34 lines
1.4 KiB
C#
34 lines
1.4 KiB
C#
using System;
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using System.Net;
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using System.Net.Sockets;
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using System.Threading.Tasks;
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namespace SocketServer {
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public class EchoServer {
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public void Start(int port = 9656) {
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IPEndPoint endPoint = new IPEndPoint(IPAddress.Loopback, port);
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Socket socket = new Socket(endPoint.AddressFamily, SocketType.Stream, SecurityProtocolType.Tcp);
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socket.Bind(endPoint);
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socket.Listen(128);
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_ = Task.Run(() => DoEcho(socket));
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}
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private async Task DoEcho(Socket socket) {
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while (true) {
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Socket clientSocket = await Task.Factory.FromAsync(
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new Func<AsyncCallback, object, IAsyncResult>(socket.BeginAccept),
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new Func<IAsyncResult, Socket>(socket.EndAccept),
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null).ConfigureAwait(false);
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using (NetworkStream nStream = new NetworkStream(clientSocket, true)) {
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byte[] buffer = new byte[1024];
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while (true) {
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int bytesRead = await nStream.ReadAsync(buffer, 0, buffer.Length).ConfigureAwait(false);
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if (bytesRead == 0)
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break;
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await nStream.WriteAsync(buffer, 0, bytesRead).ConfigureAwait(false);
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}
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}
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}
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}
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}
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}
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