7a528035b8
Re-add the Singleton class which were removed from the base services
module after introducing the backend mechanism[1].
[1] 861e8d6677
Closes-Bug: #2099955
Change-Id: I8849488df9b4db1d4af38b54444be4261b541e0c
63 lines
2.4 KiB
Python
63 lines
2.4 KiB
Python
# Copyright (C) 2024 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_service.backend.base import BaseBackend
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from oslo_service.backend.eventlet import loopingcall
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from oslo_service.backend.eventlet import service
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from oslo_service.backend.eventlet import threadgroup
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class EventletBackend(BaseBackend):
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"""Backend implementation for Eventlet."""
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@staticmethod
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def get_service_components():
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"""Return the components provided by the Eventlet backend."""
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return {
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# Classes
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"ServiceBase": service.ServiceBase,
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"ServiceLauncher": service.ServiceLauncher,
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"Launcher": service.Launcher,
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"ProcessLauncher": service.ProcessLauncher,
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"Service": service.Service,
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"Services": service.Services,
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"ServiceWrapper": service.ServiceWrapper,
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"SignalHandler": service.SignalHandler,
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"SignalExit": service.SignalExit,
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"Singleton": service.Singleton,
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# Looping call-related classes
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"LoopingCallBase": loopingcall.LoopingCallBase,
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"LoopingCallDone": loopingcall.LoopingCallDone,
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"LoopingCallTimeOut": loopingcall.LoopingCallTimeOut,
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"FixedIntervalLoopingCall": loopingcall.FixedIntervalLoopingCall,
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"FixedIntervalWithTimeoutLoopingCall":
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loopingcall.FixedIntervalWithTimeoutLoopingCall,
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"DynamicLoopingCall": loopingcall.DynamicLoopingCall,
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"BackOffLoopingCall": loopingcall.BackOffLoopingCall,
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"RetryDecorator": loopingcall.RetryDecorator,
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# Threadgroup call-related classes
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"ThreadGroup": threadgroup.ThreadGroup,
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"Thread": threadgroup.Thread,
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# Functions
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"launch": service.launch,
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"_is_daemon": service._is_daemon,
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"_is_sighup_and_daemon": service._is_sighup_and_daemon,
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}
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