public IDisposable AddNotifiers(params Action<IFile>[] entries)
		{
			var cookie = new DisposableCookie(this, entries);
			lock (_actions)
			{
				_actions.AddRange(entries.Where(x => x != null));
				_refCounter++;
				if (_refCounter == 1)
					Activate();
			}
			return cookie;
		}
        public IDisposable AddNotifiers(params Action <IFile>[] entries)
        {
            var cookie = new DisposableCookie(this, entries);

            lock (_actions)
            {
                _actions.AddRange(entries.Where(x => x != null));
                _refCounter++;
                if (_refCounter == 1)
                {
                    Activate();
                }
            }
            return(cookie);
        }