public void Stop()
{
if (_kcpLink != null)
{
_kcpLink?.Stop(_Stop);
}
else
{
_Stop();
}
}
private async Task ParseCmd(ReadOnlyMemory <byte> recvBufMemory, int length)
{
byte cmd = recvBufMemory.Span[0];
if ((cmd & NetworkCmd.SYN) != 0)
{
if ((cmd & NetworkCmd.ACK) != 0)
{
// Debug.LogFormat("recv SYN +ACK");
// syn ack
uint conv = BinaryPrimitives.ReadUInt32LittleEndian(recvBufMemory.Span.Slice(1));
if (_kcpLink == null)
{
_kcpLink = new KcpLink();
_kcpLink.Run(conv, new KcpUdpCallback(_socket, _remoteEP));
_kcpLink.OnRecvKcpPackage += KcpLink_OnRecvKcpPackage;
}
// 发送 ayn ack
var sendBytes = new byte[5];
sendBytes[0] = NetworkCmd.SYN | NetworkCmd.ACK;
BinaryPrimitives.WriteUInt32LittleEndian(new Span <byte>(sendBytes, 1, 4), conv);
// Debug.LogFormat("send SYN + ACK");
_socket.Send(sendBytes, SocketFlags.None);
_synTaskCancellationTokenSource.Cancel();
}
else
{
// syn 客户端不存在这种情况
}
}
else if ((cmd & NetworkCmd.PUSH) != 0)
{
// Debug.LogFormat("recv PUSH");
await _kcpLink.RecvFromRemoteAsync(recvBufMemory.Slice(1, length - 1));
}
else if ((cmd & NetworkCmd.FIN) != 0)
{
// Debug.LogFormat("recv FIN");
_kcpLink.Stop();
}
}