public SymbolTableEntry(H5BinaryReader reader, Superblock superblock) : base(reader)
{
_superblock = superblock;
// link name offset
this.LinkNameOffset = superblock.ReadOffset(reader);
// object header address
this.HeaderAddress = superblock.ReadOffset(reader);
// cache type
this.CacheType = (CacheType)reader.ReadUInt32();
// reserved
reader.ReadUInt32();
// scratch pad
var before = reader.BaseStream.Position;
this.ScratchPad = this.CacheType switch
{
CacheType.NoCache => null,
CacheType.ObjectHeader => new ObjectHeaderScratchPad(reader, superblock),
CacheType.SymbolicLink => new SymbolicLinkScratchPad(reader),
_ => throw new NotSupportedException()
};
var after = reader.BaseStream.Position;
var length = after - before;
// read as many bytes as needed to read a total of 16 bytes, even if the scratch pad is not used
reader.ReadBytes((int)(16 - length));
}
public H5S_SEL_POINTS(H5BinaryReader reader) : base(reader)
{
// version
this.Version = reader.ReadUInt32();
// reserved
reader.ReadBytes(4);
// length
var length = reader.ReadUInt32();
// rank
this.Rank = reader.ReadUInt32();
// point count
this.PointCount = reader.ReadUInt32();
// point data
this.PointData = new uint[this.Rank * this.PointCount];
for (int i = 0; i < (length - 8) / 4; i++)
{
this.PointData[i] = reader.ReadUInt32();
}
}
public FractalHeapIndirectBlock(FractalHeapHeader header, H5BinaryReader reader, Superblock superblock, uint rowCount) : base(reader)
{
_superblock = superblock;
this.RowCount = rowCount;
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, FractalHeapIndirectBlock.Signature);
// version
this.Version = reader.ReadByte();
// heap header address
this.HeapHeaderAddress = superblock.ReadOffset(reader);
// block offset
var blockOffsetFieldSize = (int)Math.Ceiling(header.MaximumHeapSize / 8.0);
this.BlockOffset = H5Utils.ReadUlong(this.Reader, (ulong)blockOffsetFieldSize);
// H5HFcache.c (H5HF__cache_iblock_deserialize)
var length = rowCount * header.TableWidth;
this.Entries = new FractalHeapEntry[length];
for (uint i = 0; i < this.Entries.Length; i++)
{
/* Decode child block address */
this.Entries[i].Address = _superblock.ReadOffset(reader);
/* Check for heap with I/O filters */
if (header.IOFilterEncodedLength > 0)
{
/* Decode extra information for direct blocks */
if (i < (header.MaxDirectRows * header.TableWidth))
{
/* Size of filtered direct block */
this.Entries[i].FilteredSize = _superblock.ReadLength(reader);
/* I/O filter mask for filtered direct block */
this.Entries[i].FilterMask = reader.ReadUInt32();
}
}
/* Count child blocks */
if (!superblock.IsUndefinedAddress(this.Entries[i].Address))
{
this.ChildCount++;
this.MaxChildIndex = i;
}
}
// checksum
this.Checksum = reader.ReadUInt32();
}
public FillValueMessage(H5BinaryReader reader) : base(reader)
{
// version
this.Version = reader.ReadByte();
uint size;
switch (this.Version)
{
case 1:
this.AllocationTime = (SpaceAllocationTime)reader.ReadByte();
this.FillTime = (FillValueWriteTime)reader.ReadByte();
this.IsDefined = reader.ReadByte() == 1;
size = reader.ReadUInt32();
this.Value = reader.ReadBytes((int)size);
break;
case 2:
this.AllocationTime = (SpaceAllocationTime)reader.ReadByte();
this.FillTime = (FillValueWriteTime)reader.ReadByte();
this.IsDefined = reader.ReadByte() == 1;
if (this.IsDefined)
{
size = reader.ReadUInt32();
this.Value = reader.ReadBytes((int)size);
}
break;
case 3:
var flags = reader.ReadByte();
this.AllocationTime = (SpaceAllocationTime)((flags & 0x03) >> 0); // take only bits 0 and 1
this.FillTime = (FillValueWriteTime)((flags & 0x0C) >> 2); // take only bits 2 and 3
this.IsDefined = (flags & (1 << 5)) > 0; // take only bit 5
if (this.IsDefined)
{
size = reader.ReadUInt32();
this.Value = reader.ReadBytes((int)size);
}
break;
default:
break;
}
}
internal DataLayoutMessage12(H5BinaryReader reader, Superblock superblock, byte version) : base(reader)
{
// version
this.Version = version;
// rank
this.Rank = reader.ReadByte();
// layout class
this.LayoutClass = (LayoutClass)reader.ReadByte();
// reserved
reader.ReadBytes(5);
// data address
this.Address = this.LayoutClass switch
{
LayoutClass.Compact => ulong.MaxValue, // invalid address
LayoutClass.Contiguous => superblock.ReadOffset(reader),
LayoutClass.Chunked => superblock.ReadOffset(reader),
_ => throw new NotSupportedException($"The layout class '{this.LayoutClass}' is not supported.")
