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https://github.com/coolaj86/fizzbuzz.git
synced 2024-11-16 17:29:04 +00:00
added tcp echo in c-sharp (not my own work)
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27
tcp-echo-csharp/AssemblyInfo.cs
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27
tcp-echo-csharp/AssemblyInfo.cs
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using System.Reflection;
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using System.Runtime.CompilerServices;
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// Information about this assembly is defined by the following attributes.
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// Change them to the values specific to your project.
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[assembly: AssemblyTitle("echo")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("")]
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[assembly: AssemblyCopyright("coolaj86")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
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// The form "{Major}.{Minor}.*" will automatically update the build and revision,
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// and "{Major}.{Minor}.{Build}.*" will update just the revision.
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[assembly: AssemblyVersion("1.0.*")]
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// The following attributes are used to specify the signing key for the assembly,
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// if desired. See the Mono documentation for more information about signing.
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//[assembly: AssemblyDelaySign(false)]
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//[assembly: AssemblyKeyFile("")]
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168
tcp-echo-csharp/Main.cs
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168
tcp-echo-csharp/Main.cs
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// http://msdn.microsoft.com/en-us/library/fx6588te(v=vs.80).aspx
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using System;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading;
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namespace echo
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{
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// State object for reading client data asynchronously
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public class StateObject {
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// Client socket.
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public Socket workSocket = null;
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// Size of receive buffer.
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public const int BufferSize = 64 * 1024;
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// Receive buffer.
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public byte[] buffer = new byte[BufferSize];
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// Received data string.
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public StringBuilder sb = new StringBuilder();
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}
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public class AsynchronousSocketListener {
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// Thread signal.
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public static ManualResetEvent allDone = new ManualResetEvent(false);
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public AsynchronousSocketListener() {
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}
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public static void StartListening() {
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UInt16 port = 11000;
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UInt16 maxConnections = 100;
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// Establish the local endpoint for the socket.
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// The DNS name of the computer
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// running the listener is "host.contoso.com".
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IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());
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IPAddress ipAddress = ipHostInfo.AddressList[0];
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IPEndPoint localEndPoint = new IPEndPoint(ipAddress, port);
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// Create a TCP/IP socket.
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Socket listener = new Socket(AddressFamily.InterNetwork,
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SocketType.Stream, ProtocolType.Tcp );
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// Bind the socket to the local endpoint and listen for incoming connections.
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try {
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listener.Bind(localEndPoint);
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listener.Listen(maxConnections);
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Console.WriteLine("Listening on {0}:{1}", ipAddress, port);
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while (true) {
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// Set the event to nonsignaled state.
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allDone.Reset();
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// Start an asynchronous socket to listen for connections.
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Console.WriteLine("Waiting for a connection...");
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listener.BeginAccept(
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new AsyncCallback(AcceptCallback),
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listener );
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// Wait until a connection is made before continuing.
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allDone.WaitOne();
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}
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} catch (Exception e) {
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Console.WriteLine(e.ToString());
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}
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Console.WriteLine("\nPress ENTER to continue...");
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Console.Read();
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}
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public static void AcceptCallback(IAsyncResult ar) {
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// Signal the main thread to continue.
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allDone.Set();
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// Get the socket that handles the client request.
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Socket listener = (Socket) ar.AsyncState;
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Socket handler = listener.EndAccept(ar);
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// Create the state object.
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StateObject state = new StateObject();
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state.workSocket = handler;
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try {
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handler.BeginReceive( state.buffer, 0, StateObject.BufferSize, 0,
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new AsyncCallback(ReadCallback), state);
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} catch(Exception e) {
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Console.WriteLine ("oh dear");
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Console.WriteLine(e.ToString());
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}
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}
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public static void ReadCallback(IAsyncResult ar) {
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String content = String.Empty;
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// Retrieve the state object and the handler socket
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// from the asynchronous state object.
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StateObject state = (StateObject) ar.AsyncState;
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Socket handler = state.workSocket;
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// Read data from the client socket.
