123a0371c4
To make sure that waiting can be limited by some value, and will not block forever add and use a timeout keyword argument to the wait method so that waiting can be limited to some time duration. Change-Id: I2529e7bdc2ad449ab9de935c6bc4c6ea144e4f87
48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
# Copyright 2013 New Dream Network, LLC (DreamHost)
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#
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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 abc
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import six
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@six.add_metaclass(abc.ABCMeta)
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class ExecutorBase(object):
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# Executor can override how we run the application callback
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_executor_callback = None
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def __init__(self, conf, listener, dispatcher):
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self.conf = conf
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self.listener = listener
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self.dispatcher = dispatcher
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@abc.abstractmethod
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def start(self):
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"""Start polling for incoming messages."""
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@abc.abstractmethod
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def stop(self):
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"""Stop polling for messages."""
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@abc.abstractmethod
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def wait(self, timeout=None):
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"""Wait until the executor has stopped polling.
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If a timeout is provided, and it is not ``None`` then this method will
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wait up to that amount of time for its components to finish, if not
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all components finish in the alloted time, then false will be returned
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otherwise true will be returned.
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"""
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