public HeapOnNodeHeader(byte[] buffer, int offset)
{
ibHnpm = LittleEndianConverter.ToUInt16(buffer, offset + 0);
bSig = ByteReader.ReadByte(buffer, offset + 2);
bClientSig = (OnHeapTypeName)ByteReader.ReadByte(buffer, offset + 3);
hidUserRoot = new HeapID(buffer, offset + 4);
rgbFillLevel = HeapOnNodeHelper.ReadFillLevelMap(buffer, offset + 8, 8);
}
public BTreeOnHeapHeader(byte[] buffer, int offset)
{
bType = (OnHeapTypeName)ByteReader.ReadByte(buffer, offset + 0);
cbKey = ByteReader.ReadByte(buffer, offset + 1);
cbEnt = ByteReader.ReadByte(buffer, offset + 2);
bIdxLevels = ByteReader.ReadByte(buffer, offset + 3);
hidRoot = new HeapID(buffer, offset + 4);
}
public TableContextInfo(byte[] buffer)
{
bType = (OnHeapTypeName)ByteReader.ReadByte(buffer, 0);
byte cCols = ByteReader.ReadByte(buffer, 1);
int position = 2;
for (int index = 0; index < 4; index++)
{
rgib[index] = LittleEndianConverter.ToUInt16(buffer, position);
position += 2;
}
hidRowIndex = new HeapID(buffer, 10);
hnidRows = new HeapOrNodeID(buffer, 14);
// hidIndex - deprecated
position = 22;
for (int index = 0; index < cCols; index++)
{
TableColumnDescriptor descriptor = new TableColumnDescriptor(buffer, position);
rgTCOLDESC.Add(descriptor);
position += TableColumnDescriptor.Length;
}
}
public HeapID hidRoot; // This is the HID that points to the BTH root for this BTHHEADER.
public BTreeOnHeapHeader()
{
bType = OnHeapTypeName.bTypeBTH;
hidRoot = HeapID.EmptyHeapID; // Set to 0 if the BTH is empty
}
public TableContextInfo()
{
bType = OnHeapTypeName.bTypeTC;
hidRowIndex = HeapID.EmptyHeapID;
hnidRows = new HeapOrNodeID(HeapID.EmptyHeapID);
}
