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root/i-scream/projects/libstatgrab/examples/vm_stats.c
Revision: 1.3
Committed: Fri Nov 7 18:43:56 2003 UTC (20 years, 6 months ago) by ats
Content type: text/plain
Branch: MAIN
Changes since 1.2: +1 -1 lines
Log Message:
Fix getopt() return value.

File Contents

# Content
1 /*
2 * i-scream central monitoring system
3 * http://www.i-scream.org
4 * Copyright (C) 2000-2003 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
21 #include <stdio.h>
22 #include <statgrab.h>
23 #include <stdlib.h>
24 #include <unistd.h>
25
26 int main(int argc, char **argv){
27
28 extern char *optarg;
29 extern int optind;
30 int c;
31
32 int delay = 1;
33 mem_stat_t *mem_stats;
34 swap_stat_t *swap_stats;
35
36 long long total, free;
37
38 while ((c = getopt(argc, argv, "d:")) != -1){
39 switch (c){
40 case 'd':
41 delay = atoi(optarg);
42 break;
43 }
44 }
45
46 if( ((mem_stats=get_memory_stats()) != NULL) && (swap_stats=get_swap_stats()) != NULL){
47 printf("Total memory in bytes : %lld\n", mem_stats->total);
48 printf("Used memory in bytes : %lld\n", mem_stats->used);
49 printf("Cache memory in bytes : %lld\n", mem_stats->cache);
50 printf("Free memory in bytes : %lld\n", mem_stats->free);
51
52 printf("Swap total in bytes : %lld\n", swap_stats->total);
53 printf("Swap used in bytes : %lld\n", swap_stats->used);
54 printf("Swap free in bytes : %lld\n", swap_stats->free);
55
56 total = mem_stats->total + swap_stats->total;
57 free = mem_stats->free + swap_stats->free;
58
59 printf("Total VM usage : %5.2f%%\n", 100 - (((float)total/(float)free)));
60
61 }
62 exit(0);
63 }
64
65
66