61     pthread_mutex_t lock;  member
122     pthread_mutex_t *lock = &item_locks[hv & hashmask(item_lock_hashpower)];  in item_trylock()  local
123     if (pthread_mutex_trylock(lock) == 0) {  in item_trylock()
124         return lock;  in item_trylock()
129 void item_trylock_unlock(void *lock) {  in item_trylock_unlock()  argument
130     mutex_unlock((pthread_mutex_t *) lock);  in item_trylock_unlock()
274     pthread_mutex_init(&cq->lock, NULL);  in cq_init()
291     pthread_mutex_lock(&cq->lock);  in cq_pop()
296     pthread_mutex_unlock(&cq->lock);  in cq_pop()
305     pthread_mutex_lock(&cq->lock);  in cq_push()
307     pthread_mutex_unlock(&cq->lock);  in cq_push()