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hp_rsame.c
Package: mysql-3.23.35.tar.gz [view]
Upload User: tsgydb
Upload Date: 2007-04-14
Package Size: 10674k
Code Size: 2k
Category:
MySQL
Development Platform:
Visual C++
- /* 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 */
- /* re-read current record */
- #include "heapdef.h"
- /* If inx != -1 the new record is read according to index
- (for next/prev). Record must in this case point to last record
- Returncodes:
- 0 = Ok.
- HA_ERR_RECORD_DELETED = Record was removed
- HA_ERR_KEY_NOT_FOUND = Record not found with key
- */
- int heap_rsame(register HP_INFO *info, byte *record, int inx)
- {
- HP_SHARE *share=info->s;
- DBUG_ENTER("heap_rsame");
- test_active(info);
- if (info->current_ptr[share->reclength])
- {
- if (inx < -1 || inx >= (int) share->keys)
- {
- DBUG_RETURN(my_errno=HA_ERR_WRONG_INDEX);
- }
- else if (inx != -1)
- {
- info->lastinx=inx;
- _hp_make_key(share->keydef+inx,info->lastkey,record);
- if (!_hp_search(info,share->keydef+inx,info->lastkey,3))
- {
- info->update=0;
- DBUG_RETURN(my_errno);
- }
- }
- memcpy(record,info->current_ptr,(size_t) share->reclength);
- DBUG_RETURN(0);
- }
- info->update=0;
- DBUG_RETURN(my_errno=HA_ERR_RECORD_DELETED);
- }