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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 gobject
+
+import dbus
+import dbus.service
+import dbus.mainloop.glib
+
+class TestObject(dbus.service.Object):
+ def __init__(self, conn, object_path='/com/example/TestService/object'):
+ dbus.service.Object.__init__(self, conn, object_path)
+
+ @dbus.service.signal('com.example.TestService')
+ def HelloSignal(self, message):
+ # The signal is emitted when this method exits
+ # You can have code here if you wish
+ pass
+
+ @dbus.service.method('com.example.TestService')
+ def emitHelloSignal(self):
+ #you emit signals by calling the signal's skeleton method
+ self.HelloSignal('Hello')
+ return 'Signal emitted'
+
+ @dbus.service.method("com.example.TestService",
+ in_signature='', out_signature='')
+ def Exit(self):
+ loop.quit()
+
+if __name__ == '__main__':
+ dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+
+ session_bus = dbus.SessionBus()
+ name = dbus.service.BusName('com.example.TestService', session_bus)
+ object = TestObject(session_bus)
+
+ loop = gobject.MainLoop()
+ print "Running example signal emitter service."
+ print usage
+ loop.run()