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MutexBlocking works correctly.

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This commit is contained in:
Yifan Wu 2021-12-09 08:46:08 -08:00
parent 6c45c33b41
commit 1a7420ac97
2 changed files with 10 additions and 8 deletions
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3
os/src/sync/mutex.rs
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@ -79,9 +79,10 @@ impl Mutex for MutexBlocking {
fn unlock(&self) {
let mut mutex_inner = self.inner.exclusive_access();
assert_eq!(mutex_inner.locked, true);
mutex_inner.locked = false;
if let Some(waking_task) = mutex_inner.wait_queue.pop_front() {
add_task(waking_task);
} else {
mutex_inner.locked = false;
}
}
}