c49594a62f
The context manager in the executor fit only for the blocking executor. Even the dispatcher needs to run code before and after the application callback, eventlet and future executors have to run the pre/post code into the main thread and can run the callback into an other thread, and that force them to run __enter__ and __exit__ manually and deal the exception path. This change adds a helper object instead of the context manager. It is designed to be explicit on what must be executed before and after the callback and what can be done in a thread or not. All the executor code is now in the impl_pooledexecutor.py and use the futures "PoolExecutor" API. This use futurist to provide a eventlet and aioeventlet futures friendly object. Change-Id: I8cd7640f36beeda47560e3c82671bad3530e38d1
79 lines
2.8 KiB
Python
79 lines
2.8 KiB
Python
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# Copyright 2014 Red Hat, Inc.
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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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__all__ = [
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'list_opts'
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]
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import copy
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import itertools
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from oslo_messaging._drivers import amqp
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from oslo_messaging._drivers import base as drivers_base
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from oslo_messaging._drivers import impl_qpid
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from oslo_messaging._drivers import impl_rabbit
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from oslo_messaging._drivers import impl_zmq
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from oslo_messaging._drivers import matchmaker
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from oslo_messaging._drivers import matchmaker_redis
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from oslo_messaging._drivers import matchmaker_ring
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from oslo_messaging._drivers.protocols.amqp import opts as amqp_opts
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from oslo_messaging._executors import impl_pooledexecutor
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from oslo_messaging.notify import notifier
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from oslo_messaging.rpc import client
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from oslo_messaging import transport
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_global_opt_lists = [
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drivers_base.base_opts,
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impl_zmq.zmq_opts,
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matchmaker.matchmaker_opts,
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impl_pooledexecutor._pool_opts,
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notifier._notifier_opts,
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client._client_opts,
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transport._transport_opts,
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]
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_opts = [
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(None, list(itertools.chain(*_global_opt_lists))),
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('matchmaker_redis', matchmaker_redis.matchmaker_redis_opts),
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('matchmaker_ring', matchmaker_ring.matchmaker_opts),
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('oslo_messaging_amqp', amqp_opts.amqp1_opts),
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('oslo_messaging_rabbit', list(itertools.chain(amqp.amqp_opts,
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impl_rabbit.rabbit_opts))),
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('oslo_messaging_qpid', list(itertools.chain(amqp.amqp_opts,
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impl_qpid.qpid_opts)))
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]
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def list_opts():
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"""Return a list of oslo.config options available in the library.
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The returned list includes all oslo.config options which may be registered
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at runtime by the library.
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Each element of the list is a tuple. The first element is the name of the
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group under which the list of elements in the second element will be
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registered. A group name of None corresponds to the [DEFAULT] group in
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config files.
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This function is also discoverable via the 'oslo_messaging' entry point
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under the 'oslo.config.opts' namespace.
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The purpose of this is to allow tools like the Oslo sample config file
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generator to discover the options exposed to users by this library.
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:returns: a list of (group_name, opts) tuples
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"""
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return [(g, copy.deepcopy(o)) for g, o in _opts]
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