void doError(int errcode, RpcMessage m)
{
RpcMessageReturn msgreturn = new RpcMessageReturn(m.sequence,errcode);
msgreturn.send(m.conn);
// RpcConnection conn = m.conn;
/*
var sm:RpcMessageReturn = new RpcMessageReturn();
sm.sequence = m.sequence;
sm.errcode = errcode;
conn.sendMessage(sm);
*/
}