {
|
||||
ch <- wrapDesc(desc, c.prefix, c.labels)
|
||||
}
|
||||
}
|
||||
|
||||
func (c *wrappingCollector) unwrapRecursively() Collector {
|
||||
switch wc := c.wrappedCollector.(type) {
|
||||
case *wrappingCollector:
|
||||
return wc.unwrapRecursively()
|
||||
default:
|
||||
return wc
|
||||
}
|
||||
}
|
||||
|
||||
type wrappingMetric struct {
|
||||
wrappedMetric Metric
|
||||
prefix string
|
||||
labels Labels
|
||||
}
|
||||
|
||||
func (m *wrappingMetric) Desc() *Desc {
|
||||
return wrapDesc(m.wrappedMetric.Desc(), m.prefix, m.labels)
|
||||
}
|
||||
|
||||
func (m *wrappingMetric) Write(out *dto.Metric) error {
|
||||
if err := m.wrappedMetric.Write(out); err != nil {
|
||||
return err
|
||||
}
|
||||
if len(m.labels) == 0 {
|
||||
// No wrapping labels.
|
||||
return nil
|
||||
}
|
||||
for ln, lv := range m.labels {
|
||||
out.Label = append(out.Label, &dto.LabelPair{
|
||||
Name: proto.String(ln),
|
||||
Value: proto.String(lv),
|
||||
})
|
||||
}
|
||||
sort.Sort(labelPairSorter(out.Label))
|
||||
return nil
|
||||
}
|
||||
|
||||
func wrapDesc(desc *Desc, prefix string, labels Labels) *Desc {
|
||||
constLabels := Labels{}
|
||||
for _, lp := range desc.constLabelPairs {
|
||||
constLabels[*lp.Name] = *lp.Value
|
||||
}
|
||||
for ln, lv := range labels {
|
||||
if _, alreadyUsed := constLabels[ln]; alreadyUsed {
|
||||
return &Desc{
|
||||
fqName: desc.fqName,
|
||||
help: desc.help,
|
||||
variableLabels: desc.variableLabels,
|
||||
constLabelPairs: desc.constLabelPairs,
|
||||
err: fmt.Errorf("attempted wrapping with already existing label name %q", ln),
|
||||
}
|
||||
}
|
||||
constLabels[ln] = lv
|
||||
}
|
||||
// NewDesc will do remaining validations.
|
||||
newDesc := NewDesc(prefix+desc.fqName, desc.help, desc.variableLabels, constLabels)
|
||||
// Propagate errors if there was any. This will override any errer
|
||||
// created by NewDesc above, i.e. earlier errors get precedence.
|
||||
if desc.err != nil {
|
||||
newDesc.err = desc.err
|
||||
}
|
||||
return newDesc
|
||||
}
|
201
vendor/github.com/prometheus/client_model/LICENSE
generated
vendored
Normal file
201
vendor/github.com/prometheus/client_model/LICENSE
generated
vendored
Normal file
@ -0,0 +1,201 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
copyright notice that is included in or attached to the work
|
||||
(an example is provided in the Appendix below).
|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
||||
form, that is based on (or derived from) the Work and for which the
|
||||
editorial revisions, annotations, elaborations, or other modifications
|
||||
represent, as a whole, an original work of authorship. For the purposes
|
||||
of this License, Derivative Works shall not include works that remain
|
||||
separable from, or merely link (or bind by name) to the interfaces of,
|
||||
the Work and Derivative Works thereof.
|
||||
|
||||
"Contribution" shall mean any work of authorship, including
|
||||
the original version of the Work and any modifications or additions
|
||||
to that Work or Derivative Works thereof, that is intentionally
|
||||
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||
or by an individual or Legal Entity authorized to submit on behalf of
|
||||
the copyright owner. For the purposes of this definition, "submitted"
|
||||
means any form of electronic, verbal, or written communication sent
|
||||
to the Licensor or its representatives, including but not limited to
|
||||
communication on electronic mailing lists, source code control systems,
|
||||
and issue tracking systems that are managed by, or on behalf of, the
|
||||
Licensor for the purpose of discussing and improving the Work, but
|
||||
excluding communication that is conspicuously marked or otherwise
|
||||
designated in writing by the copyright owner as "Not a Contribution."
|
||||
|
||||
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||
on behalf of whom a Contribution has been received by Licensor and
|
||||
subsequently incorporated within the Work.
|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
copyright license to reproduce, prepare Derivative Works of,
|
||||
publicly display, publicly perform, sublicense, and distribute the
|
||||
Work and such Derivative Works in Source or Object form.
|
||||
|
||||
3. Grant of Patent License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
(except as stated in this section) patent license to make, have made,
|
||||
use, offer to sell, sell, import, and otherwise transfer the Work,
|
||||
where such license applies only to those patent claims licensable
|
||||
by such Contributor that are necessarily infringed by their
|
||||
Contribution(s) alone or by combination of their Contribution(s)
|
||||
with the Work to which such Contribution(s) was submitted. If You
|
||||
institute patent litigation against any entity (including a
|
||||
cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||
or a Contribution incorporated within the Work constitutes direct
|
||||
or contributory patent infringement, then any patent licenses
|
||||
granted to You under this License for that Work shall terminate
|
||||
as of the date such litigation is filed.
|
||||
|
||||
4. Redistribution. You may reproduce and distribute copies of the
|
||||
Work or Derivative Works thereof in any medium, with or without
|
||||
modifications, and in Source or Object form, provided that You
|
||||
meet the following conditions:
|
||||
|
||||
(a) You must give any other recipients of the Work or
|
||||
Derivative Works a copy of this License; and
|
||||
|
||||
(b) You must cause any modified files to carry prominent notices
|
||||
stating that You changed the files; and
|
||||
|
||||
(c) You must retain, in the Source form of any Derivative Works
|
||||
that You distribute, all copyright, patent, trademark, and
|
||||
attribution notices from the Source form of the Work,
|
||||
excluding those notices that do not pertain to any part of
|
||||
the Derivative Works; and
|
||||
|
||||
(d) If the Work includes a "NOTICE" text file as part of its
|
||||
distribution, then any Derivative Works that You distribute must
|
||||
include a readable copy of the attribution notices contained
|
||||
within such NOTICE file, excluding those notices that do not
|
||||
pertain to any part of the Derivative Works, in at least one
|
||||
of the following places: within a NOTICE text file distributed
|
||||
as part of the Derivative Works; within the Source form or
|
||||
documentation, if provided along with the Derivative Works; or,
|
||||
within a display generated by the Derivative Works, if and
|
||||
wherever such third-party notices normally appear. The contents
|
||||
of the NOTICE file are for informational purposes only and
|
||||
do not modify the License. You may add Your own attribution
|
||||
notices within Derivative Works that You distribute, alongside
|
||||
or as an addendum to the NOTICE text from the Work, provided
|
||||
that such additional attribution notices cannot be construed
|
||||
as modifying the License.
|
||||
|
||||
You may add Your own copyright statement to Your modifications and
|
||||
may provide additional or different license terms and conditions
|
||||
for use, reproduction, or distribution of Your modifications, or
|
||||
for any such Derivative Works as a whole, provided Your use,
|
||||
reproduction, and distribution of the Work otherwise complies with
|
||||
the conditions stated in this License.
|
||||
|
||||
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
|
||||
this License, without any additional terms or conditions.
|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
||||
the terms of any separate license agreement you may have executed
|
||||
with Licensor regarding such Contributions.
|
||||
|
||||
6. Trademarks. This License does not grant permission to use the trade
|
||||
names, trademarks, service marks, or product names of the Licensor,
|
||||
except as required for reasonable and customary use in describing the
|
||||
origin of the Work and reproducing the content of the NOTICE file.
|
||||
|
||||
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||
agreed to in writing, Licensor provides the Work (and each
|
||||
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
implied, including, without limitation, any warranties or conditions
|
||||
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||
PARTICULAR PURPOSE. You are solely responsible for determining the
|
||||
appropriateness of using or redistributing the Work and assume any
|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
negligent acts) or agreed to in writing, shall any Contributor be
|
||||
liable to You for damages, including any direct, indirect, special,
|
||||
incidental, or consequential damages of any character arising as a
|
||||
result of this License or out of the use or inability to use the
|
||||
Work (including but not limited to damages for loss of goodwill,
|
||||
work stoppage, computer failure or malfunction, or any and all
|
||||
other commercial damages or losses), even if such Contributor
|
||||
has been advised of the possibility of such damages.
|
||||
|
||||
9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
||||
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||
or other liability obligations and/or rights consistent with this
|
||||
License. However, in accepting such obligations, You may act only
|
||||
on Your own behalf and on Your sole responsibility, not on behalf
|
||||
of any other Contributor, and only if You agree to indemnify,
|
||||
defend, and hold each Contributor harmless for any liability
|
||||
incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||
replaced with your own identifying information. (Don't include
|
||||
the brackets!) The text should be enclosed in the appropriate
|
||||
comment syntax for the file format. We also recommend that a
|
||||
file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright [yyyy] [name of copyright owner]
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
5
vendor/github.com/prometheus/client_model/NOTICE
generated
vendored
Normal file
5
vendor/github.com/prometheus/client_model/NOTICE
generated
vendored
Normal file
@ -0,0 +1,5 @@
|
||||
Data model artifacts for Prometheus.
|
||||
Copyright 2012-2015 The Prometheus Authors
|
||||
|
||||
This product includes software developed at
|
||||
SoundCloud Ltd. (http://soundcloud.com/).
|
723
vendor/github.com/prometheus/client_model/go/metrics.pb.go
generated
vendored
Normal file
723
vendor/github.com/prometheus/client_model/go/metrics.pb.go
generated
vendored
Normal file
@ -0,0 +1,723 @@
|
||||
// Code generated by protoc-gen-go. DO NOT EDIT.
|
||||
// source: metrics.proto
|
||||
|
||||
package io_prometheus_client
|
||||
|
||||
import (
|
||||
fmt "fmt"
|
||||
proto "github.com/golang/protobuf/proto"
|
||||
timestamp "github.com/golang/protobuf/ptypes/timestamp"
|
||||
math "math"
|
||||
)
|
||||
|
||||
// Reference imports to suppress errors if they are not otherwise used.
|
||||
var _ = proto.Marshal
|
||||
var _ = fmt.Errorf
|
||||
var _ = math.Inf
|
||||
|
||||
// This is a compile-time assertion to ensure that this generated file
|
||||
// is compatible with the proto package it is being compiled against.
|
||||
// A compilation error at this line likely means your copy of the
|
||||
// proto package needs to be updated.
|
||||
const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
|
||||
|
||||
type MetricType int32
|
||||
|
||||
const (
|
||||
MetricType_COUNTER MetricType = 0
|
||||
MetricType_GAUGE MetricType = 1
|
||||
MetricType_SUMMARY MetricType = 2
|
||||
MetricType_UNTYPED MetricType = 3
|
||||
MetricType_HISTOGRAM MetricType = 4
|
||||
)
|
||||
|
||||
var MetricType_name = map[int32]string{
|
||||
0: "COUNTER",
|
||||
1: "GAUGE",
|
||||
2: "SUMMARY",
|
||||
3: "UNTYPED",
|
||||
4: "HISTOGRAM",
|
||||
}
|
||||
|
||||
var MetricType_value = map[string]int32{
|
||||
"COUNTER": 0,
|
||||
"GAUGE": 1,
|
||||
"SUMMARY": 2,
|
||||
"UNTYPED": 3,
|
||||
"HISTOGRAM": 4,
|
||||
}
|
||||
|
||||
func (x MetricType) Enum() *MetricType {
|
||||
p := new(MetricType)
|
||||
*p = x
|
||||
return p
|
||||
}
|
||||
|
||||
func (x MetricType) String() string {
|
||||
return proto.EnumName(MetricType_name, int32(x))
|
||||
}
|
||||
|
||||
func (x *MetricType) UnmarshalJSON(data []byte) error {
|
||||
value, err := proto.UnmarshalJSONEnum(MetricType_value, data, "MetricType")
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
*x = MetricType(value)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (MetricType) EnumDescriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{0}
|
||||
}
|
||||
|
||||
type LabelPair struct {
|
||||
Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
|
||||
Value *string `protobuf:"bytes,2,opt,name=value" json:"value,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *LabelPair) Reset() { *m = LabelPair{} }
|
||||
func (m *LabelPair) String() string { return proto.CompactTextString(m) }
|
||||
func (*LabelPair) ProtoMessage() {}
|
||||
func (*LabelPair) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{0}
|
||||
}
|
||||
|
||||
func (m *LabelPair) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_LabelPair.Unmarshal(m, b)
|
||||
}
|
||||
func (m *LabelPair) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_LabelPair.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *LabelPair) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_LabelPair.Merge(m, src)
|
||||
}
|
||||
func (m *LabelPair) XXX_Size() int {
|
||||
return xxx_messageInfo_LabelPair.Size(m)
|
||||
}
|
||||
func (m *LabelPair) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_LabelPair.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_LabelPair proto.InternalMessageInfo
|
||||
|
||||
func (m *LabelPair) GetName() string {
|
||||
if m != nil && m.Name != nil {
|
||||
return *m.Name
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
func (m *LabelPair) GetValue() string {
|
||||
if m != nil && m.Value != nil {
|
||||
return *m.Value
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
type Gauge struct {
|
||||
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Gauge) Reset() { *m = Gauge{} }
|
||||
func (m *Gauge) String() string { return proto.CompactTextString(m) }
|
||||
func (*Gauge) ProtoMessage() {}
|
||||
func (*Gauge) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{1}
|
||||
}
|
||||
|
||||
func (m *Gauge) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Gauge.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Gauge) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Gauge.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Gauge) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Gauge.Merge(m, src)
|
||||
}
|
||||
func (m *Gauge) XXX_Size() int {
|
||||
return xxx_messageInfo_Gauge.Size(m)
|
||||
}
|
||||
func (m *Gauge) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Gauge.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Gauge proto.InternalMessageInfo
|
||||
|
||||
func (m *Gauge) GetValue() float64 {
|
||||
if m != nil && m.Value != nil {
|
||||
return *m.Value
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
type Counter struct {
|
||||
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
|
||||
Exemplar *Exemplar `protobuf:"bytes,2,opt,name=exemplar" json:"exemplar,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Counter) Reset() { *m = Counter{} }
|
||||
func (m *Counter) String() string { return proto.CompactTextString(m) }
|
||||
func (*Counter) ProtoMessage() {}
|
||||
func (*Counter) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{2}
|
||||
}
|
||||
|
||||
func (m *Counter) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Counter.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Counter) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Counter.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Counter) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Counter.Merge(m, src)
|
||||
}
|
||||
func (m *Counter) XXX_Size() int {
|
||||
return xxx_messageInfo_Counter.Size(m)
|
||||
}
|
||||
func (m *Counter) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Counter.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Counter proto.InternalMessageInfo
|
||||
|
||||
func (m *Counter) GetValue() float64 {
|
||||
if m != nil && m.Value != nil {
|
||||
return *m.Value
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Counter) GetExemplar() *Exemplar {
|
||||
if m != nil {
|
||||
return m.Exemplar
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type Quantile struct {
|
||||
Quantile *float64 `protobuf:"fixed64,1,opt,name=quantile" json:"quantile,omitempty"`
|
||||
Value *float64 `protobuf:"fixed64,2,opt,name=value" json:"value,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Quantile) Reset() { *m = Quantile{} }
|
||||
func (m *Quantile) String() string { return proto.CompactTextString(m) }
|
||||
func (*Quantile) ProtoMessage() {}
|
||||
func (*Quantile) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{3}
|
||||
}
|
||||
|
||||
func (m *Quantile) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Quantile.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Quantile) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Quantile.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Quantile) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Quantile.Merge(m, src)
|
||||
}
|
||||
func (m *Quantile) XXX_Size() int {
|
||||
return xxx_messageInfo_Quantile.Size(m)
|
||||
}
|
||||
func (m *Quantile) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Quantile.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Quantile proto.InternalMessageInfo
|
||||
|
||||
func (m *Quantile) GetQuantile() float64 {
|
||||
if m != nil && m.Quantile != nil {
|
||||
return *m.Quantile
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Quantile) GetValue() float64 {
|
||||
if m != nil && m.Value != nil {
|
||||
return *m.Value
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
type Summary struct {
|
||||
SampleCount *uint64 `protobuf:"varint,1,opt,name=sample_count,json=sampleCount" json:"sample_count,omitempty"`
|
||||
SampleSum *float64 `protobuf:"fixed64,2,opt,name=sample_sum,json=sampleSum" json:"sample_sum,omitempty"`
|
||||
Quantile []*Quantile `protobuf:"bytes,3,rep,name=quantile" json:"quantile,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Summary) Reset() { *m = Summary{} }
|
||||
func (m *Summary) String() string { return proto.CompactTextString(m) }
|
||||
func (*Summary) ProtoMessage() {}
|
||||
func (*Summary) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{4}
|
||||
}
|
||||
|
||||
func (m *Summary) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Summary.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Summary) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Summary.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Summary) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Summary.Merge(m, src)
|
||||
}
|
||||
func (m *Summary) XXX_Size() int {
|
||||
return xxx_messageInfo_Summary.Size(m)
|
||||
}
|
||||
func (m *Summary) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Summary.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Summary proto.InternalMessageInfo
|
||||
|
||||
func (m *Summary) GetSampleCount() uint64 {
|
||||
if m != nil && m.SampleCount != nil {
|
||||
return *m.SampleCount
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Summary) GetSampleSum() float64 {
|
||||
if m != nil && m.SampleSum != nil {
|
||||
return *m.SampleSum
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Summary) GetQuantile() []*Quantile {
|
||||
if m != nil {
|
||||
return m.Quantile
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type Untyped struct {
|
||||
Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Untyped) Reset() { *m = Untyped{} }
|
||||
func (m *Untyped) String() string { return proto.CompactTextString(m) }
|
||||
func (*Untyped) ProtoMessage() {}
|
||||
func (*Untyped) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{5}
|
||||
}
|
||||
|
||||
