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/*
* libstatgrab
* https://libstatgrab.org
* Copyright (C) 2003-2004 Peter Saunders
* Copyright (C) 2003-2019 Tim Bishop
* Copyright (C) 2003-2013 Adam Sampson
* Copyright (C) 2012-2019 Jens Rehsack
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <stdio.h>
#include <statgrab.h>
#include <stdlib.h>
#include <unistd.h>
#include "helpers.h"
#ifdef HAVE_LOG4CPLUS_INITIALIZE
static void *l4cplus_initializer;
static void
cleanup_logging(void)
{
log4cplus_deinitialize(l4cplus_initializer);
}
#endif
int main(int argc, char **argv){
sg_mem_stats *mem_stats;
sg_swap_stats *swap_stats;
long long total, free;
#ifdef HAVE_LOG4CPLUS_INITIALIZE
l4cplus_initializer = log4cplus_initialize();
atexit((void (*)(void))cleanup_logging);
#endif
/* Initialise helper - e.g. logging, if any */
sg_log_init("libstatgrab-examples", "SGEXAMPLES_LOG_PROPERTIES", argc ? argv[0] : NULL);
/* Initialise statgrab */
sg_init(1);
/* Drop setuid/setgid privileges. */
if (sg_drop_privileges() != SG_ERROR_NONE)
sg_die("Error. Failed to drop privileges", 1);
if( ((mem_stats = sg_get_mem_stats(NULL)) != NULL) &&
((swap_stats = sg_get_swap_stats(NULL)) != NULL) ) {
printf("Total memory in bytes : %llu\n", mem_stats->total);
printf("Used memory in bytes : %llu\n", mem_stats->used);
printf("Cache memory in bytes : %llu\n", mem_stats->cache);
printf("Free memory in bytes : %llu\n", mem_stats->free);
printf("Swap total in bytes : %llu\n", swap_stats->total);
printf("Swap used in bytes : %llu\n", swap_stats->used);
printf("Swap free in bytes : %llu\n", swap_stats->free);
total = mem_stats->total + swap_stats->total;
free = mem_stats->free + swap_stats->free;
printf("Total VM usage : %5.2f%%\n", 100 - (((float)total/(float)free)));
}
else {
sg_die("Unable to get VM stats", 1);
}
exit(0);
}
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