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/* -*- c++ -*- */
/*
* Copyright 2003,2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "pagesize.h"
#include <unistd.h>
#include <stdio.h>
namespace gr {
#if defined(_WIN32) && defined(HAVE_GETPAGESIZE)
extern "C" size_t getpagesize(void);
#endif
int
pagesize()
{
static int s_pagesize = -1;
if(s_pagesize == -1) {
#if defined(HAVE_GETPAGESIZE)
s_pagesize = getpagesize();
#elif defined (HAVE_SYSCONF)
s_pagesize = sysconf(_SC_PAGESIZE);
if(s_pagesize == -1) {
perror("_SC_PAGESIZE");
s_pagesize = 4096;
}
#else
fprintf(stderr, "gr::pagesize: no info; setting pagesize = 4096\n");
s_pagesize = 4096;
#endif
}
return s_pagesize;
}
} /* namespace gr */
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