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Raw spin lock 增加lock_irqsave、unlock_irqrestore(#151)

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Raw spin lock 增加lock_irqsave、unlock_irqrestore
This commit is contained in:
Gou Ngai 2023-01-16 19:58:50 +08:00 committed by GitHub
parent 06b09f34ed
commit d8a064128a
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1 changed files with 13 additions and 4 deletions
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15
kernel/src/libs/spinlock.rs
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@ -127,10 +127,19 @@ impl RawSpinlock {
self.0.store(value, Ordering::SeqCst); self.0.store(value, Ordering::SeqCst);
} }
// todo: spin_lock_irqsave /// @brief 保存中断状态到flags中，关闭中断，并对自旋锁加锁
// todo: spin_unlock_irqrestore pub fn lock_irqsave(&self, flags: &mut u64) {
} local_irq_save(flags);
self.lock();
}
/// @brief 恢复rflags以及中断状态并解锁自旋锁
pub fn unlock_irqrestore(&self, flags: &u64){
self.unlock();
local_irq_restore(flags);
}
}
/// 实现了守卫的SpinLock, 能够支持内部可变性 /// 实现了守卫的SpinLock, 能够支持内部可变性
/// ///
#[derive(Debug)] #[derive(Debug)]