Crate chute

Multi-producer multi-consumer lock-free multicast¹ queue.

Memory-wise all consumers works with the same shared data blocks, so there is no duplication.

Read performance is stellar - there is only one atomic read per block. Most of the time - this is just plain continuous data reading.

spmc vs mpmc

Both, spmc and mpmc can work in multi-producer mode.

In general, using Arc<spin::Mutex<spmc::Queue<T>>> is more performant than Arc<mpmc::Queue<T>> from writer perspective. But! Writing simultaneously from several threads is faster with mpmc.

Read performance identical.

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1. Each consumer gets every message sent to queue, from the moment of subscription. ↩

Modules

• mpmc
  Multi-producer, multi-consumer.
• spmc
  Single-producer, multi-consumer.

Structs

• ClonedReader
  Cloning queue consumer.
• Reader
  Queue consumer.

Traits

• LendingIterator
  Simple GAT lending iterator trait.