Pops data from the @queue. If the queue is empty, blocks for @timeout microseconds, or until data becomes available.
If no data is received before the timeout, %NULL is returned.
This function must be called while holding the @queue's lock.
the number of microseconds to wait
data from the queue or %NULL, when no data is received before the timeout.
See Implementation
Pops data from the @queue. If the queue is empty, blocks for @timeout microseconds, or until data becomes available.
If no data is received before the timeout, %NULL is returned.
This function must be called while holding the @queue's lock.