Mercurial > libervia-backend

annotate sat_frontends/tools/host_listener.py @ 3013:860c550028d6

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memory (sqlite): properly wait for messages to be writen in database: the deferreds of the queries writing message to databases where not gathered and returned, so the caller was not waiting for them to continue its workflow. This was resulting in messages not always written when database was read just after the write (a case common with MUC implementation), and message was appearing empty when sent to bridge. fix 328
author Goffi <goffi@goffi.org>
date Thu, 18 Jul 2019 21:58:34 +0200
parents 003b8b4b56a7
children 9d0df638c8b4
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 """This module is only used launch callbacks when host is ready, used for early initialisation stuffs"""
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23 listeners = []
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26 def addListener(cb):
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27 """Add a listener which will be called when host is ready
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29 @param cb: callback which will be called when host is ready with host as only argument
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30 """
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31 listeners.append(cb)
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34 def callListeners(host):
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35 """Must be called by frontend when host is ready.
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37 The call will launch all the callbacks, then remove the listeners list.
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38 @param host(QuickApp): the instancied QuickApp subclass
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39 """
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40 global listeners
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41 while True:
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42 try:
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43 cb = listeners.pop(0)
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44 cb(host)
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45 except IndexError:
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46 break
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47 del listeners