1 /* Copyright (C) 2007 Michael Widenius
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 02110-1335 USA */
15
16 /*
17 When we have finished the write/update/delete of a row, we have cleanups to
18 do. For now it is signalling to Checkpoint that all dirtied pages have
19 their rec_lsn set and page LSN set (_ma_unpin_all_pages() has been called),
20 and that bitmap pages are correct (_ma_bitmap_release_unused() has been
21 called).
22 */
23
24 /* Struct for clr_end */
25
26 struct st_msg_to_write_hook_for_clr_end
27 {
28 LSN previous_undo_lsn;
29 enum translog_record_type undone_record_type;
30 ha_checksum checksum_delta;
31 void *extra_msg;
32 };
33
34 struct st_msg_to_write_hook_for_undo_key
35 {
36 my_off_t *root;
37 my_off_t value;
38 uint keynr;
39 ulonglong auto_increment;
40 };
41
42
43 /* Function definitions for some redo functions */
44
45 my_bool _ma_write_clr(MARIA_HA *info, LSN undo_lsn,
46 enum translog_record_type undo_type,
47 my_bool store_checksum, ha_checksum checksum,
48 LSN *res_lsn, void *extra_msg);
49 int _ma_write_undo_key_insert(MARIA_HA *info, const MARIA_KEY *key,
50 my_off_t *root, my_off_t new_root,
51 LSN *res_lsn);
52 my_bool _ma_write_undo_key_delete(MARIA_HA *info, const MARIA_KEY *key,
53 my_off_t new_root, LSN *res_lsn);
54 my_bool write_hook_for_clr_end(enum translog_record_type type,
55 TRN *trn, MARIA_HA *tbl_info, LSN *lsn,
56 void *hook_arg);
57 extern my_bool write_hook_for_undo_key(enum translog_record_type type,
58 TRN *trn, MARIA_HA *tbl_info,
59 LSN *lsn, void *hook_arg);
60 extern my_bool write_hook_for_undo_key_insert(enum translog_record_type type,
61 TRN *trn, MARIA_HA *tbl_info,
62 LSN *lsn, void *hook_arg);
63 extern my_bool write_hook_for_undo_key_delete(enum translog_record_type type,
64 TRN *trn, MARIA_HA *tbl_info,
65 LSN *lsn, void *hook_arg);
66
67 my_bool _ma_log_prefix(MARIA_PAGE *page, uint changed_length, int move_length,
68 enum en_key_debug debug_marker);
69 my_bool _ma_log_suffix(MARIA_PAGE *page, uint org_length,
70 uint new_length);
71 my_bool _ma_log_add(MARIA_PAGE *page, uint buff_length, uchar *key_pos,
72 uint changed_length, int move_length,
73 my_bool handle_overflow,
74 enum en_key_debug debug_marker);
75 my_bool _ma_log_delete(MARIA_PAGE *page, const uchar *key_pos,
76 uint changed_length, uint move_length,
77 uint append_length, enum en_key_debug debug_marker);
78 my_bool _ma_log_change(MARIA_PAGE *page, const uchar *key_pos, uint length,
79 enum en_key_debug debug_marker);
80 my_bool _ma_log_new(MARIA_PAGE *page, my_bool root_page);
81 #ifdef EXTRA_DEBUG_KEY_CHANGES
82 void _ma_log_key_changes(MARIA_PAGE *ma_page, LEX_CUSTRING *log_array,
83 uchar *log_pos, uint *changed_length,
84 uint *translog_parts);
85 #else
86 #define _ma_log_key_changes(A,B,C,D,E)
87 #endif
88
89 uint _ma_apply_redo_index_new_page(MARIA_HA *info, LSN lsn,
90 const uchar *header, uint length);
91 uint _ma_apply_redo_index_free_page(MARIA_HA *info, LSN lsn,
92 const uchar *header);
93 uint _ma_apply_redo_index(MARIA_HA *info,
94 LSN lsn, const uchar *header, uint length);
95
96 my_bool _ma_apply_undo_key_insert(MARIA_HA *info, LSN undo_lsn,
97 const uchar *header, uint length);
98 my_bool _ma_apply_undo_key_delete(MARIA_HA *info, LSN undo_lsn,
99 const uchar *header, uint length,
100 my_bool with_root);
101
_ma_finalize_row(MARIA_HA * info)102 static inline void _ma_finalize_row(MARIA_HA *info)
103 {
104 info->trn->rec_lsn= LSN_IMPOSSIBLE;
105 }
106
107 /* unpinning is often the last operation before finalizing */
108
_ma_unpin_all_pages_and_finalize_row(MARIA_HA * info,LSN undo_lsn)109 static inline void _ma_unpin_all_pages_and_finalize_row(MARIA_HA *info,
110 LSN undo_lsn)
111 {
112 _ma_unpin_all_pages(info, undo_lsn);
113 _ma_finalize_row(info);
114 }
115
116 extern my_bool _ma_lock_key_del(MARIA_HA *info, my_bool insert_at_end);
117 extern void _ma_unlock_key_del(MARIA_HA *info);
_ma_fast_unlock_key_del(MARIA_HA * info)118 static inline void _ma_fast_unlock_key_del(MARIA_HA *info)
119 {
120 if (info->key_del_used)
121 _ma_unlock_key_del(info);
122 }
123