def WaitUntilAllPreviousMessagesHaveBeenHandled(self):
lock: threading.Lock = threading.Lock()
lock.acquire()
# send dummy message to clear out pipe
mesg = zmessage.Message(None, zmessage.LowestPriority(),
lambda _: lock.release(), None)
self.SendMessage(mesg)
# wait until semaphore is released by callback
lock.acquire()
def Terminate(self):
"""
Terminate shuts down the driver object.
"""
lock = threading.Lock()
lock.acquire()
def cb(_):
self._terminate = True
lock.release()
# send listeners signal to shutdown
self._in_queue.put((time.time(), None))
self.SendMessage(
zmessage.Message(None, zmessage.LowestPriority(), cb, None))
lock.acquire()
logging.info("Driver terminated")