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Querying the count value of a counting semaphore

Posted by jim-frenzel on October 27, 2015

I am running FreeRTOS version 8.2.2 and am wondering why there is no function provided to get the count value of a counting semaphore. While I did find a workaround - cast the handle as a queue handle and use uxQueueMessages Waiting() - it seems like having a dedicated function would be worthwhile. Any thoughts?


Querying the count value of a counting semaphore

Posted by rtel on October 27, 2015

Any of the queue functions can be used on semahores too. I can add a "get current count" macro that calls the queue function.

Regards.


Querying the count value of a counting semaphore

Posted by jim-frenzel on October 27, 2015

I think that would be great - particularly if it found its way into the documentation. :-)


Querying the count value of a counting semaphore

Posted by rtel on October 28, 2015

I have added the line:

define xSemaphoreGetCount( xSemaphore ) uxQueueMessagesWaiting( (

QueueHandle_t ) ( xSemaphore ) )

but not checked it in yet. It will get checked in after it has been tested.

Regards.


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