embassy-sync 0.6.1

no-std, no-alloc synchronization primitives with async support
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# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## 0.6.1 - 2024-11-22

- Add `LazyLock` sync primitive.
- Add `Watch` sync primitive.
- Add `clear`, `len`, `is_empty` and `is_full` functions to `zerocopy_channel`.
- Add `capacity`, `free_capacity`, `clear`, `len`, `is_empty` and `is_full` functions to `channel::{Sender, Receiver}`.
- Add `capacity`, `free_capacity`, `clear`, `len`, `is_empty` and `is_full` functions to `priority_channel::{Sender, Receiver}`.
- Add `GenericAtomicWaker` utility.

## 0.6.0 - 2024-05-29

- Add `capacity`, `free_capacity`, `clear`, `len`, `is_empty` and `is_full` functions to `Channel`.
- Add `capacity`, `free_capacity`, `clear`, `len`, `is_empty` and `is_full` functions to `PriorityChannel`.
- Add `capacity`, `free_capacity`, `clear`, `len`, `is_empty` and `is_full` functions to `PubSubChannel`.
- Made `PubSubBehavior` sealed
  - If you called `.publish_immediate(...)` on the queue directly before, then now call `.immediate_publisher().publish_immediate(...)`
- Add `OnceLock` sync primitive.
- Add constructor for `DynamicChannel`
- Add ready_to_receive functions to `Channel` and `Receiver`.

## 0.5.0 - 2023-12-04

- Add a `PriorityChannel`.
- Remove `nightly` and `unstable-traits` features in preparation for 1.75.
- Upgrade `heapless` to 0.8.
- Upgrade `static-cell` to 2.0.

## 0.4.0 - 2023-10-31

- Re-add `impl_trait_projections`
- switch to `embedded-io 0.6`

## 0.3.0 - 2023-09-14

- switch to `embedded-io 0.5`
- add api for polling channels with context
- standardise fn names on channels
- add zero-copy channel

## 0.2.0 - 2023-04-13

- pubsub: Fix messages not getting popped when the last subscriber that needed them gets dropped.
- pubsub: Move instead of clone messages when the last subscriber pops them.
- pubsub: Pop messages which count is 0 after unsubscribe.
- Update `embedded-io` from `0.3` to `0.4` (uses `async fn` in traits).
- impl `Default` for `WakerRegistration`
- impl `Default` for `Signal`
- Remove unnecessary uses of `atomic-polyfill`
- Add `#[must_use]` to all futures.

## 0.1.0 - 2022-08-26

- First release