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Improve aquisition logic

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徐启航
2023-11-24 15:32:18 +08:00
committed by Tate, Hongliang Tian
parent 3790efb0d9
commit 576578baf4
1 changed files with 8 additions and 5 deletions
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13
framework/jinux-frame/src/sync/mutex.rs
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@ -33,11 +33,7 @@ impl<T> Mutex<T> {
pub fn try_lock(&self) -> Option<MutexGuard<T>> { pub fn try_lock(&self) -> Option<MutexGuard<T>> {
// Cannot be reduced to `then_some`, or the possible dropping of the temporary // Cannot be reduced to `then_some`, or the possible dropping of the temporary
// guard will cause an unexpected unlock. // guard will cause an unexpected unlock.
// self.acquire_lock().then(|| MutexGuard::new(self))
// TODO: Remove the lint suppression when the false positive warning is fixed
// upstream.
#[allow(clippy::unnecessary_lazy_evaluations)]
self.acquire_lock().then(|| MutexGuard { mutex: self })
} }
/// Release the mutex and wake up one thread which is blocked on this mutex. /// Release the mutex and wake up one thread which is blocked on this mutex.
@ -66,10 +62,17 @@ impl<T: fmt::Debug> fmt::Debug for Mutex<T> {
unsafe impl<T: Send> Send for Mutex<T> {} unsafe impl<T: Send> Send for Mutex<T> {}
unsafe impl<T: Send> Sync for Mutex<T> {} unsafe impl<T: Send> Sync for Mutex<T> {}
#[clippy::has_significant_drop]
pub struct MutexGuard<'a, T> { pub struct MutexGuard<'a, T> {
mutex: &'a Mutex<T>, mutex: &'a Mutex<T>,
} }
impl<'a, T> MutexGuard<'a, T> {
fn new(mutex: &'a Mutex<T>) -> MutexGuard<'a, T> {
MutexGuard { mutex }
}
}
impl<'a, T> Deref for MutexGuard<'a, T> { impl<'a, T> Deref for MutexGuard<'a, T> {
type Target = T; type Target = T;