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root/i-scream/projects/libstatgrab/examples/vm_stats.c
Revision: 1.4
Committed: Sun Nov 23 13:51:10 2003 UTC (20 years, 11 months ago) by tdb
Content type: text/plain
Branch: MAIN
Changes since 1.3: +10 -10 lines
Log Message:
Add statgrab_init() call to the examples. If people are going to copy them
I guess we should try and make them correct :-)

Also tidied up whitespace in the examples.

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 tdb 1.4
28 pajs 1.1 extern char *optarg;
29 tdb 1.4 extern int optind;
30     int c;
31 pajs 1.1
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 tdb 1.4 switch (c){
40     case 'd':
41     delay = atoi(optarg);
42     break;
43 pajs 1.1 }
44     }
45    
46 tdb 1.4 /* Initialise statgrab */
47     statgrab_init();
48    
49 pajs 1.1 if( ((mem_stats=get_memory_stats()) != NULL) && (swap_stats=get_swap_stats()) != NULL){
50     printf("Total memory in bytes : %lld\n", mem_stats->total);
51     printf("Used memory in bytes : %lld\n", mem_stats->used);
52     printf("Cache memory in bytes : %lld\n", mem_stats->cache);
53     printf("Free memory in bytes : %lld\n", mem_stats->free);
54    
55     printf("Swap total in bytes : %lld\n", swap_stats->total);
56     printf("Swap used in bytes : %lld\n", swap_stats->used);
57     printf("Swap free in bytes : %lld\n", swap_stats->free);
58    
59     total = mem_stats->total + swap_stats->total;
60     free = mem_stats->free + swap_stats->free;
61    
62     printf("Total VM usage : %5.2f%%\n", 100 - (((float)total/(float)free)));
63    
64     }
65     exit(0);
66     }