https://github.com/jonhoo/bus

Efficient, lock-free, bounded Rust broadcast channel
https://github.com/jonhoo/bus

broadcast communication lock-free rust synchronization

Last synced: about 2 months ago
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Efficient, lock-free, bounded Rust broadcast channel

• Host: GitHub
• URL: https://github.com/jonhoo/bus
• Owner: jonhoo
• License: apache-2.0
• Created: 2016-06-01T00:38:04.000Z (about 9 years ago)
• Default Branch: main
• Last Pushed: 2023-09-09T16:14:15.000Z (almost 2 years ago)
• Last Synced: 2025-05-07T09:56:13.643Z (about 2 months ago)
• Topics: broadcast, communication, lock-free, rust, synchronization
• Language: Rust
• Size: 188 KB
• Stars: 815
• Watchers: 15
• Forks: 39
• Open Issues: 10
• Metadata Files:
  • Readme: README.md
  • License: LICENSE-APACHE

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README

        
# bus

[![Crates.io](https://img.shields.io/crates/v/bus.svg)](https://crates.io/crates/bus)

[![Documentation](https://docs.rs/bus/badge.svg)](https://docs.rs/bus/)

[![Codecov](https://codecov.io/github/jonhoo/bus/coverage.svg?branch=master)](https://codecov.io/gh/jonhoo/bus)

Bus provides a lock-free, bounded, single-producer, multi-consumer, broadcast channel.

**NOTE: bus sometimes busy-waits in the current implementation, which may cause increased CPU usage — see [#23](https://github.com/jonhoo/bus/issues/23).**

It uses a circular buffer and atomic instructions to implement a lock-free single-producer,

multi-consumer channel. The interface is similar to that of the `std::sync::mpsc` channels,

except that multiple consumers (readers of the channel) can be produced, whereas only a single

sender can exist. Furthermore, in contrast to most multi-consumer FIFO queues, bus is

*broadcast*; every send goes to every consumer.

I haven't seen this particular implementation in literature (some extra bookkeeping is

necessary to allow multiple consumers), but a lot of related reading can be found in Ross

Bencina's blog post ["Some notes on lock-free and wait-free

algorithms"](http://www.rossbencina.com/code/lockfree).

See [the documentation] for usage examples.

  [the documentation]: https://docs.rs/bus/

## 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.