sugar-toolkit-gtk3/bin/sugar-activity
Gonzalo Odiard f157b1148e Avoid breaking activity startup by dbus timeout on sigle instance - Fixes #4773
This problem only happen in activities configured with the option -s
in the activity.info "exec" field, and the objective is use a single process,
even when starting more than one instance. If the process do not reply,
start a new process, instead of show a error.

Signed-off-by: Gonzalo Odiard <godiard@sugarlabs.org>
2014-05-21 14:40:51 -04:00

170 lines
5.9 KiB
Python

#!/usr/bin/env python2
# Copyright (C) 2006-2008, Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import sys
# Change the default encoding to avoid UnicodeDecodeError
# http://lists.sugarlabs.org/archive/sugar-devel/2012-August/038928.html
reload(sys)
sys.setdefaultencoding('utf-8')
import gettext
from optparse import OptionParser
import dbus
import dbus.service
from dbus.mainloop.glib import DBusGMainLoop
DBusGMainLoop(set_as_default=True)
from sugar3.activity import activityhandle
from sugar3 import config
from sugar3.bundle.activitybundle import ActivityBundle
from sugar3 import logger
def create_activity_instance(constructor, handle):
activity = constructor(handle)
activity.show()
return activity
def get_single_process_name(bundle_id):
return bundle_id
def get_single_process_path(bundle_id):
return '/' + bundle_id.replace('.', '/')
class SingleProcess(dbus.service.Object):
def __init__(self, name_service, constructor):
self.constructor = constructor
bus = dbus.SessionBus()
bus_name = dbus.service.BusName(name_service, bus=bus)
object_path = get_single_process_path(name_service)
dbus.service.Object.__init__(self, bus_name, object_path)
@dbus.service.method('org.laptop.SingleProcess', in_signature='a{sv}')
def create(self, handle_dict):
handle = activityhandle.create_from_dict(handle_dict)
create_activity_instance(self.constructor, handle)
def main():
parser = OptionParser()
parser.add_option('-b', '--bundle-id', dest='bundle_id',
help='identifier of the activity bundle')
parser.add_option('-a', '--activity-id', dest='activity_id',
help='identifier of the activity instance')
parser.add_option('-o', '--object-id', dest='object_id',
help='identifier of the associated datastore object')
parser.add_option('-u', '--uri', dest='uri',
help='URI to load')
parser.add_option('-s', '--single-process', dest='single_process',
action='store_true',
help='start all the instances in the same process')
parser.add_option('-i', '--invited', dest='invited',
action='store_true', default=False,
help='the activity is being launched for handling an '
'invite from the network')
(options, args) = parser.parse_args()
logger.start()
if 'SUGAR_BUNDLE_PATH' not in os.environ:
print 'SUGAR_BUNDLE_PATH is not defined in the environment.'
sys.exit(1)
if len(args) == 0:
print 'A python class must be specified as first argument.'
sys.exit(1)
bundle_path = os.environ['SUGAR_BUNDLE_PATH']
sys.path.append(bundle_path)
bundle = ActivityBundle(bundle_path)
os.environ['SUGAR_BUNDLE_ID'] = bundle.get_bundle_id()
os.environ['SUGAR_BUNDLE_NAME'] = bundle.get_name()
os.environ['SUGAR_BUNDLE_VERSION'] = str(bundle.get_activity_version())
# must be done early, some activities set translations globally, SL #3654
activity_locale_path = os.environ.get("SUGAR_LOCALEDIR",
config.locale_path)
gettext.bindtextdomain(bundle.get_bundle_id(), activity_locale_path)
gettext.bindtextdomain('sugar-toolkit-gtk3', config.locale_path)
gettext.textdomain(bundle.get_bundle_id())
splitted_module = args[0].rsplit('.', 1)
module_name = splitted_module[0]
class_name = splitted_module[1]
module = __import__(module_name)
for comp in module_name.split('.')[1:]:
module = getattr(module, comp)
activity_constructor = getattr(module, class_name)
activity_handle = activityhandle.ActivityHandle(
activity_id=options.activity_id,
object_id=options.object_id, uri=options.uri,
invited=options.invited)
if options.single_process is True:
sessionbus = dbus.SessionBus()
service_name = get_single_process_name(options.bundle_id)
service_path = get_single_process_path(options.bundle_id)
bus_object = sessionbus.get_object(
'org.freedesktop.DBus', '/org/freedesktop/DBus')
try:
name = bus_object.GetNameOwner(
service_name, dbus_interface='org.freedesktop.DBus')
except dbus.DBusException:
name = None
if not name:
SingleProcess(service_name, activity_constructor)
else:
try:
single_process = sessionbus.get_object(service_name,
service_path)
single_process.create(
activity_handle.get_dict(),
dbus_interface='org.laptop.SingleProcess')
print 'Created %s in a single process.' % service_name
sys.exit(0)
except (TypeError, dbus.DBusException):
print 'Could not communicate with the instance process,' \
'launching a new process'
if hasattr(module, 'start'):
module.start()
instance = create_activity_instance(activity_constructor, activity_handle)
if hasattr(instance, 'run_main_loop'):
instance.run_main_loop()
main()