blob: 1010aef9e1deeb0735fb4dfd903851f831eb0e2a (
plain)
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
|
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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; either version 2 of the License, or
(at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
Key cache assignments
*/
#include "myisamdef.h"
/*
Assign pages of the index file for a table to a key cache
SYNOPSIS
mi_assign_to_keycache()
info open table
map map of indexes to assign to the key cache
key_cache_ptr pointer to the key cache handle
RETURN VALUE
0 if a success. error code - otherwise.
NOTES.
At present pages for all indexes must be assigned to the same key cache.
In future only pages for indexes specified in the key_map parameter
of the table will be assigned to the specified key cache.
*/
int mi_assign_to_keycache(MI_INFO *info, ulonglong key_map,
KEY_CACHE_HANDLE *reg_keycache)
{
int error= 0;
MYISAM_SHARE* share= info->s;
DBUG_ENTER("mi_assign_to_keycache");
share->reg_keycache= reg_keycache;
if (!(info->lock_type == F_WRLCK && share->w_locks))
{
if (flush_key_blocks(*share->keycache, share->kfile, FLUSH_RELEASE))
{
error=my_errno;
mi_mark_crashed(info); /* Mark that table must be checked */
}
share->keycache= reg_keycache;
}
DBUG_RETURN(error);
}
|
