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root/i-scream/projects/libstatgrab/examples/vm_stats.c
Revision: 1.7
Committed: Mon Jan 19 16:49:19 2004 UTC (20 years, 3 months ago) by tdb
Content type: text/plain
Branch: MAIN
CVS Tags: LIBSTATGRAB_0_9, LIBSTATGRAB_0_8_2, LIBSTATGRAB_0_8_1
Changes since 1.6: +2 -0 lines
Log Message:
A whole bunch of minor cosmetic changes.

File Contents

# User Rev Content
1 pajs 1.1 /*
2     * i-scream central monitoring system
3 tdb 1.2 * http://www.i-scream.org
4 tdb 1.6 * Copyright (C) 2000-2004 i-scream
5 pajs 1.1 *
6     * This program is free software; you can redistribute it and/or
7     * modify it under the terms of the GNU General Public License
8     * as published by the Free Software Foundation; either version 2
9     * of the License, or (at your option) any later version.
10     *
11     * This program is distributed in the hope that it will be useful,
12     * but WITHOUT ANY WARRANTY; without even the implied warranty of
13     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14     * GNU General Public License for more details.
15     *
16     * You should have received a copy of the GNU General Public License
17     * along with this program; if not, write to the Free Software
18     * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 tdb 1.7 *
20     * $Id$
21 pajs 1.1 */
22    
23     #include <stdio.h>
24     #include <statgrab.h>
25     #include <stdlib.h>
26     #include <unistd.h>
27    
28     int main(int argc, char **argv){
29 tdb 1.4
30 pajs 1.1 extern char *optarg;
31 tdb 1.4 extern int optind;
32     int c;
33 pajs 1.1
34     int delay = 1;
35     mem_stat_t *mem_stats;
36     swap_stat_t *swap_stats;
37    
38     long long total, free;
39    
40 ats 1.3 while ((c = getopt(argc, argv, "d:")) != -1){
41 tdb 1.4 switch (c){
42     case 'd':
43     delay = atoi(optarg);
44     break;
45 pajs 1.1 }
46     }
47    
48 tdb 1.4 /* Initialise statgrab */
49     statgrab_init();
50    
51 tdb 1.5 /* Drop setuid/setgid privileges. */
52     if (statgrab_drop_privileges() != 0) {
53     perror("Error. Failed to drop privileges");
54     return 1;
55     }
56    
57 pajs 1.1 if( ((mem_stats=get_memory_stats()) != NULL) && (swap_stats=get_swap_stats()) != NULL){
58     printf("Total memory in bytes : %lld\n", mem_stats->total);
59     printf("Used memory in bytes : %lld\n", mem_stats->used);
60     printf("Cache memory in bytes : %lld\n", mem_stats->cache);
61     printf("Free memory in bytes : %lld\n", mem_stats->free);
62    
63     printf("Swap total in bytes : %lld\n", swap_stats->total);
64     printf("Swap used in bytes : %lld\n", swap_stats->used);
65     printf("Swap free in bytes : %lld\n", swap_stats->free);
66    
67     total = mem_stats->total + swap_stats->total;
68     free = mem_stats->free + swap_stats->free;
69    
70     printf("Total VM usage : %5.2f%%\n", 100 - (((float)total/(float)free)));
71    
72     }
73     exit(0);
74     }