C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

#pragma warning disable 0628 //suppress "new protected member declared in sealed class"

namespace Application_Messaging
{
    //singleton class because we only want one message queue
    // note: A sealed class cannot be inherited
    public sealed class class_MessageQueue
    {

        private static class_MessageQueue instance = null;
        private static readonly object padlock = new object();
        private Thread threadWorker;

        //this is a singleton, only the Instance property may be used
        protected class_MessageQueue()
        {
        }

        //property to get an instance to the class
        public static class_MessageQueue Instance
        {
            get
            {
                lock (padlock)
                {
                    if (instance==null)
                    {
                        instance = new class_MessageQueue();

                        instance.threadWorker = new Thread(new ThreadStart(MessageWorker));
                        instance.threadWorker.Start();
                    }
                    return instance;
                }
            }
        }

        private void MessageWorker()
        {
            //will be a loop to dequeue messages
        }


    }//end of: class class_MessageQueue

}//end of: namespace