public void ConnectTo(IPAddress ip, int port)
{
if (state != CONNECTOR_STATE.IDLE)
{
throw new Exception("This Peer Not Idle State");
}
state = CONNECTOR_STATE.WAIT_SYN_ACK;
socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, CONNECTION_TIMEOUT);
remoteEndPoint = new IPEndPoint(ip, port);
byte[] synPayloadBytes = SYN.ToBytes();
Array.Clear(sendBuffer, 0, sendBuffer.Length);
//SYN 패킷 전송
Array.Copy(synPayloadBytes, sendBuffer, synPayloadBytes.Length);
socket.SendTo(sendBuffer, remoteEndPoint);
Debug.Log("Connect Start" + " " + remoteEndPoint.ToString());
OnConnectStart?.Invoke();
connectThread = new Thread(ThreadMainConnect);
connectThread.Start();
}
private void ProcessACK()
{
if (state == CONNECTOR_STATE.WAIT_ACK)
{
state = CONNECTOR_STATE.CONNECTED;
OnConnectSuccess(this.socket, remoteEndPoint);
this.socket = null;
this.remoteEndPoint = null;
ResetConnector();
}
else
{
Debug.Log("ACK 대기중 아닌데 ACK 패킷 들어옴.");
}
}
public void ConnectWait(int port)
{
if (state != CONNECTOR_STATE.IDLE)
{
throw new Exception("This Peer Not Idle State");
}
state = CONNECTOR_STATE.WAIT_SYN;
socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
remoteEndPoint = new IPEndPoint(IPAddress.Any, port);
socket.Bind(remoteEndPoint);
OnWaitStart?.Invoke();
connectThreadAbortFlag = false;
connectThread = new Thread(ThreadMainConnect);
connectThread.Start();
}
private void ProcessSYN()
{
if (state == CONNECTOR_STATE.WAIT_SYN)
{
state = CONNECTOR_STATE.WAIT_ACK;
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, CONNECTION_TIMEOUT);
Array.Clear(sendBuffer, 0, sendBuffer.Length);
//SYN_ACK 패킷 전송
byte[] synAckPacketBytes = SYN_ACK.ToBytes();
Array.Copy(synAckPacketBytes, sendBuffer, synAckPacketBytes.Length);
socket.SendTo(sendBuffer, remoteEndPoint);
}
else
{
Debug.Log("SYN 대기 중 아닌데 SYN 패킷 들어옴.");
}
}
private void ResetConnector()
{
try
{
socket?.Close();
connectThreadAbortFlag = true;
connectThread = null;
remoteEndPoint = null;
socket = null;
Array.Clear(this.sendBuffer, 0, sendBuffer.Length);
Array.Clear(this.recvBuffer, 0, recvBuffer.Length);
state = CONNECTOR_STATE.IDLE;
}
catch (Exception e) {
Debug.Log(e.GetType().Name + " " + e.Message + " " + e.StackTrace);
}
}
private void ProcessSYN_ACK()
{
if (state == CONNECTOR_STATE.WAIT_SYN_ACK)
{
Array.Clear(sendBuffer, 0, sendBuffer.Length);
byte[] ackPacketBytes = ACK.ToBytes();
Array.Copy(ackPacketBytes, sendBuffer, ackPacketBytes.Length);
socket.SendTo(sendBuffer, remoteEndPoint);
state = CONNECTOR_STATE.CONNECTED;
//연결완료
this.OnConnectSuccess(this.socket, this.remoteEndPoint);
this.socket = null;
this.remoteEndPoint = null;
ResetConnector();
}
else
{
Debug.Log("SYN_ACK 대기 중 아닌데 SYN_ACK 패킷 들어옴.");
}
}