};
// dimension sizes
this.DimensionSizes = new uint[this.Rank];
for (int i = 0; i < this.Rank; i++)
{
this.DimensionSizes[i] = reader.ReadUInt32();
}
// dataset element size
if (this.LayoutClass == LayoutClass.Chunked)
{
this.DatasetElementSize = reader.ReadUInt32();
}
// compact data size
if (this.LayoutClass == LayoutClass.Compact)
{
var compactDataSize = reader.ReadUInt32();
this.CompactData = reader.ReadBytes((int)compactDataSize);
}
else
{
this.CompactData = new byte[0];
}
}
public FractalHeapDirectBlock(FractalHeapHeader header, H5BinaryReader reader, Superblock superblock) : base(reader)
{
_superblock = superblock;
var headerSize = 0UL;
// signature
var signature = reader.ReadBytes(4);
headerSize += 4;
H5Utils.ValidateSignature(signature, FractalHeapDirectBlock.Signature);
// version
this.Version = reader.ReadByte();
headerSize += 1;
// heap header address
this.HeapHeaderAddress = superblock.ReadOffset(reader);
headerSize += superblock.OffsetsSize;
// block offset
var blockOffsetFieldSize = (int)Math.Ceiling(header.MaximumHeapSize / 8.0);
this.BlockOffset = H5Utils.ReadUlong(this.Reader, (ulong)blockOffsetFieldSize);
headerSize += (ulong)blockOffsetFieldSize;
// checksum
if (header.Flags.HasFlag(FractalHeapHeaderFlags.DirectBlocksAreChecksummed))
{
this.Checksum = reader.ReadUInt32();
headerSize += 4;
}
this.HeaderSize = headerSize;
}
public FixedArrayHeader(H5BinaryReader reader, Superblock superblock, uint chunkSizeLength) : base(reader)
{
_superblock = superblock;
_chunkSizeLength = chunkSizeLength;
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, FixedArrayHeader.Signature);
// version
this.Version = reader.ReadByte();
// client ID
this.ClientID = (ClientID)reader.ReadByte();
// entry size
this.EntrySize = reader.ReadByte();
// page bits
this.PageBits = reader.ReadByte();
// entries count
this.EntriesCount = superblock.ReadLength(reader);
// data block address
this.DataBlockAddress = superblock.ReadOffset(reader);
// checksum
this.Checksum = reader.ReadUInt32();
}
public BTree2InternalNode(H5BinaryReader reader, Superblock superblock, BTree2Header <T> header, ushort recordCount, int nodeLevel, Func <T> decodeKey)
: base(reader, header, recordCount, BTree2InternalNode <T> .Signature, decodeKey)
{
this.NodePointers = new BTree2NodePointer[recordCount + 1];
// H5B2cache.c (H5B2__cache_int_deserialize)
for (int i = 0; i < recordCount + 1; i++)
{
// address
this.NodePointers[i].Address = superblock.ReadOffset(reader);
// record count
var childRecordCount = H5Utils.ReadUlong(reader, header.MaxRecordCountSize);
this.NodePointers[i].RecordCount = (ushort)childRecordCount;
// total record count
if (nodeLevel > 1)
{
var totalChildRecordCount = H5Utils.ReadUlong(reader, header.NodeInfos[nodeLevel - 1].CumulatedTotalRecordCountSize);
this.NodePointers[i].TotalRecordCount = totalChildRecordCount;
}
else
{
this.NodePointers[i].TotalRecordCount = childRecordCount;
}
}
// checksum
this.Checksum = reader.ReadUInt32();
}
public H5S_SEL_ALL(H5BinaryReader reader) : base(reader)
{
// version
this.Version = reader.ReadUInt32();
// reserved
