PTHREAD_MUTEX_LOCK 236 magick/semaphore.c PTHREAD_MUTEX_LOCK(&semaphore_mutex); PTHREAD_MUTEX_LOCK 396 magick/semaphore.c PTHREAD_MUTEX_LOCK(&semaphore_mutex); PTHREAD_MUTEX_LOCK 528 magick/semaphore.c PTHREAD_MUTEX_LOCK(&semaphore_info->mutex);