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#!/usr/bin/env python
usage = """Usage:
python example-signal-emitter.py &
python example-signal-recipient.py
python example-signal-recipient.py --exit-service
"""
# Copyright (C) 2004-2006 Red Hat Inc. <http://www.redhat.com/>
# Copyright (C) 2005-2007 Collabora Ltd. <http://www.collabora.co.uk/>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use, copy,
# modify, merge, publish, distribute, sublicense, and/or sell copies
# of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
import sys
import traceback
import gobject
import dbus
import dbus.mainloop.glib
def handle_reply(msg):
print msg
def handle_error(e):
print str(e)
def emit_signal():
#call the emitHelloSignal method
object.emitHelloSignal(dbus_interface="com.example.TestService")
#reply_handler = handle_reply, error_handler = handle_error)
# exit after waiting a short time for the signal
gobject.timeout_add(2000, loop.quit)
if sys.argv[1:] == ['--exit-service']:
object.Exit(dbus_interface='com.example.TestService')
return False
def hello_signal_handler(hello_string):
print ("Received signal (by connecting using remote object) and it says: "
+ hello_string)
def catchall_signal_handler(*args, **kwargs):
print ("Caught signal (in catchall handler) "
+ kwargs['dbus_interface'] + "." + kwargs['member'])
for arg in args:
print " " + str(arg)
def catchall_hello_signals_handler(hello_string):
print "Received a hello signal and it says " + hello_string
def catchall_testservice_interface_handler(hello_string, dbus_message):
print "com.example.TestService interface says " + hello_string + " when it sent signal " + dbus_message.get_member()
if __name__ == '__main__':
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
bus = dbus.SessionBus()
try:
object = bus.get_object("com.example.TestService","/com/example/TestService/object")
object.connect_to_signal("HelloSignal", hello_signal_handler, dbus_interface="com.example.TestService", arg0="Hello")
except dbus.DBusException:
traceback.print_exc()
print usage
sys.exit(1)
#lets make a catchall
bus.add_signal_receiver(catchall_signal_handler, interface_keyword='dbus_interface', member_keyword='member')
bus.add_signal_receiver(catchall_hello_signals_handler, dbus_interface = "com.example.TestService", signal_name = "HelloSignal")
bus.add_signal_receiver(catchall_testservice_interface_handler, dbus_interface = "com.example.TestService", message_keyword='dbus_message')
# Tell the remote object to emit the signal after a short delay
gobject.timeout_add(2000, emit_signal)
loop = gobject.MainLoop()
loop.run()
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