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
|
/* Copyright (c) 2000-2003, 2005-2007 MySQL AB, 2009 Sun Microsystems, Inc.
Use is subject to license terms.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/*
Extra functions we want to do with a database
- All flags, exept record-cache-flags, are set in all used databases
record-cache-flags are set in myrg_rrnd when we are changing database.
*/
#include "myrg_def.h"
int myrg_extra(MYRG_INFO *info,enum ha_extra_function function,
void *extra_arg)
{
int error,save_error=0;
MYRG_TABLE *file;
DBUG_ENTER("myrg_extra");
DBUG_PRINT("info",("function: %lu", (ulong) function));
if (!info->children_attached)
DBUG_RETURN(1);
if (function == HA_EXTRA_CACHE)
{
info->cache_in_use=1;
info->cache_size= (extra_arg ? *(ulong*) extra_arg :
my_default_record_cache_size);
}
else
{
if (function == HA_EXTRA_NO_CACHE ||
function == HA_EXTRA_PREPARE_FOR_UPDATE)
info->cache_in_use=0;
if (function == HA_EXTRA_RESET_STATE)
{
info->current_table=0;
info->last_used_table=info->open_tables;
}
for (file=info->open_tables ; file != info->end_table ; file++)
{
if ((error=mi_extra(file->table, function, extra_arg)))
save_error=error;
}
}
DBUG_RETURN(save_error);
}
void myrg_extrafunc(MYRG_INFO *info, invalidator_by_filename inv)
{
MYRG_TABLE *file;
DBUG_ENTER("myrg_extrafunc");
for (file=info->open_tables ; file != info->end_table ; file++)
file->table->s->invalidator = inv;
DBUG_VOID_RETURN;
}
int myrg_reset(MYRG_INFO *info)
{
int save_error= 0;
MYRG_TABLE *file;
DBUG_ENTER("myrg_reset");
info->cache_in_use=0;
info->current_table=0;
info->last_used_table= info->open_tables;
/*
This is normally called with detached children.
Return OK as this is the normal case.
*/
if (!info->children_attached)
DBUG_RETURN(0);
for (file=info->open_tables ; file != info->end_table ; file++)
{
int error;
if ((error= mi_reset(file->table)))
save_error=error;
}
DBUG_RETURN(save_error);
}
|