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int bytesRead;
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try {
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bytesRead = handler.EndReceive(ar);
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} catch (Exception e) {
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Console.WriteLine ("Client already disconnected " + e.ToString());
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return;
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}
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if (bytesRead > 0) {
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Console.WriteLine ("some bytes read");
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// There might be more data, so store the data received so far.
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state.sb.Append(Encoding.ASCII.GetString(
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state.buffer,0,bytesRead));
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// Check for end-of-file tag. If it is not there, read
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// more data.
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content = state.sb.ToString();
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if (content.IndexOf("<EOF>") > -1) {
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// All the data has been read from the
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// client. Display it on the console.
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Console.WriteLine("Read {0} bytes from socket. \n Data : {1}",
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content.Length, content );
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// Echo the data back to the client.
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Send(handler, content);
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} else {
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// Not all data received. Get more.
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handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
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new AsyncCallback(ReadCallback), state);
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}
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} else {
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Console.WriteLine ("0 bytes read");
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}
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}
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private static void Send(Socket handler, String data) {
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// Convert the string data to byte data using ASCII encoding.
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byte[] byteData = Encoding.ASCII.GetBytes(data);
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// Begin sending the data to the remote device.
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handler.BeginSend(byteData, 0, byteData.Length, 0,
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new AsyncCallback(SendCallback), handler);
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}
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private static void SendCallback(IAsyncResult ar) {
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try {
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// Retrieve the socket from the state object.
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Socket handler = (Socket) ar.AsyncState;
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// Complete sending the data to the remote device.
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int bytesSent = handler.EndSend(ar);
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Console.WriteLine("Sent {0} bytes to client.", bytesSent);
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handler.Shutdown(SocketShutdown.Both);
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handler.Close();
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} catch (Exception e) {
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Console.WriteLine(e.ToString());
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}
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}
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public static int Main(String[] args) {
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StartListening();
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return 0;
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}
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}
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}
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42
tcp-echo-csharp/echo.csproj
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42
tcp-echo-csharp/echo.csproj
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" ToolsVersion="3.5" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">x86</Platform>
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<ProductVersion>9.0.21022</ProductVersion>
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<SchemaVersion>2.0</SchemaVersion>
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<ProjectGuid>{3F6FA1C0-DF5D-4F8C-BD3C-2DD5F0D911C5}</ProjectGuid>
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<OutputType>Exe</OutputType>
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<RootNamespace>echo</RootNamespace>
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<AssemblyName>echo</AssemblyName>
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<TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug</OutputPath>
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<DefineConstants>DEBUG;</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<PlatformTarget>x86</PlatformTarget>
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<Externalconsole>true</Externalconsole>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
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<DebugType>none</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release</OutputPath>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<PlatformTarget>x86</PlatformTarget>
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<Externalconsole>true</Externalconsole>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="Main.cs" />
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<Compile Include="AssemblyInfo.cs" />
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</ItemGroup>
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<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
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</Project>
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20
tcp-echo-csharp/echo.sln
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20
tcp-echo-csharp/echo.sln
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Microsoft Visual Studio Solution File, Format Version 10.00
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# Visual Studio 2008
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "echo", "echo.csproj", "{3F6FA1C0-DF5D-4F8C-BD3C-2DD5F0D911C5}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x86 = Debug|x86
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Release|x86 = Release|x86
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{3F6FA1C0-DF5D-4F8C-BD3C-2DD5F0D911C5}.Debug|x86.ActiveCfg = Debug|x86
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{3F6FA1C0-DF5D-4F8C-BD3C-2DD5F0D911C5}.Debug|x86.Build.0 = Debug|x86
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{3F6FA1C0-DF5D-4F8C-BD3C-2DD5F0D911C5}.Release|x86.ActiveCfg = Release|x86
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{3F6FA1C0-DF5D-4F8C-BD3C-2DD5F0D911C5}.Release|x86.Build.0 = Release|x86
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EndGlobalSection
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GlobalSection(MonoDevelopProperties) = preSolution
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StartupItem = echo.csproj
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EndGlobalSection
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EndGlobal
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