func (m *Untyped) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Untyped.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Untyped) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Untyped.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Untyped) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Untyped.Merge(m, src)
|
||||
}
|
||||
func (m *Untyped) XXX_Size() int {
|
||||
return xxx_messageInfo_Untyped.Size(m)
|
||||
}
|
||||
func (m *Untyped) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Untyped.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Untyped proto.InternalMessageInfo
|
||||
|
||||
func (m *Untyped) GetValue() float64 {
|
||||
if m != nil && m.Value != nil {
|
||||
return *m.Value
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
type Histogram struct {
|
||||
SampleCount *uint64 `protobuf:"varint,1,opt,name=sample_count,json=sampleCount" json:"sample_count,omitempty"`
|
||||
SampleSum *float64 `protobuf:"fixed64,2,opt,name=sample_sum,json=sampleSum" json:"sample_sum,omitempty"`
|
||||
Bucket []*Bucket `protobuf:"bytes,3,rep,name=bucket" json:"bucket,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Histogram) Reset() { *m = Histogram{} }
|
||||
func (m *Histogram) String() string { return proto.CompactTextString(m) }
|
||||
func (*Histogram) ProtoMessage() {}
|
||||
func (*Histogram) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{6}
|
||||
}
|
||||
|
||||
func (m *Histogram) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Histogram.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Histogram) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Histogram.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Histogram) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Histogram.Merge(m, src)
|
||||
}
|
||||
func (m *Histogram) XXX_Size() int {
|
||||
return xxx_messageInfo_Histogram.Size(m)
|
||||
}
|
||||
func (m *Histogram) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Histogram.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Histogram proto.InternalMessageInfo
|
||||
|
||||
func (m *Histogram) GetSampleCount() uint64 {
|
||||
if m != nil && m.SampleCount != nil {
|
||||
return *m.SampleCount
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Histogram) GetSampleSum() float64 {
|
||||
if m != nil && m.SampleSum != nil {
|
||||
return *m.SampleSum
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Histogram) GetBucket() []*Bucket {
|
||||
if m != nil {
|
||||
return m.Bucket
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type Bucket struct {
|
||||
CumulativeCount *uint64 `protobuf:"varint,1,opt,name=cumulative_count,json=cumulativeCount" json:"cumulative_count,omitempty"`
|
||||
UpperBound *float64 `protobuf:"fixed64,2,opt,name=upper_bound,json=upperBound" json:"upper_bound,omitempty"`
|
||||
Exemplar *Exemplar `protobuf:"bytes,3,opt,name=exemplar" json:"exemplar,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Bucket) Reset() { *m = Bucket{} }
|
||||
func (m *Bucket) String() string { return proto.CompactTextString(m) }
|
||||
func (*Bucket) ProtoMessage() {}
|
||||
func (*Bucket) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{7}
|
||||
}
|
||||
|
||||
func (m *Bucket) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Bucket.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Bucket) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Bucket.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Bucket) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Bucket.Merge(m, src)
|
||||
}
|
||||
func (m *Bucket) XXX_Size() int {
|
||||
return xxx_messageInfo_Bucket.Size(m)
|
||||
}
|
||||
func (m *Bucket) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Bucket.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Bucket proto.InternalMessageInfo
|
||||
|
||||
func (m *Bucket) GetCumulativeCount() uint64 {
|
||||
if m != nil && m.CumulativeCount != nil {
|
||||
return *m.CumulativeCount
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Bucket) GetUpperBound() float64 {
|
||||
if m != nil && m.UpperBound != nil {
|
||||
return *m.UpperBound
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Bucket) GetExemplar() *Exemplar {
|
||||
if m != nil {
|
||||
return m.Exemplar
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type Exemplar struct {
|
||||
Label []*LabelPair `protobuf:"bytes,1,rep,name=label" json:"label,omitempty"`
|
||||
Value *float64 `protobuf:"fixed64,2,opt,name=value" json:"value,omitempty"`
|
||||
Timestamp *timestamp.Timestamp `protobuf:"bytes,3,opt,name=timestamp" json:"timestamp,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Exemplar) Reset() { *m = Exemplar{} }
|
||||
func (m *Exemplar) String() string { return proto.CompactTextString(m) }
|
||||
func (*Exemplar) ProtoMessage() {}
|
||||
func (*Exemplar) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{8}
|
||||
}
|
||||
|
||||
func (m *Exemplar) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Exemplar.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Exemplar) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Exemplar.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Exemplar) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Exemplar.Merge(m, src)
|
||||
}
|
||||
func (m *Exemplar) XXX_Size() int {
|
||||
return xxx_messageInfo_Exemplar.Size(m)
|
||||
}
|
||||
func (m *Exemplar) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Exemplar.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Exemplar proto.InternalMessageInfo
|
||||
|
||||
func (m *Exemplar) GetLabel() []*LabelPair {
|
||||
if m != nil {
|
||||
return m.Label
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Exemplar) GetValue() float64 {
|
||||
if m != nil && m.Value != nil {
|
||||
return *m.Value
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Exemplar) GetTimestamp() *timestamp.Timestamp {
|
||||
if m != nil {
|
||||
return m.Timestamp
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type Metric struct {
|
||||
Label []*LabelPair `protobuf:"bytes,1,rep,name=label" json:"label,omitempty"`
|
||||
Gauge *Gauge `protobuf:"bytes,2,opt,name=gauge" json:"gauge,omitempty"`
|
||||
Counter *Counter `protobuf:"bytes,3,opt,name=counter" json:"counter,omitempty"`
|
||||
Summary *Summary `protobuf:"bytes,4,opt,name=summary" json:"summary,omitempty"`
|
||||
Untyped *Untyped `protobuf:"bytes,5,opt,name=untyped" json:"untyped,omitempty"`
|
||||
Histogram *Histogram `protobuf:"bytes,7,opt,name=histogram" json:"histogram,omitempty"`
|
||||
TimestampMs *int64 `protobuf:"varint,6,opt,name=timestamp_ms,json=timestampMs" json:"timestamp_ms,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Metric) Reset() { *m = Metric{} }
|
||||
func (m *Metric) String() string { return proto.CompactTextString(m) }
|
||||
func (*Metric) ProtoMessage() {}
|
||||
func (*Metric) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{9}
|
||||
}
|
||||
|
||||
func (m *Metric) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Metric.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Metric) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Metric.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Metric) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Metric.Merge(m, src)
|
||||
}
|
||||
func (m *Metric) XXX_Size() int {
|
||||
return xxx_messageInfo_Metric.Size(m)
|
||||
}
|
||||
func (m *Metric) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Metric.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Metric proto.InternalMessageInfo
|
||||
|
||||
func (m *Metric) GetLabel() []*LabelPair {
|
||||
if m != nil {
|
||||
return m.Label
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Metric) GetGauge() *Gauge {
|
||||
if m != nil {
|
||||
return m.Gauge
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Metric) GetCounter() *Counter {
|
||||
if m != nil {
|
||||
return m.Counter
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Metric) GetSummary() *Summary {
|
||||
if m != nil {
|
||||
return m.Summary
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Metric) GetUntyped() *Untyped {
|
||||
if m != nil {
|
||||
return m.Untyped
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Metric) GetHistogram() *Histogram {
|
||||
if m != nil {
|
||||
return m.Histogram
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Metric) GetTimestampMs() int64 {
|
||||
if m != nil && m.TimestampMs != nil {
|
||||
return *m.TimestampMs
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
type MetricFamily struct {
|
||||
Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
|
||||
Help *string `protobuf:"bytes,2,opt,name=help" json:"help,omitempty"`
|
||||
Type *MetricType `protobuf:"varint,3,opt,name=type,enum=io.prometheus.client.MetricType" json:"type,omitempty"`
|
||||
Metric []*Metric `protobuf:"bytes,4,rep,name=metric" json:"metric,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *MetricFamily) Reset() { *m = MetricFamily{} }
|
||||
func (m *MetricFamily) String() string { return proto.CompactTextString(m) }
|
||||
func (*MetricFamily) ProtoMessage() {}
|
||||
func (*MetricFamily) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_6039342a2ba47b72, []int{10}
|
||||
}
|
||||
|
||||
func (m *MetricFamily) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_MetricFamily.Unmarshal(m, b)
|
||||
}
|
||||
func (m *MetricFamily) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_MetricFamily.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *MetricFamily) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_MetricFamily.Merge(m, src)
|
||||
}
|
||||
func (m *MetricFamily) XXX_Size() int {
|
||||
return xxx_messageInfo_MetricFamily.Size(m)
|
||||
}
|
||||
func (m *MetricFamily) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_MetricFamily.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_MetricFamily proto.InternalMessageInfo
|
||||
|
||||
func (m *MetricFamily) GetName() string {
|
||||
if m != nil && m.Name != nil {
|
||||
return *m.Name
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
func (m *MetricFamily) GetHelp() string {
|
||||
if m != nil && m.Help != nil {
|
||||
return *m.Help
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
func (m *MetricFamily) GetType() MetricType {
|
||||
if m != nil && m.Type != nil {
|
||||
return *m.Type
|
||||
}
|
||||
return MetricType_COUNTER
|
||||
}
|
||||
|
||||
func (m *MetricFamily) GetMetric() []*Metric {
|
||||
if m != nil {
|
||||
return m.Metric
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func init() {
|
||||
proto.RegisterEnum("io.prometheus.client.MetricType", MetricType_name, MetricType_value)
|
||||
proto.RegisterType((*LabelPair)(nil), "io.prometheus.client.LabelPair")
|
||||
proto.RegisterType((*Gauge)(nil), "io.prometheus.client.Gauge")
|
||||
proto.RegisterType((*Counter)(nil), "io.prometheus.client.Counter")
|
||||
proto.RegisterType((*Quantile)(nil), "io.prometheus.client.Quantile")
|
||||
proto.RegisterType((*Summary)(nil), "io.prometheus.client.Summary")
|
||||
proto.RegisterType((*Untyped)(nil), "io.prometheus.client.Untyped")
|
||||
proto.RegisterType((*Histogram)(nil), "io.prometheus.client.Histogram")
|
||||
proto.RegisterType((*Bucket)(nil), "io.prometheus.client.Bucket")
|
||||
proto.RegisterType((*Exemplar)(nil), "io.prometheus.client.Exemplar")
|
||||
proto.RegisterType((*Metric)(nil), "io.prometheus.client.Metric")
|
||||
proto.RegisterType((*MetricFamily)(nil), "io.prometheus.client.MetricFamily")
|
||||
}
|
||||
|
||||
func init() { proto.RegisterFile("metrics.proto", fileDescriptor_6039342a2ba47b72) }
|
||||
|
||||
var fileDescriptor_6039342a2ba47b72 = []byte{
|
||||
// 665 bytes of a gzipped FileDescriptorProto
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
0x68, 0x41, 0xcc, 0x54, 0x08, 0x6c, 0xf3, 0x36, 0xa2, 0x4e, 0x0a, 0xce, 0xd1, 0x82, 0xc8, 0x95,
|
||||
0x69, 0xed, 0xfa, 0x6d, 0x44, 0xed, 0x6c, 0x9c, 0xa3, 0xd1, 0x0b, 0xb0, 0x16, 0xb9, 0x97, 0xed,
|
||||
0xa6, 0xa4, 0xde, 0x70, 0x31, 0x85, 0xe5, 0x71, 0xc9, 0x10, 0xee, 0x2f, 0xee, 0x7a, 0x46, 0x33,
|
||||
0xbb, 0xd1, 0x33, 0x76, 0x6a, 0xb8, 0x5d, 0xd4, 0x46, 0x99, 0xf3, 0xc3, 0x80, 0x75, 0xf5, 0x07,
|
||||
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|
||||
0x8d, 0xf6, 0xc0, 0x14, 0x1a, 0xe5, 0x15, 0xfe, 0xbf, 0xdb, 0xab, 0x56, 0xa5, 0x26, 0x4f, 0x56,
|
||||
0x09, 0xc1, 0x12, 0x2d, 0xd2, 0xa4, 0x5e, 0x60, 0xdb, 0xbc, 0x2d, 0x4d, 0x8a, 0x87, 0x35, 0xf6,
|
||||
0xd1, 0x08, 0xa0, 0x9c, 0x84, 0xda, 0xd0, 0x3c, 0x3e, 0x9b, 0x9e, 0x4e, 0x06, 0xb8, 0xf3, 0x1f,
|
||||
0xb2, 0xa0, 0x3e, 0x3c, 0x9c, 0x0e, 0x07, 0x1d, 0x43, 0xd4, 0xc7, 0xd3, 0xd1, 0xe8, 0x10, 0x5f,
|
||||
0x74, 0xd6, 0xc4, 0x66, 0x7a, 0x3a, 0xb9, 0x38, 0x1f, 0xbc, 0xec, 0xd4, 0xd0, 0x06, 0x58, 0x27,
|
||||
0xaf, 0xc7, 0x93, 0xb3, 0x21, 0x3e, 0x1c, 0x75, 0xcc, 0x23, 0x0c, 0x95, 0xef, 0xfe, 0xbb, 0x83,
|
||||
0x20, 0x64, 0x0b, 0x3e, 0x77, 0xfd, 0x98, 0xf6, 0xcb, 0x6e, 0x5f, 0x75, 0x67, 0x34, 0xbe, 0x24,
|
||||
0x51, 0x3f, 0x88, 0x9f, 0x85, 0xf1, 0xac, 0xec, 0xce, 0x54, 0xf7, 0x57, 0x00, 0x00, 0x00, 0xff,
|
||||
0xff, 0xd0, 0x84, 0x91, 0x73, 0x59, 0x06, 0x00, 0x00,
|
||||
}
|
201
vendor/github.com/prometheus/common/LICENSE
generated
vendored
Normal file
201
vendor/github.com/prometheus/common/LICENSE
generated
vendored
Normal file
@ -0,0 +1,201 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
copyright notice that is included in or attached to the work
|
||||
(an example is provided in the Appendix below).
|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
||||
form, that is based on (or derived from) the Work and for which the
|
||||
editorial revisions, annotations, elaborations, or other modifications
|
||||
represent, as a whole, an original work of authorship. For the purposes
|
||||
of this License, Derivative Works shall not include works that remain
|
||||
separable from, or merely link (or bind by name) to the interfaces of,
|
||||
the Work and Derivative Works thereof.
|
||||
|
||||
"Contribution" shall mean any work of authorship, including
|
||||
the original version of the Work and any modifications or additions
|
||||
to that Work or Derivative Works thereof, that is intentionally
|
||||
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||
or by an individual or Legal Entity authorized to submit on behalf of
|
||||
the copyright owner. For the purposes of this definition, "submitted"
|
||||
means any form of electronic, verbal, or written communication sent
|
||||
to the Licensor or its representatives, including but not limited to
|
||||
communication on electronic mailing lists, source code control systems,
|
||||
and issue tracking systems that are managed by, or on behalf of, the
|
||||
Licensor for the purpose of discussing and improving the Work, but
|
||||
excluding communication that is conspicuously marked or otherwise
|
||||
designated in writing by the copyright owner as "Not a Contribution."
|
||||
|
||||
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||
on behalf of whom a Contribution has been received by Licensor and
|
||||
subsequently incorporated within the Work.
|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
copyright license to reproduce, prepare Derivative Works of,
|
||||
publicly display, publicly perform, sublicense, and distribute the
|
||||
Work and such Derivative Works in Source or Object form.
|
||||
|
||||
3. Grant of Patent License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
(except as stated in this section) patent license to make, have made,
|
||||
use, offer to sell, sell, import, and otherwise transfer the Work,
|
||||
where such license applies only to those patent claims licensable
|
||||
by such Contributor that are necessarily infringed by their
|
||||
Contribution(s) alone or by combination of their Contribution(s)
|
||||
with the Work to which such Contribution(s) was submitted. If You
|
||||
institute patent litigation against any entity (including a
|
||||
cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||
or a Contribution incorporated within the Work constitutes direct
|
||||
or contributory patent infringement, then any patent licenses
|
||||
granted to You under this License for that Work shall terminate
|
||||
as of the date such litigation is filed.
|
||||
|
||||
4. Redistribution. You may reproduce and distribute copies of the
|
||||
Work or Derivative Works thereof in any medium, with or without
|
||||
modifications, and in Source or Object form, provided that You
|
||||
meet the following conditions:
|
||||
|
||||
(a) You must give any other recipients of the Work or
|
||||
Derivative Works a copy of this License; and
|
||||
|
||||
(b) You must cause any modified files to carry prominent notices
|
||||
stating that You changed the files; and
|
||||
|
||||
(c) You must retain, in the Source form of any Derivative Works
|
||||
that You distribute, all copyright, patent, trademark, and
|
||||
attribution notices from the Source form of the Work,
|
||||
excluding those notices that do not pertain to any part of
|
||||
the Derivative Works; and
|
||||
|
||||
(d) If the Work includes a "NOTICE" text file as part of its
|
||||
distribution, then any Derivative Works that You distribute must
|
||||
include a readable copy of the attribution notices contained
|
||||
within such NOTICE file, excluding those notices that do not
|
||||
pertain to any part of the Derivative Works, in at least one
|
||||
of the following places: within a NOTICE text file distributed
|
||||
as part of the Derivative Works; within the Source form or
|
||||
documentation, if provided along with the Derivative Works; or,
|
||||
within a display generated by the Derivative Works, if and
|
||||
wherever such third-party notices normally appear. The contents
|
||||
of the NOTICE file are for informational purposes only and
|
||||
do not modify the License. You may add Your own attribution
|
||||
notices within Derivative Works that You distribute, alongside
|
||||
or as an addendum to the NOTICE text from the Work, provided
|
||||
that such additional attribution notices cannot be construed
|
||||
as modifying the License.
|
||||
|
||||
You may add Your own copyright statement to Your modifications and
|
||||
may provide additional or different license terms and conditions
|
||||
for use, reproduction, or distribution of Your modifications, or
|
||||
for any such Derivative Works as a whole, provided Your use,
|
||||
reproduction, and distribution of the Work otherwise complies with
|
||||
the conditions stated in this License.
|
||||
|
||||
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
|
||||
this License, without any additional terms or conditions.
|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
||||
the terms of any separate license agreement you may have executed
|
||||
with Licensor regarding such Contributions.
|
||||
|
||||
6. Trademarks. This License does not grant permission to use the trade
|
||||
names, trademarks, service marks, or product names of the Licensor,
|
||||
except as required for reasonable and customary use in describing the
|
||||
origin of the Work and reproducing the content of the NOTICE file.
|
||||
|
||||
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||
agreed to in writing, Licensor provides the Work (and each
|
||||
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
implied, including, without limitation, any warranties or conditions
|
||||
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||
PARTICULAR PURPOSE. You are solely responsible for determining the
|
||||
appropriateness of using or redistributing the Work and assume any
|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
negligent acts) or agreed to in writing, shall any Contributor be
|
||||
liable to You for damages, including any direct, indirect, special,
|
||||
incidental, or consequential damages of any character arising as a
|
||||
result of this License or out of the use or inability to use the
|
||||
Work (including but not limited to damages for loss of goodwill,
|
||||
work stoppage, computer failure or malfunction, or any and all
|
||||
other commercial damages or losses), even if such Contributor
|
||||
has been advised of the possibility of such damages.
