1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*-
* 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 11.25 2002/08/06 06:11:13 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_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);
}
|
