78     pthread_mutex_lock(&mutex);  in add_at_head()
89     pthread_mutex_unlock(&mutex);  in add_at_head()
96     pthread_mutex_lock(&mutex);  in add_at_tail()
107     pthread_mutex_unlock(&mutex);  in add_at_tail()
145     pthread_mutex_lock(&mutex);  in del_at_head()
151     pthread_mutex_unlock(&mutex);  in del_at_head()
158     pthread_mutex_lock(&mutex);  in del_at_tail()
164     pthread_mutex_unlock(&mutex);  in del_at_tail()
170     pthread_mutex_lock(&mutex);  in list_is_empty()
172     pthread_mutex_unlock(&mutex);  in list_is_empty()
178     pthread_mutex_lock(&mutex);  in list_size()
180     pthread_mutex_unlock(&mutex);  in list_size()
213     pthread_mutex_lock(&mutex);  in flush()
225     pthread_mutex_unlock(&mutex);  in flush()
237     pthread_mutex_init(&mutex, &attr);  in rk_list()
254     pthread_mutex_destroy(&mutex);  in ~rk_list()