libs/rt-thread
libs/rt-thread
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定时处理函数临界区保护更加完整

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定时器回调函数中，添加工作之前打开了中断。此时在极端情况下，会导致状态不对。
This commit is contained in:
tangyuxin 2021-02-01 14:26:47 +08:00
parent 10b5aa8f59
commit 5a16a2060e
1 changed files with 27 additions and 8 deletions
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35
components/drivers/src/workqueue.c
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@ -164,17 +164,36 @@ static rt_err_t _workqueue_cancel_work(struct rt_work *work)
static void _delayed_work_timeout_handler(void *parameter)
{
struct rt_work *delayed_work;
struct rt_work *work;
struct rt_workqueue *queue;
rt_base_t level;
delayed_work = (struct rt_work *)parameter;
work = (struct rt_work *)parameter;
queue = work->workqueue;
RT_ASSERT(queue != RT_NULL);
level = rt_hw_interrupt_disable();
rt_timer_stop(&(delayed_work->timer));
rt_timer_detach(&(delayed_work->timer));
delayed_work->flags &= ~RT_WORK_STATE_SUBMITTING;
delayed_work->type &= ~RT_WORK_TYPE_DELAYED;
rt_hw_interrupt_enable(level);
_workqueue_submit_work(delayed_work->workqueue, delayed_work, 0);
rt_timer_detach(&(work->timer));
work->flags &= ~RT_WORK_STATE_SUBMITTING;
/* insert work queue */
if (queue->work_current != work)
{
rt_list_insert_after(queue->work_list.prev, &(work->list));
work->flags |= RT_WORK_STATE_PENDING;
}
/* whether the workqueue is doing work */
if (queue->work_current == RT_NULL &&
((queue->work_thread->stat & RT_THREAD_STAT_MASK) == RT_THREAD_SUSPEND))
{
rt_hw_interrupt_enable(level);
/* resume work thread */
rt_thread_resume(queue->work_thread);
rt_schedule();
}
else
{
rt_hw_interrupt_enable(level);
}
}
struct rt_workqueue *rt_workqueue_create(const char *name, rt_uint16_t stack_size, rt_uint8_t priority)