rust/library/std/src/sync/poison, branch auto

Mutex/RwLock/ReentrantLock::data_ptr to be const fn

2025-09-22T19:51:50+00:00

fix Condvar::wait_timeout docs

2025-09-13T18:13:37+00:00

fix visibility of private getters

2025-08-23T13:39:39+00:00

Signed-off-by: Connor Tsui

move `WaitTimeoutResult` up to `mod.rs`

2025-08-23T13:20:47+00:00

Since `WaitTimeoutResult` is poison-agnostic, we want to use the same type for both variants of `Condvar`. Signed-off-by: Connor Tsui

Rollup merge of #144648 - connortsui20:nonpoison_rwlock, r=Mark-Simulacrum

2025-08-23T02:00:46+00:00

Implementation: `#[feature(nonpoison_rwlock)]` Tracking Issue: https://github.com/rust-lang/rust/issues/134645 This PR continues the effort made in https://github.com/rust-lang/rust/pull/144022 by adding the implementation of `nonpoison::rwlock`. Many of the changes here are similar to the changes made to implement `nonpoison::mutex`. The only real difference is that this PR includes a reorganizing of the existing `poison::rwlock` file that hopefully makes both variants more readable. ### Related PRs - `nonpoison_condvar` implementation: https://github.com/rust-lang/rust/pull/144651 - `nonpoison_once` implementation: https://github.com/rust-lang/rust/pull/144653

run spellcheck as a tidy extra check in ci

2025-08-16T14:51:44+00:00

reorganize rwlock file

2025-08-09T06:16:51+00:00

This commit is a purely cosmetic change to the documentation and ordering of items in the `rwlock.rs` file, which will help discern the actual difference between the `nonpoison` and `poison` variants of `rwlock`. List of changes (lots of small things): - Clean up some of the existing field doc comments - Add documentation for every field in struct definitions - Consolidate related implementation blocks (1 implementation block per guard instead of 2) - Use the lifetime name `'rwlock` instead of `'a` - Reorder implementation blocks to be consistent across the entire file (follows the order `ReadGuard`, `WriteGuard`, `MappedReadGuard`, MappedWriteGuard`) - Move simple trait implementations to the bottom of the file - Rename the `poison` field in `MappedRwLockWriteGuard` to posion_guard` - Cut off comments at 100 columns - Update the documentation of `downgrade` to match stabilization PR # 143191

Rollup merge of #144185 - purplesyringa:poisoning-wording, r=Amanieu

2025-08-02T09:24:22+00:00

Document guarantees of poisoning This mostly documents the current behavior of `Mutex` and `RwLock` (rust-lang/rust#143471) as imperfect. It's unlikely that the situation improves significantly in the future, and even if it does, the rules will probably be more complicated than "poisoning is completely reliable", so this is a conservative guarantee. We also explicitly specify that `OnceLock` never poisons, even though it has an API similar to mutexes. Fixes rust-lang/rust#143471 by improving documentation. r? ``@Amanieu``

clean up existing poison files

2025-07-29T08:32:14+00:00

Add a note on foreign exceptions

2025-07-25T19:14:02+00:00