ViewVC Help
View File | Revision Log | Show Annotations | Revision Graph | Root Listing
root/i-scream/projects/libstatgrab/examples/vm_stats.c
Revision: 1.6
Committed: Fri Jan 16 15:54:52 2004 UTC (20 years, 9 months ago) by tdb
Content type: text/plain
Branch: MAIN
Changes since 1.5: +1 -1 lines
Log Message:
Alter the licensing of libstatgrab. The library part is now under the
LGPL, whilst the tools/examples are under the GPL. Both licenses are
included in the distribution (and are both now in CVS). Also made a
minor alteration to the webpage where it said everything was licensed
under the GPL.

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     */
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 tdb 1.5 /* Drop setuid/setgid privileges. */
50     if (statgrab_drop_privileges() != 0) {
51     perror("Error. Failed to drop privileges");
52     return 1;
53     }
54    
55 pajs 1.1 if( ((mem_stats=get_memory_stats()) != NULL) && (swap_stats=get_swap_stats()) != NULL){
56     printf("Total memory in bytes : %lld\n", mem_stats->total);
57     printf("Used memory in bytes : %lld\n", mem_stats->used);
58     printf("Cache memory in bytes : %lld\n", mem_stats->cache);
59     printf("Free memory in bytes : %lld\n", mem_stats->free);
60    
61     printf("Swap total in bytes : %lld\n", swap_stats->total);
62     printf("Swap used in bytes : %lld\n", swap_stats->used);
63     printf("Swap free in bytes : %lld\n", swap_stats->free);
64    
65     total = mem_stats->total + swap_stats->total;
66     free = mem_stats->free + swap_stats->free;
67    
68     printf("Total VM usage : %5.2f%%\n", 100 - (((float)total/(float)free)));
69    
70     }
71     exit(0);
72     }