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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 (21 years ago) by ats
Content type: text/plain
Branch: MAIN
Changes since 1.2: +1 -1 lines
Log Message:
Fix getopt() return value.

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     * Copyright (C) 2000-2003 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     */
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 ats 1.3 while ((c = getopt(argc, argv, "d:")) != -1){
39 pajs 1.1 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