* Lock to use the stream FDs since they are used between threads.
*
* This is nested INSIDE the consumer_data lock.
- * This is nested INSIDE the metadata cache lock.
* This is nested INSIDE the channel lock.
* This is nested INSIDE the channel timer lock.
+ * This is nested OUTSIDE the metadata cache lock.
* This is nested OUTSIDE consumer_relayd_sock_pair lock.
*/
pthread_mutex_t lock;