40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import collections
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Message = collections.namedtuple('Message', ['name', 'data'])
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class MessageQueue(object):
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def __init__(self, name):
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self.name = name
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self._queue = collections.deque()
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def send(self, name, data=None):
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self._queue.append(Message(name, data))
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def send_priority(self, name, data=None):
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self._queue.appendleft(Message(name, data))
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def get(self):
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try:
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return self._queue.popleft()
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except IndexError:
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return None
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def clear(self):
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self._queue.clear()
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