diff options
Diffstat (limited to 'library/std/src/sync')
| -rw-r--r-- | library/std/src/sync/mpmc/list.rs | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/library/std/src/sync/mpmc/list.rs b/library/std/src/sync/mpmc/list.rs index 88a8c75f7c8..523e6d2f3bb 100644 --- a/library/std/src/sync/mpmc/list.rs +++ b/library/std/src/sync/mpmc/list.rs @@ -63,14 +63,14 @@ struct Block<T> { impl<T> Block<T> { /// Creates an empty block. - fn new() -> Block<T> { + fn new() -> Box<Block<T>> { // SAFETY: This is safe because: // [1] `Block::next` (AtomicPtr) may be safely zero initialized. // [2] `Block::slots` (Array) may be safely zero initialized because of [3, 4]. // [3] `Slot::msg` (UnsafeCell) may be safely zero initialized because it // holds a MaybeUninit. // [4] `Slot::state` (AtomicUsize) may be safely zero initialized. - unsafe { MaybeUninit::zeroed().assume_init() } + unsafe { Box::new_zeroed().assume_init() } } /// Waits until the next pointer is set. @@ -199,13 +199,13 @@ impl<T> Channel<T> { // If we're going to have to install the next block, allocate it in advance in order to // make the wait for other threads as short as possible. if offset + 1 == BLOCK_CAP && next_block.is_none() { - next_block = Some(Box::new(Block::<T>::new())); + next_block = Some(Block::<T>::new()); } // If this is the first message to be sent into the channel, we need to allocate the // first block and install it. if block.is_null() { - let new = Box::into_raw(Box::new(Block::<T>::new())); + let new = Box::into_raw(Block::<T>::new()); if self .tail |