# fast-async-mutex
[](https://github.com/Mnwa/fast-async-mutex/actions?query=workflow%3Abuild)
[](https://docs.rs/fast-async-mutex/)
[](https://crates.io/crates/fast-async-mutex)
[](https://crates.io/crates/fast-async-mutex)
The fast async mutex which uses atomics with spinlock algorithm.
Spinlock algorithm integrated with the Rust futures concept without the overhead of any libs. Also when the `MutexGuard` is dropped,
a waker of the next locker will be executed.
It will be works with any async runtime in `Rust`, it may be a `tokio`, `smol`, `async-std` and etc..
## Examples
```rust
use fast_async_mutex::mutex::Mutex;
#[tokio::main]
async fn main() {
let mutex = Mutex::new(10);
let guard = mutex.lock().await;
assert_eq!(*guard, 10);
}
```
## Benchmarks
There is result of benchmarks which runs on `MacBook Pro (16-inch, 2019) 2,3 GHz 8-Core Intel Core i9 16GB RAM`
Tests you can find in the [benchmarks dir](benchmarks).
```
running 12 tests
test fast_async_mutex::tests::concurrency_without_waiting ... bench: 1,579,327 ns/iter (+/- 122,787)
test fast_async_mutex::tests::create ... bench: 0 ns/iter (+/- 0)
test fast_async_mutex::tests::step_by_step_without_waiting ... bench: 194,037 ns/iter (+/- 18,457)
test futures::tests::concurrency_without_waiting ... bench: 1,623,903 ns/iter (+/- 198,099)
test futures::tests::create ... bench: 84 ns/iter (+/- 20)
test futures::tests::step_by_step_without_waiting ... bench: 205,545 ns/iter (+/- 11,437)
test smol::tests::concurrency_without_waiting ... bench: 1,813,222 ns/iter (+/- 88,291)
test smol::tests::create ... bench: 0 ns/iter (+/- 0)
test smol::tests::step_by_step_without_waiting ... bench: 329,124 ns/iter (+/- 33,841)
test tokio::tests::concurrency_without_waiting ... bench: 22,625,869 ns/iter (+/- 6,185,517)
test tokio::tests::create ... bench: 98 ns/iter (+/- 54)
test tokio::tests::step_by_step_without_waiting ... bench: 718,106 ns/iter (+/- 157,179)
test result: ok. 0 passed; 0 failed; 0 ignored; 12 measured; 0 filtered out
```
## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](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.