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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, 11 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

# Content
1 /*
2 * i-scream central monitoring system
3 * http://www.i-scream.org
4 * Copyright (C) 2000-2004 i-scream
5 *
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 *
20 * $Id$
21 */
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
30 extern char *optarg;
31 extern int optind;
32 int c;
33
34 int delay = 1;
35 mem_stat_t *mem_stats;
36 swap_stat_t *swap_stats;
37
38 long long total, free;
39
40 while ((c = getopt(argc, argv, "d:")) != -1){
41 switch (c){
42 case 'd':
43 delay = atoi(optarg);
44 break;
45 }
46 }
47
48 /* Initialise statgrab */
49 statgrab_init();
50
51 /* Drop setuid/setgid privileges. */
52 if (statgrab_drop_privileges() != 0) {
53 perror("Error. Failed to drop privileges");
54 return 1;
55 }
56
57 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 }