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Add utilities that can be used to query a queue from within an ISR.

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This commit is contained in:
Richard Barry 2008-03-23 15:58:27 +00:00
parent 58905b6fb4
commit 5ebd39bfc9
1 changed files with 10 additions and 1 deletions
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11
Source/include/queue.h
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@ -911,7 +911,6 @@ void vQueueDelete( xQueueHandle xQueue );
*/
#define xQueueSendToBackFromISR( pxQueue, pvItemToQueue, xTaskPreviouslyWoken ) xQueueGenericSendFromISR( pxQueue, pvItemToQueue, xTaskPreviouslyWoken, queueSEND_TO_BACK )
/**
* queue. h
* <pre>
@ -1165,6 +1164,15 @@ signed portBASE_TYPE xQueueGenericSendFromISR( xQueueHandle pxQueue, const void
*/
signed portBASE_TYPE xQueueReceiveFromISR( xQueueHandle pxQueue, const void * const pvBuffer, signed portBASE_TYPE *pxTaskWoken );
/*
* Utilities to query queue that are safe to use from an ISR. These utilities
* should be used only from witin an ISR, or within a critical section.
*/
signed portBASE_TYPE xQueueIsQueueEmptyFromISR( const xQueueHandle pxQueue );
signed portBASE_TYPE xQueueIsQueueFullFromISR( const xQueueHandle pxQueue );
signed portBASE_TYPE xQueueMessagesWaitingFromISR( const xQueueHandle pxQueue, unsigned portBASE_TYPE *puxMessagesWaiting );
/*
* xQueueAltGenericSend() is an alternative version of xQueueGenericSend().
* Likewise xQueueAltGenericReceive() is an alternative version of
@ -1214,6 +1222,7 @@ xQueueHandle xQueueCreateCountingSemaphore( unsigned portBASE_TYPE uxCountValue,
portBASE_TYPE xQueueTakeMutexRecursive( xQueueHandle xMutex, portTickType xBlockTime );
portBASE_TYPE xQueueGiveMutexRecursive( xQueueHandle xMutex );
#ifdef __cplusplus
}
#endif