364f365bc7
The reactor is now set in the launcher, as it is the first script to be loaded. This should avoid race conditions when some Twisted or libervia packages are imported and end up importing `twisted.internet.reactor`, which installs the default reactor before the AsyncIO one. The AsyncIO reactor is still set in `twisted.plugin.libervia_backend_plugin` (but it no longer fails if already set), in case the backend is started as a plugin (although this is not recommended anyway)
91 lines
2.9 KiB
Python
91 lines
2.9 KiB
Python
#!/usr/bin/env python3
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# Libervia: an XMPP client
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# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero 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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# This program 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 Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from twisted.internet.error import ReactorAlreadyInstalledError
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from zope.interface import implementer
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from twisted.python import usage
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from twisted.plugin import IPlugin
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from twisted.application.service import IServiceMaker
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# XXX: We need to configure logs before any log method is used, so here is the best place.
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from libervia.backend.core import exceptions
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from libervia.backend.core.constants import Const as C
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from libervia.backend.core.i18n import _
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from sat_tmp.wokkel import install as install_wokkel_patches
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install_wokkel_patches()
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def initialise(options):
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"""Method to initialise global modules"""
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# XXX: We need to configure logs before any log method is used, so here is the best
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# place.
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from libervia.backend.core import log_config
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log_config.libervia_configure(C.LOG_BACKEND_TWISTED, C, backend_data=options)
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class Options(usage.Options):
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optParameters = []
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@implementer(IPlugin, IServiceMaker)
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class LiberviaMaker:
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tapname = C.APP_NAME_FILE
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description = _("%s XMPP client backend") % C.APP_NAME_FULL
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options = Options
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def set_debugger(self):
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from twisted.internet import defer
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if defer.Deferred.debug:
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# if we are in debug mode, we want to use ipdb instead of pdb
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try:
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import ipdb
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import pdb
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pdb.set_trace = ipdb.set_trace
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pdb.post_mortem = ipdb.post_mortem
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except ImportError:
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pass
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def makeService(self, options):
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from twisted.internet import asyncioreactor
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try:
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asyncioreactor.install()
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except ReactorAlreadyInstalledError as e:
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from twisted.internet import reactor
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if not isinstance(reactor, asyncioreactor.AsyncioSelectorReactor):
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raise exceptions.InternalError(
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f"Wrong reactor installed: {reactor}"
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) from e
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self.set_debugger()
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# XXX: Libervia must be imported after log configuration,
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# because it write stuff to logs
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initialise(options.parent)
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from libervia.backend.core.main import LiberviaBackend
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return LiberviaBackend()
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serviceMaker = LiberviaMaker()
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