NAME sem_wait, sem_timedwait, sem_trywait - lock a semaphore LIBRARY POSIX threads library ( libpthread ... sem_wait(sem_t * sem ); int sem_trywait(sem_t * sem ); int sem_timedwait…NAME sem_wait, sem_timedwait, sem_trywait - lock a semaphore LIBRARY POSIX threads library ( libpthread ... sem_wait(sem_t * sem ); int sem_trywait(sem_t * sem ); int sem_timedwait…NAME sem_wait, sem_timedwait, sem_trywait - lock a semaphore LIBRARY POSIX threads library ( libpthread ... sem_wait(sem_t * sem ); int sem_trywait(sem_t * sem ); int sem_timedwait…