The maximum number of concurrent connections on the socket server is limited

linkeyu1982

Do server
The main code is as follows:
        public SocketServer (EndPoint endPoint)
        {
            socket = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            socket.Bind (endPoint);
        }

        public void Start ()
        {
            connectDone = new ManualResetEvent (false);
            connectThread = new Thread (new ThreadStart (ConnectService));
            connectThread.IsBackground = true;
            socket.Listen (1024);
            connectThread.Start ();
        }

        protected void ConnectService ()
        {
            while (true)
            {
                connectDone.Reset ();
                socket.BeginAccept (new AsyncCallback (ConnectInit), socket);
                connectDone.WaitOne ();
            }
        }

        protected void ConnectInit (IAsyncResult ar)
        {
            Socket clientSocket = ((Socket) ar.AsyncState) .EndAccept (ar);
            connectDone.Set ();
            if (OnConnect! = null)
            {
                 NetworkClient client = new NetworkClient (clientSocket);
                 OnConnect (client);
            }
        }
When the client has more than 3 users connected at the same time, all subsequent connections cannot be connected. Hope you guys help me see it.

linkeyu1982

There is a problem when the client segment creates more than three consecutive connections. If you do not create a connection Sleep (1000), there is no problem. The time of Sleep cannot be too short, otherwise the connection cannot be established.

terrymill

Asynchronous

terrymill

Multithreading

linkeyu1982

All are asynchronous processing methods, including client connection and sending information, reading information, etc. are asynchronous, I found that the connection has been established through the port viewer, but more than 3 connections are unable to communicate, mainly to establish a connection The amount of concurrency can not be too fierce, you must build one every 1 second

linkeyu1982

After quickly establishing 20 connections, sometimes only 2 can be used, sometimes only 3 can be used. If a connection is established after one second or more, there is no such problem. Everyone help me to see, feel dizzy.

11800620

Not so, my program listen(200), I tested 20 clients connected at the same time. Each is handled by a separate thread. But there is no situation when testing large amounts of data.