e86fb9dcce
Resolves the following warnings seen in the likes of nova:
DeprecationWarning: Please provide `is_available()` function in your
custom Eventlet hub <module 'oslo_service' from
'../oslo_service/__init__.py'>."
It must return bool: whether hub supports current platform. See
eventlet/hubs/{epoll,kqueue} for example.
Since we're simply taking the default hub provided by eventlet and
overriding a single attribute, we will always have support so set the
attribute.
Change-Id: I219cf652526802b8212fe8a8f6c499e9aa24a3cf
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
# 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 os
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import eventlet.patcher
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from oslo_log import log as logging
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time = eventlet.patcher.original('time')
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LOG = logging.getLogger(__name__)
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# TODO(bnemec): When we have a minimum dependency on a version of eventlet
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# that uses monotonic by default, remove this monkey patching.
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if hasattr(time, 'monotonic'):
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# Use builtin monotonic clock, Python 3.3+
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_monotonic = time.monotonic
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else:
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import monotonic
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_monotonic = monotonic.monotonic
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def service_hub():
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# NOTE(dims): Add a custom impl for EVENTLET_HUB, so we can
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# override the clock used in the eventlet hubs. The default
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# uses time.time() and we need to use a monotonic timer
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# to ensure that things like loopingcall work properly.
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hub = eventlet.hubs.get_default_hub().Hub()
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hub.clock = _monotonic
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# get_default_hub() will return a hub that is supported on this platform
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hub.is_available = lambda: True
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return hub
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os.environ['EVENTLET_HUB'] = 'oslo_service:service_hub'
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