|
||||
|
||||
9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
||||
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||
or other liability obligations and/or rights consistent with this
|
||||
License. However, in accepting such obligations, You may act only
|
||||
on Your own behalf and on Your sole responsibility, not on behalf
|
||||
of any other Contributor, and only if You agree to indemnify,
|
||||
defend, and hold each Contributor harmless for any liability
|
||||
incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||
replaced with your own identifying information. (Don't include
|
||||
the brackets!) The text should be enclosed in the appropriate
|
||||
comment syntax for the file format. We also recommend that a
|
||||
file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright [yyyy] [name of copyright owner]
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
5
vendor/github.com/prometheus/common/NOTICE
generated
vendored
Normal file
5
vendor/github.com/prometheus/common/NOTICE
generated
vendored
Normal file
@ -0,0 +1,5 @@
|
||||
Common libraries shared by Prometheus Go components.
|
||||
Copyright 2015 The Prometheus Authors
|
||||
|
||||
This product includes software developed at
|
||||
SoundCloud Ltd. (http://soundcloud.com/).
|
429
vendor/github.com/prometheus/common/expfmt/decode.go
generated
vendored
Normal file
429
vendor/github.com/prometheus/common/expfmt/decode.go
generated
vendored
Normal file
@ -0,0 +1,429 @@
|
||||
// Copyright 2015 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package expfmt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
"mime"
|
||||
"net/http"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
|
||||
"github.com/matttproud/golang_protobuf_extensions/pbutil"
|
||||
"github.com/prometheus/common/model"
|
||||
)
|
||||
|
||||
// Decoder types decode an input stream into metric families.
|
||||
type Decoder interface {
|
||||
Decode(*dto.MetricFamily) error
|
||||
}
|
||||
|
||||
// DecodeOptions contains options used by the Decoder and in sample extraction.
|
||||
type DecodeOptions struct {
|
||||
// Timestamp is added to each value from the stream that has no explicit timestamp set.
|
||||
Timestamp model.Time
|
||||
}
|
||||
|
||||
// ResponseFormat extracts the correct format from a HTTP response header.
|
||||
// If no matching format can be found FormatUnknown is returned.
|
||||
func ResponseFormat(h http.Header) Format {
|
||||
ct := h.Get(hdrContentType)
|
||||
|
||||
mediatype, params, err := mime.ParseMediaType(ct)
|
||||
if err != nil {
|
||||
return FmtUnknown
|
||||
}
|
||||
|
||||
const textType = "text/plain"
|
||||
|
||||
switch mediatype {
|
||||
case ProtoType:
|
||||
if p, ok := params["proto"]; ok && p != ProtoProtocol {
|
||||
return FmtUnknown
|
||||
}
|
||||
if e, ok := params["encoding"]; ok && e != "delimited" {
|
||||
return FmtUnknown
|
||||
}
|
||||
return FmtProtoDelim
|
||||
|
||||
case textType:
|
||||
if v, ok := params["version"]; ok && v != TextVersion {
|
||||
return FmtUnknown
|
||||
}
|
||||
return FmtText
|
||||
}
|
||||
|
||||
return FmtUnknown
|
||||
}
|
||||
|
||||
// NewDecoder returns a new decoder based on the given input format.
|
||||
// If the input format does not imply otherwise, a text format decoder is returned.
|
||||
func NewDecoder(r io.Reader, format Format) Decoder {
|
||||
switch format {
|
||||
case FmtProtoDelim:
|
||||
return &protoDecoder{r: r}
|
||||
}
|
||||
return &textDecoder{r: r}
|
||||
}
|
||||
|
||||
// protoDecoder implements the Decoder interface for protocol buffers.
|
||||
type protoDecoder struct {
|
||||
r io.Reader
|
||||
}
|
||||
|
||||
// Decode implements the Decoder interface.
|
||||
func (d *protoDecoder) Decode(v *dto.MetricFamily) error {
|
||||
_, err := pbutil.ReadDelimited(d.r, v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if !model.IsValidMetricName(model.LabelValue(v.GetName())) {
|
||||
return fmt.Errorf("invalid metric name %q", v.GetName())
|
||||
}
|
||||
for _, m := range v.GetMetric() {
|
||||
if m == nil {
|
||||
continue
|
||||
}
|
||||
for _, l := range m.GetLabel() {
|
||||
if l == nil {
|
||||
continue
|
||||
}
|
||||
if !model.LabelValue(l.GetValue()).IsValid() {
|
||||
return fmt.Errorf("invalid label value %q", l.GetValue())
|
||||
}
|
||||
if !model.LabelName(l.GetName()).IsValid() {
|
||||
return fmt.Errorf("invalid label name %q", l.GetName())
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// textDecoder implements the Decoder interface for the text protocol.
|
||||
type textDecoder struct {
|
||||
r io.Reader
|
||||
p TextParser
|
||||
fams []*dto.MetricFamily
|
||||
}
|
||||
|
||||
// Decode implements the Decoder interface.
|
||||
func (d *textDecoder) Decode(v *dto.MetricFamily) error {
|
||||
// TODO(fabxc): Wrap this as a line reader to make streaming safer.
|
||||
if len(d.fams) == 0 {
|
||||
// No cached metric families, read everything and parse metrics.
|
||||
fams, err := d.p.TextToMetricFamilies(d.r)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if len(fams) == 0 {
|
||||
return io.EOF
|
||||
}
|
||||
d.fams = make([]*dto.MetricFamily, 0, len(fams))
|
||||
for _, f := range fams {
|
||||
d.fams = append(d.fams, f)
|
||||
}
|
||||
}
|
||||
|
||||
*v = *d.fams[0]
|
||||
d.fams = d.fams[1:]
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// SampleDecoder wraps a Decoder to extract samples from the metric families
|
||||
// decoded by the wrapped Decoder.
|
||||
type SampleDecoder struct {
|
||||
Dec Decoder
|
||||
Opts *DecodeOptions
|
||||
|
||||
f dto.MetricFamily
|
||||
}
|
||||
|
||||
// Decode calls the Decode method of the wrapped Decoder and then extracts the
|
||||
// samples from the decoded MetricFamily into the provided model.Vector.
|
||||
func (sd *SampleDecoder) Decode(s *model.Vector) error {
|
||||
err := sd.Dec.Decode(&sd.f)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
*s, err = extractSamples(&sd.f, sd.Opts)
|
||||
return err
|
||||
}
|
||||
|
||||
// ExtractSamples builds a slice of samples from the provided metric
|
||||
// families. If an error occurs during sample extraction, it continues to
|
||||
// extract from the remaining metric families. The returned error is the last
|
||||
// error that has occurred.
|
||||
func ExtractSamples(o *DecodeOptions, fams ...*dto.MetricFamily) (model.Vector, error) {
|
||||
var (
|
||||
all model.Vector
|
||||
lastErr error
|
||||
)
|
||||
for _, f := range fams {
|
||||
some, err := extractSamples(f, o)
|
||||
if err != nil {
|
||||
lastErr = err
|
||||
continue
|
||||
}
|
||||
all = append(all, some...)
|
||||
}
|
||||
return all, lastErr
|
||||
}
|
||||
|
||||
func extractSamples(f *dto.MetricFamily, o *DecodeOptions) (model.Vector, error) {
|
||||
switch f.GetType() {
|
||||
case dto.MetricType_COUNTER:
|
||||
return extractCounter(o, f), nil
|
||||
case dto.MetricType_GAUGE:
|
||||
return extractGauge(o, f), nil
|
||||
case dto.MetricType_SUMMARY:
|
||||
return extractSummary(o, f), nil
|
||||
case dto.MetricType_UNTYPED:
|
||||
return extractUntyped(o, f), nil
|
||||
case dto.MetricType_HISTOGRAM:
|
||||
return extractHistogram(o, f), nil
|
||||
}
|
||||
return nil, fmt.Errorf("expfmt.extractSamples: unknown metric family type %v", f.GetType())
|
||||
}
|
||||
|
||||
func extractCounter(o *DecodeOptions, f *dto.MetricFamily) model.Vector {
|
||||
samples := make(model.Vector, 0, len(f.Metric))
|
||||
|
||||
for _, m := range f.Metric {
|
||||
if m.Counter == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
lset := make(model.LabelSet, len(m.Label)+1)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName())
|
||||
|
||||
smpl := &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(m.Counter.GetValue()),
|
||||
}
|
||||
|
||||
if m.TimestampMs != nil {
|
||||
smpl.Timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000)
|
||||
} else {
|
||||
smpl.Timestamp = o.Timestamp
|
||||
}
|
||||
|
||||
samples = append(samples, smpl)
|
||||
}
|
||||
|
||||
return samples
|
||||
}
|
||||
|
||||
func extractGauge(o *DecodeOptions, f *dto.MetricFamily) model.Vector {
|
||||
samples := make(model.Vector, 0, len(f.Metric))
|
||||
|
||||
for _, m := range f.Metric {
|
||||
if m.Gauge == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
lset := make(model.LabelSet, len(m.Label)+1)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName())
|
||||
|
||||
smpl := &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(m.Gauge.GetValue()),
|
||||
}
|
||||
|
||||
if m.TimestampMs != nil {
|
||||
smpl.Timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000)
|
||||
} else {
|
||||
smpl.Timestamp = o.Timestamp
|
||||
}
|
||||
|
||||
samples = append(samples, smpl)
|
||||
}
|
||||
|
||||
return samples
|
||||
}
|
||||
|
||||
func extractUntyped(o *DecodeOptions, f *dto.MetricFamily) model.Vector {
|
||||
samples := make(model.Vector, 0, len(f.Metric))
|
||||
|
||||
for _, m := range f.Metric {
|
||||
if m.Untyped == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
lset := make(model.LabelSet, len(m.Label)+1)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName())
|
||||
|
||||
smpl := &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(m.Untyped.GetValue()),
|
||||
}
|
||||
|
||||
if m.TimestampMs != nil {
|
||||
smpl.Timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000)
|
||||
} else {
|
||||
smpl.Timestamp = o.Timestamp
|
||||
}
|
||||
|
||||
samples = append(samples, smpl)
|
||||
}
|
||||
|
||||
return samples
|
||||
}
|
||||
|
||||
func extractSummary(o *DecodeOptions, f *dto.MetricFamily) model.Vector {
|
||||
samples := make(model.Vector, 0, len(f.Metric))
|
||||
|
||||
for _, m := range f.Metric {
|
||||
if m.Summary == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
timestamp := o.Timestamp
|
||||
if m.TimestampMs != nil {
|
||||
timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000)
|
||||
}
|
||||
|
||||
for _, q := range m.Summary.Quantile {
|
||||
lset := make(model.LabelSet, len(m.Label)+2)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
// BUG(matt): Update other names to "quantile".
|
||||
lset[model.LabelName(model.QuantileLabel)] = model.LabelValue(fmt.Sprint(q.GetQuantile()))
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName())
|
||||
|
||||
samples = append(samples, &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(q.GetValue()),
|
||||
Timestamp: timestamp,
|
||||
})
|
||||
}
|
||||
|
||||
lset := make(model.LabelSet, len(m.Label)+1)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_sum")
|
||||
|
||||
samples = append(samples, &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(m.Summary.GetSampleSum()),
|
||||
Timestamp: timestamp,
|
||||
})
|
||||
|
||||
lset = make(model.LabelSet, len(m.Label)+1)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_count")
|
||||
|
||||
samples = append(samples, &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(m.Summary.GetSampleCount()),
|
||||
Timestamp: timestamp,
|
||||
})
|
||||
}
|
||||
|
||||
return samples
|
||||
}
|
||||
|
||||
func extractHistogram(o *DecodeOptions, f *dto.MetricFamily) model.Vector {
|
||||
samples := make(model.Vector, 0, len(f.Metric))
|
||||
|
||||
for _, m := range f.Metric {
|
||||
if m.Histogram == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
timestamp := o.Timestamp
|
||||
if m.TimestampMs != nil {
|
||||
timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000)
|
||||
}
|
||||
|
||||
infSeen := false
|
||||
|
||||
for _, q := range m.Histogram.Bucket {
|
||||
lset := make(model.LabelSet, len(m.Label)+2)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.LabelName(model.BucketLabel)] = model.LabelValue(fmt.Sprint(q.GetUpperBound()))
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_bucket")
|
||||
|
||||
if math.IsInf(q.GetUpperBound(), +1) {
|
||||
infSeen = true
|
||||
}
|
||||
|
||||
samples = append(samples, &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(q.GetCumulativeCount()),
|
||||
Timestamp: timestamp,
|
||||
})
|
||||
}
|
||||
|
||||
lset := make(model.LabelSet, len(m.Label)+1)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_sum")
|
||||
|
||||
samples = append(samples, &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(m.Histogram.GetSampleSum()),
|
||||
Timestamp: timestamp,
|
||||
})
|
||||
|
||||
lset = make(model.LabelSet, len(m.Label)+1)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_count")
|
||||
|
||||
count := &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: model.SampleValue(m.Histogram.GetSampleCount()),
|
||||
Timestamp: timestamp,
|
||||
}
|
||||
samples = append(samples, count)
|
||||
|
||||
if !infSeen {
|
||||
// Append an infinity bucket sample.
|
||||
lset := make(model.LabelSet, len(m.Label)+2)
|
||||
for _, p := range m.Label {
|
||||
lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue())
|
||||
}
|
||||
lset[model.LabelName(model.BucketLabel)] = model.LabelValue("+Inf")
|
||||
lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_bucket")
|
||||
|
||||
samples = append(samples, &model.Sample{
|
||||
Metric: model.Metric(lset),
|
||||
Value: count.Value,
|
||||
Timestamp: timestamp,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
return samples
|
||||
}
|
162
vendor/github.com/prometheus/common/expfmt/encode.go
generated
vendored
Normal file
162
vendor/github.com/prometheus/common/expfmt/encode.go
generated
vendored
Normal file
@ -0,0 +1,162 @@
|
||||
// Copyright 2015 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package expfmt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
|
||||
"github.com/golang/protobuf/proto"
|
||||
"github.com/matttproud/golang_protobuf_extensions/pbutil"
|
||||
"github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// Encoder types encode metric families into an underlying wire protocol.
|
||||
type Encoder interface {
|
||||
Encode(*dto.MetricFamily) error
|
||||
}
|
||||
|
||||
// Closer is implemented by Encoders that need to be closed to finalize
|
||||
// encoding. (For example, OpenMetrics needs a final `# EOF` line.)
|
||||
//
|
||||
// Note that all Encoder implementations returned from this package implement
|
||||
// Closer, too, even if the Close call is a no-op. This happens in preparation
|
||||
// for adding a Close method to the Encoder interface directly in a (mildly
|
||||
// breaking) release in the future.
|
||||
type Closer interface {
|
||||
Close() error
|
||||
}
|
||||
|
||||
type encoderCloser struct {
|
||||
encode func(*dto.MetricFamily) error
|
||||
close func() error
|
||||
}
|
||||
|
||||
func (ec encoderCloser) Encode(v *dto.MetricFamily) error {
|
||||
return ec.encode(v)
|
||||
}
|
||||
|
||||
func (ec encoderCloser) Close() error {
|
||||
return ec.close()
|
||||
}
|
||||
|
||||
// Negotiate returns the Content-Type based on the given Accept header. If no
|
||||
// appropriate accepted type is found, FmtText is returned (which is the
|
||||
// Prometheus text format). This function will never negotiate FmtOpenMetrics,
|
||||
// as the support is still experimental. To include the option to negotiate
|
||||
// FmtOpenMetrics, use NegotiateOpenMetrics.
|
||||
func Negotiate(h http.Header) Format {
|
||||
for _, ac := range goautoneg.ParseAccept(h.Get(hdrAccept)) {
|
||||
ver := ac.Params["version"]
|
||||
if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol {
|
||||
switch ac.Params["encoding"] {
|
||||
case "delimited":
|
||||
return FmtProtoDelim
|
||||
case "text":
|
||||
return FmtProtoText
|
||||
case "compact-text":
|
||||
return FmtProtoCompact
|
||||
}
|
||||
}
|
||||
if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") {
|
||||
return FmtText
|
||||
}
|
||||
}
|
||||
return FmtText
|
||||
}
|
||||
|
||||
// NegotiateIncludingOpenMetrics works like Negotiate but includes
|
||||
// FmtOpenMetrics as an option for the result. Note that this function is
|
||||
// temporary and will disappear once FmtOpenMetrics is fully supported and as
|
||||
// such may be negotiated by the normal Negotiate function.
|
||||
func NegotiateIncludingOpenMetrics(h http.Header) Format {
|
||||
for _, ac := range goautoneg.ParseAccept(h.Get(hdrAccept)) {
|
||||
ver := ac.Params["version"]
|
||||
if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol {
|
||||
switch ac.Params["encoding"] {
|
||||
case "delimited":
|
||||
return FmtProtoDelim
|
||||
case "text":
|
||||
return FmtProtoText
|
||||
case "compact-text":
|
||||
return FmtProtoCompact
|
||||
}
|
||||
}
|
||||
if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") {
|
||||
return FmtText
|
||||
}
|
||||
if ac.Type+"/"+ac.SubType == OpenMetricsType && (ver == OpenMetricsVersion || ver == "") {
|
||||
return FmtOpenMetrics
|
||||
}
|
||||
}
|
||||
return FmtText
|
||||
}
|
||||
|
||||
// NewEncoder returns a new encoder based on content type negotiation. All
|
||||
// Encoder implementations returned by NewEncoder also implement Closer, and
|
||||
// callers should always call the Close method. It is currently only required
|
||||
// for FmtOpenMetrics, but a future (breaking) release will add the Close method
|
||||
// to the Encoder interface directly. The current version of the Encoder
|
||||
// interface is kept for backwards compatibility.
