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rt-thread
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f62bd037
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体验新版 GitCode,发现更多精彩内容 >>
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f62bd037
编写于
12月 10, 2021
作者:
O
ousugo
提交者:
Bernard Xiong
12月 14, 2021
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差异文件
add waitqueue.c function annotation
上级
92cf02a3
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1
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1 changed file
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+45
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components/drivers/src/waitqueue.c
components/drivers/src/waitqueue.c
+45
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未找到文件。
components/drivers/src/waitqueue.c
浏览文件 @
f62bd037
...
...
@@ -15,6 +15,13 @@
#include <rtdevice.h>
#include <rtservice.h>
/**
* @brief This function will insert a node to the wait queue.
*
* @param queue is a pointer to the wait queue.
*
* @param node is a pointer to the node to be inserted.
*/
void
rt_wqueue_add
(
rt_wqueue_t
*
queue
,
struct
rt_wqueue_node
*
node
)
{
rt_base_t
level
;
...
...
@@ -24,6 +31,13 @@ void rt_wqueue_add(rt_wqueue_t *queue, struct rt_wqueue_node *node)
rt_hw_interrupt_enable
(
level
);
}
/**
* @brief This function will remove a node from the wait queue.
*
* @param queue is a pointer to the wait queue.
*
* @param node is a pointer to the node to be removed.
*/
void
rt_wqueue_remove
(
struct
rt_wqueue_node
*
node
)
{
rt_base_t
level
;
...
...
@@ -33,11 +47,30 @@ void rt_wqueue_remove(struct rt_wqueue_node *node)
rt_hw_interrupt_enable
(
level
);
}
/**
* @brief This function is the default wakeup function, but it actually don't do anything,
* just always return 0, user should define their own wakeup function.
*
* @param queue is a pointer to the wait queue.
*
* @param key is the wakeup condition.
*
* @return always return 0.
*/
int
__wqueue_default_wake
(
struct
rt_wqueue_node
*
wait
,
void
*
key
)
{
return
0
;
}
/**
* @brief This function will wake up a pending thread on the specified waiting queue that meets the conditions.
*
* @param queue is a pointer to the wait queue.
*
* @param key is the wakeup conditions, but it is not effective now, because
* default wakeup function always return 0.
* If user wants to use it, user should define their own wakeup function.
*/
void
rt_wqueue_wakeup
(
rt_wqueue_t
*
queue
,
void
*
key
)
{
rt_base_t
level
;
...
...
@@ -74,6 +107,18 @@ void rt_wqueue_wakeup(rt_wqueue_t *queue, void *key)
rt_schedule
();
}
/**
* @brief This function will join a thread to the specified waiting queue, the thread will holds a wait or
* timeout return on the specified wait queue.
*
* @param queue is a pointer to the wait queue.
*
* @param condition is parameters compatible with POSIX standard interface (currently meaningless, just pass in 0).
*
* @param msec is the timeout value, unit is millisecond.
*
* @return Return 0 if the thread is woken up.
*/
int
rt_wqueue_wait
(
rt_wqueue_t
*
queue
,
int
condition
,
int
msec
)
{
int
tick
;
...
...
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