reader.ReadBytes(8);
}
public ObjectReferenceCountMessage(H5BinaryReader reader) : base(reader)
{
// version
this.Version = reader.ReadByte();
// reference count
this.ReferenceCount = reader.ReadUInt32();
}
public VdsGlobalHeapBlock(H5BinaryReader reader, Superblock superblock) : base(reader)
{
// version
this.Version = reader.ReadUInt32();
// entry count
this.EntryCount = superblock.ReadLength(reader);
// vds dataset entries
this.VdsDatasetEntries = new List <VdsDatasetEntry>((int)this.EntryCount);
for (ulong i = 0; i < this.EntryCount; i++)
{
this.VdsDatasetEntries.Add(new VdsDatasetEntry(reader));
}
// checksum
this.Checksum = reader.ReadUInt32();
}
public DatatypeMessage(H5BinaryReader reader) : base(reader)
{
this.ClassVersion = reader.ReadByte();
this.BitField = this.Class switch
{
DatatypeMessageClass.FixedPoint => new FixedPointBitFieldDescription(reader),
DatatypeMessageClass.FloatingPoint => new FloatingPointBitFieldDescription(reader),
DatatypeMessageClass.Time => new TimeBitFieldDescription(reader),
DatatypeMessageClass.String => new StringBitFieldDescription(reader),
DatatypeMessageClass.BitField => new BitFieldBitFieldDescription(reader),
DatatypeMessageClass.Opaque => new OpaqueBitFieldDescription(reader),
DatatypeMessageClass.Compound => new CompoundBitFieldDescription(reader),
DatatypeMessageClass.Reference => new ReferenceBitFieldDescription(reader),
DatatypeMessageClass.Enumerated => new EnumerationBitFieldDescription(reader),
DatatypeMessageClass.VariableLength => new VariableLengthBitFieldDescription(reader),
DatatypeMessageClass.Array => new ArrayBitFieldDescription(reader),
_ => throw new NotSupportedException($"The data type message class '{this.Class}' is not supported.")
};
this.Size = reader.ReadUInt32();
var memberCount = 1;
if (this.Class == DatatypeMessageClass.Compound)
{
memberCount = ((CompoundBitFieldDescription)this.BitField).MemberCount;
}
this.Properties = new List <DatatypePropertyDescription>(memberCount);
for (int i = 0; i < memberCount; i++)
{
DatatypePropertyDescription?properties = this.Class switch
{
DatatypeMessageClass.FixedPoint => new FixedPointPropertyDescription(reader),
DatatypeMessageClass.FloatingPoint => new FloatingPointPropertyDescription(reader),
DatatypeMessageClass.Time => new TimePropertyDescription(reader),
DatatypeMessageClass.String => null,
DatatypeMessageClass.BitField => new BitFieldPropertyDescription(reader),
DatatypeMessageClass.Opaque => new OpaquePropertyDescription(reader, this.GetOpaqueTagByteLength()),
DatatypeMessageClass.Compound => new CompoundPropertyDescription(reader, this.Version, this.Size),
DatatypeMessageClass.Reference => null,
DatatypeMessageClass.Enumerated => new EnumerationPropertyDescription(reader, this.Version, this.Size, this.GetEnumMemberCount()),
DatatypeMessageClass.VariableLength => new VariableLengthPropertyDescription(reader),
DatatypeMessageClass.Array => new ArrayPropertyDescription(reader, this.Version),
_ => throw new NotSupportedException($"The class '{this.Class}' is not supported on data type messages of version {this.Version}.")
