System.Threading.Interlocked.Decrement C# (CSharp) Method

        public static extern int Decrement(ref int location);

        protected override void Dispose(bool disposing)
        {
            // Unadvise solution listeners.
            try
            {
                if (disposing)
                {
                    // only decrement the reference count once, regardless of the number of times Dispose is called.
                    // Ignore if Initialize was never called.
                    if (_initialized && !_disposed && Interlocked.Decrement(ref _singleFileGeneratorNodeExtenderReferenceCount) == 0)
                    {
                        ObjectExtenders objectExtenders = (ObjectExtenders)GetService(typeof(ObjectExtenders));
                        objectExtenders.UnregisterExtenderProvider(_singleFileGeneratorNodeExtenderCookie);
                    }

                    foreach (SolutionListener solutionListener in this.solutionListeners)
                    {
                        solutionListener.Dispose();
                    }
                }
            }
            finally
            {
                _disposed = true;
                base.Dispose(disposing);
            }
        }