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();
}