src/libstatgrab/swap_stats.c

/* 
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2003 i-scream
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "statgrab.h"
#include "tools.h"
#ifdef SOLARIS
#include <sys/stat.h>
#include <sys/swap.h>
#include <unistd.h>
#endif
#ifdef LINUX
#include <stdio.h>
#endif
#ifdef FREEBSD
#include <unistd.h>
#include <sys/types.h>
#include <kvm.h>
#endif

swap_stat_t *get_swap_stats(){

        static swap_stat_t swap_stat;

#ifdef SOLARIS
        struct anoninfo ai;
        int pagesize;
#endif
#ifdef LINUX
        FILE *f;
        char *line_ptr;
#endif
#ifdef FREEBSD
        struct kvm_swap swapinfo;
        int pagesize;
        kvm_t *kvmd;
#endif
#ifdef NETBSD
        struct uvmexp *uvm;
#endif

#ifdef SOLARIS
        if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
                return NULL;
        }
        if (swapctl(SC_AINFO, &ai) == -1) {
                return NULL;
        }
        swap_stat.total = (long long)ai.ani_max * (long long)pagesize;
        swap_stat.used = (long long)ai.ani_resv * (long long)pagesize;
        swap_stat.free = swap_stat.total - swap_stat.used;
#endif
#ifdef LINUX
        if ((f=fopen("/proc/meminfo", "r" ))==NULL) {
                return NULL;
        }
        if((line_ptr=f_read_line(f, "Swap:"))==NULL){
                fclose(f);
                return NULL;
        }
        if((sscanf(line_ptr, "Swap: %lld %lld %lld", &swap_stat.total, &swap_stat.used, &swap_stat.free))!=3){
                fclose(f);
                return NULL;
        }
        fclose(f);
#endif
#ifdef FREEBSD
        if((kvmd = get_kvm()) == NULL){
                return NULL;
        }
        if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){
                return NULL;
        }
        pagesize=getpagesize();

        swap_stat.total= (long long)swapinfo.ksw_total * (long long)pagesize;
        swap_stat.used = (long long)swapinfo.ksw_used * (long long)pagesize;
        swap_stat.free = swap_stat.total-swap_stat.used;
#endif
#ifdef NETBSD
        if ((uvm = get_uvmexp()) == NULL) {
                return NULL;
        }

        swap_stat.total = (long long)uvm->pagesize * (long long)uvm->swpages;
        swap_stat.used = (long long)uvm->pagesize * (long long)uvm->swpginuse;
        swap_stat.free = swap_stat.total - swap_stat.used;
#endif
        return &swap_stat;

}
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.
#	User	Rev	Content
1	pajs	1.1	/*
2			* i-scream central monitoring system
3	tdb	1.5	* 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			#ifdef HAVE_CONFIG_H
22			#include "config.h"
23			#endif
24
25			#include "statgrab.h"
26	ats	1.6	#include "tools.h"
27	pajs	1.1	#ifdef SOLARIS
28			#include <sys/stat.h>
29			#include <sys/swap.h>
30			#include <unistd.h>
31			#endif
32	pajs	1.3	#ifdef LINUX
33			#include <stdio.h>
34			#endif
35	pajs	1.4	#ifdef FREEBSD
36			#include <unistd.h>
37			#include <sys/types.h>
38			#include <kvm.h>
39			#endif
40	pajs	1.1
41			swap_stat_t *get_swap_stats(){
42
43			static swap_stat_t swap_stat;
44
45	pajs	1.3	#ifdef SOLARIS
46	pajs	1.1	struct anoninfo ai;
47			int pagesize;
48	pajs	1.3	#endif
49			#ifdef LINUX
50			FILE *f;
51			char *line_ptr;
52			#endif
53	pajs	1.4	#ifdef FREEBSD
54			struct kvm_swap swapinfo;
55			int pagesize;
56	ats	1.6	kvm_t *kvmd;
57	pajs	1.4	#endif
58	ats	1.7	#ifdef NETBSD
59			struct uvmexp *uvm;
60			#endif
61	pajs	1.1
62	pajs	1.3	#ifdef SOLARIS
63	pajs	1.1	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	pajs	1.3	#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	pajs	1.4	#ifdef FREEBSD
88	ats	1.6	if((kvmd = get_kvm()) == NULL){
89	pajs	1.4	return NULL;
90			}
91			if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){
92			return NULL;
93			}
94			pagesize=getpagesize();
95	pajs	1.1
96	pajs	1.4	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	ats	1.7	#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	pajs	1.4	#endif
109	pajs	1.1	return &swap_stat;
110
111			}