89 lines
4.0 KiB
Markdown
89 lines
4.0 KiB
Markdown
# Crossbeam Channel
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[](
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https://github.com/crossbeam-rs/crossbeam/actions)
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[](
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https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-channel#license)
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[](
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https://crates.io/crates/crossbeam-channel)
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[](
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https://docs.rs/crossbeam-channel)
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[](
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https://www.rust-lang.org)
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[](https://discord.gg/BBYwKq)
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This crate provides multi-producer multi-consumer channels for message passing.
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It is an alternative to [`std::sync::mpsc`] with more features and better performance.
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Some highlights:
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* [`Sender`]s and [`Receiver`]s can be cloned and shared among threads.
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* Two main kinds of channels are [`bounded`] and [`unbounded`].
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* Convenient extra channels like [`after`], [`never`], and [`tick`].
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* The [`select!`] macro can block on multiple channel operations.
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* [`Select`] can select over a dynamically built list of channel operations.
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* Channels use locks very sparingly for maximum [performance](benchmarks).
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[`std::sync::mpsc`]: https://doc.rust-lang.org/std/sync/mpsc/index.html
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[`Sender`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/struct.Sender.html
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[`Receiver`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/struct.Receiver.html
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[`bounded`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/fn.bounded.html
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[`unbounded`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/fn.unbounded.html
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[`after`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/fn.after.html
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[`never`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/fn.never.html
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[`tick`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/fn.tick.html
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[`select!`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/macro.select.html
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[`Select`]: https://docs.rs/crossbeam-channel/*/crossbeam_channel/struct.Select.html
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## Usage
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Add this to your `Cargo.toml`:
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```toml
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[dependencies]
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crossbeam-channel = "0.4"
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```
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## Compatibility
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Crossbeam Channel supports stable Rust releases going back at least six months,
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and every time the minimum supported Rust version is increased, a new minor
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version is released. Currently, the minimum supported Rust version is 1.36.
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## License
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Licensed under either of
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* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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at your option.
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#### Contribution
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Unless you explicitly state otherwise, any contribution intentionally submitted
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for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
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dual licensed as above, without any additional terms or conditions.
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#### Third party software
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This product includes copies and modifications of software developed by third parties:
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* [examples/matching.rs](examples/matching.rs) includes
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[matching.go](http://www.nada.kth.se/~snilsson/concurrency/src/matching.go) by Stefan Nilsson,
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licensed under Creative Commons Attribution 3.0 Unported License.
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* [src/flavors/array.rs](src/flavors/array.rs) is based on
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[Bounded MPMC queue](http://www.1024cores.net/home/lock-free-algorithms/queues/bounded-mpmc-queue)
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by Dmitry Vyukov, licensed under the Simplified BSD License and the Apache License, Version 2.0.
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* [tests/mpsc.rs](tests/mpsc.rs) includes modifications of code from The Rust Programming Language,
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licensed under the MIT License and the Apache License, Version 2.0.
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* [tests/golang.rs](tests/golang.rs) is based on code from The Go Programming Language, licensed
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under the 3-Clause BSD License.
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See the source code files for more details.
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Copies of third party licenses can be found in [LICENSE-THIRD-PARTY](LICENSE-THIRD-PARTY).
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