ThreadPool based Tcp server : Socket Server « Network « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Network
3. Socket Server

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;

class MainClass 
{
   public static void Main()
   {
      TcpListener client = new TcpListener(9050);
      client.Start();

      Console.WriteLine("Waiting for clients...");
      while(true)
      {
         while (!client.Pending())
         {
            Thread.Sleep(1000);
         }
         ConnectionThread newconnection = new ConnectionThread(client);
      }
   }
}

class ConnectionThread
{
   public TcpListener threadListener;

   public ConnectionThread(TcpListener lis){
     threadListener = lis;
     ThreadPool.QueueUserWorkItem(new WaitCallback(HandleConnection));

   }
   
   public void HandleConnection(object state)
   {
      int recv;
      byte[] data = new byte[1024];

      TcpClient client = threadListener.AcceptTcpClient();
      NetworkStream ns = client.GetStream();

      string welcome = "Welcome";
      data = Encoding.ASCII.GetBytes(welcome);
      ns.Write(data, 0, data.Length);

      while(true)
      {
         data = new byte[1024];
         recv = ns.Read(data, 0, data.Length);
         ns.Write(data, 0, recv);
      }
      ns.Close();
      client.Close();
   }
}