117 lines
3.7 KiB
Python
117 lines
3.7 KiB
Python
# Copyright (C) 2014 Kamil Paral <kamil.paral AT gmail.com>
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#
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# This file is part of Gajim.
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#
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# Gajim is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published
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# by the Free Software Foundation; version 3 only.
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#
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# Gajim 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 General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Gajim. If not, see <http://www.gnu.org/licenses/>.
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'''
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Watch for system suspend using systemd-logind.
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Documentation: http://www.freedesktop.org/wiki/Software/systemd/inhibit
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'''
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import os
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import logging
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from gi.repository import Gio, GLib
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from gajim.common import app
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from gajim.common.i18n import _
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log = logging.getLogger('gajim.logind_listener')
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# file descriptor of the inhibitor; negative number means we don't
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# hold any (yet)
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fd = None
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def signal_received(connection, sender_name, object_path,
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interface_name, signal_name, parameters, *user_data):
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'''Signal handler for suspend event'''
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global fd
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log.info('Signal received: %s - %s', interface_name, parameters)
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# signal is sent right before (with the parameter True) and after
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# (with the parameter False) the system goes down for suspend/hibernate
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if not parameters[0]:
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return
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# we're going for suspend, let's disconnect
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log.debug('System suspend detected, disconnecting from network…')
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for name, conn in app.connections.items():
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if app.account_is_connected(name):
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conn.old_show = app.SHOW_LIST[conn.connected]
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st = conn.status
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conn.change_status('offline', _('Machine is going to sleep'))
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conn.status = st
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conn.time_to_reconnect = 5
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# close the file descriptor and let the computer suspend
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if fd is not None:
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os.close(fd)
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fd = None
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else:
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# something is wrong, the system is suspending but we don't have
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# a lock file
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log.warning("System suspend detected, but we don't seem to be holding "
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"a file descriptor for sleep inhibitor")
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def get_inhibitor(connection):
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'''Ask for a suspend delay inhibitor'''
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global fd
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if fd is not None:
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# something is wrong, we haven't closed the previous file descriptor
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# and we ask for yet another one
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log.warning('We are about to ask for a sleep inhibitor, but we seem '
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'to be holding one already')
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ret = connection.call_with_unix_fd_list_sync(
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'org.freedesktop.login1',
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'/org/freedesktop/login1',
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'org.freedesktop.login1.Manager',
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'Inhibit',
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GLib.Variant('(ssss)', ('sleep', 'org.gajim.Gajim',
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_('Disconnect from the network'), 'delay')),
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GLib.VariantType.new('(h)'),
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Gio.DBusCallFlags.NONE, -1, None, None)
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fd = ret.out_fd_list.get(0)
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def appeared(connection, name, name_owner, *user_data):
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'''Set up a listener for suspend signals'''
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log.info('%s appeared', name)
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if name == 'org.freedesktop.login1':
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connection.signal_subscribe(
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'org.freedesktop.login1',
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'org.freedesktop.login1.Manager',
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'PrepareForSleep',
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'/org/freedesktop/login1',
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None,
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Gio.DBusSignalFlags.NONE,
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signal_received,
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None)
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get_inhibitor(connection)
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Gio.bus_watch_name(
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Gio.BusType.SYSTEM,
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'org.freedesktop.login1',
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Gio.BusNameWatcherFlags.NONE,
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appeared,
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None)
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