Asynchronous Socket Programming

[darkocean]

Hello Everybody,

My application listen TCP/IP port which is 6000 and working correctly but my client can not be process at same time so I want to use Asynchronous Socket to all clients work at same time. I found an best sample codes on google but it getting package information byte by byte :

public void WaitForData(System.Net.Sockets.Socket soc)
        {
            try
            {
                if (pfnWorkerCallBack == null)
                {
                    pfnWorkerCallBack = new AsyncCallback(OnDataReceived);
                }
                SocketPacket theSocPkt = new SocketPacket();
                theSocPkt.m_currentSocket = soc;
        
                soc.BeginReceive(theSocPkt.dataBuffer, 0,
                                   theSocPkt.dataBuffer.Length,
                                   SocketFlags.None,
                                   pfnWorkerCallBack,
                                   theSocPkt);
            }
            catch (SocketException se)
            {
                MessageBox.Show(se.Message);
            }
        }
 
        public void OnDataReceived(IAsyncResult asyn)
        {
            try
            {
                SocketPacket socketData = (SocketPacket)asyn.AsyncState;

                int iRx = 0;
         
                iRx = socketData.m_currentSocket.EndReceive(asyn);
                char[] chars = new char[iRx + 1];
                System.Text.Decoder d = System.Text.Encoding.UTF8.GetDecoder();
                int charLen = d.GetChars(socketData.dataBuffer,
                                         0, iRx, chars, 0);

                System.String szData = new System.String(chars);

                richTextBoxReceivedMsg.AppendText(szData);

                MessageBox.Show(szData);

                WaitForData(socketData.m_currentSocket);

            }
            catch (ObjectDisposedException)
            {
                System.Diagnostics.Debugger.Log(0, "1", "\nOnDataReceived: Socket has been closed\n");
            }
            catch (SocketException se)
            {
                MessageBox.Show(se.Message);
            }
        }

and I want to get it all string. I can not change it, it uses decoder and I dont know usage of it so please help me Asynchronous Socket application works wtih string. My client numbers is approximantly 500.

Thank you.