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Extract a clock subcrate for logical clocks

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This commit is contained in:
Antonio Scandurra 2021-10-04 14:34:02 +02:00
parent 5b75fcd0aa
commit 034aed053c
15 changed files with 123 additions and 99 deletions
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9
Cargo.lock generated
View File

@ -998,6 +998,14 @@ dependencies = [
"syn",
]
[[package]]
name = "clock"
version = "0.1.0"
dependencies = [
"smallvec",
"zrpc",
]
[[package]]
name = "cloudabi"
version = "0.0.3"
@ -5909,6 +5917,7 @@ dependencies = [
"async-trait",
"async-tungstenite",
"cargo-bundle",
"clock",
"crossbeam-channel",
"ctor",
"dirs 3.0.1",

12
Cargo.toml
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@ -1,5 +1,15 @@
[workspace]
members = ["fsevent", "fuzzy", "gpui", "gpui_macros", "server", "sum_tree", "zed", "zrpc"]
members = [
"clock",
"fsevent",
"fuzzy",
"gpui",
"gpui_macros",
"server",
"sum_tree",
"zed",
"zrpc"
]
default-members = ["zed"]
[patch.crates-io]

8
clock/Cargo.toml Normal file
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@ -0,0 +1,8 @@
[package]
name = "clock"
version = "0.1.0"
edition = "2018"
[dependencies]
smallvec = { version = "1.6", features = ["union"] }
zrpc = { path = "../zrpc" }

0
zed/src/time.rs → clock/src/lib.rs
View File

3
zed/Cargo.toml
View File

@ -22,6 +22,7 @@ async-recursion = "0.3"
async-trait = "0.1"
arrayvec = "0.7.1"
async-tungstenite = { version = "0.14", features = ["async-tls"] }
clock = { path = "../clock" }
crossbeam-channel = "0.5.0"
ctor = "0.1.20"
dirs = "3.0"
@ -52,7 +53,7 @@ similar = "1.3"
simplelog = "0.9"
smallvec = { version = "1.6", features = ["union"] }
smol = "1.2.5"
sum_tree = { "path" = "../sum_tree" }
sum_tree = { path = "../sum_tree" }
surf = "2.2"
tempdir = { version = "0.3.7", optional = true }
thiserror = "1.0.29"

2
zed/src/editor.rs
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@ -8,13 +8,13 @@ use crate::{
project::ProjectPath,
settings::Settings,
theme::Theme,
time::ReplicaId,
util::{post_inc, Bias},
workspace,
worktree::Worktree,
};
use anyhow::Result;
pub use buffer::*;
use clock::ReplicaId;
pub use display_map::DisplayPoint;
use display_map::*;
pub use element::*;

