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45 lines
1.9 KiB
Python
45 lines
1.9 KiB
Python
# (c) 2016 - Red Hat, Inc. <info@ansible.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import annotations
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import multiprocessing.synchronize
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from multiprocessing import Lock
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from ansible.module_utils.facts.system.pkg_mgr import PKG_MGRS
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if 'action_write_locks' not in globals():
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# Do not initialize this more than once because it seems to bash
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# the existing one. multiprocessing must be reloading the module
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# when it forks?
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action_write_locks: dict[str | None, multiprocessing.synchronize.Lock] = dict()
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# Below is a Lock for use when we weren't expecting a named module. It gets used when an action
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# plugin invokes a module whose name does not match with the action's name. Slightly less
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# efficient as all processes with unexpected module names will wait on this lock
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action_write_locks[None] = Lock()
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# These plugins are known to be called directly by action plugins with names differing from the
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# action plugin name. We precreate them here as an optimization.
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# If a list of service managers is created in the future we can do the same for them.
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mods = set(p['name'] for p in PKG_MGRS)
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mods.update(('copy', 'file', 'setup', 'slurp', 'stat'))
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for mod_name in mods:
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action_write_locks[mod_name] = Lock()
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