public IndexNode(IndexNodeSaveFn store, int storeOverhead, Index index, bool isRoot, byte[] buffer, int offset) { _store = store; _storageOverhead = storeOverhead; _index = index; _isRoot = isRoot; _header = new IndexHeader(buffer, offset + 0); _totalSpaceAvailable = _header.AllocatedSizeOfEntries; _entries = new List<IndexEntry>(); int pos = (int)_header.OffsetToFirstEntry; while (pos < _header.TotalSizeOfEntries) { IndexEntry entry = new IndexEntry(index.IsFileIndex); entry.Read(buffer, offset + pos); _entries.Add(entry); if ((entry.Flags & IndexEntryFlags.End) != 0) { break; } pos += entry.Size; } }
public IndexBlock(Index index, bool isRoot, IndexEntry parentEntry, BiosParameterBlock bpb) : base("INDX", bpb.BytesPerSector) { _index = index; _isRoot = isRoot; Stream stream = index.AllocationStream; _streamPosition = parentEntry.ChildrenVirtualCluster * bpb.BytesPerSector * bpb.SectorsPerCluster; stream.Position = _streamPosition; byte[] buffer = Utilities.ReadFully(stream, (int)index.IndexBufferSize); FromBytes(buffer, 0); }
private IndexBlock(Index index, bool isRoot, long vcn, BiosParameterBlock bpb) : base("INDX", bpb.BytesPerSector, bpb.IndexBufferSize) { _index = index; _isRoot = isRoot; _indexBlockVcn = (ulong)vcn; _streamPosition = vcn * bpb.BytesPerSector * bpb.SectorsPerCluster; _node = new IndexNode(WriteToDisk, UpdateSequenceSize, _index, isRoot, (uint)bpb.IndexBufferSize - FieldSize); WriteToDisk(); }
public IndexNode(IndexNodeSaveFn store, int storeOverhead, Index index, bool isRoot, uint allocatedSize) { _store = store; _storageOverhead = storeOverhead; _index = index; _isRoot = isRoot; _header = new IndexHeader(allocatedSize); _totalSpaceAvailable = allocatedSize; IndexEntry endEntry = new IndexEntry(_index.IsFileIndex); endEntry.Flags |= IndexEntryFlags.End; _entries = new List<IndexEntry>(); _entries.Add(endEntry); _header.OffsetToFirstEntry = (uint)(IndexHeader.Size + storeOverhead); _header.TotalSizeOfEntries = (uint)(_header.OffsetToFirstEntry + endEntry.Size); }
internal static IndexBlock Initialize(Index index, bool isRoot, IndexEntry parentEntry, BiosParameterBlock bpb) { return new IndexBlock(index, isRoot, parentEntry.ChildrenVirtualCluster, bpb); }
public Index GetIndex(string name) { Index idx = _indexCache[name]; if (idx == null) { idx = new Index(this, name, _context.BiosParameterBlock, _context.UpperCase); _indexCache[name] = idx; } return idx; }
public static void Create(AttributeType attrType, AttributeCollationRule collationRule, File file, string name) { Index idx = new Index(attrType, collationRule, file, name, file.Context.BiosParameterBlock, file.Context.UpperCase); idx.WriteRootNodeToDisk(); }
public IndexView(Index index) { _index = index; }
internal static IndexBlock Initialize(Index index, bool isRoot, IndexEntry parentEntry, BiosParameterBlock bpb) { return(new IndexBlock(index, isRoot, parentEntry.ChildrenVirtualCluster, bpb)); }