49     pthread_mutex_init(&m_lock, NULL);  in QCameraQueue()
70     pthread_mutex_init(&m_lock, NULL);  in QCameraQueue()
90     pthread_mutex_destroy(&m_lock);  in ~QCameraQueue()
104     pthread_mutex_lock(&m_lock);  in init()
106     pthread_mutex_unlock(&m_lock);  in init()
121     pthread_mutex_lock(&m_lock);  in isEmpty()
125     pthread_mutex_unlock(&m_lock);  in isEmpty()
152     pthread_mutex_lock(&m_lock);  in enqueue()
161     pthread_mutex_unlock(&m_lock);  in enqueue()
189     pthread_mutex_lock(&m_lock);  in enqueueWithPriority()
204     pthread_mutex_unlock(&m_lock);  in enqueueWithPriority()
226     pthread_mutex_lock(&m_lock);  in dequeue()
240     pthread_mutex_unlock(&m_lock);  in dequeue()
265     pthread_mutex_lock(&m_lock);  in flush()
288     pthread_mutex_unlock(&m_lock);  in flush()
311     pthread_mutex_lock(&m_lock);  in flushNodes()
333     pthread_mutex_unlock(&m_lock);  in flushNodes()
356     pthread_mutex_lock(&m_lock);  in flushNodes()
378     pthread_mutex_unlock(&m_lock);  in flushNodes()