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Diffstat (limited to 'examples/example-async-client.py')
-rw-r--r-- | examples/example-async-client.py | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/examples/example-async-client.py b/examples/example-async-client.py new file mode 100644 index 0000000..0c324e0 --- /dev/null +++ b/examples/example-async-client.py @@ -0,0 +1,109 @@ +#!/usr/bin/env python + +usage = """Usage: +python example-service.py & +python example-async-client.py +python example-async-client.py --exit-service +""" + +import sys +import traceback + +import gobject + +import dbus +import dbus.mainloop.glib + +# Callbacks for asynchronous calls + +def handle_hello_reply(r): + global hello_replied + hello_replied = True + + print str(r) + + if hello_replied and raise_replied: + loop.quit() + +def handle_hello_error(e): + global failed + global hello_replied + hello_replied = True + failed = True + + print "HelloWorld raised an exception! That's not meant to happen..." + print "\t", str(e) + + if hello_replied and raise_replied: + loop.quit() + +def handle_hello_error(e): + global failed + global hello_replied + hello_replied = True + failed = True + + print "HelloWorld raised an exception! That's not meant to happen..." + print "\t", str(e) + + if hello_replied and raise_replied: + loop.quit() + +def handle_raise_reply(): + global failed + global raise_replied + raise_replied = True + failed = True + + print "RaiseException returned normally! That's not meant to happen..." + + if hello_replied and raise_replied: + loop.quit() + +def handle_raise_error(e): + global raise_replied + raise_replied = True + + print "RaiseException raised an exception as expected:" + print "\t", str(e) + + if hello_replied and raise_replied: + loop.quit() + +def make_calls(): + # To make an async call, use the reply_handler and error_handler kwargs + remote_object.HelloWorld("Hello from example-async-client.py!", + dbus_interface='com.example.SampleInterface', + reply_handler=handle_hello_reply, + error_handler=handle_hello_error) + + # Interface objects also support async calls + iface = dbus.Interface(remote_object, 'com.example.SampleInterface') + + iface.RaiseException(reply_handler=handle_raise_reply, + error_handler=handle_raise_error) + + return False + +if __name__ == '__main__': + dbus.mainloop.glib.DBusGMainLoop(set_as_default=True) + + bus = dbus.SessionBus() + try: + remote_object = bus.get_object("com.example.SampleService","/SomeObject") + except dbus.DBusException: + traceback.print_exc() + print usage + sys.exit(1) + + # Make the method call after a short delay + gobject.timeout_add(1000, make_calls) + + failed = False + hello_replied = False + raise_replied = False + + loop = gobject.MainLoop() + loop.run() + if failed: + raise SystemExit("Example async client failed!") |