DBreeze.Storage.FSR.InitRollback C# (CSharp) Method

        private void InitRollback()
        {
            byte[] btWork = new byte[8];
            _fsRollbackHelper.Position = 0;
            _fsRollbackHelper.Read(btWork, 0, 8);
            eofRollback = btWork.To_Int64_BigEndian();

            if (eofRollback == 0)
            {
                if (this._fsRollback.Length >= MaxRollbackFileSize)
                {
                    this._fsRollback.Dispose();
                    this._configuration.FSFactory.Delete(this._fileName + ".rol");
                    //this._fsRollback = new FileStream(this._fileName + ".rol", FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None, _fileStreamBufferSize, FileOptions.WriteThrough);
                    this._fsRollback = this._configuration.FSFactory.CreateType1(this._fileName + ".rol", _fileStreamBufferSize);

                    //no sense to do anything with backup
                }

                return;
            }

            //!!!Check if data file is empty write first root 64 bytes, ??? Where it must stay after rollback restoration???

            //Restoring rollback
            RestoreInitRollback();

            //Checking if we can recreate rollback file
            if (this._fsRollback.Length >= MaxRollbackFileSize)
            {
                this._fsRollback.Dispose();

                this._configuration.FSFactory.Delete(this._fileName + ".rol");
                this._fsRollback = this._configuration.FSFactory.CreateType1(this._fileName + ".rol", _fileStreamBufferSize);
                //File.Delete(this._fileName + ".rol");
                //this._fsRollback = new FileStream(this._fileName + ".rol", FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None, _fileStreamBufferSize, FileOptions.WriteThrough);

                //no sense to do anything with backup
            }

            eofRollback = 0;
            _fsRollbackHelper.Position = 0;
            _fsRollbackHelper.Write(eofRollback.To_8_bytes_array_BigEndian(), 0, 8);

            NET_Flush(_fsRollbackHelper);

            //try
            //{

            //}
            //catch (Exception ex)
            //{
            //    IsOperable = false;
            //    throw DBreezeException.Throw(DBreezeException.eDBreezeExceptions.RESTORE_ROLLBACK_DATA_FAILED, this._fileName, ex);
            //}
        }