Commit | Line | Data |
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c906108c SS |
1 | /* Allocate memory on a page boundary. |
2 | Copyright (C) 1991 Free Software Foundation, Inc. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If | |
16 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
18 | ||
19 | #include "mmprivate.h" | |
20 | ||
21 | /* Cache the pagesize for the current host machine. Note that if the host | |
22 | does not readily provide a getpagesize() function, we need to emulate it | |
23 | elsewhere, not clutter up this file with lots of kluges to try to figure | |
24 | it out. */ | |
25 | ||
26 | static size_t cache_pagesize; | |
27 | extern int getpagesize PARAMS ((void)); | |
28 | ||
29 | PTR | |
30 | mvalloc (md, size) | |
31 | PTR md; | |
32 | size_t size; | |
33 | { | |
34 | if (cache_pagesize == 0) | |
35 | { | |
36 | cache_pagesize = getpagesize (); | |
37 | } | |
38 | ||
39 | return (mmemalign (md, cache_pagesize, size)); | |
40 | } | |
41 | ||
42 | ||
43 | PTR | |
44 | valloc (size) | |
45 | size_t size; | |
46 | { | |
47 | return mvalloc ((PTR) NULL, size); | |
48 | } |