my_tree.h File Reference

#include <stddef.h>
#include <sys/types.h>
#include "my_alloc.h"
#include "my_base.h"
#include "my_inttypes.h"
#include "my_sys.h"

Go to the source code of this file.

Classes
struct	TREE_ELEMENT
struct	TREE

Macros
#define	MAX_TREE_HEIGHT   64
#define	ELEMENT_KEY(tree, element)
#define	tree_set_pointer(element, ptr)    *((uchar **)(element + 1)) = ((uchar *)(ptr))
#define	TREE_NO_DUPS   1
#define	ELEMENT_CHILD(element, offs)    (*(TREE_ELEMENT **)((char *)element + offs))
#define	TREE_ELEMENT_EXTRA_SIZE   (sizeof(TREE_ELEMENT) + sizeof(void *))

Typedefs
typedef uint32	element_count
typedef int(*	tree_walk_action) (void *, element_count, void *)
typedef void(*	tree_element_free) (void *, TREE_FREE, const void *)

Enumerations
enum	TREE_WALK { left_root_right , right_root_left }
enum	TREE_FREE { free_init , free_free , free_end }

Functions
void	init_tree (TREE *tree, ulong memory_limit, int element_size, qsort2_cmp compare, bool with_delete, tree_element_free free_element, const void *custom_arg)
void	delete_tree (TREE *)
void	reset_tree (TREE *)
bool	is_tree_inited (TREE *tree)
TREE_ELEMENT *	tree_insert (TREE *tree, void *key, uint key_size, const void *custom_arg)
void *	tree_search (TREE *tree, void *key, const void *custom_arg)
int	tree_walk (TREE *tree, tree_walk_action action, void *argument, TREE_WALK visit)
int	tree_delete (TREE *tree, void *key, uint key_size, const void *custom_arg)
void *	tree_search_key (TREE *tree, const void *key, TREE_ELEMENT **parents, TREE_ELEMENT ***last_pos, enum ha_rkey_function flag, const void *custom_arg)
void *	tree_search_edge (TREE *tree, TREE_ELEMENT **parents, TREE_ELEMENT ***last_pos, int child_offs)
void *	tree_search_next (TREE *tree, TREE_ELEMENT ***last_pos, int l_offs, int r_offs)
ha_rows	tree_record_pos (TREE *tree, const void *key, enum ha_rkey_function search_flag, const void *custom_arg)

Macro Definition Documentation

ELEMENT_CHILD

#define ELEMENT_CHILD	(		element,
			offs
	)		(*(TREE_ELEMENT **)((char *)element + offs))

ELEMENT_KEY

#define ELEMENT_KEY	(		tree,
			element
	)

Value:

  (tree->offset_to_key ? (void *)((uchar *)element + tree->offset_to_key) \
                       : *((void **)(element + 1)))

MAX_TREE_HEIGHT

#define MAX_TREE_HEIGHT   64

TREE_ELEMENT_EXTRA_SIZE

#define TREE_ELEMENT_EXTRA_SIZE   (sizeof(TREE_ELEMENT) + sizeof(void *))

TREE_NO_DUPS

#define TREE_NO_DUPS   1

tree_set_pointer

#define tree_set_pointer	(		element,
			ptr
	)		*((uchar **)(element + 1)) = ((uchar *)(ptr))

Typedef Documentation

element_count

typedef uint32 element_count

tree_element_free

typedef void(* tree_element_free) (void *, TREE_FREE, const void *)

tree_walk_action

typedef int(* tree_walk_action) (void *, element_count, void *)

Enumeration Type Documentation

TREE_FREE

enum TREE_FREE

Enumerator
free_init
free_free
free_end

TREE_WALK

enum TREE_WALK

Enumerator
left_root_right
right_root_left

Function Documentation

delete_tree()

void delete_tree

(

TREE *

tree

)

init_tree()

void init_tree	(	TREE *	tree,
		ulong	memory_limit,
		int	element_size,
		qsort2_cmp	compare,
		bool	with_delete,
		tree_element_free	free_element,
		const void *	custom_arg
	)

is_tree_inited()

bool is_tree_inited ( TREE *  tree )

inline

reset_tree()

void reset_tree

(

TREE *

tree

)

tree_delete()

int tree_delete	(	TREE *	tree,
		void *	key,
		uint	key_size,
		const void *	custom_arg
	)

tree_insert()

TREE_ELEMENT * tree_insert	(	TREE *	tree,
		void *	key,
		uint	key_size,
		const void *	custom_arg
	)

tree_record_pos()

ha_rows tree_record_pos	(	TREE *	tree,
		const void *	key,
		enum ha_rkey_function	search_flag,
		const void *	custom_arg
	)

tree_search()

void * tree_search	(	TREE *	tree,
		void *	key,
		const void *	custom_arg
	)

tree_search_edge()

void * tree_search_edge	(	TREE *	tree,
		TREE_ELEMENT **	parents,
		TREE_ELEMENT ***	last_pos,
		int	child_offs
	)

tree_search_key()

void * tree_search_key	(	TREE *	tree,
		const void *	key,
		TREE_ELEMENT **	parents,
		TREE_ELEMENT ***	last_pos,
		enum ha_rkey_function	flag,
		const void *	custom_arg
	)

tree_search_next()

void * tree_search_next	(	TREE *	tree,
		TREE_ELEMENT ***	last_pos,
		int	l_offs,
		int	r_offs
	)

tree_walk()

int tree_walk	(	TREE *	tree,
		tree_walk_action	action,
		void *	argument,
		TREE_WALK	visit
	)