|
||||
func NewEncoder(w io.Writer, format Format) Encoder {
|
||||
switch format {
|
||||
case FmtProtoDelim:
|
||||
return encoderCloser{
|
||||
encode: func(v *dto.MetricFamily) error {
|
||||
_, err := pbutil.WriteDelimited(w, v)
|
||||
return err
|
||||
},
|
||||
close: func() error { return nil },
|
||||
}
|
||||
case FmtProtoCompact:
|
||||
return encoderCloser{
|
||||
encode: func(v *dto.MetricFamily) error {
|
||||
_, err := fmt.Fprintln(w, v.String())
|
||||
return err
|
||||
},
|
||||
close: func() error { return nil },
|
||||
}
|
||||
case FmtProtoText:
|
||||
return encoderCloser{
|
||||
encode: func(v *dto.MetricFamily) error {
|
||||
_, err := fmt.Fprintln(w, proto.MarshalTextString(v))
|
||||
return err
|
||||
},
|
||||
close: func() error { return nil },
|
||||
}
|
||||
case FmtText:
|
||||
return encoderCloser{
|
||||
encode: func(v *dto.MetricFamily) error {
|
||||
_, err := MetricFamilyToText(w, v)
|
||||
return err
|
||||
},
|
||||
close: func() error { return nil },
|
||||
}
|
||||
case FmtOpenMetrics:
|
||||
return encoderCloser{
|
||||
encode: func(v *dto.MetricFamily) error {
|
||||
_, err := MetricFamilyToOpenMetrics(w, v)
|
||||
return err
|
||||
},
|
||||
close: func() error {
|
||||
_, err := FinalizeOpenMetrics(w)
|
||||
return err
|
||||
},
|
||||
}
|
||||
}
|
||||
panic(fmt.Errorf("expfmt.NewEncoder: unknown format %q", format))
|
||||
}
|
41
vendor/github.com/prometheus/common/expfmt/expfmt.go
generated
vendored
Normal file
41
vendor/github.com/prometheus/common/expfmt/expfmt.go
generated
vendored
Normal file
@ -0,0 +1,41 @@
|
||||
// Copyright 2015 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
// Package expfmt contains tools for reading and writing Prometheus metrics.
|
||||
package expfmt
|
||||
|
||||
// Format specifies the HTTP content type of the different wire protocols.
|
||||
type Format string
|
||||
|
||||
// Constants to assemble the Content-Type values for the different wire protocols.
|
||||
const (
|
||||
TextVersion = "0.0.4"
|
||||
ProtoType = `application/vnd.google.protobuf`
|
||||
ProtoProtocol = `io.prometheus.client.MetricFamily`
|
||||
ProtoFmt = ProtoType + "; proto=" + ProtoProtocol + ";"
|
||||
OpenMetricsType = `application/openmetrics-text`
|
||||
OpenMetricsVersion = "0.0.1"
|
||||
|
||||
// The Content-Type values for the different wire protocols.
|
||||
FmtUnknown Format = `<unknown>`
|
||||
FmtText Format = `text/plain; version=` + TextVersion + `; charset=utf-8`
|
||||
FmtProtoDelim Format = ProtoFmt + ` encoding=delimited`
|
||||
FmtProtoText Format = ProtoFmt + ` encoding=text`
|
||||
FmtProtoCompact Format = ProtoFmt + ` encoding=compact-text`
|
||||
FmtOpenMetrics Format = OpenMetricsType + `; version=` + OpenMetricsVersion + `; charset=utf-8`
|
||||
)
|
||||
|
||||
const (
|
||||
hdrContentType = "Content-Type"
|
||||
hdrAccept = "Accept"
|
||||
)
|
36
vendor/github.com/prometheus/common/expfmt/fuzz.go
generated
vendored
Normal file
36
vendor/github.com/prometheus/common/expfmt/fuzz.go
generated
vendored
Normal file
@ -0,0 +1,36 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
// Build only when actually fuzzing
|
||||
// +build gofuzz
|
||||
|
||||
package expfmt
|
||||
|
||||
import "bytes"
|
||||
|
||||
// Fuzz text metric parser with with github.com/dvyukov/go-fuzz:
|
||||
//
|
||||
// go-fuzz-build github.com/prometheus/common/expfmt
|
||||
// go-fuzz -bin expfmt-fuzz.zip -workdir fuzz
|
||||
//
|
||||
// Further input samples should go in the folder fuzz/corpus.
|
||||
func Fuzz(in []byte) int {
|
||||
parser := TextParser{}
|
||||
_, err := parser.TextToMetricFamilies(bytes.NewReader(in))
|
||||
|
||||
if err != nil {
|
||||
return 0
|
||||
}
|
||||
|
||||
return 1
|
||||
}
|
527
vendor/github.com/prometheus/common/expfmt/openmetrics_create.go
generated
vendored
Normal file
527
vendor/github.com/prometheus/common/expfmt/openmetrics_create.go
generated
vendored
Normal file
@ -0,0 +1,527 @@
|
||||
// Copyright 2020 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package expfmt
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
"github.com/golang/protobuf/ptypes"
|
||||
"github.com/prometheus/common/model"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// MetricFamilyToOpenMetrics converts a MetricFamily proto message into the
|
||||
// OpenMetrics text format and writes the resulting lines to 'out'. It returns
|
||||
// the number of bytes written and any error encountered. The output will have
|
||||
// the same order as the input, no further sorting is performed. Furthermore,
|
||||
// this function assumes the input is already sanitized and does not perform any
|
||||
// sanity checks. If the input contains duplicate metrics or invalid metric or
|
||||
// label names, the conversion will result in invalid text format output.
|
||||
//
|
||||
// This function fulfills the type 'expfmt.encoder'.
|
||||
//
|
||||
// Note that OpenMetrics requires a final `# EOF` line. Since this function acts
|
||||
// on individual metric families, it is the responsibility of the caller to
|
||||
// append this line to 'out' once all metric families have been written.
|
||||
// Conveniently, this can be done by calling FinalizeOpenMetrics.
|
||||
//
|
||||
// The output should be fully OpenMetrics compliant. However, there are a few
|
||||
// missing features and peculiarities to avoid complications when switching from
|
||||
// Prometheus to OpenMetrics or vice versa:
|
||||
//
|
||||
// - Counters are expected to have the `_total` suffix in their metric name. In
|
||||
// the output, the suffix will be truncated from the `# TYPE` and `# HELP`
|
||||
// line. A counter with a missing `_total` suffix is not an error. However,
|
||||
// its type will be set to `unknown` in that case to avoid invalid OpenMetrics
|
||||
// output.
|
||||
//
|
||||
// - No support for the following (optional) features: `# UNIT` line, `_created`
|
||||
// line, info type, stateset type, gaugehistogram type.
|
||||
//
|
||||
// - The size of exemplar labels is not checked (i.e. it's possible to create
|
||||
// exemplars that are larger than allowed by the OpenMetrics specification).
|
||||
//
|
||||
// - The value of Counters is not checked. (OpenMetrics doesn't allow counters
|
||||
// with a `NaN` value.)
|
||||
func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int, err error) {
|
||||
name := in.GetName()
|
||||
if name == "" {
|
||||
return 0, fmt.Errorf("MetricFamily has no name: %s", in)
|
||||
}
|
||||
|
||||
// Try the interface upgrade. If it doesn't work, we'll use a
|
||||
// bufio.Writer from the sync.Pool.
|
||||
w, ok := out.(enhancedWriter)
|
||||
if !ok {
|
||||
b := bufPool.Get().(*bufio.Writer)
|
||||
b.Reset(out)
|
||||
w = b
|
||||
defer func() {
|
||||
bErr := b.Flush()
|
||||
if err == nil {
|
||||
err = bErr
|
||||
}
|
||||
bufPool.Put(b)
|
||||
}()
|
||||
}
|
||||
|
||||
var (
|
||||
n int
|
||||
metricType = in.GetType()
|
||||
shortName = name
|
||||
)
|
||||
if metricType == dto.MetricType_COUNTER && strings.HasSuffix(shortName, "_total") {
|
||||
shortName = name[:len(name)-6]
|
||||
}
|
||||
|
||||
// Comments, first HELP, then TYPE.
|
||||
if in.Help != nil {
|
||||
n, err = w.WriteString("# HELP ")
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = w.WriteString(shortName)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
err = w.WriteByte(' ')
|
||||
written++
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = writeEscapedString(w, *in.Help, true)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
err = w.WriteByte('\n')
|
||||
written++
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
n, err = w.WriteString("# TYPE ")
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = w.WriteString(shortName)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
switch metricType {
|
||||
case dto.MetricType_COUNTER:
|
||||
if strings.HasSuffix(name, "_total") {
|
||||
n, err = w.WriteString(" counter\n")
|
||||
} else {
|
||||
n, err = w.WriteString(" unknown\n")
|
||||
}
|
||||
case dto.MetricType_GAUGE:
|
||||
n, err = w.WriteString(" gauge\n")
|
||||
case dto.MetricType_SUMMARY:
|
||||
n, err = w.WriteString(" summary\n")
|
||||
case dto.MetricType_UNTYPED:
|
||||
n, err = w.WriteString(" unknown\n")
|
||||
case dto.MetricType_HISTOGRAM:
|
||||
n, err = w.WriteString(" histogram\n")
|
||||
default:
|
||||
return written, fmt.Errorf("unknown metric type %s", metricType.String())
|
||||
}
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
// Finally the samples, one line for each.
|
||||
for _, metric := range in.Metric {
|
||||
switch metricType {
|
||||
case dto.MetricType_COUNTER:
|
||||
if metric.Counter == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected counter in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
// Note that we have ensured above that either the name
|
||||
// ends on `_total` or that the rendered type is
|
||||
// `unknown`. Therefore, no `_total` must be added here.
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "", metric, "", 0,
|
||||
metric.Counter.GetValue(), 0, false,
|
||||
metric.Counter.Exemplar,
|
||||
)
|
||||
case dto.MetricType_GAUGE:
|
||||
if metric.Gauge == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected gauge in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "", metric, "", 0,
|
||||
metric.Gauge.GetValue(), 0, false,
|
||||
nil,
|
||||
)
|
||||
case dto.MetricType_UNTYPED:
|
||||
if metric.Untyped == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected untyped in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "", metric, "", 0,
|
||||
metric.Untyped.GetValue(), 0, false,
|
||||
nil,
|
||||
)
|
||||
case dto.MetricType_SUMMARY:
|
||||
if metric.Summary == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected summary in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
for _, q := range metric.Summary.Quantile {
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "", metric,
|
||||
model.QuantileLabel, q.GetQuantile(),
|
||||
q.GetValue(), 0, false,
|
||||
nil,
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "_sum", metric, "", 0,
|
||||
metric.Summary.GetSampleSum(), 0, false,
|
||||
nil,
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "_count", metric, "", 0,
|
||||
0, metric.Summary.GetSampleCount(), true,
|
||||
nil,
|
||||
)
|
||||
case dto.MetricType_HISTOGRAM:
|
||||
if metric.Histogram == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected histogram in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
infSeen := false
|
||||
for _, b := range metric.Histogram.Bucket {
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "_bucket", metric,
|
||||
model.BucketLabel, b.GetUpperBound(),
|
||||
0, b.GetCumulativeCount(), true,
|
||||
b.Exemplar,
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if math.IsInf(b.GetUpperBound(), +1) {
|
||||
infSeen = true
|
||||
}
|
||||
}
|
||||
if !infSeen {
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "_bucket", metric,
|
||||
model.BucketLabel, math.Inf(+1),
|
||||
0, metric.Histogram.GetSampleCount(), true,
|
||||
nil,
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "_sum", metric, "", 0,
|
||||
metric.Histogram.GetSampleSum(), 0, false,
|
||||
nil,
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = writeOpenMetricsSample(
|
||||
w, name, "_count", metric, "", 0,
|
||||
0, metric.Histogram.GetSampleCount(), true,
|
||||
nil,
|
||||
)
|
||||
default:
|
||||
return written, fmt.Errorf(
|
||||
"unexpected type in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// FinalizeOpenMetrics writes the final `# EOF\n` line required by OpenMetrics.
|
||||
func FinalizeOpenMetrics(w io.Writer) (written int, err error) {
|
||||
return w.Write([]byte("# EOF\n"))
|
||||
}
|
||||
|
||||
// writeOpenMetricsSample writes a single sample in OpenMetrics text format to
|
||||
// w, given the metric name, the metric proto message itself, optionally an
|
||||
// additional label name with a float64 value (use empty string as label name if
|
||||
// not required), the value (optionally as float64 or uint64, determined by
|
||||
// useIntValue), and optionally an exemplar (use nil if not required). The
|
||||
// function returns the number of bytes written and any error encountered.
|
||||
func writeOpenMetricsSample(
|
||||
w enhancedWriter,
|
||||
name, suffix string,
|
||||
metric *dto.Metric,
|
||||
additionalLabelName string, additionalLabelValue float64,
|
||||
floatValue float64, intValue uint64, useIntValue bool,
|
||||
exemplar *dto.Exemplar,
|
||||
) (int, error) {
|
||||
var written int
|
||||
n, err := w.WriteString(name)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
if suffix != "" {
|
||||
n, err = w.WriteString(suffix)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
n, err = writeOpenMetricsLabelPairs(
|
||||
w, metric.Label, additionalLabelName, additionalLabelValue,
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
err = w.WriteByte(' ')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
if useIntValue {
|
||||
n, err = writeUint(w, intValue)
|
||||
} else {
|
||||
n, err = writeOpenMetricsFloat(w, floatValue)
|
||||
}
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
if metric.TimestampMs != nil {
|
||||
err = w.WriteByte(' ')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
// TODO(beorn7): Format this directly without converting to a float first.
|
||||
n, err = writeOpenMetricsFloat(w, float64(*metric.TimestampMs)/1000)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
if exemplar != nil {
|
||||
n, err = writeExemplar(w, exemplar)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
err = w.WriteByte('\n')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
return written, nil
|
||||
}
|
||||
|
||||
// writeOpenMetricsLabelPairs works like writeOpenMetrics but formats the float
|
||||
// in OpenMetrics style.
|
||||
func writeOpenMetricsLabelPairs(
|
||||
w enhancedWriter,
|
||||
in []*dto.LabelPair,
|
||||
additionalLabelName string, additionalLabelValue float64,
|
||||
) (int, error) {
|
||||
if len(in) == 0 && additionalLabelName == "" {
|
||||
return 0, nil
|
||||
}
|
||||
var (
|
||||
written int
|
||||
separator byte = '{'
|
||||
)
|
||||
for _, lp := range in {
|
||||
err := w.WriteByte(separator)
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err := w.WriteString(lp.GetName())
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = w.WriteString(`="`)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = writeEscapedString(w, lp.GetValue(), true)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
err = w.WriteByte('"')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
separator = ','
|
||||
}
|
||||
if additionalLabelName != "" {
|
||||
err := w.WriteByte(separator)
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err := w.WriteString(additionalLabelName)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = w.WriteString(`="`)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = writeOpenMetricsFloat(w, additionalLabelValue)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
err = w.WriteByte('"')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
err := w.WriteByte('}')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
return written, nil
|
||||
}
|
||||
|
||||
// writeExemplar writes the provided exemplar in OpenMetrics format to w. The
|
||||
// function returns the number of bytes written and any error encountered.
|
||||
func writeExemplar(w enhancedWriter, e *dto.Exemplar) (int, error) {
|
||||
written := 0
|
||||
n, err := w.WriteString(" # ")
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = writeOpenMetricsLabelPairs(w, e.Label, "", 0)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
err = w.WriteByte(' ')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = writeOpenMetricsFloat(w, e.GetValue())
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
if e.Timestamp != nil {
|
||||
err = w.WriteByte(' ')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
ts, err := ptypes.Timestamp((*e).Timestamp)
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
// TODO(beorn7): Format this directly from components of ts to
|
||||
// avoid overflow/underflow and precision issues of the float
|
||||
// conversion.
|
||||
n, err = writeOpenMetricsFloat(w, float64(ts.UnixNano())/1e9)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
return written, nil
|
||||
}
|
||||
|
||||
// writeOpenMetricsFloat works like writeFloat but appends ".0" if the resulting
|
||||
// number would otherwise contain neither a "." nor an "e".
|
||||
func writeOpenMetricsFloat(w enhancedWriter, f float64) (int, error) {
|
||||
switch {
|
||||
case f == 1:
|
||||
return w.WriteString("1.0")
|
||||
case f == 0:
|
||||
return w.WriteString("0.0")
|
||||
case f == -1:
|
||||
return w.WriteString("-1.0")
|
||||
case math.IsNaN(f):
|
||||
return w.WriteString("NaN")
|
||||
case math.IsInf(f, +1):
|
||||
return w.WriteString("+Inf")
|
||||
case math.IsInf(f, -1):
|
||||
return w.WriteString("-Inf")
|
||||
default:
|
||||
bp := numBufPool.Get().(*[]byte)
|
||||
*bp = strconv.AppendFloat((*bp)[:0], f, 'g', -1, 64)
|
||||
if !bytes.ContainsAny(*bp, "e.") {
|
||||
*bp = append(*bp, '.', '0')
|
||||
}
|
||||
written, err := w.Write(*bp)
|
||||
numBufPool.Put(bp)
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
|
||||
// writeUint is like writeInt just for uint64.
|
||||
func writeUint(w enhancedWriter, u uint64) (int, error) {
|
||||
bp := numBufPool.Get().(*[]byte)
|
||||
*bp = strconv.AppendUint((*bp)[:0], u, 10)
|
||||
written, err := w.Write(*bp)
|
||||
numBufPool.Put(bp)
|
||||
return written, err
|
||||
}
|
465
vendor/github.com/prometheus/common/expfmt/text_create.go
generated
vendored
Normal file
465
vendor/github.com/prometheus/common/expfmt/text_create.go
generated
vendored
Normal file
@ -0,0 +1,465 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package expfmt
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"math"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
|
||||
"github.com/prometheus/common/model"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
)
|
||||
|
||||
// enhancedWriter has all the enhanced write functions needed here. bufio.Writer
|
||||
// implements it.
|
||||
type enhancedWriter interface {
|
||||
io.Writer
|
||||
WriteRune(r rune) (n int, err error)
|
||||
WriteString(s string) (n int, err error)
|
||||
WriteByte(c byte) error
|
||||
}
|
||||
|
||||
const (
|
||||
initialNumBufSize = 24
|
||||
)
|
||||
|
||||
var (
|
||||
bufPool = sync.Pool{
|
||||
New: func() interface{} {
|
||||
return bufio.NewWriter(ioutil.Discard)
|
||||
},
|
||||
}
|
||||
numBufPool = sync.Pool{
|
||||
New: func() interface{} {
|
||||
b := make([]byte, 0, initialNumBufSize)
|
||||
return &b
|
||||
},
|
||||
}
|
||||
)
|
||||
|
||||
// MetricFamilyToText converts a MetricFamily proto message into text format and
|
||||
// writes the resulting lines to 'out'. It returns the number of bytes written
|
||||
// and any error encountered. The output will have the same order as the input,
|
||||
// no further sorting is performed. Furthermore, this function assumes the input
|
||||
// is already sanitized and does not perform any sanity checks. If the input
|
||||
// contains duplicate metrics or invalid metric or label names, the conversion
|
||||
// will result in invalid text format output.