};
if (properties is not null)
{
this.Properties.Add(properties);
}
}
}
public ObjectModificationMessage(H5BinaryReader reader) : base(reader)
{
// version
this.Version = reader.ReadByte();
// reserved
reader.ReadBytes(3);
// seconds after unix epoch
this.SecondsAfterUnixEpoch = reader.ReadUInt32();
}
public DataBlockPage(H5BinaryReader reader, ulong elementCount, Func <H5BinaryReader, T> decode)
{
// elements
this.Elements = Enumerable
.Range(0, (int)elementCount)
.Select(i => decode(reader))
.ToArray();
// checksum
this.Checksum = reader.ReadUInt32();
}
public FreeSpaceManagerHeader(H5BinaryReader reader, Superblock superblock) : base(reader)
{
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, FreeSpaceManagerHeader.Signature);
// version
this.Version = reader.ReadByte();
// client ID
this.ClientId = (ClientId)reader.ReadByte();
// total space tracked
this.TotalSpaceTracked = superblock.ReadLength(reader);
// total sections count
this.TotalSectionsCount = superblock.ReadLength(reader);
// serialized sections count
this.SerializedSectionsCount = superblock.ReadLength(reader);
// un-serialized sections count
this.UnSerializedSectionsCount = superblock.ReadLength(reader);
// section classes count
this.SectionClassesCount = reader.ReadUInt16();
// shrink percent
this.ShrinkPercent = reader.ReadUInt16();
// expand percent
this.ExpandPercent = reader.ReadUInt16();
// address space size
this.AddressSpaceSize = reader.ReadUInt16();
// maximum section size
this.MaximumSectionSize = superblock.ReadLength(reader);
// serialized section list address
this.SerializedSectionListAddress = superblock.ReadOffset(reader);
// serialized section list used
this.SerializedSectionListUsed = superblock.ReadLength(reader);
// serialized section list allocated size
this.SerializedSectionListAllocatedSize = superblock.ReadLength(reader);
// checksum
this.Checksum = reader.ReadUInt32();
}
public DataspaceSelection(H5BinaryReader reader) : base(reader)
{
this.SelectionType = (SelectionType)reader.ReadUInt32();
this.SelectionInfo = this.SelectionType switch
{
SelectionType.H5S_SEL_NONE => new H5S_SEL_NONE(reader),
SelectionType.H5S_SEL_POINTS => new H5S_SEL_POINTS(reader),
SelectionType.H5S_SEL_HYPER => new H5S_SEL_HYPER(reader),
SelectionType.H5S_SEL_ALL => new H5S_SEL_ALL(reader),
_ => throw new NotSupportedException($"The dataspace selection type '{this.SelectionType}' is not supported.")
};
}
public SharedObjectHeaderMessageTable(H5BinaryReader reader) : base(reader)
{
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, SharedObjectHeaderMessageTable.Signature);
//
#warning implement this correctly
// checksum
this.Checksum = reader.ReadUInt32();
}
public H5S_SEL_HYPER(H5BinaryReader reader) : base(reader)
{
// version
this.Version = reader.ReadUInt32();
// hyperslab selection info
this.HyperslabSelectionInfo = this.Version switch
{
1 => new HyperslabSelectionInfo1(reader),
2 => new HyperslabSelectionInfo2(reader),
_ => throw new NotSupportedException($"Only {nameof(H5S_SEL_HYPER)} of version 1 or 2 are supported.")
