#channel #mpmc #select #golang #message


Multi-producer multi-consumer channels for message passing

20 releases

0.3.8 Jan 29, 2019
0.3.6 Dec 30, 2018
0.3.2 Nov 16, 2018
0.2.3 Jul 20, 2018
0.1.1 Nov 27, 2017

#3 in Concurrency

Download history 20757/week @ 2018-12-20 20406/week @ 2018-12-27 39697/week @ 2019-01-03 50044/week @ 2019-01-10 55123/week @ 2019-01-17 57806/week @ 2019-01-24 60591/week @ 2019-01-31 68713/week @ 2019-02-07 66720/week @ 2019-02-14 64121/week @ 2019-02-21 56136/week @ 2019-02-28 47869/week @ 2019-03-07 43553/week @ 2019-03-14 39003/week @ 2019-03-21 40767/week @ 2019-03-28

227,411 downloads per month
Used in 495 crates (103 directly)


5.5K SLoC

Crossbeam Channel

Build Status License Cargo Documentation Rust 1.26+

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 = "0.3"

Next, add this to your crate:

extern crate crossbeam_channel;


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.