Lucene.Net.Store.MockDirectoryWrapper.Init C# (CSharp) Method

        private void Init()
        {
            lock (this)
            {
                if (OpenFiles == null)
                {
                    OpenFiles = new Dictionary<string, int>();
                    OpenFilesDeleted = new HashSet<string>();
                }

                if (CreatedFiles == null)
                {
                    CreatedFiles = new HashSet<string>();
                }
                if (UnSyncedFiles == null)
                {
                    UnSyncedFiles = new HashSet<string>();
                }
            }
        }