BTHeaderRec Struct Reference

#include <HFSVolumes.h>

Data Fields
UInt16	treeDepth
UInt32	rootNode
UInt32	leafRecords
UInt32	firstLeafNode
UInt32	lastLeafNode
UInt16	nodeSize
UInt16	maxKeyLength
UInt32	totalNodes
UInt32	freeNodes
UInt16	reserved1
UInt32	clumpSize
UInt8	btreeType
UInt8	reserved2
UInt32	attributes
UInt32	reserved3 [16]

Detailed Description

BTHeaderRec – The first record of a B-tree header node

Field Documentation

attributes

UInt32 BTHeaderRec::attributes

reserved

btreeType

UInt8 BTHeaderRec::btreeType

reserved

clumpSize

UInt32 BTHeaderRec::clumpSize

unused

firstLeafNode

UInt32 BTHeaderRec::firstLeafNode

number of leaf records in all leaf nodes

freeNodes

UInt32 BTHeaderRec::freeNodes

total number of nodes in tree

lastLeafNode

UInt32 BTHeaderRec::lastLeafNode

node number of first leaf node

leafRecords

UInt32 BTHeaderRec::leafRecords

node number of root node

maxKeyLength

UInt16 BTHeaderRec::maxKeyLength

size of a node, in bytes

nodeSize

UInt16 BTHeaderRec::nodeSize

node number of last leaf node

reserved1

UInt16 BTHeaderRec::reserved1

number of unused (free) nodes in tree

reserved2

UInt8 BTHeaderRec::reserved2

reserved

reserved3

UInt32 BTHeaderRec::reserved3[16]

persistent attributes about the tree

rootNode

UInt32 BTHeaderRec::rootNode

maximum height (usually leaf nodes)

totalNodes

UInt32 BTHeaderRec::totalNodes

reserved

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The documentation for this struct was generated from the following file:

• HFSVolumes.h