148
zed/src/editor/buffer.rs
View File

@ -7,11 +7,11 @@ mod selection;
use crate::{
language::{Language, Tree},
settings::{HighlightId, HighlightMap},
time::{self, ReplicaId},
util::Bias,
};
pub use anchor::*;
use anyhow::{anyhow, Result};
use clock::ReplicaId;
use gpui::{AppContext, Entity, ModelContext, MutableAppContext, Task};
use lazy_static::lazy_static;
use operation_queue::OperationQueue;
@ -66,9 +66,9 @@ pub trait File {
&self,
buffer_id: u64,
text: Rope,
version: time::Global,
version: clock::Global,
cx: &mut MutableAppContext,
) -> Task<Result<(time::Global, SystemTime)>>;
) -> Task<Result<(clock::Global, SystemTime)>>;
fn buffer_updated(&self, buffer_id: u64, operation: Operation, cx: &mut MutableAppContext);
@ -150,10 +150,10 @@ pub struct Buffer {
fragments: SumTree<Fragment>,
visible_text: Rope,
deleted_text: Rope,
pub version: time::Global,
saved_version: time::Global,
pub version: clock::Global,
saved_version: clock::Global,
saved_mtime: SystemTime,
last_edit: time::Local,
last_edit: clock::Local,
undo_map: UndoMap,
history: History,
file: Option<Box<dyn File>>,
@ -167,8 +167,8 @@ pub struct Buffer {
deferred_replicas: HashSet<ReplicaId>,
replica_id: ReplicaId,
remote_id: u64,
local_clock: time::Local,
lamport_clock: time::Lamport,
local_clock: clock::Local,
lamport_clock: clock::Lamport,
#[cfg(test)]
operations: Vec<Operation>,
}
@ -183,15 +183,15 @@ pub struct SelectionSet {
struct SyntaxTree {
tree: Tree,
dirty: bool,
version: time::Global,
version: clock::Global,
}
#[derive(Clone, Debug)]
struct Transaction {
start: time::Global,
end: time::Global,
start: clock::Global,
end: clock::Global,
buffer_was_dirty: bool,
edits: Vec<time::Local>,
edits: Vec<clock::Local>,
ranges: Vec<Range<usize>>,
selections_before: Option<(SelectionSetId, Arc<[Selection]>)>,
selections_after: Option<(SelectionSetId, Arc<[Selection]>)>,
@ -251,7 +251,7 @@ impl Transaction {
pub struct History {
// TODO: Turn this into a String or Rope, maybe.
pub base_text: Arc<str>,
ops: HashMap<time::Local, EditOperation>,
ops: HashMap<clock::Local, EditOperation>,
undo_stack: Vec<Transaction>,
redo_stack: Vec<Transaction>,
transaction_depth: usize,
@ -276,7 +276,7 @@ impl History {
fn start_transaction(
&mut self,
start: time::Global,
start: clock::Global,
buffer_was_dirty: bool,
selections: Option<(SelectionSetId, Arc<[Selection]>)>,
now: Instant,
@ -349,7 +349,7 @@ impl History {
self.undo_stack.truncate(new_len);
}
fn push_undo(&mut self, edit_id: time::Local) {
fn push_undo(&mut self, edit_id: clock::Local) {
assert_ne!(self.transaction_depth, 0);
let last_transaction = self.undo_stack.last_mut().unwrap();
last_transaction.push_edit(&self.ops[&edit_id]);
@ -377,7 +377,7 @@ impl History {
}
#[derive(Clone, Default, Debug)]
struct UndoMap(HashMap<time::Local, Vec<(time::Local, u32)>>);
struct UndoMap(HashMap<clock::Local, Vec<(clock::Local, u32)>>);
impl UndoMap {
fn insert(&mut self, undo: &UndoOperation) {
@ -386,11 +386,11 @@ impl UndoMap {
}
}
fn is_undone(&self, edit_id: time::Local) -> bool {
fn is_undone(&self, edit_id: clock::Local) -> bool {
self.undo_count(edit_id) % 2 == 1
}
fn was_undone(&self, edit_id: time::Local, version: &time::Global) -> bool {
fn was_undone(&self, edit_id: clock::Local, version: &clock::Global) -> bool {
let undo_count = self
.0
.get(&edit_id)
@ -403,7 +403,7 @@ impl UndoMap {
undo_count % 2 == 1
}
fn undo_count(&self, edit_id: time::Local) -> u32 {
fn undo_count(&self, edit_id: clock::Local) -> u32 {
self.0
.get(&edit_id)
.unwrap_or(&Vec::new())
@ -419,7 +419,7 @@ struct Edits<'a, F: Fn(&FragmentSummary) -> bool> {
deleted_text: &'a Rope,
cursor: Option<FilterCursor<'a, F, Fragment, FragmentTextSummary>>,
undos: &'a UndoMap,
since: time::Global,
since: clock::Global,
old_offset: usize,
new_offset: usize,
old_point: Point,
@ -452,7 +452,7 @@ impl Edit {
}
struct Diff {
base_version: time::Global,
base_version: clock::Global,
new_text: Arc<str>,
changes: Vec<(ChangeTag, usize)>,
}
@ -460,20 +460,20 @@ struct Diff {
#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
struct InsertionTimestamp {
replica_id: ReplicaId,
local: time::Seq,
lamport: time::Seq,
local: clock::Seq,
lamport: clock::Seq,
}
impl InsertionTimestamp {
fn local(&self) -> time::Local {
time::Local {
fn local(&self) -> clock::Local {
clock::Local {
replica_id: self.replica_id,
value: self.local,
}
}
fn lamport(&self) -> time::Lamport {
time::Lamport {
fn lamport(&self) -> clock::Lamport {
clock::Lamport {
replica_id: self.replica_id,
value: self.lamport,
}
@ -485,16 +485,16 @@ struct Fragment {
timestamp: InsertionTimestamp,
len: usize,
