#channel #mpmc #select #golang #message


Multi-producer multi-consumer channels for message passing

22 releases

0.4.2 Feb 22, 2020
0.4.0 Nov 6, 2019
0.3.9 Jul 24, 2019
0.3.8 Jan 29, 2019
0.1.1 Nov 27, 2017

#2 in Concurrency

Download history 83774/week @ 2019-12-17 51550/week @ 2019-12-24 59602/week @ 2019-12-31 96208/week @ 2020-01-07 86481/week @ 2020-01-14 88213/week @ 2020-01-21 96892/week @ 2020-01-28 98117/week @ 2020-02-04 95104/week @ 2020-02-11 102841/week @ 2020-02-18 113058/week @ 2020-02-25 110205/week @ 2020-03-03 108052/week @ 2020-03-10 111398/week @ 2020-03-17 110718/week @ 2020-03-24 103399/week @ 2020-03-31

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Used in 1,341 crates (273 directly)

MIT/Apache-2.0 AND BSD-2-Clause

5.5K SLoC

Crossbeam Channel

Build Status License Cargo Documentation Rust 1.28+ chat

This crate provides multi-producer multi-consumer channels for message passing. It is an alternative to std::sync::mpsc with more features and better performance.

Some highlights:

  • Senders and Receivers can be cloned and shared among threads.
  • Two main kinds of channels are bounded and unbounded.
  • Convenient extra channels like after, never, and tick.
  • The select! macro can block on multiple channel operations.
  • Select can select over a dynamically built list of channel operations.
  • Channels use locks very sparingly for maximum performance.


Add this to your Cargo.toml:

crossbeam-channel = "0.4"

Next, add this to your crate:

extern crate crossbeam_channel;


The minimum supported Rust version is 1.28. Any change to this is considered a breaking change.


Licensed under either of

at your option.


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.

Third party software

This product includes copies and modifications of software developed by third parties:

  • examples/matching.rs includes matching.go by Stefan Nilsson, licensed under Creative Commons Attribution 3.0 Unported License.

  • src/flavors/array.rs is based on Bounded MPMC queue by Dmitry Vyukov, licensed under the Simplified BSD License and the Apache License, Version 2.0.

  • tests/mpsc.rs includes modifications of code from The Rust Programming Language, licensed under the MIT License and the Apache License, Version 2.0.

  • tests/golang.rs is based on code from The Go Programming Language, licensed under the 3-Clause BSD License.

See the source code files for more details.

Copies of third party licenses can be found in LICENSE-THIRD-PARTY.