계속 시도 해 보았는데요. async에 await 대해 공부하고 어떤 방식으로 작용하는지 또 왜 써야 하는지는 알겠습니다.

그런데 어떻게 써야 할지 또 어디에서 어떤 메소드에 적용해야 할지 모르겠습니다.

신호를 주기적으로 보내다가 신호를 받을때 잠시 멈춰 신호를 받고 다시 신호를 보내고 싶은데 잘 안되네요.

현재 제가 작업한 소스입니다. 근데 생각한대로 안돼고 있습니다.

어디다가 async await를 적용해야 할까요? 또 async await를 어떻게 공부하면 좋을지도 모르겠습니다. 책도 보고 구글링도 해보지만 아무래도 어렵습니다.

namespace L_Server
{

    public sealed partial class MainPage : Page
    {
        
         public MainPage()
        {
            this.InitializeComponent();
            echo_server();
            DispatcherTimerSetup();
        }
              private async void echo_server()
        {
            try
            {
                //TCP 접속을 대기 시작하는 StreamSocketlistener를 만든다.
                Windows.Networking.Sockets.StreamSocketListener socketListener = new Windows.Networking.Sockets.StreamSocketListener();
                //연결이 수신 될 때 호출하는 이벤트 핸들러를 연결
                socketListener.ConnectionReceived += SocketListener_ConnectionReceived;
                
                // String a = socketListener.BindEndpointAsync(HostName localhost, String local);
                //지정된 포트에 들어오는 TCP 접속을 대기 시작. 현재 사용하는 모든 포트를 지정할 수 있다.
                await socketListener.BindServiceNameAsync("1337");
            }
            catch (Exception e)
            {
                //Handle exception.
            }

        }
        private async void SocketListener_ConnectionReceived(Windows.Networking.Sockets.StreamSocketListener sender,
    Windows.Networking.Sockets.StreamSocketListenerConnectionReceivedEventArgs args)
        {
            //원격 클라이언트에서 읽어오기
            string a = args.Socket.Information.RemoteAddress.DisplayName.ToString();
            Stream inStream = args.Socket.InputStream.AsStreamForRead();
            StreamReader reader = new StreamReader(inStream);
            string request = await reader.ReadLineAsync();
            this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
            {
                textBox1.Text = a+" "+DateTime.Now.ToString("HH:mm:ss")+"\n";
                textBlock_Copy.Text = request;
            }).AsTask().Wait();
         
            //Send the line back to the remote client.
            Stream outStream = args.Socket.OutputStream.AsStreamForWrite();
            StreamWriter writer = new StreamWriter(outStream);
            await writer.WriteLineAsync(request);
            await writer.FlushAsync();
        }

        private async void echo_client()
        {
            try
            {
                //Create the StreamSocket and establish a connection to the echo server.
                Windows.Networking.Sockets.StreamSocket socket = new Windows.Networking.Sockets.StreamSocket();
          
                
                //The server hostname that we will be establishing a connection to. We will be running the server and client locally,
                //so we will use localhost as the hostname.
        Windows.Networking.HostName serverHost = new Windows.Networking.HostName("192.168.10.142");

                //Every protocol typically has a standard port number. For example HTTP is typically 80, FTP is 20 and 21, etc.
                //For the echo server/client application we will use a random port 1337.
                string serverPort = "1337";
                await socket.ConnectAsync(serverHost, serverPort);
                
                //Write data to the echo server.
                Stream streamOut = socket.OutputStream.AsStreamForWrite();
                StreamWriter writer = new StreamWriter(streamOut);
                string request = DateTime.Now.ToString("HH:mm:ss");
                await writer.WriteLineAsync(request);
                await writer.FlushAsync();
                
                //Read data from the echo server.
                Stream streamIn = socket.InputStream.AsStreamForRead();
                StreamReader reader = new StreamReader(streamIn);
                string response = await reader.ReadLineAsync();
            }
            catch (Exception e)
            {
                //Handle exception here.
            }
        }
        private void button_Click(object sender, RoutedEventArgs e)
        {
            echo_client();
        }
       
        DispatcherTimer dispatcherTimer;

        public void DispatcherTimerSetup()
        {
            dispatcherTimer = new DispatcherTimer();
            dispatcherTimer.Tick += dispatcherTimer_Tick;
            dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, 100);
            dispatcherTimer.Start();
            TimerLog.Text += "dispatcherTimer.IsEnabled = " + dispatcherTimer.IsEnabled + "\n";
        }

        void dispatcherTimer_Tick(object sender, object e)
        {
            echo_client();
        }
    }
}

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• [다음 글] 한글 키보드 입력에 대해서 질문이 있습니다.
• [이전 글] 인터넷 임시파일 삭제 관련 질문.

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