mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 13:32:33 +01:00
108 lines
2.4 KiB
C
108 lines
2.4 KiB
C
/*-
|
|
* See the file LICENSE for redistribution information.
|
|
*
|
|
* Copyright (c) 1996-2002
|
|
* Sleepycat Software. All rights reserved.
|
|
*/
|
|
#include "db_config.h"
|
|
|
|
#ifndef lint
|
|
static const char revid[] = "$Id: qam_upgrade.c,v 11.12 2002/03/29 20:46:48 bostic Exp $";
|
|
#endif /* not lint */
|
|
|
|
#ifndef NO_SYSTEM_INCLUDES
|
|
#include <sys/types.h>
|
|
|
|
#include <limits.h>
|
|
#include <string.h>
|
|
#endif
|
|
|
|
#include "db_int.h"
|
|
#include "dbinc/db_upgrade.h"
|
|
|
|
/*
|
|
* __qam_31_qammeta --
|
|
* Upgrade the database from version 1 to version 2.
|
|
*
|
|
* PUBLIC: int __qam_31_qammeta __P((DB *, char *, u_int8_t *));
|
|
*/
|
|
int
|
|
__qam_31_qammeta(dbp, real_name, buf)
|
|
DB *dbp;
|
|
char *real_name;
|
|
u_int8_t *buf;
|
|
{
|
|
QMETA31 *newmeta;
|
|
QMETA30 *oldmeta;
|
|
|
|
COMPQUIET(dbp, NULL);
|
|
COMPQUIET(real_name, NULL);
|
|
|
|
newmeta = (QMETA31 *)buf;
|
|
oldmeta = (QMETA30 *)buf;
|
|
|
|
/*
|
|
* Copy the fields to their new locations.
|
|
* They may overlap so start at the bottom and use memmove().
|
|
*/
|
|
newmeta->rec_page = oldmeta->rec_page;
|
|
newmeta->re_pad = oldmeta->re_pad;
|
|
newmeta->re_len = oldmeta->re_len;
|
|
newmeta->cur_recno = oldmeta->cur_recno;
|
|
newmeta->first_recno = oldmeta->first_recno;
|
|
newmeta->start = oldmeta->start;
|
|
memmove(newmeta->dbmeta.uid,
|
|
oldmeta->dbmeta.uid, sizeof(oldmeta->dbmeta.uid));
|
|
newmeta->dbmeta.flags = oldmeta->dbmeta.flags;
|
|
newmeta->dbmeta.record_count = 0;
|
|
newmeta->dbmeta.key_count = 0;
|
|
ZERO_LSN(newmeta->dbmeta.unused3);
|
|
|
|
/* Update the version. */
|
|
newmeta->dbmeta.version = 2;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* __qam_32_qammeta --
|
|
* Upgrade the database from version 2 to version 3.
|
|
*
|
|
* PUBLIC: int __qam_32_qammeta __P((DB *, char *, u_int8_t *));
|
|
*/
|
|
int
|
|
__qam_32_qammeta(dbp, real_name, buf)
|
|
DB *dbp;
|
|
char *real_name;
|
|
u_int8_t *buf;
|
|
{
|
|
QMETA32 *newmeta;
|
|
QMETA31 *oldmeta;
|
|
|
|
COMPQUIET(dbp, NULL);
|
|
COMPQUIET(real_name, NULL);
|
|
|
|
newmeta = (QMETA32 *)buf;
|
|
oldmeta = (QMETA31 *)buf;
|
|
|
|
/*
|
|
* Copy the fields to their new locations.
|
|
* We are dropping the first field so move
|
|
* from the top.
|
|
*/
|
|
newmeta->first_recno = oldmeta->first_recno;
|
|
newmeta->cur_recno = oldmeta->cur_recno;
|
|
newmeta->re_len = oldmeta->re_len;
|
|
newmeta->re_pad = oldmeta->re_pad;
|
|
newmeta->rec_page = oldmeta->rec_page;
|
|
newmeta->page_ext = 0;
|
|
/* cur_recno now points to the first free slot. */
|
|
newmeta->cur_recno++;
|
|
if (newmeta->first_recno == 0)
|
|
newmeta->first_recno = 1;
|
|
|
|
/* Update the version. */
|
|
newmeta->dbmeta.version = 3;
|
|
|
|
return (0);
|
|
}
|