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/*-
* 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: bt_upgrade.c,v 1.1.1.1 2003/11/20 22:13:06 toshok 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_page.h"
#include "dbinc/db_am.h"
#include "dbinc/db_upgrade.h"
/*
* __bam_30_btreemeta --
* Upgrade the metadata pages from version 6 to version 7.
*
* PUBLIC: int __bam_30_btreemeta __P((DB *, char *, u_int8_t *));
*/
int
__bam_30_btreemeta(dbp, real_name, buf)
DB *dbp;
char *real_name;
u_int8_t *buf;
{
BTMETA30 *newmeta;
BTMETA2X *oldmeta;
DB_ENV *dbenv;
int ret;
dbenv = dbp->dbenv;
newmeta = (BTMETA30 *)buf;
oldmeta = (BTMETA2X *)buf;
/*
* Move things from the end up, so we do not overwrite things.
* We are going to create a new uid, so we can move the stuff
* at the end of the structure first, overwriting the uid.
*/
newmeta->re_pad = oldmeta->re_pad;
newmeta->re_len = oldmeta->re_len;
newmeta->minkey = oldmeta->minkey;
newmeta->maxkey = oldmeta->maxkey;
newmeta->dbmeta.free = oldmeta->free;
newmeta->dbmeta.flags = oldmeta->flags;
newmeta->dbmeta.type = P_BTREEMETA;
newmeta->dbmeta.version = 7;
/* Replace the unique ID. */
if ((ret = __os_fileid(dbenv, real_name, 1, buf + 36)) != 0)
return (ret);
newmeta->root = 1;
return (0);
}
/*
* __bam_31_btreemeta --
* Upgrade the database from version 7 to version 8.
*
* PUBLIC: int __bam_31_btreemeta
* PUBLIC: __P((DB *, char *, u_int32_t, DB_FH *, PAGE *, int *));
*/
int
__bam_31_btreemeta(dbp, real_name, flags, fhp, h, dirtyp)
DB *dbp;
char *real_name;
u_int32_t flags;
DB_FH *fhp;
PAGE *h;
int *dirtyp;
{
BTMETA31 *newmeta;
BTMETA30 *oldmeta;
COMPQUIET(dbp, NULL);
COMPQUIET(real_name, NULL);
COMPQUIET(fhp, NULL);
newmeta = (BTMETA31 *)h;
oldmeta = (BTMETA30 *)h;
/*
* Copy the effected fields down the page.
* The fields may overlap each other so we
* start at the bottom and use memmove.
*/
newmeta->root = oldmeta->root;
newmeta->re_pad = oldmeta->re_pad;
newmeta->re_len = oldmeta->re_len;
newmeta->minkey = oldmeta->minkey;
newmeta->maxkey = oldmeta->maxkey;
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);
/* Set the version number. */
newmeta->dbmeta.version = 8;
/* Upgrade the flags. */
if (LF_ISSET(DB_DUPSORT))
F_SET(&newmeta->dbmeta, BTM_DUPSORT);
*dirtyp = 1;
return (0);
}
/*
* __bam_31_lbtree --
* Upgrade the database btree leaf pages.
*
* PUBLIC: int __bam_31_lbtree
* PUBLIC: __P((DB *, char *, u_int32_t, DB_FH *, PAGE *, int *));
*/
int
__bam_31_lbtree(dbp, real_name, flags, fhp, h, dirtyp)
DB *dbp;
char *real_name;
u_int32_t flags;
DB_FH *fhp;
PAGE *h;
int *dirtyp;
{
BKEYDATA *bk;
db_pgno_t pgno;
db_indx_t indx;
int ret;
ret = 0;
for (indx = O_INDX; indx < NUM_ENT(h); indx += P_INDX) {
bk = GET_BKEYDATA(dbp, h, indx);
if (B_TYPE(bk->type) == B_DUPLICATE) {
pgno = GET_BOVERFLOW(dbp, h, indx)->pgno;
if ((ret = __db_31_offdup(dbp, real_name, fhp,
LF_ISSET(DB_DUPSORT) ? 1 : 0, &pgno)) != 0)
break;
if (pgno != GET_BOVERFLOW(dbp, h, indx)->pgno) {
*dirtyp = 1;
GET_BOVERFLOW(dbp, h, indx)->pgno = pgno;
}
}
}
return (ret);
}
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