};
}
public ExtensibleArrayIndexBlock(
H5BinaryReader reader,
Superblock superblock,
ExtensibleArrayHeader header,
Func <H5BinaryReader, T> decode)
{
// H5EAiblock.c (H5EA__iblock_alloc)
this.SecondaryBlockDataBlockAddressCount = 2 * (ulong)Math.Log(header.SecondaryBlockMinimumDataBlockPointerCount, 2);
ulong dataBlockPointerCount = (ulong)(2 * (header.SecondaryBlockMinimumDataBlockPointerCount - 1));
ulong secondaryBlockPointerCount = header.SecondaryBlockCount - this.SecondaryBlockDataBlockAddressCount;
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, ExtensibleArrayIndexBlock <T> .Signature);
// version
this.Version = reader.ReadByte();
// client ID
this.ClientID = (ClientID)reader.ReadByte();
// header address
this.HeaderAddress = superblock.ReadOffset(reader);
// elements
this.Elements = Enumerable
.Range(0, header.IndexBlockElementsCount)
.Select(i => decode(reader))
.ToArray();
// 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 SharedMessageRecordList(H5BinaryReader reader) : base(reader)
{
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, SharedMessageRecordList.Signature);
// share message records
this.SharedMessageRecords = new List <SharedMessageRecord>();
#warning how to know how many?
// checksum
this.Checksum = reader.ReadUInt32();
}
public HugeObjectsFractalHeapIdSubType4(H5BinaryReader reader, Superblock superblock, H5BinaryReader localReader)
{
// address
this.Address = superblock.ReadOffset(localReader);
// length
this.Length = superblock.ReadLength(localReader);
// filter mask
this.FilterMask = localReader.ReadUInt32();
// de-filtered size
this.DeFilteredSize = superblock.ReadLength(localReader);
}
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 ExtensibleArrayDataBlock(H5BinaryReader reader, Superblock superblock, ExtensibleArrayHeader header, ulong elementCount, Func <H5BinaryReader, T> decode)
{
// H5EAdblock.c (H5EA__dblock_alloc)
this.PageCount = 0UL;
if (elementCount > header.DataBlockPageElementsCount)
{
/* Set the # of pages in the data block */
this.PageCount = elementCount / header.DataBlockPageElementsCount;
}
// H5EAcache.c (H5EA__cache_dblock_deserialize)
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, ExtensibleArrayDataBlock <T> .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 = Enumerable
.Range(0, (int)elementCount)
.Select(i => decode(reader))
.ToArray();
}
else
{
this.Elements = new T[0];
}
// 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 static DataBlockElement[] ReadElements(H5BinaryReader reader,
Superblock superblock,
ulong elementsCount,
ClientID clientID,
uint chunkSizeLength)
{
var elements = new DataBlockElement[elementsCount];
switch (clientID)
{
case ClientID.NonFilteredDatasetChunks:
for (ulong i = 0; i < elementsCount; i++)
{
elements[i] = new DataBlockElement()
{
Address = superblock.ReadOffset(reader)
};
}
break;
case ClientID.FilteredDatasetChunks:
for (ulong i = 0; i < elementsCount; i++)
{
elements[i] = new DataBlockElement()
{
Address = superblock.ReadOffset(reader),
ChunkSize = (uint)H5Utils.ReadUlong(reader, chunkSizeLength),
FilterMask = reader.ReadUInt32()
};
}
break;
default:
throw new Exception($"Client ID '{clientID}' is not supported.");
}
return(elements);
}
public FreeSpaceSectionList(H5BinaryReader reader, Superblock superblock) : base(reader)
{
_superblock = superblock;
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, FreeSpaceSectionList.Signature);
// version
this.Version = reader.ReadByte();
// free space manager header address
this.FreeSpaceManagerHeaderAddress = superblock.ReadOffset(reader);
#warning implement everything
// checksum
this.Checksum = reader.ReadUInt32();
}
