sem_release Release a semaphore &reftitle.description; boolsem_release resourcesem_identifier sem_release releases the semaphore if it is currently acquired by the calling process, otherwise a warning is generated. After releasing the semaphore, sem_acquire may be called to re-acquire it. &reftitle.parameters; sem_identifier A Semaphore resource handle as returned by sem_get. &reftitle.returnvalues; &return.success; &reftitle.seealso; sem_get sem_acquire