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139a73cade
Renamed _hp_func -> hp_func mi_key_cmp moved to /mysys/my_handler.c New tests for HEAP tables heap/_check.c: RB-tree index Renamed _hp_func -> hp_func heap/_rectest.c: RB-tree index Renamed _hp_func -> hp_func heap/heapdef.h: RB-tree index Renamed _hp_func -> hp_func heap/hp_block.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_clear.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_close.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_create.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_delete.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_hash.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_open.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_panic.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_rename.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_rfirst.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_rkey.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_rlast.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_rnext.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_rprev.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_rrnd.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_rsame.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_scan.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_test1.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_test2.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_update.c: RB-tree index Renamed _hp_func -> hp_func heap/hp_write.c: RB-tree index Renamed _hp_func -> hp_func include/Makefile.am: New include include/heap.h: RB-Tree index include/my_tree.h: new search functions new custom_arg argument include/myisam.h: Removed MI_KEYSEG isam/isamlog.c: Add custom_arg isam/pack_isam.c: Add custom_arg myisam/ft_nlq_search.c: Add custom_arg myisam/ft_parser.c: Add custom_arg myisam/ft_stopwords.c: Add custom_arg myisam/mi_search.c: Remove mi_key_cmp myisam/mi_write.c: Add custom_arg myisam/myisamdef.h: Remove mi_key_cmp myisam/myisamlog.c: Add custom_arg myisam/myisampack.c: Add custom_arg mysys/Makefile.am: New file my_handler.c mysys/tree.c: custom_arg new search functions sql/ha_heap.cc: RBTree sql/ha_myisam.cc: RBTree sql/item_sum.cc: custom_arg sql/sql_analyse.cc: custom_arg sql/sql_class.h: custom_arg sql/sql_table.cc: Remove duplicate code sql/sql_yacc.yy: UNDEF by default sql/table.cc: Remove dirty hack
94 lines
3.4 KiB
C
94 lines
3.4 KiB
C
/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifndef _tree_h
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#define _tree_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MAX_TREE_HIGHT 40 /* = max 1048576 leafs in tree */
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#define ELEMENT_KEY(tree,element)\
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(tree->offset_to_key ? (void*)((byte*) element+tree->offset_to_key) :\
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*((void**) (element+1)))
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#define tree_set_pointer(element,ptr) *((byte **) (element+1))=((byte*) (ptr))
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typedef enum { left_root_right, right_root_left } TREE_WALK;
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typedef uint32 element_count;
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typedef int (*tree_walk_action)(void *,element_count,void *);
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typedef enum { free_init, free_free, free_end } TREE_FREE;
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typedef void (*tree_element_free)(void*, TREE_FREE, void *);
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#ifdef MSDOS
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typedef struct st_tree_element {
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struct st_tree_element *left,*right;
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unsigned long count;
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uchar colour; /* black is marked as 1 */
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} TREE_ELEMENT;
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#else
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typedef struct st_tree_element {
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struct st_tree_element *left,*right;
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uint32 count:31,
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colour:1; /* black is marked as 1 */
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} TREE_ELEMENT;
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#endif /* MSDOS */
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#define ELEMENT_CHILD(element, offs) (*(TREE_ELEMENT**)((char*)element + offs))
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typedef struct st_tree {
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TREE_ELEMENT *root,null_element;
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TREE_ELEMENT **parents[MAX_TREE_HIGHT];
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uint offset_to_key,elements_in_tree,size_of_element,memory_limit,allocated;
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qsort_cmp2 compare;
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void* custom_arg;
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MEM_ROOT mem_root;
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my_bool with_delete;
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tree_element_free free;
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} TREE;
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/* Functions on whole tree */
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void init_tree(TREE *tree, uint default_alloc_size, uint memory_limit,
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int size, qsort_cmp2 compare, my_bool with_delete,
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tree_element_free free_element, void *custom_arg);
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void delete_tree(TREE*);
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void reset_tree(TREE*);
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/* similar to delete tree, except we do not my_free() blocks in mem_root
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*/
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#define is_tree_inited(tree) ((tree)->root != 0)
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/* Functions on leafs */
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TREE_ELEMENT *tree_insert(TREE *tree,void *key, uint key_size,
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void *custom_arg);
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void *tree_search(TREE *tree, void *key, void *custom_arg);
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int tree_walk(TREE *tree,tree_walk_action action,
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void *argument, TREE_WALK visit);
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int tree_delete(TREE *tree, void *key, void *custom_arg);
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void *tree_search_key(TREE *tree, const void *key,
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TREE_ELEMENT **parents, TREE_ELEMENT ***last_pos,
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enum ha_rkey_function flag, void *custom_arg);
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void *tree_search_edge(TREE *tree, TREE_ELEMENT **parents,
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TREE_ELEMENT ***last_pos, int child_offs);
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void *tree_search_next(TREE *tree, TREE_ELEMENT ***last_pos, int l_offs,
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int r_offs);
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uint tree_record_pos(TREE *tree, const void *key,
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enum ha_rkey_function search_flag, void *custom_arg);
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#ifdef __cplusplus
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}
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#endif
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#endif
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