/// <summary>
/// Accepts incoming connections on supplied port
/// </summary>
/// <param name="result"></param>
private void AcceptSocketConnection(IAsyncResult result)
{
//We received a connection, parse supplied state object to CSockState
CSockState cSockState = result.AsyncState as CSockState;
//Create a buffer for received data in the stateobject
cSockState.CBuffer = new byte[1024];
//End the acceptCall, and store created socket connection in our stateobject
cSockState.Socket = _socket.EndAccept(result);
ConnectionReceived.Invoke(cSockState);
//Start listening for data on the established socket connection
cSockState.Socket.BeginReceive(cSockState.CBuffer, 0, cSockState.CBuffer.Length, SocketFlags.None, ReceiveData, cSockState);
//Start listening for new connections
_socket.BeginAccept(AcceptSocketConnection, new CSockState());
}
private void ReceiveData(IAsyncResult result)
{
try
{
CSockState cSockState = result.AsyncState as CSockState;
//No connection ?
if (!cSockState.Socket.Connected)
{
return;
}
SocketError socketStatus = SocketError.Disconnecting;
int dataLength = cSockState.Socket.EndReceive(result, out socketStatus);
if (socketStatus == SocketError.Success && dataLength != 0)
{
//We received data, copy to local byte buffer
byte[] buffer = new byte[dataLength];
Buffer.BlockCopy(cSockState.CBuffer, 0, buffer, 0, dataLength);
//TODO: Determine what this is used for ?
byte[] question = new byte[] { 1 };
DataReceived.Invoke(buffer, cSockState, question);
//If socket still connected receive more data
if (cSockState.Socket.Connected && question[0] == 1)
{
cSockState.Socket.BeginReceive(cSockState.CBuffer, 0, cSockState.CBuffer.Length, SocketFlags.None, ReceiveData, cSockState);
}
}
else
{
//On error disconnect the socket
if (cSockState.Socket.Connected)
{
cSockState.Socket.Disconnect(true);
}
ConnectionTerminated.Invoke(cSockState);
}
}
catch (Exception ex)
{
//TODO:Log exceptions
}
}