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1 | /* Include file cached obstack implementation. |
2 | Written by Fred Fish (fnf@cygnus.com) | |
3 | Copyright 1995 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #ifndef BCACHE_H | |
22 | #define BCACHE_H 1 | |
23 | ||
24 | #define BCACHE_HASHLENGTH 12 /* Number of bits in hash value */ | |
25 | #define BCACHE_HASHSIZE (1 << BCACHE_HASHLENGTH) | |
26 | #define BCACHE_MAXLENGTH 128 | |
27 | ||
28 | struct hashlink { | |
29 | struct hashlink *next; | |
30 | char data[1]; | |
31 | }; | |
32 | ||
33 | struct bcache { | |
34 | struct obstack cache; | |
35 | struct hashlink **indextable[BCACHE_MAXLENGTH]; | |
36 | int cache_hits; | |
37 | int cache_misses; | |
38 | int cache_bytes; | |
39 | int cache_savings; | |
40 | int bcache_overflows; | |
41 | }; | |
42 | ||
43 | extern void * | |
44 | bcache PARAMS ((void *bytes, int count, struct bcache *bcachep)); | |
45 | ||
46 | #endif /* BCACHE_H */ |