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[DeviceDrivers]Improve dataqueue resume suspended thread code. Thanks for @grissiom suggestion.

This commit is contained in:
armink 2016-10-31 15:08:55 +08:00
parent 0970cf03a4
commit 6fe47a9537
1 changed files with 1 additions and 6 deletions
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7
components/drivers/src/dataqueue.c
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@ -45,7 +45,6 @@ rt_data_queue_init(struct rt_data_queue *queue,
queue->size = size;
queue->lwm = lwm;
queue->waiting_lwm = RT_FALSE;
queue->get_index = 0;
queue->put_index = 0;
@ -80,8 +79,6 @@ rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
level = rt_hw_interrupt_disable();
while (queue->put_index - queue->get_index == queue->size)
{
queue->waiting_lwm = RT_TRUE;
/* queue is full */
if (timeout == 0)
{
@ -218,8 +215,7 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
queue->get_index += 1;
if ((queue->waiting_lwm == RT_TRUE) &&
(queue->put_index - queue->get_index) <= queue->lwm)
if ((queue->put_index - queue->get_index) <= queue->lwm)
{
/*
* there is at least one thread in suspended list
@ -241,7 +237,6 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
}
else
{
queue->waiting_lwm = RT_FALSE;
rt_hw_interrupt_enable(level);
}