def _register_callback()

in rocketmq/client.py [0:0]


    def _register_callback(self, callback):
        if self._orderly:
            register_func = dll.RegisterMessageCallbackOrderly
        else:
            register_func = dll.RegisterMessageCallback

        func = MSG_CALLBACK_FUNC(callback)
        self._callback_refs.append(func)
        ffi_check(register_func(self._handle, func))