private unsafe void ReadCallback(IAsyncResult ar)
{
State = (TCP_StateConnection)ar.AsyncState;
try
{
Socket handler = State.workSocket;
int read = handler.EndReceive(ar);
var packetBuffer = new CCompoundBuffer(State.recvBuffer);
if (read == 0)
{
OnDisconnect?.Invoke(this, EventArgs.Empty);
return;
}
lock (_locker)
{
while (packetBuffer.Offset < read)
{
PacketSecurity.Decrypt(packetBuffer);
int size = packetBuffer.ReadNextShort(0);
int packetId = packetBuffer.ReadNextShort(4);
if (size < 12)
{
break;
}
byte[] buffer = new byte[size];
fixed(byte *pBuffer = &packetBuffer.RawBuffer[packetBuffer.Offset])
{
Marshal.Copy((IntPtr)pBuffer, buffer, 0, size);
}
InterpretPacket(packetId, buffer);
packetBuffer.Offset += size;
}
}
StartReceive(State);
}
catch (SocketException e)
{
throw e;
}
catch (Exception e)
{
throw e;
}
}
private void ConnectCallback(IAsyncResult ar)
{
Socket client = (Socket)ar.AsyncState;
client.EndConnect(ar);
// Create the state object.
State = new TCP_StateConnection
{
workSocket = client
};
// Envia o pacote de HelloWorld e espera até 3 segundos para a resposta
Send(BitConverter.GetBytes(NetworkBasics.INIT_CODE));
InitCodeEvent.WaitOne(3000);
StartReceive(State);
}
private void StartReceive(TCP_StateConnection state)
{
state.workSocket.BeginReceive(state.recvBuffer, 0, NetworkBasics.MAX_PACKET_LENGTH, 0, new AsyncCallback(ReadCallback), state);
}