silverlight socket 等待主机开机的问题

[enterzhuang]

        public void start()
        {

            syn = SynchronizationContext.Current;


            if (string.IsNullOrEmpty(ipaddress) || string.IsNullOrWhiteSpace(ipaddress))
            {
                MessageBox.Show("通讯IP地址不能为空");
                return;
            }
            IPAddress ip = IPAddress.Parse(ipaddress);
            IPEndPoint ipe = new IPEndPoint(ip, sPort);
            clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建一个Socket
            socketEventArg = new SocketAsyncEventArgs()
            {
                RemoteEndPoint = new IPEndPoint(ip, sPort)
            };

            socketEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(socketEventArg_Completed);
            clientSocket.ConnectAsync(socketEventArg);
            if (timer == null)
                timer = new Timer(new TimerCallback(StartReceive), null, 2000, 2000);    
        }
        int sInterval = 0;
        public void StartReceive(object o)
        {
            try
            {
                if (clientSocket.Connected == true)
                {
                    socketEventArg.SetBuffer(byteReceive, 0, byteReceive.Length);
                    clientSocket.ReceiveAsync(socketEventArg);
                }
                else
                {
                    sInterval = sInterval + 1;
                    if (sInterval == 3)
                    {
                        sInterval = 0;
                        clientSocket.ConnectAsync(socketEventArg);
                    }
                }
            }
            catch
            { }

        }
        int sReadtime = 0;
        void socketEventArg_Completed(object sender, SocketAsyncEventArgs e)
        {
            switch (e.LastOperation)
            {
                case SocketAsyncOperation.Connect:
                    if (e.SocketError !=SocketError.Success)
                    {

                        clientSocket.ConnectAsync(socketEventArg);
                        return;
                    }
                    e.SetBuffer(byteReceive, 0, byteReceive.Length);
                    clientSocket.ReceiveAsync(e);
                    break;

                case SocketAsyncOperation.Receive:
                    string strText = System.Text.Encoding.UTF8.GetString(e.Buffer, 0, e.Buffer.Length);
                    if (string.IsNullOrEmpty(strText))
                    {
                        //clientSocket.Close();
                    }
                    else
                    {
                        DogMsg.SendTwoMsg("end");
                        if (string.IsNullOrEmpty(strText))
                            return;
                        if (strText.IndexOf("\0") > 0)
                        {
                            strText = strText.Substring(1, strText.IndexOf("\0") - 1);
                        }
                        syn.Post(DoThing, strText);


                    }


                    break;
                case SocketAsyncOperation.None:
                    isSend = false;
                    break;
            }
 
        }

如是开始连不上主机使用clientSocket.ConnectAsync(socketEventArg);
用定时器进行连接，但只连了二次就不再连了，就算主机开了也没法连接，请帮忙，谢谢

[jv9]

如果初始能够连接成功，说明代码应该没有问题，二次重复连接失败，需要看端口当前是否开放，连接是否仍旧处于激活状态。推荐debug代码，察看详细错误信息。

[Architecture Net]

看看是不是由于第一次连接时未释放该端口的连接，导致第二次连接时端口被占用~