úÎúº     Safe9=K Block until a queue is empty.     Safe9=K     Safe9=K         stm-queue-extras-0.2.0.0Control.Concurrent.STM.Queue#Control.Concurrent.STM.BoundedQueue%Control.Concurrent.STM.CloseableQueueQueue QueueValue readQueue tryReadQueue peekQueue tryPeekQueue writeQueue unGetQueue isEmptyQueueawaitQueueEmpty BoundedQueue tryWriteQueue isFullQueueCloseableQueue closeQueue isClosedQueue$fQueueTBMQueue$fQueueTMQueue$fQueueTBQueue $fQueueTQueue$fBoundedQueueTBMQueue$fBoundedQueueTBQueue$fCloseableQueueTBMQueue$fCloseableQueueTMQueue