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bugfix in mpmc.dequeue

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This commit is contained in:
konstantin 2019-10-04 17:07:35 +02:00 committed by Jorge Aparicio
parent a6949b5439
commit baa5e620d4
1 changed files with 5 additions and 1 deletions
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4
src/mpmc.rs
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@ -493,10 +493,14 @@ unsafe fn dequeue<T>(buffer: *mut Cell<T>, dequeue_pos: &AtomicU8, mask: u8) ->
} }
} else if dif < 0 { } else if dif < 0 {
return None; return None;
} else {
if pos == 255 && dif == 255{
return None;
} else { } else {
pos = dequeue_pos.load(Ordering::Relaxed); pos = dequeue_pos.load(Ordering::Relaxed);
} }
} }
}
let data = (*cell).data.as_ptr().read(); let data = (*cell).data.as_ptr().read();
(*cell) (*cell)