|
||||
//
|
||||
// This method fulfills the type 'prometheus.encoder'.
|
||||
func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (written int, err error) {
|
||||
// Fail-fast checks.
|
||||
if len(in.Metric) == 0 {
|
||||
return 0, fmt.Errorf("MetricFamily has no metrics: %s", in)
|
||||
}
|
||||
name := in.GetName()
|
||||
if name == "" {
|
||||
return 0, fmt.Errorf("MetricFamily has no name: %s", in)
|
||||
}
|
||||
|
||||
// Try the interface upgrade. If it doesn't work, we'll use a
|
||||
// bufio.Writer from the sync.Pool.
|
||||
w, ok := out.(enhancedWriter)
|
||||
if !ok {
|
||||
b := bufPool.Get().(*bufio.Writer)
|
||||
b.Reset(out)
|
||||
w = b
|
||||
defer func() {
|
||||
bErr := b.Flush()
|
||||
if err == nil {
|
||||
err = bErr
|
||||
}
|
||||
bufPool.Put(b)
|
||||
}()
|
||||
}
|
||||
|
||||
var n int
|
||||
|
||||
// Comments, first HELP, then TYPE.
|
||||
if in.Help != nil {
|
||||
n, err = w.WriteString("# HELP ")
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = w.WriteString(name)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
err = w.WriteByte(' ')
|
||||
written++
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = writeEscapedString(w, *in.Help, false)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
err = w.WriteByte('\n')
|
||||
written++
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
n, err = w.WriteString("# TYPE ")
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = w.WriteString(name)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
metricType := in.GetType()
|
||||
switch metricType {
|
||||
case dto.MetricType_COUNTER:
|
||||
n, err = w.WriteString(" counter\n")
|
||||
case dto.MetricType_GAUGE:
|
||||
n, err = w.WriteString(" gauge\n")
|
||||
case dto.MetricType_SUMMARY:
|
||||
n, err = w.WriteString(" summary\n")
|
||||
case dto.MetricType_UNTYPED:
|
||||
n, err = w.WriteString(" untyped\n")
|
||||
case dto.MetricType_HISTOGRAM:
|
||||
n, err = w.WriteString(" histogram\n")
|
||||
default:
|
||||
return written, fmt.Errorf("unknown metric type %s", metricType.String())
|
||||
}
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
// Finally the samples, one line for each.
|
||||
for _, metric := range in.Metric {
|
||||
switch metricType {
|
||||
case dto.MetricType_COUNTER:
|
||||
if metric.Counter == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected counter in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
n, err = writeSample(
|
||||
w, name, "", metric, "", 0,
|
||||
metric.Counter.GetValue(),
|
||||
)
|
||||
case dto.MetricType_GAUGE:
|
||||
if metric.Gauge == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected gauge in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
n, err = writeSample(
|
||||
w, name, "", metric, "", 0,
|
||||
metric.Gauge.GetValue(),
|
||||
)
|
||||
case dto.MetricType_UNTYPED:
|
||||
if metric.Untyped == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected untyped in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
n, err = writeSample(
|
||||
w, name, "", metric, "", 0,
|
||||
metric.Untyped.GetValue(),
|
||||
)
|
||||
case dto.MetricType_SUMMARY:
|
||||
if metric.Summary == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected summary in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
for _, q := range metric.Summary.Quantile {
|
||||
n, err = writeSample(
|
||||
w, name, "", metric,
|
||||
model.QuantileLabel, q.GetQuantile(),
|
||||
q.GetValue(),
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
n, err = writeSample(
|
||||
w, name, "_sum", metric, "", 0,
|
||||
metric.Summary.GetSampleSum(),
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = writeSample(
|
||||
w, name, "_count", metric, "", 0,
|
||||
float64(metric.Summary.GetSampleCount()),
|
||||
)
|
||||
case dto.MetricType_HISTOGRAM:
|
||||
if metric.Histogram == nil {
|
||||
return written, fmt.Errorf(
|
||||
"expected histogram in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
infSeen := false
|
||||
for _, b := range metric.Histogram.Bucket {
|
||||
n, err = writeSample(
|
||||
w, name, "_bucket", metric,
|
||||
model.BucketLabel, b.GetUpperBound(),
|
||||
float64(b.GetCumulativeCount()),
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if math.IsInf(b.GetUpperBound(), +1) {
|
||||
infSeen = true
|
||||
}
|
||||
}
|
||||
if !infSeen {
|
||||
n, err = writeSample(
|
||||
w, name, "_bucket", metric,
|
||||
model.BucketLabel, math.Inf(+1),
|
||||
float64(metric.Histogram.GetSampleCount()),
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
n, err = writeSample(
|
||||
w, name, "_sum", metric, "", 0,
|
||||
metric.Histogram.GetSampleSum(),
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
n, err = writeSample(
|
||||
w, name, "_count", metric, "", 0,
|
||||
float64(metric.Histogram.GetSampleCount()),
|
||||
)
|
||||
default:
|
||||
return written, fmt.Errorf(
|
||||
"unexpected type in metric %s %s", name, metric,
|
||||
)
|
||||
}
|
||||
written += n
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// writeSample writes a single sample in text format to w, given the metric
|
||||
// name, the metric proto message itself, optionally an additional label name
|
||||
// with a float64 value (use empty string as label name if not required), and
|
||||
// the value. The function returns the number of bytes written and any error
|
||||
// encountered.
|
||||
func writeSample(
|
||||
w enhancedWriter,
|
||||
name, suffix string,
|
||||
metric *dto.Metric,
|
||||
additionalLabelName string, additionalLabelValue float64,
|
||||
value float64,
|
||||
) (int, error) {
|
||||
var written int
|
||||
n, err := w.WriteString(name)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
if suffix != "" {
|
||||
n, err = w.WriteString(suffix)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
n, err = writeLabelPairs(
|
||||
w, metric.Label, additionalLabelName, additionalLabelValue,
|
||||
)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
err = w.WriteByte(' ')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = writeFloat(w, value)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
if metric.TimestampMs != nil {
|
||||
err = w.WriteByte(' ')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = writeInt(w, *metric.TimestampMs)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
err = w.WriteByte('\n')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
return written, nil
|
||||
}
|
||||
|
||||
// writeLabelPairs converts a slice of LabelPair proto messages plus the
|
||||
// explicitly given additional label pair into text formatted as required by the
|
||||
// text format and writes it to 'w'. An empty slice in combination with an empty
|
||||
// string 'additionalLabelName' results in nothing being written. Otherwise, the
|
||||
// label pairs are written, escaped as required by the text format, and enclosed
|
||||
// in '{...}'. The function returns the number of bytes written and any error
|
||||
// encountered.
|
||||
func writeLabelPairs(
|
||||
w enhancedWriter,
|
||||
in []*dto.LabelPair,
|
||||
additionalLabelName string, additionalLabelValue float64,
|
||||
) (int, error) {
|
||||
if len(in) == 0 && additionalLabelName == "" {
|
||||
return 0, nil
|
||||
}
|
||||
var (
|
||||
written int
|
||||
separator byte = '{'
|
||||
)
|
||||
for _, lp := range in {
|
||||
err := w.WriteByte(separator)
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err := w.WriteString(lp.GetName())
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = w.WriteString(`="`)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = writeEscapedString(w, lp.GetValue(), true)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
err = w.WriteByte('"')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
separator = ','
|
||||
}
|
||||
if additionalLabelName != "" {
|
||||
err := w.WriteByte(separator)
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err := w.WriteString(additionalLabelName)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = w.WriteString(`="`)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
n, err = writeFloat(w, additionalLabelValue)
|
||||
written += n
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
err = w.WriteByte('"')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
err := w.WriteByte('}')
|
||||
written++
|
||||
if err != nil {
|
||||
return written, err
|
||||
}
|
||||
return written, nil
|
||||
}
|
||||
|
||||
// writeEscapedString replaces '\' by '\\', new line character by '\n', and - if
|
||||
// includeDoubleQuote is true - '"' by '\"'.
|
||||
var (
|
||||
escaper = strings.NewReplacer("\\", `\\`, "\n", `\n`)
|
||||
quotedEscaper = strings.NewReplacer("\\", `\\`, "\n", `\n`, "\"", `\"`)
|
||||
)
|
||||
|
||||
func writeEscapedString(w enhancedWriter, v string, includeDoubleQuote bool) (int, error) {
|
||||
if includeDoubleQuote {
|
||||
return quotedEscaper.WriteString(w, v)
|
||||
}
|
||||
return escaper.WriteString(w, v)
|
||||
}
|
||||
|
||||
// writeFloat is equivalent to fmt.Fprint with a float64 argument but hardcodes
|
||||
// a few common cases for increased efficiency. For non-hardcoded cases, it uses
|
||||
// strconv.AppendFloat to avoid allocations, similar to writeInt.
|
||||
func writeFloat(w enhancedWriter, f float64) (int, error) {
|
||||
switch {
|
||||
case f == 1:
|
||||
return 1, w.WriteByte('1')
|
||||
case f == 0:
|
||||
return 1, w.WriteByte('0')
|
||||
case f == -1:
|
||||
return w.WriteString("-1")
|
||||
case math.IsNaN(f):
|
||||
return w.WriteString("NaN")
|
||||
case math.IsInf(f, +1):
|
||||
return w.WriteString("+Inf")
|
||||
case math.IsInf(f, -1):
|
||||
return w.WriteString("-Inf")
|
||||
default:
|
||||
bp := numBufPool.Get().(*[]byte)
|
||||
*bp = strconv.AppendFloat((*bp)[:0], f, 'g', -1, 64)
|
||||
written, err := w.Write(*bp)
|
||||
numBufPool.Put(bp)
|
||||
return written, err
|
||||
}
|
||||
}
|
||||
|
||||
// writeInt is equivalent to fmt.Fprint with an int64 argument but uses
|
||||
// strconv.AppendInt with a byte slice taken from a sync.Pool to avoid
|
||||
// allocations.
|
||||
func writeInt(w enhancedWriter, i int64) (int, error) {
|
||||
bp := numBufPool.Get().(*[]byte)
|
||||
*bp = strconv.AppendInt((*bp)[:0], i, 10)
|
||||
written, err := w.Write(*bp)
|
||||
numBufPool.Put(bp)
|
||||
return written, err
|
||||
}
|
775
vendor/github.com/prometheus/common/expfmt/text_parse.go
generated
vendored
Normal file
775
vendor/github.com/prometheus/common/expfmt/text_parse.go
generated
vendored
Normal file
@ -0,0 +1,775 @@
|
||||
// Copyright 2014 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package expfmt
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
dto "github.com/prometheus/client_model/go"
|
||||
|
||||
"github.com/golang/protobuf/proto"
|
||||
"github.com/prometheus/common/model"
|
||||
)
|
||||
|
||||
// A stateFn is a function that represents a state in a state machine. By
|
||||
// executing it, the state is progressed to the next state. The stateFn returns
|
||||
// another stateFn, which represents the new state. The end state is represented
|
||||
// by nil.
|
||||
type stateFn func() stateFn
|
||||
|
||||
// ParseError signals errors while parsing the simple and flat text-based
|
||||
// exchange format.
|
||||
type ParseError struct {
|
||||
Line int
|
||||
Msg string
|
||||
}
|
||||
|
||||
// Error implements the error interface.
|
||||
func (e ParseError) Error() string {
|
||||
return fmt.Sprintf("text format parsing error in line %d: %s", e.Line, e.Msg)
|
||||
}
|
||||
|
||||
// TextParser is used to parse the simple and flat text-based exchange format. Its
|
||||
// zero value is ready to use.
|
||||
type TextParser struct {
|
||||
metricFamiliesByName map[string]*dto.MetricFamily
|
||||
buf *bufio.Reader // Where the parsed input is read through.
|
||||
err error // Most recent error.
|
||||
lineCount int // Tracks the line count for error messages.
|
||||
currentByte byte // The most recent byte read.
|
||||
currentToken bytes.Buffer // Re-used each time a token has to be gathered from multiple bytes.
|
||||
currentMF *dto.MetricFamily
|
||||
currentMetric *dto.Metric
|
||||
currentLabelPair *dto.LabelPair
|
||||
|
||||
// The remaining member variables are only used for summaries/histograms.
|
||||
currentLabels map[string]string // All labels including '__name__' but excluding 'quantile'/'le'
|
||||
// Summary specific.
|
||||
summaries map[uint64]*dto.Metric // Key is created with LabelsToSignature.
|
||||
currentQuantile float64
|
||||
// Histogram specific.
|
||||
histograms map[uint64]*dto.Metric // Key is created with LabelsToSignature.
|
||||
currentBucket float64
|
||||
// These tell us if the currently processed line ends on '_count' or
|
||||
// '_sum' respectively and belong to a summary/histogram, representing the sample
|
||||
// count and sum of that summary/histogram.
|
||||
currentIsSummaryCount, currentIsSummarySum bool
|
||||
currentIsHistogramCount, currentIsHistogramSum bool
|
||||
}
|
||||
|
||||
// TextToMetricFamilies reads 'in' as the simple and flat text-based exchange
|
||||
// format and creates MetricFamily proto messages. It returns the MetricFamily
|
||||
// proto messages in a map where the metric names are the keys, along with any
|
||||
// error encountered.
|
||||
//
|
||||
// If the input contains duplicate metrics (i.e. lines with the same metric name
|
||||
// and exactly the same label set), the resulting MetricFamily will contain
|
||||
// duplicate Metric proto messages. Similar is true for duplicate label
|
||||
// names. Checks for duplicates have to be performed separately, if required.
|
||||
// Also note that neither the metrics within each MetricFamily are sorted nor
|
||||
// the label pairs within each Metric. Sorting is not required for the most
|
||||
// frequent use of this method, which is sample ingestion in the Prometheus
|
||||
// server. However, for presentation purposes, you might want to sort the
|
||||
// metrics, and in some cases, you must sort the labels, e.g. for consumption by
|
||||
// the metric family injection hook of the Prometheus registry.
|
||||
//
|
||||
// Summaries and histograms are rather special beasts. You would probably not
|
||||
// use them in the simple text format anyway. This method can deal with
|
||||
// summaries and histograms if they are presented in exactly the way the
|
||||
// text.Create function creates them.
|
||||
//
|
||||
// This method must not be called concurrently. If you want to parse different
|
||||
// input concurrently, instantiate a separate Parser for each goroutine.
|
||||
func (p *TextParser) TextToMetricFamilies(in io.Reader) (map[string]*dto.MetricFamily, error) {
|
||||
p.reset(in)
|
||||
for nextState := p.startOfLine; nextState != nil; nextState = nextState() {
|
||||
// Magic happens here...
|
||||
}
|
||||
// Get rid of empty metric families.
|
||||
for k, mf := range p.metricFamiliesByName {
|
||||
if len(mf.GetMetric()) == 0 {
|
||||
delete(p.metricFamiliesByName, k)
|
||||
}
|
||||
}
|
||||
// If p.err is io.EOF now, we have run into a premature end of the input
|
||||
// stream. Turn this error into something nicer and more
|
||||
// meaningful. (io.EOF is often used as a signal for the legitimate end
|
||||
// of an input stream.)
|
||||
if p.err == io.EOF {
|
||||
p.parseError("unexpected end of input stream")
|
||||
}
|
||||
return p.metricFamiliesByName, p.err
|
||||
}
|
||||
|
||||
func (p *TextParser) reset(in io.Reader) {
|
||||
p.metricFamiliesByName = map[string]*dto.MetricFamily{}
|
||||
if p.buf == nil {
|
||||
p.buf = bufio.NewReader(in)
|
||||
} else {
|
||||
p.buf.Reset(in)
|
||||
}
|
||||
p.err = nil
|
||||
p.lineCount = 0
|
||||
if p.summaries == nil || len(p.summaries) > 0 {
|
||||
p.summaries = map[uint64]*dto.Metric{}
|
||||
}
|
||||
if p.histograms == nil || len(p.histograms) > 0 {
|
||||
p.histograms = map[uint64]*dto.Metric{}
|
||||
}
|
||||
p.currentQuantile = math.NaN()
|
||||
p.currentBucket = math.NaN()
|
||||
}
|
||||
|
||||
// startOfLine represents the state where the next byte read from p.buf is the
|
||||
// start of a line (or whitespace leading up to it).
|
||||
func (p *TextParser) startOfLine() stateFn {
|
||||
p.lineCount++
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
// End of input reached. This is the only case where
|
||||
// that is not an error but a signal that we are done.
|
||||
p.err = nil
|
||||
return nil
|
||||
}
|
||||
switch p.currentByte {
|
||||
case '#':
|
||||
return p.startComment
|
||||
case '\n':
|
||||
return p.startOfLine // Empty line, start the next one.
|
||||
}
|
||||
return p.readingMetricName
|
||||
}
|
||||
|
||||
// startComment represents the state where the next byte read from p.buf is the
|
||||
// start of a comment (or whitespace leading up to it).
|
||||
func (p *TextParser) startComment() stateFn {
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.currentByte == '\n' {
|
||||
return p.startOfLine
|
||||
}
|
||||
if p.readTokenUntilWhitespace(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
// If we have hit the end of line already, there is nothing left
|
||||
// to do. This is not considered a syntax error.
|
||||
if p.currentByte == '\n' {
|
||||
return p.startOfLine
|
||||
}
|
||||
keyword := p.currentToken.String()
|
||||
if keyword != "HELP" && keyword != "TYPE" {
|
||||
// Generic comment, ignore by fast forwarding to end of line.
|
||||
for p.currentByte != '\n' {
|
||||
if p.currentByte, p.err = p.buf.ReadByte(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
}
|
||||
return p.startOfLine
|
||||
}
|
||||
// There is something. Next has to be a metric name.
