bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/ra-salsa/tests/parallel/signal.rs')
-rw-r--r--crates/ra-salsa/tests/parallel/signal.rs40
1 files changed, 0 insertions, 40 deletions
diff --git a/crates/ra-salsa/tests/parallel/signal.rs b/crates/ra-salsa/tests/parallel/signal.rs
deleted file mode 100644
index 0af7b66e48..0000000000
--- a/crates/ra-salsa/tests/parallel/signal.rs
+++ /dev/null
@@ -1,40 +0,0 @@
-use parking_lot::{Condvar, Mutex};
-
-#[derive(Default)]
-pub(crate) struct Signal {
- value: Mutex<usize>,
- cond_var: Condvar,
-}
-
-impl Signal {
- pub(crate) fn signal(&self, stage: usize) {
- tracing::debug!("signal({})", stage);
-
- // This check avoids acquiring the lock for things that will
- // clearly be a no-op. Not *necessary* but helps to ensure we
- // are more likely to encounter weird race conditions;
- // otherwise calls to `sum` will tend to be unnecessarily
- // synchronous.
- if stage > 0 {
- let mut v = self.value.lock();
- if stage > *v {
- *v = stage;
- self.cond_var.notify_all();
- }
- }
- }
-
- /// Waits until the given condition is true; the fn is invoked
- /// with the current stage.
- pub(crate) fn wait_for(&self, stage: usize) {
- tracing::debug!("wait_for({})", stage);
-
- // As above, avoid lock if clearly a no-op.
- if stage > 0 {
- let mut v = self.value.lock();
- while *v < stage {
- self.cond_var.wait(&mut v);
- }
- }
- }
-}