diff options
| -rw-r--r-- | library/alloc/src/task.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/library/alloc/src/task.rs b/library/alloc/src/task.rs index 58a9ae77244..528ee4ff154 100644 --- a/library/alloc/src/task.rs +++ b/library/alloc/src/task.rs @@ -87,6 +87,9 @@ pub trait Wake { #[stable(feature = "wake_trait", since = "1.51.0")] impl<W: Wake + Send + Sync + 'static> From<Arc<W>> for Waker { + /// Use a `Wake`-able type as a `Waker`. + /// + /// No heap allocations or atomic operations are used for this conversion. fn from(waker: Arc<W>) -> Waker { // SAFETY: This is safe because raw_waker safely constructs // a RawWaker from Arc<W>. @@ -96,6 +99,9 @@ impl<W: Wake + Send + Sync + 'static> From<Arc<W>> for Waker { #[stable(feature = "wake_trait", since = "1.51.0")] impl<W: Wake + Send + Sync + 'static> From<Arc<W>> for RawWaker { + /// Use a `Wake`-able type as a `RawWaker`. + /// + /// No heap allocations or atomic operations are used for this conversion. fn from(waker: Arc<W>) -> RawWaker { raw_waker(waker) } |