#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

#9 in Concurrency

Download history 21253/week @ 2018-11-17 20632/week @ 2018-11-24 24161/week @ 2018-12-01 29657/week @ 2018-12-08 29045/week @ 2018-12-15 15734/week @ 2018-12-22 27061/week @ 2018-12-29 42990/week @ 2019-01-05 53177/week @ 2019-01-12 54896/week @ 2019-01-19 60642/week @ 2019-01-26 61250/week @ 2019-02-02 71143/week @ 2019-02-09 64739/week @ 2019-02-16 64989/week @ 2019-02-23

133,777 downloads per month
Used in 441 crates (90 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.