Question

I have a simple server that waits for a client to connect, reads the incoming stream, and sends a message back. What I would like to do is have every connection handled by a separate thread. This is my first time working with sockets and threads in C#, and most of the examples I have found are really confusing, so any help or simple examples would be much appreciated.

Here is what I have right now.

using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;

    [STAThread]
    static void Main(string[] args)
    {
        TestServer ts = new TestServer();
         ts.Start();
    }

class TestServer
{
    private readonly int port = 48888;
    private readonly IPAddress ip = IPAddress.Parse("127.0.0.1");

    private TcpListener listener;

    public TestServer()
    {
       this.listener = new TcpListener(this.ip, this.port);
    }

    public void Start()
    {
        this.listener.Start();
        Console.WriteLine("Server Running...");

        Socket s;
        Byte[] incomingBuffer;
        int bytesRead;
        Byte[] Message;

        while (true)
        {
            s = this.listener.AcceptSocket();

            incomingBuffer = new Byte[100];
            bytesRead = s.Receive(incomingBuffer);
            string message = "Hello from the server";
            Message = Encoding.ASCII.GetBytes(message.ToCharArray());

            s.Send(Message);
        }
    }
}

Answer 1

Try this:

public void Start()
{
    this.listener.Start();
    Console.WriteLine("Server running...");

    while (true)
    {
        Socket s = this.listener.AcceptSocket();
        ThreadPool.QueueUserWorkItem(this.WorkMethod, s);
    }
}

private void WorkMethod(object state)
{
    using (Socket s = (Socket)state)
    {
        byte[] buffer = new byte[100];
        int count = s.Receive(buffer);
        string message = "Hello from the server";
        byte[] response = Encoding.ASCII.GetBytes(message);
        s.Send(response);
    }
}