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Ensure that only one cache priming task can run at a time

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Fixes #8632.
This commit is contained in:
Boris-Chengbiao Zhou 2021-04-29 21:12:48 +02:00
parent 80bee14e14
commit ce8c6c4762
2 changed files with 18 additions and 0 deletions
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2
crates/rust-analyzer/src/global_state.rs
View File

@ -84,6 +84,7 @@ pub(crate) struct GlobalState {
pub(crate) workspace_build_data: Option<BuildDataResult>,
pub(crate) fetch_build_data_queue:
OpQueue<BuildDataCollector, Option<anyhow::Result<BuildDataResult>>>,
pub(crate) prime_caches_queue: OpQueue<(), ()>,
latest_requests: Arc<RwLock<LatestRequests>>,
}
@ -146,6 +147,7 @@ impl GlobalState {
workspaces: Arc::new(Vec::new()),
fetch_workspaces_queue: OpQueue::default(),
workspace_build_data: None,
prime_caches_queue: OpQueue::default(),
fetch_build_data_queue: OpQueue::default(),
latest_requests: Default::default(),

16
crates/rust-analyzer/src/main_loop.rs
View File

@ -278,6 +278,8 @@ impl GlobalState {
};
}
let mut finished = false;
for progress in prime_caches_progress {
let (state, message, fraction);
match progress {
@ -295,11 +297,18 @@ impl GlobalState {
state = Progress::End;
message = None;
fraction = 1.0;
finished = true;
}
};
self.report_progress("Indexing", state, message, Some(fraction));
}
// If the task is cancelled we may observe two `PrimeCachesProgress::Finished` so we
// have to make sure to only call `op_completed()` once.
if finished {
self.prime_caches_queue.op_completed(());
}
}
Event::Vfs(mut task) => {
let _p = profile::span("GlobalState::handle_event/vfs");
@ -711,6 +720,13 @@ impl GlobalState {
}
fn update_file_notifications_on_threadpool(&mut self) {
self.maybe_update_diagnostics();
// Ensure that only one cache priming task can run at a time
self.prime_caches_queue.request_op(());
if self.prime_caches_queue.should_start_op().is_none() {
return;
}
self.task_pool.handle.spawn_with_sender({
let snap = self.snapshot();
move |sender| {