public void ReceiveDataCallback(IAsyncResult AsyncResult)
{
string content = String.Empty;
ConnectionObject connObj = (ConnectionObject)AsyncResult.AsyncState;
Socket FromThisSocket = connObj.SocketObject;
int BytesRead = FromThisSocket.EndReceive(AsyncResult);
if (BytesRead > 0)
{
if (connObj.IsNewConnection)
{
// Sometimes new connections create some "received" data that doesn't make sense.
// So we need to discard these data received.
connObj.IsNewConnection = false;
}
else
{
connObj.TempStringBuilder.Append(Encoding.UTF8.GetString(connObj.ReceiveBuffer, 0, BytesRead));
content = connObj.TempStringBuilder.ToString();
// Echo back when seeing CRLF.
if (content.IndexOf(Environment.NewLine) > -1)
{
this.Log(String.Format("Read {0} bytes from client. Data: [{1}]", content.Length, content));
SendData(FromThisSocket, content);
connObj.TempStringBuilder.Clear();
}
}
// Always Keep reading.
FromThisSocket.BeginReceive(connObj.ReceiveBuffer, 0, Constant.BUFFER_SIZE, SocketFlags.None, new AsyncCallback(ReceiveDataCallback), connObj);
}
}
public void AcceptConnectionCallback(IAsyncResult AsyncResult)
{
// Signal the main thread to continue.
IsAllDone.Set();
Socket ListenerSocket = (Socket)AsyncResult.AsyncState;
Socket AcceptedSocket = ListenerSocket.EndAccept(AsyncResult);
ConnectionObject ConnObj = new ConnectionObject();
ConnObj.SocketObject = AcceptedSocket;
ConnObj.IsNewConnection = true;
AcceptedSocket.BeginReceive(ConnObj.ReceiveBuffer, 0, Constant.BUFFER_SIZE, SocketFlags.None, new AsyncCallback(ReceiveDataCallback), ConnObj);
this.Log(String.Format("Connection from {0} accepted.", ConnObj.SocketObject.RemoteEndPoint.ToString()));
}
