Assertion: semaphore | /r/CapableOf | return error
Facets:
Source sentences:
text: Copies the value of the semaphore into the specified integer sem_wait() , sem_trywait() - Blocks while the semaphore is held by other processes or returns an error if the semaphore is held by another process
text: , - Blocks while the semaphore is held by other processes or returns an error if the semaphore is held by another process sem_post() -