tco.py 文件源码

def sendto(self, message, dest, flags):
        if self.state.SHUTDOWN:
            raise err.Error(errno.ESHUTDOWN)
        if self.peer and dest != self.peer:
            raise err.Error(errno.EDESTADDRREQ)
        if len(message) > self.send_miu:
            raise err.Error(errno.EMSGSIZE)
        send_pdu = pdu.UnnumberedInformation(dest, self.addr, data=message)
        super(LogicalDataLink, self).send(send_pdu, flags)
        return self.state.ESTABLISHED is True