Re: TCP Queue (Backlog)

Gavin,

Try the WinForms and Advanced lists at discuss.develop.com

Peter

-----Original Message-----
From: Discussion relating to the specifics of the C# and Managed C++
languages [mailto:[email protected]] On Behalf Of Gavin Landon
Sent: Sunday, January 06, 2008 10:31 PM
To: [email protected]
Subject: Re: [DOTNET-CX] TCP Queue (Backlog)

Does anyone know of an active C# list?

----- Original Message -----
From: "Gavin Landon" <[email protected]>
To: <[email protected]>
Sent: Friday, January 04, 2008 12:05 PM
Subject: Re: [DOTNET-CX] TCP Queue (Backlog)


>I use BeginAcceptSocket() to make it asynchronous..
>
> -------
> public void StartListen()
> {
>
>    //log it
>    CLog.WriteLine("===========\r\nListing on: " + m_szHost + ":" +
> m_lPort.ToString() + "\r\n===========", CLog.LOG_TYPE.LOG_INFO);
>
>    //start listing on the given port
>    IPAddress inputDNS_IP =
> Dns.GetHostEntry(this.m_szHost).AddressList[0];
>
>    try
>    {
>        //set to listen on specific IP:port
>        this.svrListener = new TcpListener(inputDNS_IP, this.m_lPort);
>        //setup timeouts..
>        this.svrListener.Server.ReceiveTimeout = 30000;
>        this.svrListener.Server.SendTimeout = 30000;
>        //start with a backlog "TCP/IP Queue" of 1024
>        this.svrListener.Start(1024);
>    }
>    catch (SocketException e)
>    {
>        //log it
>        CLog.WriteLine("Error while creating the listener: " +
> e.Message, CLog.LOG_TYPE.LOG_ERR);
>    }
>
>    while (true)
>    {
>        // Set the event to nonsignaled state.
>        clientConnected.Reset();
>        // Accept the connection.
>        // BeginAcceptSocket() creates the accepted socket.
>        this.svrListener.BeginAcceptSocket(new
> AsyncCallback(DoAcceptSocketCallback), this.svrListener);
>
>        //log it
>        CLog.WriteLine("Socket Listening...", CLog.LOG_TYPE.LOG_INFO);
>        // Wait until a connection is made and processed before
>        // continuing.
>        clientConnected.WaitOne();
>    }
> }
>
> // Process the client connection.
> public void DoAcceptSocketCallback(IAsyncResult ar) {
>    CLog.WriteLine("Client Connecting...", CLog.LOG_TYPE.LOG_INFO);
>
>    //Get the listener that handles the client request.
>    TcpListener listener = (TcpListener)ar.AsyncState;
>
>    //End the operation and display the received data on the
>    //console.
>    Socket sckConnection = listener.EndAcceptSocket(ar);
>
>    //Signal the calling thread to continue.
>    clientConnected.Set();
>
>    //log it
>    CLog.WriteLine("{" + sckConnection.Handle.ToString() + "} Client
> Accepted...", CLog.LOG_TYPE.LOG_INFO);
>
>    //set vars for Socket Class
>    CSocket socket = new CSocket(sckConnection, this.m_szHost,
> this.m_lPort);
>
>    //start the thread
>    Thread th = new Thread(new ThreadStart(socket.Process));
>    th.Start();
>
>    CLog.WriteLine("{" + sckConnection.Handle.ToString() + "} Socket
> Thread Created...", CLog.LOG_TYPE.LOG_INFO); }
> -------
>
> ----- Original Message -----
> From: "Shen, ShunMing" <[email protected]>
> To: <[email protected]>
> Sent: Friday, January 04, 2008 2:57 AM
> Subject: Re: [DOTNET-CX] TCP Queue (Backlog)
>
>
> AcceptTcpClient() will remove TCP message from queue; Do you use it in
> your program ?
>
> -----Original Message-----
> From: Discussion relating to the specifics of the C# and Managed C++
> languages [mailto:[email protected]] On Behalf Of Gavin
> Landon
> Sent: 2008 $BG/ (B1 $B7n (B4 $BF| (B 16:12
> To: [email protected]
> Subject: [DOTNET-CX] TCP Queue (Backlog)
>
> Morning all..
>
> I'm having an issue that I've spent a few days on.   I'm building a web
> server and when I stress tested the server I got great results, but
> with one
> bad one..  I'm getting a lot of socket errors.   I have the following, but
> this doesn't seem to be working list expected..
>
> IPAddress inputDNS_IP =
> Dns.GetHostEntry(this.m_szHost).AddressList[0];
> this.svrListener = new TcpListener(inputDNS_IP, this.m_lPort); //setup
> timeouts..
> this.svrListener.Server.ReceiveTimeout = 30000;
> this.svrListener.Server.SendTimeout = 30000; //start with a backlog
> "TCP/IP Queue" of 1024 this.svrListener.Start(1024);
>
> I've changed the backlog param in Start() from 1 to 4096 and no matter
> what
> the value it doesn't seem to queue up the TCP message like expected.   Am
> I
> missing something?
>
> /*Chizl*/

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