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root/i-scream/projects/libstatgrab/src/libstatgrab/swap_stats.c

Comparing projects/libstatgrab/src/libstatgrab/swap_stats.c (file contents):
Revision 1.3 by pajs, Fri Mar 7 15:43:14 2003 UTC vs.
Revision 1.15 by tdb, Sat Feb 14 19:03:35 2004 UTC

#	Line 1 | Line 1
1	<	/*
1	>	/*
2		* i-scream central monitoring system
3	<	* http://www.i-scream.org.uk
4	<	* Copyright (C) 2000-2002 i-scream
3	>	* http://www.i-scream.org
4	>	* Copyright (C) 2000-2004 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.
6	>	* This library is free software; you can redistribute it and/or
7	>	* modify it under the terms of the GNU Lesser General Public
8	>	* License as published by the Free Software Foundation; either
9	>	* version 2.1 of the License, or (at your option) any later version.
10		*
11	<	* This program is distributed in the hope that it will be useful,
11	>	* This library 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.
13	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14	>	* Lesser 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.
16	>	* You should have received a copy of the GNU Lesser General Public
17	>	* License along with this library; if not, write to the Free Software
18	>	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19	>	* 02111-1307 USA
20	>	*
21	>	* $Id$
22		*/
23
24		#ifdef HAVE_CONFIG_H
#	Line 23 | Line 26
26		#endif
27
28		#include "statgrab.h"
29	+	#include "tools.h"
30		#ifdef SOLARIS
31		#include <sys/stat.h>
32		#include <sys/swap.h>
33		#include <unistd.h>
34		#endif
35	<	#ifdef LINUX
35	>	#if defined(LINUX) || defined(CYGWIN)
36		#include <stdio.h>
37	<	#include "tools.h"
37	>	#include <string.h>
38		#endif
39	+	#ifdef FREEBSD
40	+	#ifdef FREEBSD5
41	+	#include <sys/param.h>
42	+	#include <sys/sysctl.h>
43	+	#include <sys/user.h>
44	+	#else
45	+	#include <unistd.h>
46	+	#include <sys/types.h>
47	+	#include <kvm.h>
48	+	#endif
49	+	#endif
50	+	#if defined(NETBSD) || defined(OPENBSD)
51	+	#include <sys/param.h>
52	+	#include <sys/time.h>
53	+	#include <uvm/uvm.h>
54	+	#endif
55
56		swap_stat_t *get_swap_stats(){
57
#	Line 41 | Line 61 | swap_stat_t *get_swap_stats(){
61		struct anoninfo ai;
62		int pagesize;
63		#endif
64	<	#ifdef LINUX
64	>	#if defined(LINUX) || defined(CYGWIN)
65		FILE *f;
66		char *line_ptr;
67	+	unsigned long long value;
68		#endif
69	+	#ifdef FREEBSD
70	+	int pagesize;
71	+	#ifdef FREEBSD5
72	+	struct xswdev xsw;
73	+	int mib[16], n;
74	+	size_t mibsize, size;
75	+	#else
76	+	struct kvm_swap swapinfo;
77	+	kvm_t *kvmd;
78	+	#endif
79	+	#endif
80	+	#if defined(NETBSD) || defined(OPENBSD)
81	+	struct uvmexp *uvm;
82	+	#endif
83
84		#ifdef SOLARIS
85		if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
#	Line 57 | Line 92 | swap_stat_t *get_swap_stats(){
92		swap_stat.used = (long long)ai.ani_resv * (long long)pagesize;
93		swap_stat.free = swap_stat.total - swap_stat.used;
94		#endif
95	<	#ifdef LINUX
96	<	if ((f=fopen("/proc/meminfo", "r" ))==NULL) {
95	>	#if defined(LINUX) || defined(CYGWIN)
96	>	if ((f = fopen("/proc/meminfo", "r")) == NULL) {
97		return NULL;
98		}
99	<	if((line_ptr=f_read_line(f, "Swap:"))==NULL){
100	<	fclose(f);
99	>
100	>	while ((line_ptr = f_read_line(f, "")) != NULL) {
101	>	if (sscanf(line_ptr, "%*s %llu kB", &value) != 1) {
102	>	continue;
103	>	}
104	>	value *= 1024;
105	>
106	>	if (strncmp(line_ptr, "SwapTotal:", 10) == 0) {
107	>	swap_stat.total = value;
108	>	} else if (strncmp(line_ptr, "SwapFree:", 9) == 0) {
109	>	swap_stat.free = value;
110	>	}
111	>	}
112	>
113	>	fclose(f);
114	>	swap_stat.used = swap_stat.total - swap_stat.free;
115	>	#endif
116	>	#ifdef FREEBSD
117	>	pagesize=getpagesize();
118	>
119	>	#ifdef FREEBSD5
120	>	swap_stat.total = 0;
121	>	swap_stat.used = 0;
122	>
123	>	mibsize = sizeof mib / sizeof mib[0];
124	>	if (sysctlnametomib("vm.swap_info", mib, &mibsize) < 0) {
125		return NULL;
126		}
127	<	if((sscanf(line_ptr, "Swap: %lld %lld %lld", &swap_stat.total, &swap_stat.used, &swap_stat.free))!=3){
128	<	fclose(f);
127	>	for (n = 0; ; ++n) {
128	>	mib[mibsize] = n;
129	>	size = sizeof xsw;
130	>	if (sysctl(mib, mibsize + 1, &xsw, &size, NULL, NULL) < 0) {
131	>	break;
132	>	}
133	>	if (xsw.xsw_version != XSWDEV_VERSION) {
134	>	return NULL;
135	>	}
136	>	swap_stat.total += (long long) xsw.xsw_nblks;
137	>	swap_stat.used += (long long) xsw.xsw_used;
138	>	}
139	>	if (errno != ENOENT) {
140		return NULL;
141		}
142	<	fclose(f);
142	>	#else
143	>	if((kvmd = get_kvm()) == NULL){
144	>	return NULL;
145	>	}
146	>	if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){
147	>	return NULL;
148	>	}
149	>
150	>	swap_stat.total = (long long)swapinfo.ksw_total;
151	>	swap_stat.used = (long long)swapinfo.ksw_used;
152	>	#endif
153	>	swap_stat.total *= pagesize;
154	>	swap_stat.used *= pagesize;
155	>	swap_stat.free = swap_stat.total - swap_stat.used;
156	>	#endif
157	>	#if defined(NETBSD) || defined(OPENBSD)
158	>	if ((uvm = get_uvmexp()) == NULL) {
159	>	return NULL;
160	>	}
161	>
162	>	swap_stat.total = (long long)uvm->pagesize * (long long)uvm->swpages;
163	>	swap_stat.used = (long long)uvm->pagesize * (long long)uvm->swpginuse;
164	>	swap_stat.free = swap_stat.total - swap_stat.used;
165		#endif
166
167		return &swap_stat;

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