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.readTokenAsMetricName(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.currentByte == '\n' {
|
||||
// At the end of the line already.
|
||||
// Again, this is not considered a syntax error.
|
||||
return p.startOfLine
|
||||
}
|
||||
if !isBlankOrTab(p.currentByte) {
|
||||
p.parseError("invalid metric name in comment")
|
||||
return nil
|
||||
}
|
||||
p.setOrCreateCurrentMF()
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.currentByte == '\n' {
|
||||
// At the end of the line already.
|
||||
// Again, this is not considered a syntax error.
|
||||
return p.startOfLine
|
||||
}
|
||||
switch keyword {
|
||||
case "HELP":
|
||||
return p.readingHelp
|
||||
case "TYPE":
|
||||
return p.readingType
|
||||
}
|
||||
panic(fmt.Sprintf("code error: unexpected keyword %q", keyword))
|
||||
}
|
||||
|
||||
// readingMetricName represents the state where the last byte read (now in
|
||||
// p.currentByte) is the first byte of a metric name.
|
||||
func (p *TextParser) readingMetricName() stateFn {
|
||||
if p.readTokenAsMetricName(); p.err != nil {
|
||||
return nil
|
||||
}
|
||||
if p.currentToken.Len() == 0 {
|
||||
p.parseError("invalid metric name")
|
||||
return nil
|
||||
}
|
||||
p.setOrCreateCurrentMF()
|
||||
// Now is the time to fix the type if it hasn't happened yet.
|
||||
if p.currentMF.Type == nil {
|
||||
p.currentMF.Type = dto.MetricType_UNTYPED.Enum()
|
||||
}
|
||||
p.currentMetric = &dto.Metric{}
|
||||
// Do not append the newly created currentMetric to
|
||||
// currentMF.Metric right now. First wait if this is a summary,
|
||||
// and the metric exists already, which we can only know after
|
||||
// having read all the labels.
|
||||
if p.skipBlankTabIfCurrentBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
return p.readingLabels
|
||||
}
|
||||
|
||||
// readingLabels represents the state where the last byte read (now in
|
||||
// p.currentByte) is either the first byte of the label set (i.e. a '{'), or the
|
||||
// first byte of the value (otherwise).
|
||||
func (p *TextParser) readingLabels() stateFn {
|
||||
// Summaries/histograms are special. We have to reset the
|
||||
// currentLabels map, currentQuantile and currentBucket before starting to
|
||||
// read labels.
|
||||
if p.currentMF.GetType() == dto.MetricType_SUMMARY || p.currentMF.GetType() == dto.MetricType_HISTOGRAM {
|
||||
p.currentLabels = map[string]string{}
|
||||
p.currentLabels[string(model.MetricNameLabel)] = p.currentMF.GetName()
|
||||
p.currentQuantile = math.NaN()
|
||||
p.currentBucket = math.NaN()
|
||||
}
|
||||
if p.currentByte != '{' {
|
||||
return p.readingValue
|
||||
}
|
||||
return p.startLabelName
|
||||
}
|
||||
|
||||
// startLabelName represents the state where the next byte read from p.buf is
|
||||
// the start of a label name (or whitespace leading up to it).
|
||||
func (p *TextParser) startLabelName() stateFn {
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.currentByte == '}' {
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
return p.readingValue
|
||||
}
|
||||
if p.readTokenAsLabelName(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.currentToken.Len() == 0 {
|
||||
p.parseError(fmt.Sprintf("invalid label name for metric %q", p.currentMF.GetName()))
|
||||
return nil
|
||||
}
|
||||
p.currentLabelPair = &dto.LabelPair{Name: proto.String(p.currentToken.String())}
|
||||
if p.currentLabelPair.GetName() == string(model.MetricNameLabel) {
|
||||
p.parseError(fmt.Sprintf("label name %q is reserved", model.MetricNameLabel))
|
||||
return nil
|
||||
}
|
||||
// Special summary/histogram treatment. Don't add 'quantile' and 'le'
|
||||
// labels to 'real' labels.
|
||||
if !(p.currentMF.GetType() == dto.MetricType_SUMMARY && p.currentLabelPair.GetName() == model.QuantileLabel) &&
|
||||
!(p.currentMF.GetType() == dto.MetricType_HISTOGRAM && p.currentLabelPair.GetName() == model.BucketLabel) {
|
||||
p.currentMetric.Label = append(p.currentMetric.Label, p.currentLabelPair)
|
||||
}
|
||||
if p.skipBlankTabIfCurrentBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.currentByte != '=' {
|
||||
p.parseError(fmt.Sprintf("expected '=' after label name, found %q", p.currentByte))
|
||||
return nil
|
||||
}
|
||||
// Check for duplicate label names.
|
||||
labels := make(map[string]struct{})
|
||||
for _, l := range p.currentMetric.Label {
|
||||
lName := l.GetName()
|
||||
if _, exists := labels[lName]; !exists {
|
||||
labels[lName] = struct{}{}
|
||||
} else {
|
||||
p.parseError(fmt.Sprintf("duplicate label names for metric %q", p.currentMF.GetName()))
|
||||
return nil
|
||||
}
|
||||
}
|
||||
return p.startLabelValue
|
||||
}
|
||||
|
||||
// startLabelValue represents the state where the next byte read from p.buf is
|
||||
// the start of a (quoted) label value (or whitespace leading up to it).
|
||||
func (p *TextParser) startLabelValue() stateFn {
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.currentByte != '"' {
|
||||
p.parseError(fmt.Sprintf("expected '\"' at start of label value, found %q", p.currentByte))
|
||||
return nil
|
||||
}
|
||||
if p.readTokenAsLabelValue(); p.err != nil {
|
||||
return nil
|
||||
}
|
||||
if !model.LabelValue(p.currentToken.String()).IsValid() {
|
||||
p.parseError(fmt.Sprintf("invalid label value %q", p.currentToken.String()))
|
||||
return nil
|
||||
}
|
||||
p.currentLabelPair.Value = proto.String(p.currentToken.String())
|
||||
// Special treatment of summaries:
|
||||
// - Quantile labels are special, will result in dto.Quantile later.
|
||||
// - Other labels have to be added to currentLabels for signature calculation.
|
||||
if p.currentMF.GetType() == dto.MetricType_SUMMARY {
|
||||
if p.currentLabelPair.GetName() == model.QuantileLabel {
|
||||
if p.currentQuantile, p.err = parseFloat(p.currentLabelPair.GetValue()); p.err != nil {
|
||||
// Create a more helpful error message.
|
||||
p.parseError(fmt.Sprintf("expected float as value for 'quantile' label, got %q", p.currentLabelPair.GetValue()))
|
||||
return nil
|
||||
}
|
||||
} else {
|
||||
p.currentLabels[p.currentLabelPair.GetName()] = p.currentLabelPair.GetValue()
|
||||
}
|
||||
}
|
||||
// Similar special treatment of histograms.
|
||||
if p.currentMF.GetType() == dto.MetricType_HISTOGRAM {
|
||||
if p.currentLabelPair.GetName() == model.BucketLabel {
|
||||
if p.currentBucket, p.err = parseFloat(p.currentLabelPair.GetValue()); p.err != nil {
|
||||
// Create a more helpful error message.
|
||||
p.parseError(fmt.Sprintf("expected float as value for 'le' label, got %q", p.currentLabelPair.GetValue()))
|
||||
return nil
|
||||
}
|
||||
} else {
|
||||
p.currentLabels[p.currentLabelPair.GetName()] = p.currentLabelPair.GetValue()
|
||||
}
|
||||
}
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
switch p.currentByte {
|
||||
case ',':
|
||||
return p.startLabelName
|
||||
|
||||
case '}':
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
return p.readingValue
|
||||
default:
|
||||
p.parseError(fmt.Sprintf("unexpected end of label value %q", p.currentLabelPair.GetValue()))
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
// readingValue represents the state where the last byte read (now in
|
||||
// p.currentByte) is the first byte of the sample value (i.e. a float).
|
||||
func (p *TextParser) readingValue() stateFn {
|
||||
// When we are here, we have read all the labels, so for the
|
||||
// special case of a summary/histogram, we can finally find out
|
||||
// if the metric already exists.
|
||||
if p.currentMF.GetType() == dto.MetricType_SUMMARY {
|
||||
signature := model.LabelsToSignature(p.currentLabels)
|
||||
if summary := p.summaries[signature]; summary != nil {
|
||||
p.currentMetric = summary
|
||||
} else {
|
||||
p.summaries[signature] = p.currentMetric
|
||||
p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric)
|
||||
}
|
||||
} else if p.currentMF.GetType() == dto.MetricType_HISTOGRAM {
|
||||
signature := model.LabelsToSignature(p.currentLabels)
|
||||
if histogram := p.histograms[signature]; histogram != nil {
|
||||
p.currentMetric = histogram
|
||||
} else {
|
||||
p.histograms[signature] = p.currentMetric
|
||||
p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric)
|
||||
}
|
||||
} else {
|
||||
p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric)
|
||||
}
|
||||
if p.readTokenUntilWhitespace(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
value, err := parseFloat(p.currentToken.String())
|
||||
if err != nil {
|
||||
// Create a more helpful error message.
|
||||
p.parseError(fmt.Sprintf("expected float as value, got %q", p.currentToken.String()))
|
||||
return nil
|
||||
}
|
||||
switch p.currentMF.GetType() {
|
||||
case dto.MetricType_COUNTER:
|
||||
p.currentMetric.Counter = &dto.Counter{Value: proto.Float64(value)}
|
||||
case dto.MetricType_GAUGE:
|
||||
p.currentMetric.Gauge = &dto.Gauge{Value: proto.Float64(value)}
|
||||
case dto.MetricType_UNTYPED:
|
||||
p.currentMetric.Untyped = &dto.Untyped{Value: proto.Float64(value)}
|
||||
case dto.MetricType_SUMMARY:
|
||||
// *sigh*
|
||||
if p.currentMetric.Summary == nil {
|
||||
p.currentMetric.Summary = &dto.Summary{}
|
||||
}
|
||||
switch {
|
||||
case p.currentIsSummaryCount:
|
||||
p.currentMetric.Summary.SampleCount = proto.Uint64(uint64(value))
|
||||
case p.currentIsSummarySum:
|
||||
p.currentMetric.Summary.SampleSum = proto.Float64(value)
|
||||
case !math.IsNaN(p.currentQuantile):
|
||||
p.currentMetric.Summary.Quantile = append(
|
||||
p.currentMetric.Summary.Quantile,
|
||||
&dto.Quantile{
|
||||
Quantile: proto.Float64(p.currentQuantile),
|
||||
Value: proto.Float64(value),
|
||||
},
|
||||
)
|
||||
}
|
||||
case dto.MetricType_HISTOGRAM:
|
||||
// *sigh*
|
||||
if p.currentMetric.Histogram == nil {
|
||||
p.currentMetric.Histogram = &dto.Histogram{}
|
||||
}
|
||||
switch {
|
||||
case p.currentIsHistogramCount:
|
||||
p.currentMetric.Histogram.SampleCount = proto.Uint64(uint64(value))
|
||||
case p.currentIsHistogramSum:
|
||||
p.currentMetric.Histogram.SampleSum = proto.Float64(value)
|
||||
case !math.IsNaN(p.currentBucket):
|
||||
p.currentMetric.Histogram.Bucket = append(
|
||||
p.currentMetric.Histogram.Bucket,
|
||||
&dto.Bucket{
|
||||
UpperBound: proto.Float64(p.currentBucket),
|
||||
CumulativeCount: proto.Uint64(uint64(value)),
|
||||
},
|
||||
)
|
||||
}
|
||||
default:
|
||||
p.err = fmt.Errorf("unexpected type for metric name %q", p.currentMF.GetName())
|
||||
}
|
||||
if p.currentByte == '\n' {
|
||||
return p.startOfLine
|
||||
}
|
||||
return p.startTimestamp
|
||||
}
|
||||
|
||||
// startTimestamp represents the state where the next byte read from p.buf is
|
||||
// the start of the timestamp (or whitespace leading up to it).
|
||||
func (p *TextParser) startTimestamp() stateFn {
|
||||
if p.skipBlankTab(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.readTokenUntilWhitespace(); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
timestamp, err := strconv.ParseInt(p.currentToken.String(), 10, 64)
|
||||
if err != nil {
|
||||
// Create a more helpful error message.
|
||||
p.parseError(fmt.Sprintf("expected integer as timestamp, got %q", p.currentToken.String()))
|
||||
return nil
|
||||
}
|
||||
p.currentMetric.TimestampMs = proto.Int64(timestamp)
|
||||
if p.readTokenUntilNewline(false); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
if p.currentToken.Len() > 0 {
|
||||
p.parseError(fmt.Sprintf("spurious string after timestamp: %q", p.currentToken.String()))
|
||||
return nil
|
||||
}
|
||||
return p.startOfLine
|
||||
}
|
||||
|
||||
// readingHelp represents the state where the last byte read (now in
|
||||
// p.currentByte) is the first byte of the docstring after 'HELP'.
|
||||
func (p *TextParser) readingHelp() stateFn {
|
||||
if p.currentMF.Help != nil {
|
||||
p.parseError(fmt.Sprintf("second HELP line for metric name %q", p.currentMF.GetName()))
|
||||
return nil
|
||||
}
|
||||
// Rest of line is the docstring.
|
||||
if p.readTokenUntilNewline(true); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
p.currentMF.Help = proto.String(p.currentToken.String())
|
||||
return p.startOfLine
|
||||
}
|
||||
|
||||
// readingType represents the state where the last byte read (now in
|
||||
// p.currentByte) is the first byte of the type hint after 'HELP'.
|
||||
func (p *TextParser) readingType() stateFn {
|
||||
if p.currentMF.Type != nil {
|
||||
p.parseError(fmt.Sprintf("second TYPE line for metric name %q, or TYPE reported after samples", p.currentMF.GetName()))
|
||||
return nil
|
||||
}
|
||||
// Rest of line is the type.
|
||||
if p.readTokenUntilNewline(false); p.err != nil {
|
||||
return nil // Unexpected end of input.
|
||||
}
|
||||
metricType, ok := dto.MetricType_value[strings.ToUpper(p.currentToken.String())]
|
||||
if !ok {
|
||||
p.parseError(fmt.Sprintf("unknown metric type %q", p.currentToken.String()))
|
||||
return nil
|
||||
}
|
||||
p.currentMF.Type = dto.MetricType(metricType).Enum()
|
||||
return p.startOfLine
|
||||
}
|
||||
|
||||
// parseError sets p.err to a ParseError at the current line with the given
|
||||
// message.
|
||||
func (p *TextParser) parseError(msg string) {
|
||||
p.err = ParseError{
|
||||
Line: p.lineCount,
|
||||
Msg: msg,
|
||||
}
|
||||
}
|
||||
|
||||
// skipBlankTab reads (and discards) bytes from p.buf until it encounters a byte
|
||||
// that is neither ' ' nor '\t'. That byte is left in p.currentByte.
|
||||
func (p *TextParser) skipBlankTab() {
|
||||
for {
|
||||
if p.currentByte, p.err = p.buf.ReadByte(); p.err != nil || !isBlankOrTab(p.currentByte) {
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// skipBlankTabIfCurrentBlankTab works exactly as skipBlankTab but doesn't do
|
||||
// anything if p.currentByte is neither ' ' nor '\t'.
|
||||
func (p *TextParser) skipBlankTabIfCurrentBlankTab() {
|
||||
if isBlankOrTab(p.currentByte) {
|
||||
p.skipBlankTab()
|
||||
}
|
||||
}
|
||||
|
||||
// readTokenUntilWhitespace copies bytes from p.buf into p.currentToken. The
|
||||
// first byte considered is the byte already read (now in p.currentByte). The
|
||||
// first whitespace byte encountered is still copied into p.currentByte, but not
|
||||
// into p.currentToken.
|
||||
func (p *TextParser) readTokenUntilWhitespace() {
|
||||
p.currentToken.Reset()
|
||||
for p.err == nil && !isBlankOrTab(p.currentByte) && p.currentByte != '\n' {
|
||||
p.currentToken.WriteByte(p.currentByte)
|
||||
p.currentByte, p.err = p.buf.ReadByte()
|
||||
}
|
||||
}
|
||||
|
||||
// readTokenUntilNewline copies bytes from p.buf into p.currentToken. The first
|
||||
// byte considered is the byte already read (now in p.currentByte). The first
|
||||
// newline byte encountered is still copied into p.currentByte, but not into
|
||||
// p.currentToken. If recognizeEscapeSequence is true, two escape sequences are
|
||||
// recognized: '\\' translates into '\', and '\n' into a line-feed character.
|
||||
// All other escape sequences are invalid and cause an error.
|
||||
func (p *TextParser) readTokenUntilNewline(recognizeEscapeSequence bool) {
|
||||
p.currentToken.Reset()
|
||||
escaped := false
|
||||
for p.err == nil {
|
||||
if recognizeEscapeSequence && escaped {
|
||||
switch p.currentByte {
|
||||
case '\\':
|
||||
p.currentToken.WriteByte(p.currentByte)
|
||||
case 'n':
|
||||
p.currentToken.WriteByte('\n')
|
||||
default:
|
||||
p.parseError(fmt.Sprintf("invalid escape sequence '\\%c'", p.currentByte))
|
||||
return
|
||||
}
|
||||
escaped = false
|
||||
} else {
|
||||
switch p.currentByte {
|
||||
case '\n':
|
||||
return
|
||||
case '\\':
|
||||
escaped = true
|
||||
default:
|
||||
p.currentToken.WriteByte(p.currentByte)
|
||||
}
|
||||
}
|
||||
p.currentByte, p.err = p.buf.ReadByte()
|
||||
}
|
||||
}
|
||||
|
||||
// readTokenAsMetricName copies a metric name from p.buf into p.currentToken.
|
||||
// The first byte considered is the byte already read (now in p.currentByte).
|
||||
// The first byte not part of a metric name is still copied into p.currentByte,
|
||||
// but not into p.currentToken.
|
||||
func (p *TextParser) readTokenAsMetricName() {
|
||||
p.currentToken.Reset()
|
||||
if !isValidMetricNameStart(p.currentByte) {
|
||||
return
|
||||
}
|
||||
for {
|
||||
p.currentToken.WriteByte(p.currentByte)
|
||||
p.currentByte, p.err = p.buf.ReadByte()
|
||||
if p.err != nil || !isValidMetricNameContinuation(p.currentByte) {
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// readTokenAsLabelName copies a label name from p.buf into p.currentToken.
|
||||
// The first byte considered is the byte already read (now in p.currentByte).
