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root/i-scream/projects/libstatgrab/src/libstatgrab/swap_stats.c
Revision: 1.4
Committed: Fri Apr 4 11:45:55 2003 UTC (21 years, 1 month ago) by pajs
Content type: text/plain
Branch: MAIN
CVS Tags: LIBSTATGRAB_0_4
Changes since 1.3: +25 -0 lines
Log Message:
Now works on freebsd

File Contents

# User Rev Content
1 pajs 1.1 /*
2     * i-scream central monitoring system
3     * http://www.i-scream.org.uk
4     * Copyright (C) 2000-2002 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     #ifdef HAVE_CONFIG_H
22     #include "config.h"
23     #endif
24    
25     #include "statgrab.h"
26     #ifdef SOLARIS
27     #include <sys/stat.h>
28     #include <sys/swap.h>
29     #include <unistd.h>
30     #endif
31 pajs 1.3 #ifdef LINUX
32     #include <stdio.h>
33     #include "tools.h"
34     #endif
35 pajs 1.4 #ifdef FREEBSD
36     #include <unistd.h>
37     #include <sys/types.h>
38     #include <fcntl.h>
39     #include <kvm.h>
40     #endif
41 pajs 1.1
42     swap_stat_t *get_swap_stats(){
43    
44     static swap_stat_t swap_stat;
45    
46 pajs 1.3 #ifdef SOLARIS
47 pajs 1.1 struct anoninfo ai;
48     int pagesize;
49 pajs 1.3 #endif
50     #ifdef LINUX
51     FILE *f;
52     char *line_ptr;
53     #endif
54 pajs 1.4 #ifdef FREEBSD
55     struct kvm_swap swapinfo;
56     int pagesize;
57     kvm_t *kvmd = NULL;
58     #endif
59 pajs 1.1
60 pajs 1.3 #ifdef SOLARIS
61 pajs 1.1 if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
62     return NULL;
63     }
64     if (swapctl(SC_AINFO, &ai) == -1) {
65     return NULL;
66     }
67     swap_stat.total = (long long)ai.ani_max * (long long)pagesize;
68     swap_stat.used = (long long)ai.ani_resv * (long long)pagesize;
69     swap_stat.free = swap_stat.total - swap_stat.used;
70 pajs 1.3 #endif
71     #ifdef LINUX
72     if ((f=fopen("/proc/meminfo", "r" ))==NULL) {
73     return NULL;
74     }
75     if((line_ptr=f_read_line(f, "Swap:"))==NULL){
76     fclose(f);
77     return NULL;
78     }
79     if((sscanf(line_ptr, "Swap: %lld %lld %lld", &swap_stat.total, &swap_stat.used, &swap_stat.free))!=3){
80     fclose(f);
81     return NULL;
82     }
83     fclose(f);
84     #endif
85 pajs 1.4 #ifdef FREEBSD
86     if((kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL)) == NULL){
87     return NULL;
88     }
89     if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){
90     return NULL;
91     }
92     pagesize=getpagesize();
93 pajs 1.1
94 pajs 1.4 swap_stat.total= (long long)swapinfo.ksw_total * (long long)pagesize;
95     swap_stat.used = (long long)swapinfo.ksw_used * (long long)pagesize;
96     swap_stat.free = swap_stat.total-swap_stat.used;
97    
98     kvm_close(kvmd);
99     #endif
100 pajs 1.1 return &swap_stat;
101    
102     }