visible: bool,
deletions: HashSet<time::Local>,
max_undos: time::Global,
deletions: HashSet<clock::Local>,
max_undos: clock::Global,
}
#[derive(Eq, PartialEq, Clone, Debug)]
pub struct FragmentSummary {
text: FragmentTextSummary,
max_version: time::Global,
min_insertion_version: time::Global,
max_insertion_version: time::Global,
max_version: clock::Global,
min_insertion_version: clock::Global,
max_insertion_version: clock::Global,
}
#[derive(Copy, Default, Clone, Debug, PartialEq, Eq)]
@ -504,7 +504,7 @@ struct FragmentTextSummary {
}
impl<'a> sum_tree::Dimension<'a, FragmentSummary> for FragmentTextSummary {
fn add_summary(&mut self, summary: &'a FragmentSummary, _: &Option<time::Global>) {
fn add_summary(&mut self, summary: &'a FragmentSummary, _: &Option<clock::Global>) {
self.visible += summary.text.visible;
self.deleted += summary.text.deleted;
}
@ -515,35 +515,35 @@ pub enum Operation {
Edit(EditOperation),
Undo {
undo: UndoOperation,
lamport_timestamp: time::Lamport,
lamport_timestamp: clock::Lamport,
},
UpdateSelections {
set_id: SelectionSetId,
selections: Option<Arc<[Selection]>>,
lamport_timestamp: time::Lamport,
lamport_timestamp: clock::Lamport,
},
SetActiveSelections {
set_id: Option<SelectionSetId>,
lamport_timestamp: time::Lamport,
lamport_timestamp: clock::Lamport,
},
#[cfg(test)]
Test(time::Lamport),
Test(clock::Lamport),
}
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct EditOperation {
timestamp: InsertionTimestamp,
version: time::Global,
version: clock::Global,
ranges: Vec<Range<usize>>,
new_text: Option<String>,
}
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct UndoOperation {
id: time::Local,
counts: HashMap<time::Local, u32>,
id: clock::Local,
counts: HashMap<clock::Local, u32>,
ranges: Vec<Range<usize>>,
version: time::Global,
version: clock::Global,
}
impl Buffer {
@ -614,9 +614,9 @@ impl Buffer {
visible_text,
deleted_text: Rope::new(),
fragments,
version: time::Global::new(),
saved_version: time::Global::new(),
last_edit: time::Local::default(),
version: clock::Global::new(),
saved_version: clock::Global::new(),
last_edit: clock::Local::default(),
undo_map: Default::default(),
history,
file,
@ -631,8 +631,8 @@ impl Buffer {
deferred_replicas: HashSet::default(),
replica_id,
remote_id,
local_clock: time::Local::new(replica_id),
lamport_clock: time::Lamport::new(replica_id),
local_clock: clock::Local::new(replica_id),
lamport_clock: clock::Lamport::new(replica_id),
#[cfg(test)]
operations: Default::default(),
@ -681,7 +681,7 @@ impl Buffer {
.selections
.into_iter()
.map(|set| {
let set_id = time::Lamport {
let set_id = clock::Lamport {
replica_id: set.replica_id as ReplicaId,
value: set.local_timestamp,
};
@ -730,7 +730,7 @@ impl Buffer {
pub fn save(
&mut self,
cx: &mut ModelContext<Self>,
) -> Result<Task<Result<(time::Global, SystemTime)>>> {
) -> Result<Task<Result<(clock::Global, SystemTime)>>> {
let file = self
.file
.as_ref()
@ -758,7 +758,7 @@ impl Buffer {
pub fn did_save(
&mut self,
version: time::Global,
version: clock::Global,
mtime: SystemTime,
new_file: Option<Box<dyn File>>,
cx: &mut ModelContext<Self>,
@ -1063,7 +1063,7 @@ impl Buffer {
self.remote_id
}
pub fn version(&self) -> time::Global {
pub fn version(&self) -> clock::Global {
self.version.clone()
}
@ -1106,7 +1106,7 @@ impl Buffer {
self.visible_text.chars_at(offset)
}
pub fn edits_since<'a>(&'a self, since: time::Global) -> impl 'a + Iterator<Item = Edit> {
pub fn edits_since<'a>(&'a self, since: clock::Global) -> impl 'a + Iterator<Item = Edit> {
let since_2 = since.clone();
let cursor = if since == self.version {
None
@ -1461,7 +1461,7 @@ impl Buffer {
fn apply_remote_edit(
&mut self,
version: &time::Global,
version: &clock::Global,
ranges: &[Range<usize>],
new_text: Option<&str>,
timestamp: InsertionTimestamp,
@ -1992,7 +1992,7 @@ impl Clone for Buffer {
pub struct Snapshot {
visible_text: Rope,
fragments: SumTree<Fragment>,
version: time::Global,
version: clock::Global,
tree: Option<Tree>,
is_parsing: bool,
language: Option<Arc<Language>>,
@ -2110,7 +2110,7 @@ impl Snapshot {
pub struct Content<'a> {
visible_text: &'a Rope,
fragments: &'a SumTree<Fragment>,
version: &'a time::Global,
version: &'a clock::Global,
}
impl<'a> From<&'a Snapshot> for Content<'a> {
@ -2489,7 +2489,7 @@ impl Fragment {
&& self.deletions.iter().all(|d| undos.is_undone(*d))
}
fn was_visible(&self, version: &time::Global, undos: &UndoMap) -> bool {
fn was_visible(&self, version: &clock::Global, undos: &UndoMap) -> bool {
(version.observed(self.timestamp.local())
&& !undos.was_undone(self.timestamp.local(), version))
&& self
