Simple socket server in Unity
<p>I want to use a C# plugin in my Unity project. That plugin should act as a server which will get values from a client so that I'd be able to use those values for further processing.
The issue is that the server has infinite loop. And infinite loops cause Unity to hang. How to handle this?</p>

<p>EDIT: I'm attaching a code snippet of server program. In my opinion, there are 2 points which may be causing problem. The infinite loops and the point where program is suspended as commented in code:</p>

<pre><code>void networkCode()
{
    // Data buffer for incoming data.
    byte[] bytes = new Byte[1024];

    // Establish the local endpoint for the socket.
    // Dns.GetHostName returns the name of the 
    // host running the application.
    IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());
    IPAddress ipAddress = ipHostInfo.AddressList[0];
    IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 1755);

    // Create a TCP/IP socket.
    listener = new Socket(ipAddress.AddressFamily,
        SocketType.Stream, ProtocolType.Tcp);

    // Bind the socket to the local endpoint and 
    // listen for incoming connections.
    try
    {
        listener.Bind(localEndPoint);
        listener.Listen(10);

        // Start listening for connections.
        while (true)
        {
            // Program is suspended while waiting for an incoming connection.
            Debug.Log("HELLO");     //It works
            handler = listener.Accept();
            Debug.Log("HELLO");     //It doesn't work
            data = null;

            // An incoming connection needs to be processed.
            while (true)
            {
                bytes = new byte[1024];
                int bytesRec = handler.Receive(bytes);
                data += Encoding.ASCII.GetString(bytes, 0, bytesRec);
                if (data.IndexOf("&lt;EOF&gt;") &gt; -1)
                {
                    break;
                }

                System.Threading.Thread.Sleep(1);
            }   

            System.Threading.Thread.Sleep(1);
        }
    }
    catch (Exception e)
    {
        Debug.Log(e.ToString());
    }
}
</code></pre>

<p>EDIT: After help from @Programmer, the C# plugin is complete. But Unity is not reading the correct values. I'm attaching the Unity side code:</p>

<pre><code>using UnityEngine;
using System;

using SyncServerDLL;    //That's our library

public class receiver : MonoBehaviour {

    SynchronousSocketListener obj;   //That's object to call server methods

    // Use this for initialization
    void Start() {
        obj = new SynchronousSocketListener ();
        obj.startServer ();
    }

    // Update is called once per frame
    void Update() {
        Debug.Log (obj.data);
    }
}
</code></pre>

<p>I have tested SynchronousSocketListener class thoroughly in Visual Studio. It is giving good results there.</p>