原创 等待队列

1. 定义“等待队列头”

   
   

wait_queue_head_t
my_queue;

2. 初始化“等待队列头”

   
   

init_waitqueue_head(&my_queue);

3. 定义等待队列

   
   

DECLARE_WAITQUEUE_HEAD(name)

4. 添加／移除等待队列

   
   

void
fastcall add_wait_queue(wait_queue_head_t *q, wait_queue_t *wait);

void
fastcall remove_wait_queue(wait_queue_head_t *q, wait_queue_t *wait);

5. 等待事件

   
   

wait_event(queue,
condition)

wait_event_interruptible(queue,
condition)

wait_event_timeout(queue,
condition, timeout)

wait_even_interruptible_timeout(queue,
condition, timeout)

6. 唤醒队列

   
   

void
wake_up(wait_queue_head_t *queue);

void
wake_up_interruptible(wait_queue_head_t *queue);

7. 在等待队列上睡眠

   
   

sleep_on(wait_queue_head_t
*q);

interruptible_sleep_on(wait_queue_head_t
*q);