Merge "Drop custom implementation of EVENTLET_HUB"

oslo_service/__init__.py

-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-import os
-
-import eventlet.patcher
-
-
-time = eventlet.patcher.original('time')
-
-
-def service_hub():
-    # NOTE(dims): Add a custom impl for EVENTLET_HUB, so we can
-    # override the clock used in the eventlet hubs. The default
-    # uses time.time() and we need to use a monotonic timer
-    # to ensure that things like loopingcall work properly.
-    hub = eventlet.hubs.get_default_hub().Hub()
-    hub.clock = time.monotonic
-    # get_default_hub() will return a hub that is supported on this platform
-    hub.is_available = lambda: True
-    return hub
-
-
-os.environ['EVENTLET_HUB'] = 'oslo_service:service_hub'