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Added an early return to put_and_try_run

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Trangar 2019-08-08 09:15:11 +02:00 committed by Denis Kolodin
parent 53136b8fa9
commit 8e01a59a27
1 changed files with 12 additions and 10 deletions
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6
src/scheduler.rs
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@ -49,7 +49,10 @@ impl Scheduler {
pub(crate) fn put_and_try_run(&self, runnable: Box<dyn Runnable>) { pub(crate) fn put_and_try_run(&self, runnable: Box<dyn Runnable>) {
self.sequence.borrow_mut().push_back(runnable); self.sequence.borrow_mut().push_back(runnable);
if self.lock.compare_and_swap(false, true, Ordering::Relaxed) == false { if self.lock.compare_and_swap(false, true, Ordering::Relaxed) {
return;
}
loop { loop {
let do_next = self.sequence.borrow_mut().pop_front(); let do_next = self.sequence.borrow_mut().pop_front();
if let Some(runnable) = do_next { if let Some(runnable) = do_next {
@ -61,4 +64,3 @@ impl Scheduler {
self.lock.store(false, Ordering::Relaxed); self.lock.store(false, Ordering::Relaxed);
} }
} }
}