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/* OpenCP Module Player
* copyright (c) '94-'10 Niklas Beisert <nbeisert@physik.tu-muenchen.de>
*
* pagesize() call used from several plugins. Different unix variants provides
* pagesize info in different ways.. sysconf, header-file, not mentioned
* (4096 default fallback).
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <limits.h>
#include <unistd.h>
#ifndef PAGESIZE
#define PAGESIZE 4096
#endif
static long pagesize(void) __attribute__((const));
static long pagesize(void)
{
static long retval=0;
if (retval)
return retval;
#ifdef HAVE_SYSCONF
#ifdef _SC_PAGESIZE
retval = sysconf(_SC_PAGESIZE);
if (retval>0)
return retval;
if (retval<0)
perror("[compat] sysconf(_SC_PAGESIZE)");
#endif
#endif
retval = PAGESIZE;
return retval;
}
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