|
||||
// The first byte not part of a label name is still copied into p.currentByte,
|
||||
// but not into p.currentToken.
|
||||
func (p *TextParser) readTokenAsLabelName() {
|
||||
p.currentToken.Reset()
|
||||
if !isValidLabelNameStart(p.currentByte) {
|
||||
return
|
||||
}
|
||||
for {
|
||||
p.currentToken.WriteByte(p.currentByte)
|
||||
p.currentByte, p.err = p.buf.ReadByte()
|
||||
if p.err != nil || !isValidLabelNameContinuation(p.currentByte) {
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// readTokenAsLabelValue copies a label value from p.buf into p.currentToken.
|
||||
// In contrast to the other 'readTokenAs...' functions, which start with the
|
||||
// last read byte in p.currentByte, this method ignores p.currentByte and starts
|
||||
// with reading a new byte from p.buf. The first byte not part of a label value
|
||||
// is still copied into p.currentByte, but not into p.currentToken.
|
||||
func (p *TextParser) readTokenAsLabelValue() {
|
||||
p.currentToken.Reset()
|
||||
escaped := false
|
||||
for {
|
||||
if p.currentByte, p.err = p.buf.ReadByte(); p.err != nil {
|
||||
return
|
||||
}
|
||||
if escaped {
|
||||
switch p.currentByte {
|
||||
case '"', '\\':
|
||||
p.currentToken.WriteByte(p.currentByte)
|
||||
case 'n':
|
||||
p.currentToken.WriteByte('\n')
|
||||
default:
|
||||
p.parseError(fmt.Sprintf("invalid escape sequence '\\%c'", p.currentByte))
|
||||
return
|
||||
}
|
||||
escaped = false
|
||||
continue
|
||||
}
|
||||
switch p.currentByte {
|
||||
case '"':
|
||||
return
|
||||
case '\n':
|
||||
p.parseError(fmt.Sprintf("label value %q contains unescaped new-line", p.currentToken.String()))
|
||||
return
|
||||
case '\\':
|
||||
escaped = true
|
||||
default:
|
||||
p.currentToken.WriteByte(p.currentByte)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (p *TextParser) setOrCreateCurrentMF() {
|
||||
p.currentIsSummaryCount = false
|
||||
p.currentIsSummarySum = false
|
||||
p.currentIsHistogramCount = false
|
||||
p.currentIsHistogramSum = false
|
||||
name := p.currentToken.String()
|
||||
if p.currentMF = p.metricFamiliesByName[name]; p.currentMF != nil {
|
||||
return
|
||||
}
|
||||
// Try out if this is a _sum or _count for a summary/histogram.
|
||||
summaryName := summaryMetricName(name)
|
||||
if p.currentMF = p.metricFamiliesByName[summaryName]; p.currentMF != nil {
|
||||
if p.currentMF.GetType() == dto.MetricType_SUMMARY {
|
||||
if isCount(name) {
|
||||
p.currentIsSummaryCount = true
|
||||
}
|
||||
if isSum(name) {
|
||||
p.currentIsSummarySum = true
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
histogramName := histogramMetricName(name)
|
||||
if p.currentMF = p.metricFamiliesByName[histogramName]; p.currentMF != nil {
|
||||
if p.currentMF.GetType() == dto.MetricType_HISTOGRAM {
|
||||
if isCount(name) {
|
||||
p.currentIsHistogramCount = true
|
||||
}
|
||||
if isSum(name) {
|
||||
p.currentIsHistogramSum = true
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
p.currentMF = &dto.MetricFamily{Name: proto.String(name)}
|
||||
p.metricFamiliesByName[name] = p.currentMF
|
||||
}
|
||||
|
||||
func isValidLabelNameStart(b byte) bool {
|
||||
return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_'
|
||||
}
|
||||
|
||||
func isValidLabelNameContinuation(b byte) bool {
|
||||
return isValidLabelNameStart(b) || (b >= '0' && b <= '9')
|
||||
}
|
||||
|
||||
func isValidMetricNameStart(b byte) bool {
|
||||
return isValidLabelNameStart(b) || b == ':'
|
||||
}
|
||||
|
||||
func isValidMetricNameContinuation(b byte) bool {
|
||||
return isValidLabelNameContinuation(b) || b == ':'
|
||||
}
|
||||
|
||||
func isBlankOrTab(b byte) bool {
|
||||
return b == ' ' || b == '\t'
|
||||
}
|
||||
|
||||
func isCount(name string) bool {
|
||||
return len(name) > 6 && name[len(name)-6:] == "_count"
|
||||
}
|
||||
|
||||
func isSum(name string) bool {
|
||||
return len(name) > 4 && name[len(name)-4:] == "_sum"
|
||||
}
|
||||
|
||||
func isBucket(name string) bool {
|
||||
return len(name) > 7 && name[len(name)-7:] == "_bucket"
|
||||
}
|
||||
|
||||
func summaryMetricName(name string) string {
|
||||
switch {
|
||||
case isCount(name):
|
||||
return name[:len(name)-6]
|
||||
case isSum(name):
|
||||
return name[:len(name)-4]
|
||||
default:
|
||||
return name
|
||||
}
|
||||
}
|
||||
|
||||
func histogramMetricName(name string) string {
|
||||
switch {
|
||||
case isCount(name):
|
||||
return name[:len(name)-6]
|
||||
case isSum(name):
|
||||
return name[:len(name)-4]
|
||||
case isBucket(name):
|
||||
return name[:len(name)-7]
|
||||
default:
|
||||
return name
|
||||
}
|
||||
}
|
||||
|
||||
func parseFloat(s string) (float64, error) {
|
||||
if strings.ContainsAny(s, "pP_") {
|
||||
return 0, fmt.Errorf("unsupported character in float")
|
||||
}
|
||||
return strconv.ParseFloat(s, 64)
|
||||
}
|
67
vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/README.txt
generated
vendored
Normal file
67
vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/README.txt
generated
vendored
Normal file
@ -0,0 +1,67 @@
|
||||
PACKAGE
|
||||
|
||||
package goautoneg
|
||||
import "bitbucket.org/ww/goautoneg"
|
||||
|
||||
HTTP Content-Type Autonegotiation.
|
||||
|
||||
The functions in this package implement the behaviour specified in
|
||||
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
|
||||
|
||||
Copyright (c) 2011, Open Knowledge Foundation Ltd.
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in
|
||||
the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
|
||||
Neither the name of the Open Knowledge Foundation Ltd. nor the
|
||||
names of its contributors may be used to endorse or promote
|
||||
products derived from this software without specific prior written
|
||||
permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|
||||
FUNCTIONS
|
||||
|
||||
func Negotiate(header string, alternatives []string) (content_type string)
|
||||
Negotiate the most appropriate content_type given the accept header
|
||||
and a list of alternatives.
|
||||
|
||||
func ParseAccept(header string) (accept []Accept)
|
||||
Parse an Accept Header string returning a sorted list
|
||||
of clauses
|
||||
|
||||
|
||||
TYPES
|
||||
|
||||
type Accept struct {
|
||||
Type, SubType string
|
||||
Q float32
|
||||
Params map[string]string
|
||||
}
|
||||
Structure to represent a clause in an HTTP Accept Header
|
||||
|
||||
|
||||
SUBDIRECTORIES
|
||||
|
||||
.hg
|
162
vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/autoneg.go
generated
vendored
Normal file
162
vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/autoneg.go
generated
vendored
Normal file
@ -0,0 +1,162 @@
|
||||
/*
|
||||
Copyright (c) 2011, Open Knowledge Foundation Ltd.
|
||||
All rights reserved.
|
||||
|
||||
HTTP Content-Type Autonegotiation.
|
||||
|
||||
The functions in this package implement the behaviour specified in
|
||||
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in
|
||||
the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
|
||||
Neither the name of the Open Knowledge Foundation Ltd. nor the
|
||||
names of its contributors may be used to endorse or promote
|
||||
products derived from this software without specific prior written
|
||||
permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|
||||
*/
|
||||
package goautoneg
|
||||
|
||||
import (
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Structure to represent a clause in an HTTP Accept Header
|
||||
type Accept struct {
|
||||
Type, SubType string
|
||||
Q float64
|
||||
Params map[string]string
|
||||
}
|
||||
|
||||
// For internal use, so that we can use the sort interface
|
||||
type accept_slice []Accept
|
||||
|
||||
func (accept accept_slice) Len() int {
|
||||
slice := []Accept(accept)
|
||||
return len(slice)
|
||||
}
|
||||
|
||||
func (accept accept_slice) Less(i, j int) bool {
|
||||
slice := []Accept(accept)
|
||||
ai, aj := slice[i], slice[j]
|
||||
if ai.Q > aj.Q {
|
||||
return true
|
||||
}
|
||||
if ai.Type != "*" && aj.Type == "*" {
|
||||
return true
|
||||
}
|
||||
if ai.SubType != "*" && aj.SubType == "*" {
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (accept accept_slice) Swap(i, j int) {
|
||||
slice := []Accept(accept)
|
||||
slice[i], slice[j] = slice[j], slice[i]
|
||||
}
|
||||
|
||||
// Parse an Accept Header string returning a sorted list
|
||||
// of clauses
|
||||
func ParseAccept(header string) (accept []Accept) {
|
||||
parts := strings.Split(header, ",")
|
||||
accept = make([]Accept, 0, len(parts))
|
||||
for _, part := range parts {
|
||||
part := strings.Trim(part, " ")
|
||||
|
||||
a := Accept{}
|
||||
a.Params = make(map[string]string)
|
||||
a.Q = 1.0
|
||||
|
||||
mrp := strings.Split(part, ";")
|
||||
|
||||
media_range := mrp[0]
|
||||
sp := strings.Split(media_range, "/")
|
||||
a.Type = strings.Trim(sp[0], " ")
|
||||
|
||||
switch {
|
||||
case len(sp) == 1 && a.Type == "*":
|
||||
a.SubType = "*"
|
||||
case len(sp) == 2:
|
||||
a.SubType = strings.Trim(sp[1], " ")
|
||||
default:
|
||||
continue
|
||||
}
|
||||
|
||||
if len(mrp) == 1 {
|
||||
accept = append(accept, a)
|
||||
continue
|
||||
}
|
||||
|
||||
for _, param := range mrp[1:] {
|
||||
sp := strings.SplitN(param, "=", 2)
|
||||
if len(sp) != 2 {
|
||||
continue
|
||||
}
|
||||
token := strings.Trim(sp[0], " ")
|
||||
if token == "q" {
|
||||
a.Q, _ = strconv.ParseFloat(sp[1], 32)
|
||||
} else {
|
||||
a.Params[token] = strings.Trim(sp[1], " ")
|
||||
}
|
||||
}
|
||||
|
||||
accept = append(accept, a)
|
||||
}
|
||||
|
||||
slice := accept_slice(accept)
|
||||
sort.Sort(slice)
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
// Negotiate the most appropriate content_type given the accept header
|
||||
// and a list of alternatives.
|
||||
func Negotiate(header string, alternatives []string) (content_type string) {
|
||||
asp := make([][]string, 0, len(alternatives))
|
||||
for _, ctype := range alternatives {
|
||||
asp = append(asp, strings.SplitN(ctype, "/", 2))
|
||||
}
|
||||
for _, clause := range ParseAccept(header) {
|
||||
for i, ctsp := range asp {
|
||||
if clause.Type == ctsp[0] && clause.SubType == ctsp[1] {
|
||||
content_type = alternatives[i]
|
||||
return
|
||||
}
|
||||
if clause.Type == ctsp[0] && clause.SubType == "*" {
|
||||
content_type = alternatives[i]
|
||||
return
|
||||
}
|
||||
if clause.Type == "*" && clause.SubType == "*" {
|
||||
content_type = alternatives[i]
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
136
vendor/github.com/prometheus/common/model/alert.go
generated
vendored
Normal file
136
vendor/github.com/prometheus/common/model/alert.go
generated
vendored
Normal file
@ -0,0 +1,136 @@
|
||||
// Copyright 2013 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package model
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"time"
|
||||
)
|
||||
|
||||
type AlertStatus string
|
||||
|
||||
const (
|
||||
AlertFiring AlertStatus = "firing"
|
||||
AlertResolved AlertStatus = "resolved"
|
||||
)
|
||||
|
||||
// Alert is a generic representation of an alert in the Prometheus eco-system.
|
||||
type Alert struct {
|
||||
// Label value pairs for purpose of aggregation, matching, and disposition
|
||||
// dispatching. This must minimally include an "alertname" label.
|
||||
Labels LabelSet `json:"labels"`
|
||||
|
||||
// Extra key/value information which does not define alert identity.
|
||||
Annotations LabelSet `json:"annotations"`
|
||||
|
||||
// The known time range for this alert. Both ends are optional.
|
||||
StartsAt time.Time `json:"startsAt,omitempty"`
|
||||
EndsAt time.Time `json:"endsAt,omitempty"`
|
||||
GeneratorURL string `json:"generatorURL"`
|
||||
}
|
||||
|
||||
// Name returns the name of the alert. It is equivalent to the "alertname" label.
|
||||
func (a *Alert) Name() string {
|
||||
return string(a.Labels[AlertNameLabel])
|
||||
}
|
||||
|
||||
// Fingerprint returns a unique hash for the alert. It is equivalent to
|
||||
// the fingerprint of the alert's label set.
|
||||
func (a *Alert) Fingerprint() Fingerprint {
|
||||
return a.Labels.Fingerprint()
|
||||
}
|
||||
|
||||
func (a *Alert) String() string {
|
||||
s := fmt.Sprintf("%s[%s]", a.Name(), a.Fingerprint().String()[:7])
|
||||
if a.Resolved() {
|
||||
return s + "[resolved]"
|
||||
}
|
||||
return s + "[active]"
|
||||
}
|
||||
|
||||
// Resolved returns true iff the activity interval ended in the past.
|
||||
func (a *Alert) Resolved() bool {
|
||||
return a.ResolvedAt(time.Now())
|
||||
}
|
||||
|
||||
// ResolvedAt returns true off the activity interval ended before
|
||||
// the given timestamp.
|
||||
func (a *Alert) ResolvedAt(ts time.Time) bool {
|
||||
if a.EndsAt.IsZero() {
|
||||
return false
|
||||
}
|
||||
return !a.EndsAt.After(ts)
|
||||
}
|
||||
|
||||
// Status returns the status of the alert.
|
||||
func (a *Alert) Status() AlertStatus {
|
||||
if a.Resolved() {
|
||||
return AlertResolved
|
||||
}
|
||||
return AlertFiring
|
||||
}
|
||||
|
||||
// Validate checks whether the alert data is inconsistent.
|
||||
func (a *Alert) Validate() error {
|
||||
if a.StartsAt.IsZero() {
|
||||
return fmt.Errorf("start time missing")
|
||||
}
|
||||
if !a.EndsAt.IsZero() && a.EndsAt.Before(a.StartsAt) {
|
||||
return fmt.Errorf("start time must be before end time")
|
||||
}
|
||||
if err := a.Labels.Validate(); err != nil {
|
||||
return fmt.Errorf("invalid label set: %s", err)
|
||||
}
|
||||
if len(a.Labels) == 0 {
|
||||
return fmt.Errorf("at least one label pair required")
|
||||
}
|
||||
if err := a.Annotations.Validate(); err != nil {
|
||||
return fmt.Errorf("invalid annotations: %s", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Alert is a list of alerts that can be sorted in chronological order.
|
||||
type Alerts []*Alert
|
||||
|
||||
func (as Alerts) Len() int { return len(as) }
|
||||
func (as Alerts) Swap(i, j int) { as[i], as[j] = as[j], as[i] }
|
||||
|
||||
func (as Alerts) Less(i, j int) bool {
|
||||
if as[i].StartsAt.Before(as[j].StartsAt) {
|
||||
return true
|
||||
}
|
||||
if as[i].EndsAt.Before(as[j].EndsAt) {
|
||||
return true
|
||||
}
|
||||
return as[i].Fingerprint() < as[j].Fingerprint()
|
||||
}
|
||||
|
||||
// HasFiring returns true iff one of the alerts is not resolved.
|
||||
func (as Alerts) HasFiring() bool {
|
||||
for _, a := range as {
|
||||
if !a.Resolved() {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Status returns StatusFiring iff at least one of the alerts is firing.
|
||||
func (as Alerts) Status() AlertStatus {
|
||||
if as.HasFiring() {
|
||||
return AlertFiring
|
||||
}
|
||||
return AlertResolved
|
||||
}
|
105
vendor/github.com/prometheus/common/model/fingerprinting.go
generated
vendored
Normal file
105
vendor/github.com/prometheus/common/model/fingerprinting.go
generated
vendored
Normal file
@ -0,0 +1,105 @@
|
||||
// Copyright 2013 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package model
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
// Fingerprint provides a hash-capable representation of a Metric.
|
||||
// For our purposes, FNV-1A 64-bit is used.
|
||||
type Fingerprint uint64
|
||||
|
||||
// FingerprintFromString transforms a string representation into a Fingerprint.
|
||||
func FingerprintFromString(s string) (Fingerprint, error) {
|
||||
num, err := strconv.ParseUint(s, 16, 64)
|
||||
return Fingerprint(num), err
|
||||
}
|
||||
|
||||
// ParseFingerprint parses the input string into a fingerprint.
|
||||
func ParseFingerprint(s string) (Fingerprint, error) {
|
||||
num, err := strconv.ParseUint(s, 16, 64)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return Fingerprint(num), nil
|
||||
}
|
||||
|
||||
func (f Fingerprint) String() string {
|
||||
return fmt.Sprintf("%016x", uint64(f))
|
||||
}
|
||||
|
||||
// Fingerprints represents a collection of Fingerprint subject to a given
|
||||
// natural sorting scheme. It implements sort.Interface.
|
||||
type Fingerprints []Fingerprint
|
||||
|
||||
// Len implements sort.Interface.
|
||||
func (f Fingerprints) Len() int {
|
||||
return len(f)
|
||||
}
|
||||
|
||||
// Less implements sort.Interface.
|
||||
func (f Fingerprints) Less(i, j int) bool {
|
||||
return f[i] < f[j]
|
||||
}
|
||||
|
||||
// Swap implements sort.Interface.
|
||||
func (f Fingerprints) Swap(i, j int) {
|
||||
f[i], f[j] = f[j], f[i]
|
||||
}
|
||||
|
||||
// FingerprintSet is a set of Fingerprints.
|
||||
type FingerprintSet map[Fingerprint]struct{}
|
||||
|
||||
// Equal returns true if both sets contain the same elements (and not more).
