- `acquire` and `acquire_all` futures were `!Send`, even for `M: RawMutex + Send` due to the captured `Cell`. - If multiple `acquire` tasks were queued, waking the first would not wake the second, even if there were permits remaining after the first `acquire` completed.
embassy-sync
An Embassy project.
Synchronization primitives and data structures with async support:
Channel- A Multiple Producer Multiple Consumer (MPMC) channel. Each message is only received by a single consumer.PriorityChannel- A Multiple Producer Multiple Consumer (MPMC) channel. Each message is only received by a single consumer. Higher priority items are shifted to the front of the channel.PubSubChannel- A broadcast channel (publish-subscribe) channel. Each message is received by all consumers.Signal- Signalling latest value to a single consumer.Mutex- Mutex for synchronizing state between asynchronous tasks.Pipe- Byte stream implementingembedded_iotraits.WakerRegistration- Utility to register and wake aWaker.AtomicWaker- A variant ofWakerRegistrationaccessible using a non-mut API.MultiWakerRegistration- Utility registering and waking multipleWaker's.
Interoperability
Futures from this crate can run on any executor.