diff options
Diffstat (limited to 'library/std/src/thread/mod.rs')
| -rw-r--r-- | library/std/src/thread/mod.rs | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs index 6075173db47..dff981c900c 100644 --- a/library/std/src/thread/mod.rs +++ b/library/std/src/thread/mod.rs @@ -595,7 +595,7 @@ impl Builder { // Similarly, the `sys` implementation must guarantee that no references to the closure // exist after the thread has terminated, which is signaled by `Thread::join` // returning. - native: unsafe { imp::Thread::new(stack_size, main)? }, + native: unsafe { imp::Thread::new(stack_size, my_thread.name(), main)? }, thread: my_thread, packet: my_packet, }) @@ -1399,6 +1399,11 @@ where } /// The internal representation of a `Thread` handle +/// +/// We explicitly set the alignment for our guarantee in Thread::into_raw. This +/// allows applications to stuff extra metadata bits into the alignment, which +/// can be rather useful when working with atomics. +#[repr(align(8))] struct Inner { name: Option<ThreadNameString>, id: ThreadId, @@ -1582,7 +1587,8 @@ impl Thread { /// Consumes the `Thread`, returning a raw pointer. /// /// To avoid a memory leak the pointer must be converted - /// back into a `Thread` using [`Thread::from_raw`]. + /// back into a `Thread` using [`Thread::from_raw`]. The pointer is + /// guaranteed to be aligned to at least 8 bytes. /// /// # Examples /// |