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Add first version of alternative API.

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This commit is contained in:
Richard Barry 2007-12-02 18:37:43 +00:00
parent b6d2b739f3
commit 8603259d40
17 changed files with 2308 additions and 120 deletions
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24
Source/include/queue.h
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@ -1159,6 +1159,30 @@ signed portBASE_TYPE xQueueGenericSendFromISR( xQueueHandle pxQueue, const void
*/
signed portBASE_TYPE xQueueReceiveFromISR( xQueueHandle pxQueue, const void * const pvBuffer, signed portBASE_TYPE *pxTaskWoken );
/*
* xQueueAltGenericSend() is a light weight version of xQueueGenericSend().
* Likewise xQueueAltGenericReceive() is a light weight version of
* xQueueGenericReceive().
*
* The source code that implements the light weight (fast) API is much
* simpler because it executes everything from within a critical section.
* This is the approach taken by many other RTOSes, but FreeRTOS.org has the
* fully featured API as an alternative. The fully featured API has more
* complex code that takes longer to execute, but makes much less use of
* critical sections. Therefore the light weight API sacrifices interrupt
* responsiveness to gain execution speed, whereas the fully featured API
* sacrifices execution speed to ensure better interrupt responsiveness.
*/
signed portBASE_TYPE xQueueAltGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition );
signed portBASE_TYPE xQueueAltGenericReceive( xQueueHandle pxQueue, const void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking );
/*
* The light weight versions of the fully featured macros.
*/
#define xQueueAltSendToFront( xQueue, pvItemToQueue, xTicksToWait ) xQueueAltGenericSend( xQueue, pvItemToQueue, xTicksToWait, queueSEND_TO_FRONT )
#define xQueueAltSendToBack( xQueue, pvItemToQueue, xTicksToWait ) xQueueAltGenericSend( xQueue, pvItemToQueue, xTicksToWait, queueSEND_TO_BACK )
#define xQueueAltReceive( xQueue, pvBuffer, xTicksToWait ) xQueueAltGenericReceive( xQueue, pvBuffer, xTicksToWait, pdFALSE )
#define xQueueAltPeek( xQueue, pvBuffer, xTicksToWait ) xQueueAltGenericReceive( xQueue, pvBuffer, xTicksToWait, pdTRUE )
/*
* The functions defined above are for passing data to and from tasks. The