The documentation says that is possible to poll the state of a semaphore: “A block time of zero can be used to poll the semaphore” in the xSemaphoreTake section.
I have a hard time making this work.
Polling a semaphore should not change it in any way, or am I confused by the idea of “polling” and “peeking”?
I can see in semphr.h that the xSemaphore cannot set the “just peeking” boolean to true.
#define xSemaphoreTake( xSemaphore, xBlockTime ) xQueueGenericReceive( ( xQueueHandle ) xSemaphore, NULL, xBlockTime, pdFALSE )
Please enlighten me…