@ -2503,14 +2503,14 @@ impl sum_tree::Item for Fragment {
type Summary = FragmentSummary;
fn summary(&self) -> Self::Summary {
let mut max_version = time::Global::new();
let mut max_version = clock::Global::new();
max_version.observe(self.timestamp.local());
for deletion in &self.deletions {
max_version.observe(*deletion);
}
max_version.join(&self.max_undos);
let mut min_insertion_version = time::Global::new();
let mut min_insertion_version = clock::Global::new();
min_insertion_version.observe(self.timestamp.local());
let max_insertion_version = min_insertion_version.clone();
if self.visible {
@ -2538,7 +2538,7 @@ impl sum_tree::Item for Fragment {
}
impl sum_tree::Summary for FragmentSummary {
type Context = Option<time::Global>;
type Context = Option<clock::Global>;
fn add_summary(&mut self, other: &Self, _: &Self::Context) {
self.text.visible += &other.text.visible;
@ -2555,15 +2555,15 @@ impl Default for FragmentSummary {
fn default() -> Self {
FragmentSummary {
text: FragmentTextSummary::default(),
max_version: time::Global::new(),
min_insertion_version: time::Global::new(),
max_insertion_version: time::Global::new(),
max_version: clock::Global::new(),
min_insertion_version: clock::Global::new(),
max_insertion_version: clock::Global::new(),
}
}
}
impl<'a> sum_tree::Dimension<'a, FragmentSummary> for usize {
fn add_summary(&mut self, summary: &FragmentSummary, _: &Option<time::Global>) {
fn add_summary(&mut self, summary: &FragmentSummary, _: &Option<clock::Global>) {
*self += summary.text.visible;
}
}
@ -2591,7 +2591,7 @@ impl Default for VersionedOffset {
}
impl<'a> sum_tree::Dimension<'a, FragmentSummary> for VersionedOffset {
fn add_summary(&mut self, summary: &'a FragmentSummary, cx: &Option<time::Global>) {
fn add_summary(&mut self, summary: &'a FragmentSummary, cx: &Option<clock::Global>) {
if let Self::Offset(offset) = self {
let version = cx.as_ref().unwrap();
if *version >= summary.max_insertion_version {
@ -2608,7 +2608,7 @@ impl<'a> sum_tree::Dimension<'a, FragmentSummary> for VersionedOffset {
}
impl<'a> sum_tree::SeekTarget<'a, FragmentSummary, Self> for VersionedOffset {
fn cmp(&self, other: &Self, _: &Option<time::Global>) -> cmp::Ordering {
fn cmp(&self, other: &Self, _: &Option<clock::Global>) -> cmp::Ordering {
match (self, other) {
(Self::Offset(a), Self::Offset(b)) => Ord::cmp(a, b),
(Self::Offset(_), Self::InvalidVersion) => cmp::Ordering::Less,
@ -2622,7 +2622,7 @@ impl Operation {
self.lamport_timestamp().replica_id
}
fn lamport_timestamp(&self) -> time::Lamport {
fn lamport_timestamp(&self) -> clock::Lamport {
match self {
Operation::Edit(edit) => edit.timestamp.lamport(),
Operation::Undo {
@ -2765,12 +2765,12 @@ impl TryFrom<proto::Operation> for Operation {
{
proto::operation::Variant::Edit(edit) => Operation::Edit(edit.into()),
proto::operation::Variant::Undo(undo) => Operation::Undo {
lamport_timestamp: time::Lamport {
lamport_timestamp: clock::Lamport {
replica_id: undo.replica_id as ReplicaId,
value: undo.lamport_timestamp,
},
undo: UndoOperation {
id: time::Local {
id: clock::Local {
replica_id: undo.replica_id as ReplicaId,
value: undo.local_timestamp,
},
@ -2779,7 +2779,7 @@ impl TryFrom<proto::Operation> for Operation {
.into_iter()
.map(|c| {
(
time::Local {
clock::Local {
replica_id: c.replica_id as ReplicaId,
value: c.local_timestamp,
},
@ -2807,11 +2807,11 @@ impl TryFrom<proto::Operation> for Operation {
None
};
Operation::UpdateSelections {
set_id: time::Lamport {
set_id: clock::Lamport {
replica_id: message.replica_id as ReplicaId,
value: message.local_timestamp,
},
lamport_timestamp: time::Lamport {
lamport_timestamp: clock::Lamport {
replica_id: message.replica_id as ReplicaId,
value: message.lamport_timestamp,
},
@ -2820,11 +2820,11 @@ impl TryFrom<proto::Operation> for Operation {
}
proto::operation::Variant::SetActiveSelections(message) => {
Operation::SetActiveSelections {
set_id: message.local_timestamp.map(|value| time::Lamport {
set_id: message.local_timestamp.map(|value| clock::Lamport {
replica_id: message.replica_id as ReplicaId,
value,
}),
lamport_timestamp: time::Lamport {
lamport_timestamp: clock::Lamport {
replica_id: message.replica_id as ReplicaId,
value: message.lamport_timestamp,
},
@ -2859,9 +2859,9 @@ impl TryFrom<proto::Anchor> for Anchor {
type Error = anyhow::Error;
fn try_from(message: proto::Anchor) -> Result<Self, Self::Error> {
let mut version = time::Global::new();
let mut version = clock::Global::new();
for entry in message.version {
version.observe(time::Local {
version.observe(clock::Local {
replica_id: entry.replica_id as ReplicaId,
value: entry.timestamp,
});

