async-mutex

An async mutex.

The locking mechanism uses eventual fairness to ensure locking will be fair on average without sacrificing performance. This is done by forcing a fair lock whenever a lock operation is starved for longer than 0.5 milliseconds.

Examples

```rust use async_mutex::Mutex; use smol::Task; use std::sync::Arc;

let m = Arc::new(Mutex::new(0)); let mut tasks = vec![];

for _ in 0..10 { let m = m.clone(); tasks.push(Task::spawn(async move { *m.lock().await += 1; })); }

for t in tasks { t.await; } assert_eq!(*m.lock().await, 10); ```

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.