alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-09-24 17:27:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

FreeRTOS: Add xQueueGetMutexHolder support

Browse Source 
Enables it as a config option, but there's no overhead at all if the
function is not called anywhere.
This commit is contained in:
Angus Gratton
2016-08-24 18:10:52 +08:00
parent 4b281af0f7
commit f5715ac28d
2 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
components/freertos/queue.c
View File

@@ -483,14 +483,15 @@ int8_t *pcAllocatedBuffer;
void* xQueueGetMutexHolder( QueueHandle_t xSemaphore )
{
void *pxReturn;
Queue_t * const pxQueue = ( Queue_t * ) xSemaphore;
void *pxReturn;
/* This function is called by xSemaphoreGetMutexHolder(), and should not
be called directly. Note: This is a good way of determining if the
calling task is the mutex holder, but not a good way of determining the
identity of the mutex holder, as the holder may change between the
following critical section exiting and the function returning. */
taskENTER_CRITICAL();
taskENTER_CRITICAL(&pxQueue->mux);
{
if( ( ( Queue_t * ) xSemaphore )->uxQueueType == queueQUEUE_IS_MUTEX )
{
@@ -501,7 +502,7 @@ int8_t *pcAllocatedBuffer;
pxReturn = NULL;
}
}
taskEXIT_CRITICAL();
taskEXIT_CRITICAL(&pxQueue->mux);
return pxReturn;
} /*lint !e818 xSemaphore cannot be a pointer to const because it is a typedef. */