blob: 928dce21960f76543237de5519e4f9dbd4c3af74 (
plain) (
blame)
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
|
/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996, 1997, 1998
* Sleepycat Software. All rights reserved.
*
* @(#)btree.src 10.8 (Sleepycat) 4/10/98
*/
PREFIX bam
/*
* BTREE-pg_alloc: used to record allocating a new page.
*
* meta_lsn: the meta-data page's original lsn.
* page_lsn: the allocated page's original lsn.
* pgno: the page allocated.
* next: the next page on the free list.
*/
BEGIN pg_alloc
ARG fileid u_int32_t lu
POINTER meta_lsn DB_LSN * lu
POINTER page_lsn DB_LSN * lu
ARG pgno db_pgno_t lu
ARG ptype u_int32_t lu
ARG next db_pgno_t lu
END
/*
* BTREE-pg_free: used to record freeing a page.
*
* pgno: the page being freed.
* meta_lsn: the meta-data page's original lsn.
* header: the header from the free'd page.
* next: the previous next pointer on the metadata page.
*/
BEGIN pg_free
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER meta_lsn DB_LSN * lu
DBT header DBT s
ARG next db_pgno_t lu
END
/*
* BTREE-split: used to log a page split.
*
* left: the page number for the low-order contents.
* llsn: the left page's original LSN.
* right: the page number for the high-order contents.
* rlsn: the right page's original LSN.
* indx: the number of entries that went to the left page.
* npgno: the next page number
* nlsn: the next page's original LSN (or 0 if no next page).
* pg: the split page's contents before the split.
*/
BEGIN split
ARG fileid u_int32_t lu
ARG left db_pgno_t lu
POINTER llsn DB_LSN * lu
ARG right db_pgno_t lu
POINTER rlsn DB_LSN * lu
ARG indx u_int32_t lu
ARG npgno db_pgno_t lu
POINTER nlsn DB_LSN * lu
DBT pg DBT s
END
/*
* BTREE-rsplit: used to log a reverse-split
*
* pgno: the page number of the page copied over the root.
* pgdbt: the page being copied on the root page.
* nrec: the tree's record count.
* rootent: last entry on the root page.
* rootlsn: the root page's original lsn.
*/
BEGIN rsplit
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
DBT pgdbt DBT s
ARG nrec db_pgno_t lu
DBT rootent DBT s
POINTER rootlsn DB_LSN * lu
END
/*
* BTREE-adj: used to log the adjustment of an index.
*
* pgno: the page modified.
* lsn: the page's original lsn.
* indx: the index adjusted.
* indx_copy: the index to copy if inserting.
* is_insert: 0 if a delete, 1 if an insert.
*/
BEGIN adj
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
ARG indx_copy u_int32_t lu
ARG is_insert u_int32_t lu
END
/*
* BTREE-cadjust: used to adjust the count change in an internal page.
*
* pgno: the page modified.
* lsn: the page's original lsn.
* indx: the index to be adjusted.
* adjust: the signed adjustment.
* total: if the total tree entries count should be adjusted
*/
BEGIN cadjust
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
ARG adjust int32_t ld
ARG total int32_t ld
END
/*
* BTREE-cdel: used to log the intent-to-delete of a cursor record.
*
* pgno: the page modified.
* lsn: the page's original lsn.
* indx: the index to be deleted.
*/
BEGIN cdel
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
END
/*
* BTREE-repl: used to log the replacement of an item.
*
* pgno: the page modified.
* lsn: the page's original lsn.
* orig: the original data.
* new: the replacement data.
* duplicate: the prefix of the replacement that matches the original.
*/
BEGIN repl
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
ARG isdeleted u_int32_t lu
DBT orig DBT s
DBT repl DBT s
ARG prefix u_int32_t lu
ARG suffix u_int32_t lu
END
|
