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# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
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# contributor license agreements. See the NOTICE file distributed with |
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# this work for additional information regarding copyright ownership. |
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# The ASF licenses this file to You under the Apache License, Version 2.0 |
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# (the "License"); you may not use this file except in compliance with |
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# the License. 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 implied. |
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# See the License for the specific language governing permissions and |
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# |
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""" |
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Module for performing eventlet and other monkey patching. |
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""" |
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from __future__ import absolute_import |
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import sys |
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__all__ = [ |
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'monkey_patch', |
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'is_use_debugger_flag_provided' |
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] |
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USE_DEBUGGER_FLAG = '--use-debugger' |
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PARENT_ARGS_FLAG = '--parent-args=' |
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def monkey_patch(): |
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""" |
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Function which performs eventlet monkey patching and also takes into account "--use-debugger" |
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argument in the command line arguments. |
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If this argument is found, no monkey patching is performed for the thread module. This allows |
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user to use remote debuggers. |
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""" |
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import eventlet |
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patch_thread = not is_use_debugger_flag_provided() |
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eventlet.monkey_patch(os=True, select=True, socket=True, thread=patch_thread, time=True) |
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def is_use_debugger_flag_provided(): |
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# 1. Check sys.argv directly |
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if USE_DEBUGGER_FLAG in sys.argv: |
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return True |
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# 2. Check "parent-args" arguments. This is used for spawned processes such as sensors and |
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# Python runner actions |
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for arg in sys.argv: |
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if arg.startswith(PARENT_ARGS_FLAG) and USE_DEBUGGER_FLAG in arg: |
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return True |
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return False |
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