def _post_connect(self):
"Greeting stuff"
init_event = Event()
error = [None] # so that err_cb can bind error[0]. just how it is.
# callbacks
def ok_cb(id, capabilities):
self._id = id
self._server_capabilities = capabilities
init_event.set()
def err_cb(err):
error[0] = err
init_event.set()
listener = HelloHandler(ok_cb, err_cb)
self.add_listener(listener)
self.send(
HelloHandler.build(self._client_capabilities,
self._device_handler))
logger.debug('starting main loop')
self.start()
# we expect server's hello message, if server doesn't responds in 60 seconds raise exception
init_event.wait(60)
if not init_event.is_set():
raise SessionError("Capability exchange timed out")
# received hello message or an error happened
self.remove_listener(listener)
if error[0]:
raise error[0]
#if ':base:1.0' not in self.server_capabilities:
# raise MissingCapabilityError(':base:1.0')
logger.info('initialized: session-id=%s | server_capabilities=%s' %
(self._id, self._server_capabilities))
def add_listener(self, listener):
"""Register a listener that will be notified of incoming messages and
errors.
:type listener: :class:`SessionListener`
"""
logger.debug('installing listener %r' % listener)
if not isinstance(listener, SessionListener):
raise SessionError("Listener must be a SessionListener type")
with self._lock:
self._listeners.add(listener)
