rt_index.h

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/* Copyright (c) 2002, 2024, Oracle and/or its affiliates.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.
 
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   documentation.  The authors of MySQL hereby grant you an additional
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   the program or referenced in the documentation.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License, version 2.0, for more details.
 
   You should have received a copy of the GNU General Public License
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
/**
  @file storage/myisam/rt_index.h
*/
 
#ifndef _rt_index_h
#define _rt_index_h
 
#include <sys/types.h>
 
#include "my_inttypes.h"
#include "myisam.h"
 
#define rt_PAGE_FIRST_KEY(page, nod_flag) (page + 2 + nod_flag)
#define rt_PAGE_NEXT_KEY(key, key_length, nod_flag) \
  (key + key_length + (nod_flag ? nod_flag : info->s->base.rec_reflength))
#define rt_PAGE_END(page) (page + mi_getint(page))
 
#define rt_PAGE_MIN_SIZE(block_length) ((uint)(block_length) / 3)
 
int rtree_insert(MI_INFO *info, uint keynr, uchar *key, uint key_length);
int rtree_delete(MI_INFO *info, uint keynr, uchar *key, uint key_length);
 
int rtree_find_first(MI_INFO *info, uint keynr, uchar *key, uint key_length,
                     uint search_flag);
int rtree_find_next(MI_INFO *info, uint keynr, uint search_flag);
 
int rtree_get_first(MI_INFO *info, uint keynr, uint key_length);
int rtree_get_next(MI_INFO *info, uint keynr, uint key_length);
 
ha_rows rtree_estimate(MI_INFO *info, uint keynr, uchar *key, uint key_length,
                       uint flag);
 
int rtree_split_page(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *page, uchar *key,
                     uint key_length, my_off_t *new_page_offs);
 
#endif /* _rt_index_h */