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

Comparing projects/libstatgrab/src/libstatgrab/page_stats.c (file contents):
Revision 1.1 by pajs, Tue Feb 18 19:28:30 2003 UTC vs.
Revision 1.15 by tdb, Thu Feb 12 23:04:52 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
25		#include "config.h"
26		#endif
27
28	<	#include <stdio.h>
29	<	#include <statgrab.h>
28	>	#include "statgrab.h"
29	>	#include "tools.h"
30	>	#include <time.h>
31		#ifdef SOLARIS
32		#include <kstat.h>
33		#include <sys/sysinfo.h>
34	+	#include <string.h>
35		#endif
36	+	#if defined(LINUX) || defined(CYGWIN)
37	+	#include <stdio.h>
38	+	#include <string.h>
39	+	#endif
40	+	#ifdef FREEBSD
41	+	#include <sys/types.h>
42	+	#include <sys/sysctl.h>
43	+	#endif
44	+	#ifdef OPENBSD
45	+	#include <stdlib.h>
46	+	#include <sys/param.h>
47	+	#include <sys/sysctl.h>
48	+	#include <uvm/uvm.h>
49	+	#endif
50
51	+	static page_stat_t page_stats;
52	+	static int page_stats_uninit=1;
53	+
54		page_stat_t *get_page_stats(){
55	<	static page_stat_t page_stats;
55	>	#ifdef SOLARIS
56		kstat_ctl_t *kc;
57		kstat_t *ksp;
58		cpu_stat_t cs;
59	<	uint_t swapin, swapout;
59	>	#endif
60	>	#if defined(LINUX) || defined(CYGWIN)
61	>	FILE *f;
62	>	char *line_ptr;
63	>	#endif
64	>	#ifdef FREEBSD
65	>	size_t size;
66	>	#endif
67	>	#if defined(NETBSD) || defined(OPENBSD)
68	>	struct uvmexp *uvm;
69	>	#endif
70	>	#ifdef OPENBSD
71	>	int mib[2];
72	>	size_t size;
73	>	#endif
74
75	+	page_stats.systime = time(NULL);
76	+	page_stats.pages_pagein=0;
77	+	page_stats.pages_pageout=0;
78	+
79	+	#ifdef SOLARIS
80		if ((kc = kstat_open()) == NULL) {
40	–	errf("kstat_open failure (%m)");
81		return NULL;
82		}
83		for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
#	Line 46 | Line 86 | page_stat_t *get_page_stats(){
86		continue;
87		}
88
89	<	page_stats+=cs.cpu_vminfo.pgswapin;
90	<	page_stats+=cs.cpu_vminfo.pgswapout;
89	>	page_stats.pages_pagein+=(long long)cs.cpu_vminfo.pgpgin;
90	>	page_stats.pages_pageout+=(long long)cs.cpu_vminfo.pgpgout;
91	>	}
92
93	+	kstat_close(kc);
94	+	#endif
95	+	#if defined(LINUX) || defined(CYGWIN)
96	+	if ((f = fopen("/proc/vmstat", "r")) != NULL) {
97	+	while ((line_ptr = f_read_line(f, "")) != NULL) {
98	+	long long value;
99	+
100	+	if (sscanf(line_ptr, "%*s %lld", &value) != 1) {
101	+	continue;
102	+	}
103	+
104	+	if (strncmp(line_ptr, "pgpgin ", 7) == 0) {
105	+	page_stats.pages_pagein = value;
106	+	} else if (strncmp(line_ptr, "pgpgout ", 8) == 0) {
107	+	page_stats.pages_pageout = value;
108	+	}
109	+	}
110	+
111	+	fclose(f);
112	+	} else if ((f = fopen("/proc/stat", "r")) != NULL) {
113	+	if ((line_ptr = f_read_line(f, "page")) == NULL) {
114	+	fclose(f);
115	+	return NULL;
116	+	}
117	+
118	+	if (sscanf(line_ptr, "page %lld %lld", &page_stats.pages_pagein, &page_stats.pages_pageout) != 2) {
119	+	fclose(f);
120	+	return NULL;
121	+	}
122	+
123	+	fclose(f);
124	+	} else {
125	+	return NULL;
126	+	}
127	+	#endif
128	+	#ifdef FREEBSD
129	+	size = sizeof page_stats.pages_pagein;
130	+	if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, 0) < 0){
131	+	return NULL;
132	+	}
133	+	size = sizeof page_stats.pages_pageout;
134	+	if (sysctlbyname("vm.stats.vm.v_swappgsout", &page_stats.pages_pageout, &size, NULL, 0) < 0){
135	+	return NULL;
136	+	}
137	+	#endif
138	+	#ifdef NETBSD
139	+	if ((uvm = get_uvmexp()) == NULL) {
140	+	return NULL;
141	+	}
142	+	#endif
143	+	#ifdef OPENBSD
144	+	mib[0] = CTL_VM;
145	+	mib[1] = VM_UVMEXP;
146	+
147	+	if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) {
148	+	return NULL;
149	+	}
150	+
151	+	uvm = malloc(size);
152	+	if (uvm == NULL) {
153	+	return NULL;
154	+	}
155	+
156	+	if (sysctl(mib, 2, uvm, &size, NULL, 0) < 0) {
157	+	return NULL;
158	+	}
159	+	#endif
160	+	#if defined(NETBSD) || defined(OPENBSD)
161	+	page_stats.pages_pagein = uvm->pgswapin;
162	+	page_stats.pages_pageout = uvm->pgswapout;
163	+	#endif
164	+
165	+	#ifdef OPENBSD
166	+	free(uvm);
167	+	#endif
168	+
169	+	return &page_stats;
170	+	}
171	+
172	+	page_stat_t *get_page_stats_diff(){
173	+	page_stat_t *page_ptr;
174	+	static page_stat_t page_stats_diff;
175	+
176	+	if(page_stats_uninit){
177	+	page_ptr=get_page_stats();
178	+	if(page_ptr==NULL){
179	+	return NULL;
180	+	}
181	+	page_stats_uninit=0;
182	+	return page_ptr;
183	+	}
184	+
185	+	page_stats_diff.pages_pagein=page_stats.pages_pagein;
186	+	page_stats_diff.pages_pageout=page_stats.pages_pageout;
187	+	page_stats_diff.systime=page_stats.systime;
188	+
189	+	page_ptr=get_page_stats();
190	+	if(page_ptr==NULL){
191	+	return NULL;
192	+	}
193	+
194	+	page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein;
195	+	page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout;
196	+	page_stats_diff.systime=page_stats.systime-page_stats_diff.systime;
197	+
198	+	return &page_stats_diff;
199		}

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