tap (task-based asynchronous pattern)

TAP/Server/Server.cs

@@ -0,0 +1,47 @@
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+
+namespace Server
+{
+	internal class Server
+	{
+		private static readonly int BUFFER_SIZE = 256;
+
+		static async Task Main(string[] args)
+		{
+			Socket serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+			IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 20000);
+			serverSocket.Bind(endPoint);
+			serverSocket.Listen(1000);
+
+			while (true)
+			{
+				Socket clientSocket = await serverSocket.AcceptAsync();
+				Console.WriteLine(clientSocket.RemoteEndPoint);
+				ThreadPool.QueueUserWorkItem(ReadAsync, clientSocket);
+			}
+		}
+
+		private static async void ReadAsync(object? state)
+		{
+			if (state == null)
+				return;
+
+			Socket clientSocket = (Socket)state;
+			while (true)
+			{
+				byte[] buffer = new byte[BUFFER_SIZE];
+				int n1 = await clientSocket.ReceiveAsync(buffer, SocketFlags.None);
+				if (n1 < 1)
+				{
+					Console.WriteLine("Client is disconnected...");
+					clientSocket.Dispose();
+					return;
+				}
+
+				Console.WriteLine(Encoding.UTF8.GetString(buffer));
+			}
+		}
+	}
+}