llc.py 文件源码

def sendto(self, socket, message, dest, flags):
        if not isinstance(socket, tco.TransmissionControlObject):
            raise err.Error(errno.ENOTSOCK)
        if isinstance(socket, tco.RawAccessPoint):
            if not isinstance(message, pdu.ProtocolDataUnit):
                raise TypeError("on a raw access point message must be a pdu")
            if not socket.is_bound:
                self.bind(socket)
            # FIXME: set socket send miu when activated
            socket.send_miu = self.cfg['send-miu']
            return socket.send(message, flags)
        if not isinstance(message, bytes):
            raise TypeError("the message argument must be a byte string")
        if isinstance(socket, tco.LogicalDataLink):
            if dest is None:
                raise err.Error(errno.EDESTADDRREQ)
            if not socket.is_bound:
                self.bind(socket)
            # FIXME: set socket send miu when activated
            socket.send_miu = self.cfg['send-miu']
            return socket.sendto(message, dest, flags)
        if isinstance(socket, tco.DataLinkConnection):
            return socket.send(message, flags)