examples/example-signal-emitter.py

   1 #!/usr/bin/env python
   2
   3 usage = """Usage:
   4 python example-signal-emitter.py &
   5 python example-signal-recipient.py
   6 python example-signal-recipient.py --exit-service
   7 """
   8
   9 import gobject
  10
  11 import dbus
  12 import dbus.service
  13 import dbus.mainloop.glib
  14
  15 class TestObject(dbus.service.Object):
  16     def __init__(self, conn, object_path='/com/example/TestService/object'):
  17         dbus.service.Object.__init__(self, conn, object_path)
  18
  19     @dbus.service.signal('com.example.TestService')
  20     def HelloSignal(self, message):
  21         # The signal is emitted when this method exits
  22         # You can have code here if you wish
  23         pass
  24
  25     @dbus.service.method('com.example.TestService')
  26     def emitHelloSignal(self):
  27         #you emit signals by calling the signal's skeleton method
  28         self.HelloSignal('Hello')
  29         return 'Signal emitted'
  30
  31     @dbus.service.method("com.example.TestService",
  32                          in_signature='', out_signature='')
  33     def Exit(self):
  34         loop.quit()
  35
  36 if __name__ == '__main__':
  37     dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
  38
  39     session_bus = dbus.SessionBus()
  40     name = dbus.service.BusName('com.example.TestService', session_bus)
  41     object = TestObject(session_bus)
  42
  43     loop = gobject.MainLoop()
  44     print "Running example signal emitter service."
  45     print usage
  46     loop.run()