4
zed/src/editor/buffer/anchor.rs
View File

@ -1,5 +1,5 @@
use super::{Buffer, Content};
use crate::{time, util::Bias};
use crate::util::Bias;
use anyhow::Result;
use std::{cmp::Ordering, ops::Range};
@ -7,7 +7,7 @@ use std::{cmp::Ordering, ops::Range};
pub struct Anchor {
pub offset: usize,
pub bias: Bias,
pub version: time::Global,
pub version: clock::Global,
}
impl Anchor {

9
zed/src/editor/buffer/operation_queue.rs
View File

@ -1,5 +1,4 @@
use super::Operation;
use crate::time;
use std::{fmt::Debug, ops::Add};
use sum_tree::{Cursor, Dimension, Edit, Item, KeyedItem, SumTree, Summary};
@ -7,7 +6,7 @@ use sum_tree::{Cursor, Dimension, Edit, Item, KeyedItem, SumTree, Summary};
pub struct OperationQueue(SumTree<Operation>);
#[derive(Clone, Copy, Debug, Default, Eq, Ord, PartialEq, PartialOrd)]
pub struct OperationKey(time::Lamport);
pub struct OperationKey(clock::Lamport);
#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
pub struct OperationSummary {
@ -16,7 +15,7 @@ pub struct OperationSummary {
}
impl OperationKey {
pub fn new(timestamp: time::Lamport) -> Self {
pub fn new(timestamp: clock::Lamport) -> Self {
Self(timestamp)
}
}
@ -102,7 +101,7 @@ mod tests {
#[test]
fn test_len() {
let mut clock = time::Lamport::new(0);
let mut clock = clock::Lamport::new(0);
let mut queue = OperationQueue::new();
assert_eq!(queue.len(), 0);
@ -124,5 +123,5 @@ mod tests {
}
#[derive(Clone, Debug, Eq, PartialEq)]
struct TestOperation(time::Lamport);
struct TestOperation(clock::Lamport);
}

