Retrieve a value from the front of the queue.
T must be
Blocks the calling thread until there is at least one item on the
queue. Removes the front item from the queue and returns it. If
an exception is thrown by the move constructor of
T whilst retrieving the value
then that item is lost.
The item removed from the queue
Any exception thrown by the move constructor of
has been poisoned.
Only one thread may call
try_pop() on a particular instance of
jss::mpsc_fifo concurrently. If two
try_pop() on the same instance and neither
call happens-before the other then the behaviour
A call to
a call to
that retrieves the value pushed.