Exemple #1
0
        internal void Persist()
        {
            if (_ids.Count * 4 > _context.DataBlockSize)
            {
                throw new NotImplementedException("Large numbers of user / group id's");
            }

            for (int i = 0; i < _ids.Count; ++i)
            {
                Utilities.WriteBytesLittleEndian(_ids[i], _context.IoBuffer, i * 4);
            }

            // Persist the table that references the block containing the id's
            long blockPos = _context.RawStream.Position + 8;
            byte[] tableBuffer = new byte[8];
            Utilities.WriteBytesLittleEndian(blockPos, tableBuffer, 0);
            _context.RawStream.Write(tableBuffer, 0, 8);

            // Persist the actual Id's
            MetablockWriter writer = new MetablockWriter();
            writer.Write(_context.IoBuffer, 0, _ids.Count * 4);
            writer.Persist(_context.RawStream);
        }
        internal void Persist()
        {
            if (_fragmentBlocks.Count > 0)
            {
                if (_fragmentBlocks.Count * FragmentRecord.RecordSize > _context.DataBlockSize)
                {
                    throw new NotImplementedException("Large numbers of fragments");
                }

                // Persist the table that references the block containing the fragment records
                long blockPos = _context.RawStream.Position + 8;
                byte[] tableBuffer = new byte[8];
                Utilities.WriteBytesLittleEndian(blockPos, tableBuffer, 0);
                _context.RawStream.Write(tableBuffer, 0, 8);

                int recordSize = FragmentRecord.RecordSize;
                byte[] buffer = new byte[_fragmentBlocks.Count * recordSize];
                for (int i = 0; i < _fragmentBlocks.Count; ++i)
                {
                    _fragmentBlocks[i].WriteTo(buffer, i * recordSize);
                }

                MetablockWriter writer = new MetablockWriter();
                writer.Write(buffer, 0, buffer.Length);
                writer.Persist(_context.RawStream);
            }
        }