public ExtensibleArrayHeader(H5BinaryReader reader, Superblock superblock, uint chunkSizeLength) : base(reader)
{
_superblock = superblock;
_chunkSizeLength = chunkSizeLength;
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, ExtensibleArrayHeader.Signature);
// version
this.Version = reader.ReadByte();
// client ID
this.ClientID = (ClientID)reader.ReadByte();
// byte fields
this.ElementSize = reader.ReadByte();
this.ExtensibleArrayMaximumNumberOfElementsBits = reader.ReadByte();
this.IndexBlockElementsCount = reader.ReadByte();
this.DataBlockMininumElementsCount = reader.ReadByte();
this.SecondaryBlockMinimumDataBlockPointerCount = reader.ReadByte();
this.DataBlockPageMaximumNumberOfElementsBits = reader.ReadByte();
// length fields
this.SecondaryBlocksCount = superblock.ReadLength(reader);
this.SecondaryBlocksSize = superblock.ReadLength(reader);
this.DataBlocksCount = superblock.ReadLength(reader);
this.DataBlocksSize = superblock.ReadLength(reader);
this.MaximumIndexSet = superblock.ReadLength(reader);
this.ElementsCount = superblock.ReadLength(reader);
// index block address
this.IndexBlockAddress = superblock.ReadOffset(reader);
// checksum
this.Checksum = reader.ReadUInt32();
// initialize
this.Initialize();
}
public DriverInfoBlock(H5BinaryReader reader) : base(reader)
{
// version
this.Version = reader.ReadByte();
// reserved
reader.ReadBytes(3);
// driver info size
this.DriverInfoSize = reader.ReadUInt32();
// driver id
this.DriverId = H5Utils.ReadFixedLengthString(reader, 8);
// driver info
this.DriverInfo = this.DriverId switch
{
"NCSAmulti" => new MultiDriverInfo(reader),
"NCSAfami" => new FamilyDriverInfo(reader),
_ => throw new NotSupportedException($"The driver ID '{this.DriverId}' is not supported.")
};
}
public ExtensibleArrayDataBlock(H5BinaryReader reader, Superblock superblock, ExtensibleArrayHeader header, uint chunkSizeLength, ulong elementsCount)
{
// H5EAdblock.c (H5EA__dblock_alloc)
this.PageCount = 0UL;
if (elementsCount > header.DataBlockPageElementsCount)
{
/* Set the # of pages in the data block */
this.PageCount = elementsCount / header.DataBlockPageElementsCount;
}
// H5EAcache.c (H5EA__cache_dblock_deserialize)
// signature
var signature = reader.ReadBytes(4);
H5Utils.ValidateSignature(signature, ExtensibleArrayDataBlock.Signature);
// version
this.Version = reader.ReadByte();
// client ID
this.ClientID = (ClientID)reader.ReadByte();
// header address
this.HeaderAddress = superblock.ReadOffset(reader);
// block offset
this.BlockOffset = H5Utils.ReadUlong(reader, header.ArrayOffsetsSize);
// elements
if (this.PageCount == 0)
{
this.Elements = ArrayIndexUtils.ReadElements(reader, superblock, elementsCount, this.ClientID, chunkSizeLength);
}
// checksum
this.Checksum = reader.ReadUInt32();
}
public FilterDescription(H5BinaryReader reader, byte version) : base(reader)
{
// filter identifier
this.Identifier = (FilterIdentifier)reader.ReadInt16();
// name length
this.NameLength = version switch
{
1 => reader.ReadUInt16(),
2 when(ushort) this.Identifier >= 256 => reader.ReadUInt16(),
2 when(ushort) this.Identifier < 256 => 0,
_ => throw new NotSupportedException($"Only version 1 or 2 instances of the {nameof(FilterDescription)} type are supported.")
};
// flags
this.Flags = (FilterFlags)reader.ReadUInt16();
// client data value count
var clientDataValueCount = reader.ReadUInt16();
// name
this.Name = this.NameLength > 0 ? H5Utils.ReadNullTerminatedString(reader, pad: true) : string.Empty;
// client data
this.ClientData = new uint[clientDataValueCount];
for (ushort i = 0; i < clientDataValueCount; i++)
{
this.ClientData[i] = reader.ReadUInt32();
}
// padding
if (version == 1 && clientDataValueCount % 2 != 0)
{
reader.ReadBytes(4);
}
}
