void ProcessRecvBuffer(Message message)
{
Log.InfoFormat("[ProcessRecvBuffer] receive message seq = {0} ack = {1} ctrl = {2}", message.seq, message.ack, message.ctrl);
if (message.ctrl == (byte)ESAFlag.Ctrl)// ctrl message
{
Log.InfoFormat("[Info] ProcessRecvBuffer Receive Ctrl Message");
// receive syn & ack message
if (message.syn == 1)
{
if (_eConnectState == EConnectState.SYN_SENT)
{
_base = (byte)(message.ack + 1);
_svrSeq = message.seq;
OnReceiveAck();
SendCtrlAck();
_eConnectState = EConnectState.ESTABLISHED;
Log.InfoFormat("ProcessRecvBuffer _eConnectState from {0} to {1}", EConnectState.SYN_SENT, _eConnectState);
}
else
{
Log.InfoFormat("[Info] Receive syn with _eConnectState = {0}", _eConnectState);
}
}
else if (message.fin == 1)
{
if (_eConnectState == EConnectState.FIN_WAIT_2)
{
SendCtrlAck();
_eConnectState = EConnectState.TIME_WAIT;
Log.InfoFormat("[Info] Receive Fin, Send Ack, _eConnectState from {0} to {1}", EConnectState.FIN_WAIT_2, _eConnectState);
_finCountdownId = CountdownTimer.Instance.StartTimer(3, FinCountdown);
}
else
{
Log.InfoFormat("[Info] Receive Fin while _eConnectState = {0}", _eConnectState);
}
}
else if (_eConnectState == EConnectState.FIN_WAIT_1)// receive ack message for fin
{
_base = (byte)(message.ack + 1);
OnReceiveAck();
_eConnectState = EConnectState.FIN_WAIT_2;
Log.InfoFormat("[Info] Receive Ack Send Nothing, _eConnectState = {0}", _eConnectState);
}
}
else if (message.ctrl == (byte)ESAFlag.Seq) // seq
{
Log.InfoFormat("[Info] ProcessRecvBuffer Receive seq message");
if (message.seq != GetSvrSeq())
{
// ignore receiver 's message
Log.InfoFormat("[Info] Receive message.seq = {0} != _svrSeq {1}, discard", message.seq, _svrSeq);
ResendAck();
return;
}
// receive message correctly
// handle message
// set server seq
_svrSeq = message.seq;
Log.InfoFormat("[Info] ProcessRecvBuffer message.seq = {0}", message.seq);
SendAck();
_networkclient.PostMessage(message);
}
else if (message.ctrl == (byte)ESAFlag.Ack) //ack
{
var ack = message.ack;
_base = (byte)(ack);
Log.InfoFormat("[Info] ProcessRecvBuffer Receive ack message ack = {0}", ack);
OnReceiveAck();
}
}