/* Allocate memory on a page boundary. Copyright (C) 1991 Free Software Foundation, Inc. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "mmprivate.h" #ifdef HAVE_UNISTD_H #include <unistd.h> #endif /* Cache the pagesize for the current host machine. Note that if the host does not readily provide a getpagesize() function, we need to emulate it elsewhere, not clutter up this file with lots of kluges to try to figure it out. */ static size_t cache_pagesize; #if NEED_DECLARATION_GETPAGESIZE extern int getpagesize PARAMS ((void)); #endif PTR mvalloc (md, size) PTR md; size_t size; { if (cache_pagesize == 0) { cache_pagesize = getpagesize (); } return (mmemalign (md, cache_pagesize, size)); } #if REPLACE_SYSMALLOC /* When using this package, provide a version of malloc/realloc/free built on top of it, so that if we use the default sbrk() region we will not collide with another malloc package trying to do the same thing, if the application contains any "hidden" calls to malloc/realloc/free (such as inside a system library). */ PTR valloc (size) size_t size; { return mvalloc ((PTR) NULL, size); } #endif