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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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 for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
remove all records from database
Identical as hp_create() and hp_open() but used HP_SHARE* instead of name and
database remains open.
*/
#include "heapdef.h"
void heap_clear(HP_INFO *info)
{
hp_clear(info->s);
}
void hp_clear(HP_SHARE *info)
{
uint key;
DBUG_ENTER("hp_clear");
if (info->block.levels)
VOID(hp_free_level(&info->block,info->block.levels,info->block.root,
(byte*) 0));
info->block.levels=0;
for (key=0 ; key < info->keys ; key++)
{
HP_KEYDEF *keyinfo = info->keydef + key;
if (keyinfo->algorithm == HA_KEY_ALG_BTREE)
{
delete_tree(&keyinfo->rb_tree);
}
else
{
HP_BLOCK *block= &keyinfo->block;
if (block->levels)
VOID(hp_free_level(block,block->levels,block->root,(byte*) 0));
block->levels=0;
block->last_allocated=0;
}
}
info->records=info->deleted=info->data_length=info->index_length=0;
info->blength=1;
info->changed=0;
info->del_link=0;
DBUG_VOID_RETURN;
}
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