Append the specified value to the back of this queue, blocking until either space is available ‐ if necessary ‐ or the queue is disabled. Return 0 on success, and a nonzero value if the queue is disabled.
Append the specified value to the back of this queue, blocking until either space is available ‐ if necessary ‐ or the queue is disabled. Return 0 on success, and a nonzero value if the queue is disabled.