f1aeccd1357fe4407170a97ca231dda05992b39c
[disorder] / lib / cache.h
1 /*
2 * This file is part of DisOrder
3 * Copyright (C) 2006 Richard Kettlewell
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21 #ifndef CACHE_H
22 #define CACHE_H
23
24 /* Defines a cache mapping keys to typed data items */
25
26 struct cache_type {
27 int lifetime; /* Lifetime of a cache entry */
28 };
29
30 void cache_put(const struct cache_type *type,
31 const char *key, const void *value);
32 /* Inserts KEY into the cache with value VALUE. If KEY is already
33 * present it is overwritten. */
34
35 const void *cache_get(const struct cache_type *type, const char *key);
36 /* Get a value from the cache. */
37
38 void cache_expire(void);
39 /* Expire values from the cache */
40
41 void cache_clean(const struct cache_type *type);
42 /* Clean all elements of a particular type, or all elements if TYPE=0 */
43
44 #endif /* CACHE_H */
45
46 /*
47 Local Variables:
48 c-basic-offset:2
49 comment-column:40
50 fill-column:79
51 indent-tabs-mode:nil
52 End:
53 */
54 /* arch-tag:8TQYM58jrfK4bi9YaWTutQ */