#broadcast-channel #channel #broadcast #lock-free #mpmc #no-std

yanked blink-channel

Fast, lock-free, bounded, multiple-producer, multiple-consumer, lossy, broadcast channel

1 unstable release

0.1.0 Feb 21, 2024

#19 in #broadcast-channel

MIT license

27KB
529 lines

Blink-channel

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Fast, Lock-free, Bounded, Lossy Rust broadcast channel.

Sometimes it may spin the CPU for a bit if there is a contention on a single element in the buffer for write and read operations. Could happen more often for small buffers.

This is implemented with ring buffer and atomic operations, which provide us with lock-free behavior with no extra dependencies.

The API of the blink-channel is similar to that of the std::sync::mpsc channels. However, there are some differences:

  • It allows for multiple consumers (receivers) and multiple prodocuers (senders).
  • The channel broadcasts every send to every consumer.
  • Lossy, the sender will overwrite old data, so receivers must be quick or they will lose the old data (don' t blink).
  • Implemented for no_std environments.

Due to that nature, this is useful in applications where data comes in very quick and new data is always more important than old data which can be discarded. This could be useful for example in implementing audio driver, where a small glitch but staying up to date is better than delayed audio.

Minimum Supported Rust Version (MSRV)

The minimum supported Rust version for this crate is 1.60.0

License

Licensed under MIT (LICENSE or http://opensource.org/licenses/MIT)

Dependencies

~0–24MB
~331K SLoC