git.iko.soy/crush
on 175ce34 help sign in
crush/internal/server/socket_classify.go
27 lines 768 B history raw
1package server
3import (
4 "errors"
5 "io/fs"
6 "net"
7 "syscall"
8)
10// IsStaleSocketErr reports whether err indicates that a Unix-domain
11// socket file exists on disk but no process is listening on it (a stale
12// or orphaned socket). It returns false for nil and for timeout errors.
13//
14// The classification is cross-platform: ECONNREFUSED and fs.ErrNotExist
15// are defined on every supported OS, so callers on Windows can use the
16// same helper even though stale-socket recovery only applies to Unix
17// sockets in practice.
18func IsStaleSocketErr(err error) bool {
19 if err == nil {
20 return false
21 }
22 var netErr net.Error
23 if errors.As(err, &netErr) && netErr.Timeout() {
24 return false
25 }
26 return errors.Is(err, syscall.ECONNREFUSED) || errors.Is(err, fs.ErrNotExist)