c# 异步客户端循环运行

Question

我正在尝试在此处编写 MSDN 示例的非常简单（对我来说似乎是这样）扩展：https://msdn.microsoft.com/en-us/library/bew39x2a(v=vs.110).aspx

客户端会循环运行。在下面的例子中，我每次都在重新初始化客户端。

    while (true)
        {
            Socket client = new Socket(AddressFamily.InterNetwork,
                SocketType.Stream, ProtocolType.Tcp);
            client.BeginConnect(remoteEP,
                new AsyncCallback(ConnectCallback), client);
            connectDone.WaitOne();

            string myCommand = "";

            Console.WriteLine("Enter command:");
            myCommand = Console.ReadLine();



            if (myCommand == "quit") break;
            // Send test data to the remote device.
            Send(client, myCommand + "<EOF>");
            sendDone.WaitOne();

            // Receive the response from the remote device.
            Receive(client);
            receiveDone.WaitOne();

            // Write the response to the console.
            Console.WriteLine("Response received : {0}", response);
            // Release the socket.
            client.Shutdown(SocketShutdown.Both);
            client.Close();

        }

它不能始终如一地工作，我经常收到错误“无法访问已处置的对象”，但无法弄清楚是什么触发了它。 我是套接字编程和多线程的初学者。

Answer 1

如果我重新初始化手动事件处理程序似乎可以工作。不知道这些东西是做什么的:)

        while (true)
        {
            using (Socket client = new Socket(AddressFamily.InterNetwork,
                SocketType.Stream, ProtocolType.Tcp))
            {
                connectDone = new ManualResetEvent(false);
                sendDone =  new ManualResetEvent(false);
                receiveDone =  new ManualResetEvent(false);

                client.BeginConnect(remoteEP,
                    new AsyncCallback(ConnectCallback), client);
                connectDone.WaitOne();



                string myCommand = "";

                //Thread.Sleep(100);  
                // Create a TCP/IP socket.

                Console.WriteLine("Enter command:");
                myCommand = Console.ReadLine();



                if (myCommand == "quit") break;
                // Send test data to the remote device.
                Send(client, myCommand + "<EOF>");
                sendDone.WaitOne();

                // Receive the response from the remote device.
                Receive(client);
                receiveDone.WaitOne();

                // Write the response to the console.
                Console.WriteLine("Response received : {0}", response);
                // Release the socket.
                client.Shutdown(SocketShutdown.Both);
                client.Close();
            }

        }