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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2019 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import sys
from typing import cast
from synapse.types import ISynapseReactor
try:
from twisted.internet.epollreactor import EPollReactor as Reactor
except ImportError:
from twisted.internet.pollreactor import ( # type: ignore[assignment]
PollReactor as Reactor,
)
from twisted.internet.main import installReactor
def make_reactor() -> ISynapseReactor:
"""
Instantiate and install a Twisted reactor suitable for testing (i.e. not the
default global one).
"""
reactor = Reactor()
if "twisted.internet.reactor" in sys.modules:
del sys.modules["twisted.internet.reactor"]
installReactor(reactor)
return cast(ISynapseReactor, reactor)
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