Mercurial > libervia-backend
view sat/tools/async_trigger.py @ 2901:f6b0088ce247
code (xmpp): store version after roster item update + fix item removal:
roster version is now stored after roster item has been added or removed. This way if something interrupting the process happens, former item update will be received and roster should be updated correctly.
Roster item removal was crashing because `load()` is not used (local PersistentDict cache is then not updated, and the key to remove is missing there). The exception is now catched and ignored to avoid loading the data only to remove an item.
author | Goffi <goffi@goffi.org> |
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date | Wed, 10 Apr 2019 21:04:41 +0200 |
parents | 003b8b4b56a7 |
children | ab2696e34d29 |
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#!/usr/bin/env python2 # -*- coding: utf-8 -*- # SAT: a jabber client # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org) # 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. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. """Misc usefull classes""" from sat.tools import trigger as sync_trigger from twisted.internet import defer class TriggerManager(sync_trigger.TriggerManager): """This is a TriggerManager with an new asyncPoint method""" @defer.inlineCallbacks def asyncPoint(self, point_name, *args, **kwargs): """This put a trigger point with potentially async Deferred All the triggers for that point will be run @param point_name: name of the trigger point @param *args: args to transmit to trigger @param *kwargs: kwargs to transmit to trigger if "triggers_no_cancel" is present, it will be popped out when set to True, this argument don't let triggers stop the workflow @return D(bool): True if the action must be continued, False else """ if point_name not in self.__triggers: defer.returnValue(True) can_cancel = not kwargs.pop('triggers_no_cancel', False) for priority, trigger in self.__triggers[point_name]: try: cont = yield trigger(*args, **kwargs) if can_cancel and not cont: defer.returnValue(False) except sync_trigger.SkipOtherTriggers: break defer.returnValue(True)