def prepend(self, x):
# NOTE: this is heavy, use judiciously
if self.shut:
raise e_exc.QueueShutdown()
with self.lock:
self.items.insert(0, x)
self.event.set()
def __iter__(self):
if self.shut:
raise e_exc.QueueShutdown()
try:
while True:
ret = self.get()
yield ret
except e_exc.QueueShutdown as e:
pass
def get(self, timeout=None):
self.last = time.time()
with self.lock:
if self.items:
return self._get_items()
if self.shut:
raise e_exc.QueueShutdown()
# Clear the event so we can wait...
self.event.clear()
self.event.wait(timeout=timeout)
if self.shut:
raise e_exc.QueueShutdown()
with self.lock:
self.last = time.time()
if not self.items and self.shut:
raise e_exc.QueueShutdown()
return self._get_items()
def get(self, timeout=None):
start = time.time()
self.last = start
while True:
if self.shut:
raise e_exc.QueueShutdown()
with self.lock:
if self.items:
return self.items.popleft()
# Clear the event so we can wait...
self.event.clear()
deltat = None
if timeout:
deltat = max(0, timeout - (time.time() - start))
if not self.event.wait(timeout=deltat):
return None
def extend(self, x):
if self.shut:
raise e_exc.QueueShutdown()
with self.lock:
self.items.extend(x)
self.event.set()
def prepend(self, x):
if self.shut:
raise e_exc.QueueShutdown()
with self.lock:
self.items.appendleft(x)
self.event.set()
def put(self, item):
if self.shut:
raise e_exc.QueueShutdown()
self.append(item)