Skip to content

Rwlock downgrade #128219

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 10 commits into from
Nov 18, 2024
+662 −261
Merged

Rwlock downgrade #128219

Changes from 1 commit
Commits
Show all changes
10 commits
Select commit Hold shift + click to select a range
b683e1d
add `RwLock` `downgrade` tests
connortsui20 Oct 16, 2024
f71ecc4
add `downgrade` method onto `RwLockWriteGuard`
connortsui20 Oct 16, 2024
3336ae0
add simple `downgrade` implementations
connortsui20 Oct 16, 2024
fa9f04a
add `downgrade` to `futex` implementation
connortsui20 Oct 16, 2024
31e35c2
modify queue implementation documentation
connortsui20 Oct 25, 2024
26b5a14
add `downgrade` to `queue` implementation
connortsui20 Oct 25, 2024
3d191b5
add safety comments for queue implementation
connortsui20 Oct 29, 2024
84fd95c
fix memory ordering bug + bad test
connortsui20 Nov 8, 2024
782b07e
fix `DOWNGRADED` bit unpreserved
connortsui20 Nov 16, 2024
fc52cdd
reduce threads in downgrade test
connortsui20 Nov 16, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Prev Previous commit
reduce threads in downgrade test
  • Loading branch information
@connortsui20
connortsui20 committed Nov 16, 2024
commit fc52cdd9a8b9c2b2e21b0976373e6b54f4c3b5fa
2 changes: 1 addition & 1 deletion library/std/src/sync/rwlock/tests.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -515,7 +515,7 @@ fn test_downgrade_observe() {
// Taken from the test `test_rwlock_downgrade` from:
// https://github.com/Amanieu/parking_lot/blob/master/src/rwlock.rs

const W: usize = if cfg!(target_pointer_width = "64") { 100 } else { 20 };
const W: usize = 20;
const N: usize = 100;

// This test spawns `W` writer threads, where each will increment a counter `N` times, ensuring
Expand Down
Loading