public FixedArrayDataBlock(H5BinaryReader reader, Superblock superblock, FixedArrayHeader header, uint chunkSizeLength) { // H5FAdblock.c (H5FA__dblock_alloc) this.ElementsPerPage = 1UL << header.PageBits; this.PageCount = 0UL; var pageBitmapSize = 0UL; if (header.EntriesCount > this.ElementsPerPage) { /* Compute number of pages */ this.PageCount = (header.EntriesCount + this.ElementsPerPage - 1) / this.ElementsPerPage; /* Compute size of 'page init' flag array, in bytes */ pageBitmapSize = (this.PageCount + 7) / 8; } // signature var signature = reader.ReadBytes(4); H5Utils.ValidateSignature(signature, FixedArrayDataBlock.Signature); // version this.Version = reader.ReadByte(); // client ID this.ClientID = (ClientID)reader.ReadByte(); // header address this.HeaderAddress = superblock.ReadOffset(reader); // page bitmap if (this.PageCount > 0) { this.PageBitmap = reader.ReadBytes((int)pageBitmapSize); } // elements else { this.Elements = ArrayIndexUtils.ReadElements(reader, superblock, header.EntriesCount, this.ClientID, chunkSizeLength); } // checksum this.Checksum = reader.ReadUInt32(); }
public ExtensibleArrayIndexBlock(H5BinaryReader reader, Superblock superblock, ExtensibleArrayHeader header, uint chunkSizeLength) { // H5EAiblock.c (H5EA__iblock_alloc) ulong secondaryBlockDataBlockAddressCount = 2 * (ulong)Math.Log(header.SecondaryBlockMinimumDataBlockPointerCount, 2); ulong dataBlockPointerCount = (ulong)(2 * (header.SecondaryBlockMinimumDataBlockPointerCount - 1)); ulong secondaryBlockPointerCount = header.SecondaryBlockCount - secondaryBlockDataBlockAddressCount; // signature var signature = reader.ReadBytes(4); H5Utils.ValidateSignature(signature, ExtensibleArrayIndexBlock.Signature); // version this.Version = reader.ReadByte(); // client ID this.ClientID = (ClientID)reader.ReadByte(); // header address this.HeaderAddress = superblock.ReadOffset(reader); // elements this.Elements = ArrayIndexUtils.ReadElements(reader, superblock, header.IndexBlockElementsCount, this.ClientID, chunkSizeLength); // data block addresses this.DataBlockAddresses = new ulong[dataBlockPointerCount]; for (ulong i = 0; i < dataBlockPointerCount; i++) { this.DataBlockAddresses[i] = superblock.ReadOffset(reader); } // secondary block addresses this.SecondaryBlockAddresses = new ulong[secondaryBlockPointerCount]; for (ulong i = 0; i < secondaryBlockPointerCount; i++) { this.SecondaryBlockAddresses[i] = superblock.ReadOffset(reader); } // checksum this.Checksum = reader.ReadUInt32(); }
public ExtensibleArrayDataBlock(H5BinaryReader reader, Superblock superblock, ExtensibleArrayHeader header, uint chunkSizeLength, ulong elementsCount) { // H5EAdblock.c (H5EA__dblock_alloc) this.PageCount = 0UL; if (elementsCount > header.DataBlockPageElementsCount) { /* Set the # of pages in the data block */ this.PageCount = elementsCount / header.DataBlockPageElementsCount; } // H5EAcache.c (H5EA__cache_dblock_deserialize) // signature var signature = reader.ReadBytes(4); H5Utils.ValidateSignature(signature, ExtensibleArrayDataBlock.Signature); // version this.Version = reader.ReadByte(); // client ID this.ClientID = (ClientID)reader.ReadByte(); // header address this.HeaderAddress = superblock.ReadOffset(reader); // block offset this.BlockOffset = H5Utils.ReadUlong(reader, header.ArrayOffsetsSize); // elements if (this.PageCount == 0) { this.Elements = ArrayIndexUtils.ReadElements(reader, superblock, elementsCount, this.ClientID, chunkSizeLength); } // checksum this.Checksum = reader.ReadUInt32(); }