11
zed/src/editor/buffer/selection.rs
View File

@ -1,13 +1,10 @@
use crate::{
editor::{
buffer::{Anchor, Buffer, Point, ToOffset as _, ToPoint as _},
Bias, DisplayMapSnapshot, DisplayPoint,
},
time,
use crate::editor::{
buffer::{Anchor, Buffer, Point, ToOffset as _, ToPoint as _},
Bias, DisplayMapSnapshot, DisplayPoint,
};
use std::{cmp::Ordering, mem, ops::Range};
pub type SelectionSetId = time::Lamport;
pub type SelectionSetId = clock::Lamport;
pub type SelectionsVersion = usize;
#[derive(Copy, Clone, Debug, Eq, PartialEq)]

4
zed/src/editor/display_map/fold_map.rs
View File

@ -2,7 +2,7 @@ use super::{
buffer::{AnchorRangeExt, TextSummary},
Anchor, Buffer, Point, ToOffset,
};
use crate::{editor::buffer, settings::HighlightId, time, util::Bias};
use crate::{editor::buffer, settings::HighlightId, util::Bias};
use gpui::{AppContext, ModelHandle};
use parking_lot::Mutex;
use std::{
@ -200,7 +200,7 @@ pub struct FoldMap {
#[derive(Clone)]
struct SyncState {
version: time::Global,
version: clock::Global,
parse_count: usize,
}

3
zed/src/editor/element.rs
View File

@ -2,7 +2,8 @@ use super::{
DisplayPoint, Editor, EditorMode, EditorStyle, Insert, Scroll, Select, SelectPhase, Snapshot,
MAX_LINE_LEN,
};
use crate::{theme::HighlightId, time::ReplicaId};
use crate::theme::HighlightId;
use clock::ReplicaId;
use gpui::{
color::Color,
geometry::{

1
zed/src/lib.rs
View File

@ -17,7 +17,6 @@ pub mod settings;
pub mod test;
pub mod theme;
pub mod theme_selector;
mod time;
pub mod user;
mod util;
pub mod workspace;

2
zed/src/test.rs
View File

@ -6,11 +6,11 @@ use crate::{
language::LanguageRegistry,
rpc::{self, Client, Credentials, EstablishConnectionError},
settings::{self, ThemeRegistry},
time::ReplicaId,
user::UserStore,
AppState,
};
use anyhow::{anyhow, Result};
use clock::ReplicaId;
use futures::{future::BoxFuture, Future};
use gpui::{AsyncAppContext, Entity, ModelHandle, MutableAppContext, TestAppContext};
use parking_lot::Mutex;

6
zed/src/worktree.rs
View File

@ -7,11 +7,11 @@ use crate::{
fuzzy::CharBag,
language::LanguageRegistry,
rpc::{self, proto, Status},
time::{self, ReplicaId},
util::{Bias, TryFutureExt},
};
use ::ignore::gitignore::{Gitignore, GitignoreBuilder};
use anyhow::{anyhow, Result};
use clock::ReplicaId;
use futures::{Stream, StreamExt};
use gpui::{
executor, AppContext, AsyncAppContext, Entity, ModelContext, ModelHandle, MutableAppContext,
@ -1847,9 +1847,9 @@ impl buffer::File for File {
&self,
buffer_id: u64,
text: Rope,
version: time::Global,
version: clock::Global,
cx: &mut MutableAppContext,
) -> Task<Result<(time::Global, SystemTime)>> {
) -> Task<Result<(clock::Global, SystemTime)>> {
self.worktree.update(cx, |worktree, cx| match worktree {
Worktree::Local(worktree) => {
let rpc = worktree.rpc.clone();