34   pthread_mutex_t lock;  member
49   pthread_mutex_init(&ret->lock, NULL);  in fixed_queue_new()
84   pthread_mutex_destroy(&queue->lock);  in fixed_queue_free()
91   pthread_mutex_lock(&queue->lock);  in fixed_queue_is_empty()
93   pthread_mutex_unlock(&queue->lock);  in fixed_queue_is_empty()
110   pthread_mutex_lock(&queue->lock);  in fixed_queue_enqueue()
112   pthread_mutex_unlock(&queue->lock);  in fixed_queue_enqueue()
122   pthread_mutex_lock(&queue->lock);  in fixed_queue_dequeue()
125   pthread_mutex_unlock(&queue->lock);  in fixed_queue_dequeue()
139   pthread_mutex_lock(&queue->lock);  in fixed_queue_try_enqueue()
141   pthread_mutex_unlock(&queue->lock);  in fixed_queue_try_enqueue()
153   pthread_mutex_lock(&queue->lock);  in fixed_queue_try_dequeue()
156   pthread_mutex_unlock(&queue->lock);  in fixed_queue_try_dequeue()
166   pthread_mutex_lock(&queue->lock);  in fixed_queue_try_peek()
169   pthread_mutex_unlock(&queue->lock);  in fixed_queue_try_peek()