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root/i-scream/projects/libstatgrab/src/libstatgrab/swap_stats.c
Revision: 1.7
Committed: Sun Oct 19 02:03:02 2003 UTC (20 years, 7 months ago) by ats
Content type: text/plain
Branch: MAIN
CVS Tags: LIBSTATGRAB_0_7
Changes since 1.6: +12 -0 lines
Log Message:
Initial support for NetBSD. This adds NetBSD support for everything
except diskio stats (since they're even more disturbingly complex to get
at on NetBSD than the three OSs we already support). Tested against
NetBSD 1.6 on i386.

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 #ifdef HAVE_CONFIG_H
22 #include "config.h"
23 #endif
24
25 #include "statgrab.h"
26 #include "tools.h"
27 #ifdef SOLARIS
28 #include <sys/stat.h>
29 #include <sys/swap.h>
30 #include <unistd.h>
31 #endif
32 #ifdef LINUX
33 #include <stdio.h>
34 #endif
35 #ifdef FREEBSD
36 #include <unistd.h>
37 #include <sys/types.h>
38 #include <kvm.h>
39 #endif
40
41 swap_stat_t *get_swap_stats(){
42
43 static swap_stat_t swap_stat;
44
45 #ifdef SOLARIS
46 struct anoninfo ai;
47 int pagesize;
48 #endif
49 #ifdef LINUX
50 FILE *f;
51 char *line_ptr;
52 #endif
53 #ifdef FREEBSD
54 struct kvm_swap swapinfo;
55 int pagesize;
56 kvm_t *kvmd;
57 #endif
58 #ifdef NETBSD
59 struct uvmexp *uvm;
60 #endif
61
62 #ifdef SOLARIS
63 if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
64 return NULL;
65 }
66 if (swapctl(SC_AINFO, &ai) == -1) {
67 return NULL;
68 }
69 swap_stat.total = (long long)ai.ani_max * (long long)pagesize;
70 swap_stat.used = (long long)ai.ani_resv * (long long)pagesize;
71 swap_stat.free = swap_stat.total - swap_stat.used;
72 #endif
73 #ifdef LINUX
74 if ((f=fopen("/proc/meminfo", "r" ))==NULL) {
75 return NULL;
76 }
77 if((line_ptr=f_read_line(f, "Swap:"))==NULL){
78 fclose(f);
79 return NULL;
80 }
81 if((sscanf(line_ptr, "Swap: %lld %lld %lld", &swap_stat.total, &swap_stat.used, &swap_stat.free))!=3){
82 fclose(f);
83 return NULL;
84 }
85 fclose(f);
86 #endif
87 #ifdef FREEBSD
88 if((kvmd = get_kvm()) == NULL){
89 return NULL;
90 }
91 if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){
92 return NULL;
93 }
94 pagesize=getpagesize();
95
96 swap_stat.total= (long long)swapinfo.ksw_total * (long long)pagesize;
97 swap_stat.used = (long long)swapinfo.ksw_used * (long long)pagesize;
98 swap_stat.free = swap_stat.total-swap_stat.used;
99 #endif
100 #ifdef NETBSD
101 if ((uvm = get_uvmexp()) == NULL) {
102 return NULL;
103 }
104
105 swap_stat.total = (long long)uvm->pagesize * (long long)uvm->swpages;
106 swap_stat.used = (long long)uvm->pagesize * (long long)uvm->swpginuse;
107 swap_stat.free = swap_stat.total - swap_stat.used;
108 #endif
109 return &swap_stat;
110
111 }