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Semaphores
[API]

TIP: ‘Task Notifications’ can provide a light weight alternative to semaphores in many situations

Modules

• xSemaphoreCreateBinary
• xSemaphoreCreateBinaryStatic
• vSemaphoreCreateBinary [use xSemaphoreCreateBinary() for new designs]
• xSemaphoreCreateCounting
• xSemaphoreCreateCountingStatic
• xSemaphoreCreateMutex
• xSemaphoreCreateMutexStatic
• xSemaphoreCreateRecursiveMutex
• xSemaphoreCreateRecursiveMutexStatic
• vSemaphoreDelete
• xSemaphoreGetMutexHolder
• xSemaphoreTake
• xSemaphoreTakeFromISR
• xSemaphoreTakeRecursive
• xSemaphoreGive
• xSemaphoreGiveRecursive
• xSemaphoreGiveFromISR
• uxSemaphoreGetCount

vSemaphoreDelete

semphr.h

void vSemaphoreDelete( SemaphoreHandle_t xSemaphore );

Deletes a semaphore, including mutex type semaphores and recursive semaphores.

Do not delete a semaphore that has tasks blocked on it (tasks that are in the Blocked state waiting for the semaphore to become available).

Parameters:

xSemaphore

The handle of the semaphore being deleted.