s_t2fsNode Struct Reference

This is the core object to describe a path inside the tree. More...

#include <t2fs.h>

Data Fields
t2fsSchemaNode *	schema
uint32_t	id
	Index of this node.
uint32_t	offset
	Offset to this node.
uint32_t	size
	Data size of this node.
uint8_t *	data
	Data of this node, can be another offset table (branch node) or data (data/leaf node) depending on schema->childType.
t2fsInput *	input
	For reading data.
t2fsNode *	parent
	The parent node.
uint32_t	childCount
	How many child nodes this node has.
t2fsNode *	childNodes
	Pointer to the child node(s).
uint8_t	isCompressed
	Indicator that the data is compressed.
uint8_t	hasBeenRead
	Indicator that the data for this node has been read.
t_t2fs *	lib
	Pointer to our context for convenience.

Detailed Description

This is the core object to describe a path inside the tree.

Field Documentation

schema

t2fsSchemaNode* s_t2fsNode::schema

id

uint32_t s_t2fsNode::id

Index of this node.

offset

uint32_t s_t2fsNode::offset

Offset to this node.

Real in file offset to beginning of this table or real in file offset to data when schema->childType is NODE_TYPE_DATA. Except for when one of the parent nodes is compressed, then it's the offset in the decompressed buffer.

size

uint32_t s_t2fsNode::size

Data size of this node.

Total size of this node. Every node is expected to be 8 byte padded, so minimum size would be 8. On the root node this should be the total file size - 8.

data

uint8_t* s_t2fsNode::data

Data of this node, can be another offset table (branch node) or data (data/leaf node) depending on schema->childType.

On load data request this will point to new allocated data (read from file), except for when the node or one of it's parents is compressed and holds input.buf, then it's pointed to somewhere inside input.buf. So do only free when data is not NULL and input.buf is NULL.

input

t2fsInput* s_t2fsNode::input

For reading data.

By default this will be a pointer to t_t2fs.root.input, except for when isCompressed, then a new one is allocated and should be freed when this node gets freed.

parent

t2fsNode* s_t2fsNode::parent

The parent node.

May only NULL on the root node.

childCount

uint32_t s_t2fsNode::childCount

How many child nodes this node has.

childNodes

t2fsNode* s_t2fsNode::childNodes

Pointer to the child node(s).

This may be NULL when there are none or this is a NODE_TYPE_DATA.

isCompressed

uint8_t s_t2fsNode::isCompressed

Indicator that the data is compressed.

hasBeenRead

uint8_t s_t2fsNode::hasBeenRead

Indicator that the data for this node has been read.

lib

t_t2fs* s_t2fsNode::lib

Pointer to our context for convenience.

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

• t2fs.h