54 lines
1.5 KiB
Python
54 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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from oslo_config import cfg
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import six
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_pool_opts = [
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cfg.IntOpt('rpc_thread_pool_size',
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default=64,
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help='Size of RPC thread pool.'),
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]
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@six.add_metaclass(abc.ABCMeta)
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class ExecutorBase(object):
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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):
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"Wait until the executor has stopped polling."
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class PooledExecutorBase(ExecutorBase):
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"""An executor that uses a rpc thread pool of a given size."""
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def __init__(self, conf, listener, callback):
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super(PooledExecutorBase, self).__init__(conf, listener, callback)
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self.conf.register_opts(_pool_opts)
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