Singleton.cs

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using System;

namespace SharedObjects
{
    public static class Singleton<T> where T : class, new()
    {
        private static T instance;
        private static readonly object lockObj = new object();

        public static T Instance
        {
            get
            {
                if (instance != null)
                    return instance;

                lock (lockObj)
                {
                    if (instance == null)
                    {
                        try
                        {
                            instance = new T();
                        }
                        catch (Exception ex) // ex is for debugging only
                        {
                            instance = null;
                        }
                    }
                    return instance;
                }
            }
        }
    }
}