tap (task-based asynchronous pattern)

TAP/Client/Client.cs

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+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+
+namespace Client
+{
+	internal class Client
+	{
+		static async Task Main(string[] args)
+		{
+			Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+			IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 20000);
+
+			await socket.ConnectAsync(endPoint);
+
+			while (true)
+			{
+				string str = Console.ReadLine() ?? string.Empty;
+				byte[] buffer = Encoding.UTF8.GetBytes(str);
+				await socket.SendAsync(buffer, SocketFlags.None);
+			}
+		}
+	}
+}

TAP/Client/Client.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

TAP/Server/Server.cs

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+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));
+			}
+		}
+	}
+}

TAP/Server/Server.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

TAP/TAP.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32929.385
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Server", "Server\Server.csproj", "{BE7AA4FD-6859-4010-A6A4-991A7E5BA6AB}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Client", "Client\Client.csproj", "{F632989E-390D-4098-9114-F1BCE43B8B82}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{BE7AA4FD-6859-4010-A6A4-991A7E5BA6AB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BE7AA4FD-6859-4010-A6A4-991A7E5BA6AB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BE7AA4FD-6859-4010-A6A4-991A7E5BA6AB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BE7AA4FD-6859-4010-A6A4-991A7E5BA6AB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F632989E-390D-4098-9114-F1BCE43B8B82}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F632989E-390D-4098-9114-F1BCE43B8B82}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F632989E-390D-4098-9114-F1BCE43B8B82}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F632989E-390D-4098-9114-F1BCE43B8B82}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {9E9FD3BE-FDB5-4256-AC8D-B528D1B5A9BE}
+	EndGlobalSection
+EndGlobal

TAP/TAP/Program.cs

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+namespace TAP
+{
+	internal class Program
+	{
+		static void Main(string[] args)
+		{
+			Console.WriteLine("Hello, World!");
+		}
+	}
+}

TAP/TAP/TAP.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>