diff --git a/embassy-sync/CHANGELOG.md b/embassy-sync/CHANGELOG.md index 3f6b39d8b..46466d610 100644 --- a/embassy-sync/CHANGELOG.md +++ b/embassy-sync/CHANGELOG.md @@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## Unreleased -- Add `len`, `is_empty` and `is_full` functions to `Channel`. +- Add `capacity`, `free_capacity`, `len`, `is_empty` and `is_full` functions to `Channel`. ## 0.5.0 - 2023-12-04 diff --git a/embassy-sync/src/channel.rs b/embassy-sync/src/channel.rs index c4267064c..f9f71d026 100644 --- a/embassy-sync/src/channel.rs +++ b/embassy-sync/src/channel.rs @@ -620,6 +620,18 @@ where self.lock(|c| c.try_receive()) } + /// Returns the maximum number of elements the channel can hold. + pub const fn capacity(&self) -> usize { + N + } + + /// Returns the free capacity of the channel. + /// + /// This is equivalent to `capacity() - len()` + pub fn free_capacity(&self) -> usize { + N - self.len() + } + /// Returns the number of elements currently in the channel. pub fn len(&self) -> usize { self.lock(|c| c.len())