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Merge pull request #5395 from jhbdream/note

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guo 2021-12-17 09:56:45 +08:00 committed by GitHub
parent 7733999c0c eda0df469e
commit 7429fb26c0
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1 changed files with 3 additions and 3 deletions
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src/ipc.c
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@ -874,10 +874,10 @@ RTM_EXPORT(rt_mutex_delete);
* @brief This function will take a mutex, if the mutex is unavailable, the thread shall wait for
* the mutex up to a specified time.
*
* @note When this function is called, the count value of the sem->value will decrease 1 until it is equal to 0.
* When the sem->value is 0, it means that the mutex is unavailable. At this time, it will suspend the
* @note When this function is called, the count value of the mutex->value will decrease 1 until it is equal to 0.
* When the mutex->value is 0, it means that the mutex is unavailable. At this time, it will suspend the
* thread preparing to take the mutex.
* On the contrary, the rt_sem_release() function will increase the count value of sem->value by 1 each time.
* On the contrary, the rt_mutex_release() function will increase the count value of mutex->value by 1 each time.
*
* @see rt_mutex_trytake()
*