Source code for univention.admin.rest.shared_memory

#!/usr/bin/python3
# -*- coding: utf-8 -*-
#
# Copyright 2021-2022 Univention GmbH
#
# https://www.univention.de/
#
# All rights reserved.
#
# The source code of this program is made available
# under the terms of the GNU Affero General Public License version 3
# (GNU AGPL V3) as published by the Free Software Foundation.
#
# Binary versions of this program provided by Univention to you as
# well as other copyrighted, protected or trademarked materials like
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# the program is provided in the hope that it will be useful,
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# License with the Debian GNU/Linux or Univention distribution in file
# /usr/share/common-licenses/AGPL-3; if not, see
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import json
from multiprocessing import managers

from setproctitle import getproctitle, setproctitle

proctitle = getproctitle()


class _SharedMemory(managers.SyncManager):

	children = {}
	queue = {}
	search_sessions = {}
	authenticated = {}

	def start(self, *args, **kwargs):
		setproctitle(proctitle + '   # multiprocessing manager')
		try:
			super(_SharedMemory, self).start(*args, **kwargs)
		finally:
			setproctitle(proctitle)

		# we must create the parent dictionary instance before forking but after python importing
		self.children = self.dict()
		self.queue = self.dict()
		self.search_sessions = self.dict()
		self.authenticated = self.dict()


shared_memory = _SharedMemory()


[docs]class JsonEncoder(json.JSONEncoder):
[docs] def default(self, o): if isinstance(o, managers.DictProxy): return dict(o) if isinstance(o, managers.ListProxy): return list(o) raise TypeError('Object of type {} is not JSON serializable'.format(type(o).__name__))