IPC@CHIP® RTOS-LNX – API Documentation

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◆ RTX_Signal_Sem()

RTX_EC RTX_Signal_Sem ( RTX_ID  semID)

This API signals a counting semaphore.

The resource will immediately be given to the task (if any) which is waiting at the head of this semaphore's wait queue. Task rescheduling occurs immediately if the waiting task is higher than the caller of this API.

This method is used to release access to a counting semaphore after a task has acquired the semaphore through a call to RTX_Get_Sem(), RTX_Sem_Wait(), RTX_Sem_Timeout() or RTX_Wait_Sem_Priority().

semIDSemaphore handle
Zero on success, else error code.
See also

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