MySQL 5.6.14 Source Code Document
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
_rectest.c
1 /* Copyright (C) 2000-2002 MySQL AB
2 
3  This program is free software; you can redistribute it and/or modify
4  it under the terms of the GNU General Public License as published by
5  the Free Software Foundation; version 2 of the License.
6 
7  This program is distributed in the hope that it will be useful,
8  but WITHOUT ANY WARRANTY; without even the implied warranty of
9  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  GNU General Public License for more details.
11 
12  You should have received a copy of the GNU General Public License
13  along with this program; if not, write to the Free Software
14  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
15 
16 /* Test if a record has changed since last read */
17 /* In heap this is only used when debugging */
18 
19 #include "heapdef.h"
20 
21 int hp_rectest(register HP_INFO *info, register const uchar *old)
22 {
23  DBUG_ENTER("hp_rectest");
24 
25  if (memcmp(info->current_ptr,old,(size_t) info->s->reclength))
26  {
27  DBUG_RETURN((my_errno=HA_ERR_RECORD_CHANGED)); /* Record have changed */
28  }
29  DBUG_RETURN(0);
30 } /* _heap_rectest */