//User to KCP
public void Send(byte[] data)
{
var pack = new KCPPacket()
{
data = data,
};
sendQueue.Enqueue(pack);
}
//UDP to KCP
public void Input(byte[] data, int length)
{
var pack = new KCPPacket();
pack.DecodeData(data, length);
lock (recvQueue)
{
recvQueue.Enqueue(pack);
}
}
private void HandleRecv()
{
var c = 0;
while (c <= maxRecvNum)
{
KCPPacket recPack = null;
lock (recvQueue)
{
//服务器接收到客户端的ACK
if (recvQueue.Count > 0)
{
recPack = recvQueue.Dequeue();
}
}
if (recPack != null)
{
c++;
var seg = recPack;
if (seg.isAck)
{
foreach (var s in sendBuf)
{
if (s.sn == seg.sn)
{
s.cmd = KCPPacketCMD.CMD_ACKED;
break;
}
}
}
else //只发送一次ACK给服务器 失败则服务器自己报文重发
//服务器发送的新的报文 只接受服务器区间内的报文
//拒绝服务器重复的报文winStart = 0 winEnd = 2
//如果处理过了则不再处理
//服务器和每个客户端有独立的连接和独立的序号顺序
//连接建立的时刻就是 0 2 确定了
{
var srvSn = seg.sn;
var ret = CheckInWin(srvSn, ackWinStart, ackWinEnd);
//窗口边界的怎么处理不知道是否已经验证过了两倍大小的接受窗口
//sendSize 2 ackSz = 4
if (ret)
{
var sendACK = new KCPPacket();
sendACK.isAck = true;
sendACK.sn = seg.sn;
sendACK.EncodeFull();
//sendQueue.Enqueue(sendACK);
outputFunc(sendACK); //立即发送ACK
var tailHalfST = ackWinStart + windSz;
var tailHalfEND = ackWinEnd;
//数据出现在后半端，则可以移动接受窗口了
if (CheckInWin(srvSn, tailHalfST, tailHalfEND))
{
ackWinStart++;
ackWinEnd++;
ackYet.Remove(ackWinStart - 1);
recvList.MoveStart();
Console.WriteLine("WinSz:" + ackWinStart + ":" + ackWinEnd);
}
if (!ackYet.Contains(srvSn))
{
ackYet.Add(srvSn);
//recvBuf.Enqueue(seg);
recvList.AddPacket(seg, srvSn - ackWinStart);
CheckLoopList();
Console.WriteLine("Ack:" + srvSn);
}
}
}
}
else
{
break;
}
}
}
//将新来的报文放到某个slot上面
public void AddPacket(KCPPacket pack, UInt32 index)
{
var id = (start + index) % (total);
recvSlots[(int)id] = pack;
}