|
||||
func (s FingerprintSet) Equal(o FingerprintSet) bool {
|
||||
if len(s) != len(o) {
|
||||
return false
|
||||
}
|
||||
|
||||
for k := range s {
|
||||
if _, ok := o[k]; !ok {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
// Intersection returns the elements contained in both sets.
|
||||
func (s FingerprintSet) Intersection(o FingerprintSet) FingerprintSet {
|
||||
myLength, otherLength := len(s), len(o)
|
||||
if myLength == 0 || otherLength == 0 {
|
||||
return FingerprintSet{}
|
||||
}
|
||||
|
||||
subSet := s
|
||||
superSet := o
|
||||
|
||||
if otherLength < myLength {
|
||||
subSet = o
|
||||
superSet = s
|
||||
}
|
||||
|
||||
out := FingerprintSet{}
|
||||
|
||||
for k := range subSet {
|
||||
if _, ok := superSet[k]; ok {
|
||||
out[k] = struct{}{}
|
||||
}
|
||||
}
|
||||
|
||||
return out
|
||||
}
|
42
vendor/github.com/prometheus/common/model/fnv.go
generated
vendored
Normal file
42
vendor/github.com/prometheus/common/model/fnv.go
generated
vendored
Normal file
@ -0,0 +1,42 @@
|
||||
// Copyright 2015 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package model
|
||||
|
||||
// Inline and byte-free variant of hash/fnv's fnv64a.
|
||||
|
||||
const (
|
||||
offset64 = 14695981039346656037
|
||||
prime64 = 1099511628211
|
||||
)
|
||||
|
||||
// hashNew initializes a new fnv64a hash value.
|
||||
func hashNew() uint64 {
|
||||
return offset64
|
||||
}
|
||||
|
||||
// hashAdd adds a string to a fnv64a hash value, returning the updated hash.
|
||||
func hashAdd(h uint64, s string) uint64 {
|
||||
for i := 0; i < len(s); i++ {
|
||||
h ^= uint64(s[i])
|
||||
h *= prime64
|
||||
}
|
||||
return h
|
||||
}
|
||||
|
||||
// hashAddByte adds a byte to a fnv64a hash value, returning the updated hash.
|
||||
func hashAddByte(h uint64, b byte) uint64 {
|
||||
h ^= uint64(b)
|
||||
h *= prime64
|
||||
return h
|
||||
}
|
210
vendor/github.com/prometheus/common/model/labels.go
generated
vendored
Normal file
210
vendor/github.com/prometheus/common/model/labels.go
generated
vendored
Normal file
@ -0,0 +1,210 @@
|
||||
// Copyright 2013 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package model
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"regexp"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
const (
|
||||
// AlertNameLabel is the name of the label containing the an alert's name.
|
||||
AlertNameLabel = "alertname"
|
||||
|
||||
// ExportedLabelPrefix is the prefix to prepend to the label names present in
|
||||
// exported metrics if a label of the same name is added by the server.
|
||||
ExportedLabelPrefix = "exported_"
|
||||
|
||||
// MetricNameLabel is the label name indicating the metric name of a
|
||||
// timeseries.
|
||||
MetricNameLabel = "__name__"
|
||||
|
||||
// SchemeLabel is the name of the label that holds the scheme on which to
|
||||
// scrape a target.
|
||||
SchemeLabel = "__scheme__"
|
||||
|
||||
// AddressLabel is the name of the label that holds the address of
|
||||
// a scrape target.
|
||||
AddressLabel = "__address__"
|
||||
|
||||
// MetricsPathLabel is the name of the label that holds the path on which to
|
||||
// scrape a target.
|
||||
MetricsPathLabel = "__metrics_path__"
|
||||
|
||||
// ReservedLabelPrefix is a prefix which is not legal in user-supplied
|
||||
// label names.
|
||||
ReservedLabelPrefix = "__"
|
||||
|
||||
// MetaLabelPrefix is a prefix for labels that provide meta information.
|
||||
// Labels with this prefix are used for intermediate label processing and
|
||||
// will not be attached to time series.
|
||||
MetaLabelPrefix = "__meta_"
|
||||
|
||||
// TmpLabelPrefix is a prefix for temporary labels as part of relabelling.
|
||||
// Labels with this prefix are used for intermediate label processing and
|
||||
// will not be attached to time series. This is reserved for use in
|
||||
// Prometheus configuration files by users.
|
||||
TmpLabelPrefix = "__tmp_"
|
||||
|
||||
// ParamLabelPrefix is a prefix for labels that provide URL parameters
|
||||
// used to scrape a target.
|
||||
ParamLabelPrefix = "__param_"
|
||||
|
||||
// JobLabel is the label name indicating the job from which a timeseries
|
||||
// was scraped.
|
||||
JobLabel = "job"
|
||||
|
||||
// InstanceLabel is the label name used for the instance label.
|
||||
InstanceLabel = "instance"
|
||||
|
||||
// BucketLabel is used for the label that defines the upper bound of a
|
||||
// bucket of a histogram ("le" -> "less or equal").
|
||||
BucketLabel = "le"
|
||||
|
||||
// QuantileLabel is used for the label that defines the quantile in a
|
||||
// summary.
|
||||
QuantileLabel = "quantile"
|
||||
)
|
||||
|
||||
// LabelNameRE is a regular expression matching valid label names. Note that the
|
||||
// IsValid method of LabelName performs the same check but faster than a match
|
||||
// with this regular expression.
|
||||
var LabelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$")
|
||||
|
||||
// A LabelName is a key for a LabelSet or Metric. It has a value associated
|
||||
// therewith.
|
||||
type LabelName string
|
||||
|
||||
// IsValid is true iff the label name matches the pattern of LabelNameRE. This
|
||||
// method, however, does not use LabelNameRE for the check but a much faster
|
||||
// hardcoded implementation.
|
||||
func (ln LabelName) IsValid() bool {
|
||||
if len(ln) == 0 {
|
||||
return false
|
||||
}
|
||||
for i, b := range ln {
|
||||
if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || (b >= '0' && b <= '9' && i > 0)) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// UnmarshalYAML implements the yaml.Unmarshaler interface.
|
||||
func (ln *LabelName) UnmarshalYAML(unmarshal func(interface{}) error) error {
|
||||
var s string
|
||||
if err := unmarshal(&s); err != nil {
|
||||
return err
|
||||
}
|
||||
if !LabelName(s).IsValid() {
|
||||
return fmt.Errorf("%q is not a valid label name", s)
|
||||
}
|
||||
*ln = LabelName(s)
|
||||
return nil
|
||||
}
|
||||
|
||||
// UnmarshalJSON implements the json.Unmarshaler interface.
|
||||
func (ln *LabelName) UnmarshalJSON(b []byte) error {
|
||||
var s string
|
||||
if err := json.Unmarshal(b, &s); err != nil {
|
||||
return err
|
||||
}
|
||||
if !LabelName(s).IsValid() {
|
||||
return fmt.Errorf("%q is not a valid label name", s)
|
||||
}
|
||||
*ln = LabelName(s)
|
||||
return nil
|
||||
}
|
||||
|
||||
// LabelNames is a sortable LabelName slice. In implements sort.Interface.
|
||||
type LabelNames []LabelName
|
||||
|
||||
func (l LabelNames) Len() int {
|
||||
return len(l)
|
||||
}
|
||||
|
||||
func (l LabelNames) Less(i, j int) bool {
|
||||
return l[i] < l[j]
|
||||
}
|
||||
|
||||
func (l LabelNames) Swap(i, j int) {
|
||||
l[i], l[j] = l[j], l[i]
|
||||
}
|
||||
|
||||
func (l LabelNames) String() string {
|
||||
labelStrings := make([]string, 0, len(l))
|
||||
for _, label := range l {
|
||||
labelStrings = append(labelStrings, string(label))
|
||||
}
|
||||
return strings.Join(labelStrings, ", ")
|
||||
}
|
||||
|
||||
// A LabelValue is an associated value for a LabelName.
|
||||
type LabelValue string
|
||||
|
||||
// IsValid returns true iff the string is a valid UTF8.
|
||||
func (lv LabelValue) IsValid() bool {
|
||||
return utf8.ValidString(string(lv))
|
||||
}
|
||||
|
||||
// LabelValues is a sortable LabelValue slice. It implements sort.Interface.
|
||||
type LabelValues []LabelValue
|
||||
|
||||
func (l LabelValues) Len() int {
|
||||
return len(l)
|
||||
}
|
||||
|
||||
func (l LabelValues) Less(i, j int) bool {
|
||||
return string(l[i]) < string(l[j])
|
||||
}
|
||||
|
||||
func (l LabelValues) Swap(i, j int) {
|
||||
l[i], l[j] = l[j], l[i]
|
||||
}
|
||||
|
||||
// LabelPair pairs a name with a value.
|
||||
type LabelPair struct {
|
||||
Name LabelName
|
||||
Value LabelValue
|
||||
}
|
||||
|
||||
// LabelPairs is a sortable slice of LabelPair pointers. It implements
|
||||
// sort.Interface.
|
||||
type LabelPairs []*LabelPair
|
||||
|
||||
func (l LabelPairs) Len() int {
|
||||
return len(l)
|
||||
}
|
||||
|
||||
func (l LabelPairs) Less(i, j int) bool {
|
||||
switch {
|
||||
case l[i].Name > l[j].Name:
|
||||
return false
|
||||
case l[i].Name < l[j].Name:
|
||||
return true
|
||||
case l[i].Value > l[j].Value:
|
||||
return false
|
||||
case l[i].Value < l[j].Value:
|
||||
return true
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
func (l LabelPairs) Swap(i, j int) {
|
||||
l[i], l[j] = l[j], l[i]
|
||||
}
|
169
vendor/github.com/prometheus/common/model/labelset.go
generated
vendored
Normal file
169
vendor/github.com/prometheus/common/model/labelset.go
generated
vendored
Normal file
@ -0,0 +1,169 @@
|
||||
// Copyright 2013 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package model
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"sort"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// A LabelSet is a collection of LabelName and LabelValue pairs. The LabelSet
|
||||
// may be fully-qualified down to the point where it may resolve to a single
|
||||
// Metric in the data store or not. All operations that occur within the realm
|
||||
// of a LabelSet can emit a vector of Metric entities to which the LabelSet may
|
||||
// match.
|
||||
type LabelSet map[LabelName]LabelValue
|
||||
|
||||
// Validate checks whether all names and values in the label set
|
||||
// are valid.
|
||||
func (ls LabelSet) Validate() error {
|
||||
for ln, lv := range ls {
|
||||
if !ln.IsValid() {
|
||||
return fmt.Errorf("invalid name %q", ln)
|
||||
}
|
||||
if !lv.IsValid() {
|
||||
return fmt.Errorf("invalid value %q", lv)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Equal returns true iff both label sets have exactly the same key/value pairs.
|
||||
func (ls LabelSet) Equal(o LabelSet) bool {
|
||||
if len(ls) != len(o) {
|
||||
return false
|
||||
}
|
||||
for ln, lv := range ls {
|
||||
olv, ok := o[ln]
|
||||
if !ok {
|
||||
return false
|
||||
}
|
||||
if olv != lv {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Before compares the metrics, using the following criteria:
|
||||
//
|
||||
// If m has fewer labels than o, it is before o. If it has more, it is not.
|
||||
//
|
||||
// If the number of labels is the same, the superset of all label names is
|
||||
// sorted alphanumerically. The first differing label pair found in that order
|
||||
// determines the outcome: If the label does not exist at all in m, then m is
|
||||
// before o, and vice versa. Otherwise the label value is compared
|
||||
// alphanumerically.
|
||||
//
|
||||
// If m and o are equal, the method returns false.
|
||||
func (ls LabelSet) Before(o LabelSet) bool {
|
||||
if len(ls) < len(o) {
|
||||
return true
|
||||
}
|
||||
if len(ls) > len(o) {
|
||||
return false
|
||||
}
|
||||
|
||||
lns := make(LabelNames, 0, len(ls)+len(o))
|
||||
for ln := range ls {
|
||||
lns = append(lns, ln)
|
||||
}
|
||||
for ln := range o {
|
||||
lns = append(lns, ln)
|
||||
}
|
||||
// It's probably not worth it to de-dup lns.
|
||||
sort.Sort(lns)
|
||||
for _, ln := range lns {
|
||||
mlv, ok := ls[ln]
|
||||
if !ok {
|
||||
return true
|
||||
}
|
||||
olv, ok := o[ln]
|
||||
if !ok {
|
||||
return false
|
||||
}
|
||||
if mlv < olv {
|
||||
return true
|
||||
}
|
||||
if mlv > olv {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Clone returns a copy of the label set.
|
||||
func (ls LabelSet) Clone() LabelSet {
|
||||
lsn := make(LabelSet, len(ls))
|
||||
for ln, lv := range ls {
|
||||
lsn[ln] = lv
|
||||
}
|
||||
return lsn
|
||||
}
|
||||
|
||||
// Merge is a helper function to non-destructively merge two label sets.
|
||||
func (l LabelSet) Merge(other LabelSet) LabelSet {
|
||||
result := make(LabelSet, len(l))
|
||||
|
||||
for k, v := range l {
|
||||
result[k] = v
|
||||
}
|
||||
|
||||
for k, v := range other {
|
||||
result[k] = v
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
func (l LabelSet) String() string {
|
||||
lstrs := make([]string, 0, len(l))
|
||||
for l, v := range l {
|
||||
lstrs = append(lstrs, fmt.Sprintf("%s=%q", l, v))
|
||||
}
|
||||
|
||||
sort.Strings(lstrs)
|
||||
return fmt.Sprintf("{%s}", strings.Join(lstrs, ", "))
|
||||
}
|
||||
|
||||
// Fingerprint returns the LabelSet's fingerprint.
|
||||
func (ls LabelSet) Fingerprint() Fingerprint {
|
||||
return labelSetToFingerprint(ls)
|
||||
}
|
||||
|
||||
// FastFingerprint returns the LabelSet's Fingerprint calculated by a faster hashing
|
||||
// algorithm, which is, however, more susceptible to hash collisions.
|
||||
func (ls LabelSet) FastFingerprint() Fingerprint {
|
||||
return labelSetToFastFingerprint(ls)
|
||||
}
|
||||
|
||||
// UnmarshalJSON implements the json.Unmarshaler interface.
|
||||
func (l *LabelSet) UnmarshalJSON(b []byte) error {
|
||||
var m map[LabelName]LabelValue
|
||||
if err := json.Unmarshal(b, &m); err != nil {
|
||||
return err
|
||||
}
|
||||
// encoding/json only unmarshals maps of the form map[string]T. It treats
|
||||
// LabelName as a string and does not call its UnmarshalJSON method.
|
||||
// Thus, we have to replicate the behavior here.
|
||||
for ln := range m {
|
||||
if !ln.IsValid() {
|
||||
return fmt.Errorf("%q is not a valid label name", ln)
|
||||
}
|
||||
}
|
||||
*l = LabelSet(m)
|
||||
return nil
|
||||
}
|
102
vendor/github.com/prometheus/common/model/metric.go
generated
vendored
Normal file
102
vendor/github.com/prometheus/common/model/metric.go
generated
vendored
Normal file
@ -0,0 +1,102 @@
|
||||
// Copyright 2013 The Prometheus Authors
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package model
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"regexp"
|
||||
"sort"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var (
|
||||
// MetricNameRE is a regular expression matching valid metric
|
||||
// names. Note that the IsValidMetricName function performs the same
|
||||
// check but faster than a match with this regular expression.
|
||||
MetricNameRE = regexp.MustCompile(`^[a-zA-Z_:][a-zA-Z0-9_:]*$`)
|
||||
)
|
||||
|
||||
// A Metric is similar to a LabelSet, but the key difference is that a Metric is
|
||||
// a singleton and refers to one and only one stream of samples.
|
||||
type Metric LabelSet
|
||||
|
||||
// Equal compares the metrics.
|
||||
func (m Metric) Equal(o Metric) bool {
|
||||
return LabelSet(m).Equal(LabelSet(o))
|
||||
}
|
||||
|
||||
// Before compares the metrics' underlying label sets.
|
||||
func (m Metric) Before(o Metric) bool {
|
||||
return LabelSet(m).Before(LabelSet(o))
|
||||
}
|
||||
|
||||
// Clone returns a copy of the Metric.
|
||||
func (m Metric) Clone() Metric {
|
||||
clone := make(Metric, len(m))
|
||||
for k, v := range m {
|
||||
clone[k] = v
|
||||
}
|
||||
return clone
|
||||
}
|
||||
|
||||
func (m Metric) String() string {
|
||||
metricName, hasName := m[MetricNameLabel]
|
||||
numLabels := len(m) - 1
|
||||
if !hasName {
|
||||
numLabels = len(m)
|
||||
}
|
||||
labelStrings := make([]string, 0, numLabels)
|
||||
for label, value := range m {
|
||||
if label != MetricNameLabel {
|
||||
labelStrings = append(labelStrings, fmt.Sprintf("%s=%q", label, value))
|
||||
}
|
||||
}
|
||||
|
||||
switch numLabels {
|
||||
case 0:
|
||||
if hasName {
|
||||
return string(metricName)
|
||||
}
|
||||
return "{}"
|
||||
default:
|
||||
sort.Strings(labelStrings)
|
||||
return fmt.Sprintf("%s{%s}", metricName, strings.Join(labelStrings, ", "))
|
||||
}
|
||||
}
|
||||
|
||||
// Fingerprint returns a Metric's Fingerprint.
|
||||
func (m Metric) Fingerprint() Fingerprint {
|
||||
return LabelSet(m).Fingerprint()
|
||||
}
|
||||
|
||||
// FastFingerprint returns a Metric's Fingerprint calculated by a faster hashing
|
||||
// algorithm, which is, however, more susceptible to hash collisions.
|
||||
func (m Metric) FastFingerprint() Fingerprint {
|
||||
return LabelSet(m).FastFingerprint()
|
||||
}
|
||||
|
||||
// IsValidMetricName returns true iff name matches the pattern of MetricNameRE.
|
||||
// This function, however, does not use MetricNameRE for the check but a much
|
||||
// faster hardcoded implementation.
|
||||
func IsValidMetricName(n LabelValue) bool {
|
||||
if len(n) == 0 {
|
||||
return false
|
||||
}
|
||||
for i, b := range n {
|
||||
if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || b == ':' || (b >= '0' && b <= '9' && i > 0)) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user