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Fix compare_and_swap in Windows thread_parker

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Linus Färnstrand
2020-12-22 12:24:17 +01:00
parent 3eef20ffa0
commit 865e4797df
1 changed files with 1 additions and 1 deletions
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library/std/src/sys/windows/thread_parker.rs
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@@ -113,7 +113,7 @@ impl Parker {
// Wait for something to happen, assuming it's still set to PARKED. // Wait for something to happen, assuming it's still set to PARKED.
c::WaitOnAddress(self.ptr(), &PARKED as *const _ as c::LPVOID, 1, c::INFINITE); c::WaitOnAddress(self.ptr(), &PARKED as *const _ as c::LPVOID, 1, c::INFINITE);
// Change NOTIFIED=>EMPTY but leave PARKED alone. // Change NOTIFIED=>EMPTY but leave PARKED alone.
if self.state.compare_and_swap(NOTIFIED, EMPTY, Acquire) == NOTIFIED { if self.state.compare_exchange(NOTIFIED, EMPTY, Acquire, Acquire) == NOTIFIED {
// Actually woken up by unpark(). // Actually woken up by unpark().
return; return;
} else { } else {