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Use new SpinLock APIs in wait.rs

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This commit is contained in:
Ruihan Li
2024-11-07 22:57:03 +08:00
committed by Tate, Hongliang Tian
parent 1f612e45f7
commit 11382524d1
1 changed files with 5 additions and 5 deletions
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10
ostd/src/sync/wait.rs
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@ -3,7 +3,7 @@
use alloc::{collections::VecDeque, sync::Arc};
use core::sync::atomic::{AtomicBool, AtomicU32, Ordering};
use super::SpinLock;
use super::{LocalIrqDisabled, SpinLock};
use crate::task::{scheduler, Task};
// # Explanation on the memory orders
@ -43,7 +43,7 @@ use crate::task::{scheduler, Task};
pub struct WaitQueue {
// A copy of `wakers.len()`, used for the lock-free fast path in `wake_one` and `wake_all`.
num_wakers: AtomicU32,
wakers: SpinLock<VecDeque<Arc<Waker>>>,
wakers: SpinLock<VecDeque<Arc<Waker>>, LocalIrqDisabled>,
}
impl WaitQueue {
@ -92,7 +92,7 @@ impl WaitQueue {
}
loop {
let mut wakers = self.wakers.disable_irq().lock();
let mut wakers = self.wakers.lock();
let Some(waker) = wakers.pop_front() else {
return false;
};
@ -116,7 +116,7 @@ impl WaitQueue {
let mut num_woken = 0;
loop {
let mut wakers = self.wakers.disable_irq().lock();
let mut wakers = self.wakers.lock();
let Some(waker) = wakers.pop_front() else {
break;
};
@ -142,7 +142,7 @@ impl WaitQueue {
/// Enqueues the input [`Waker`] to the wait queue.
#[doc(hidden)]
pub fn enqueue(&self, waker: Arc<Waker>) {
let mut wakers = self.wakers.disable_irq().lock();
let mut wakers = self.wakers.lock();
wakers.push_back(waker);
self.num_wakers.fetch_add(1, Ordering::Acquire);
}