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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 1.2 by pajs, Tue Feb 18 23:12:08 2003 UTC vs.
Revision 1.23 by tdb, Sat Sep 24 13:29:22 2005 UTC

#	Line 1 | Line 1
1	<	/*
2	<	* i-scream central monitoring system
3	<	* http://www.i-scream.org.uk
4	<	* Copyright (C) 2000-2002 i-scream
1	>	/*
2	>	* i-scream libstatgrab
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
25	–	#include <stdio.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	+	#if defined(FREEBSD) || defined(DFBSD)
41	+	#include <sys/types.h>
42	+	#include <sys/sysctl.h>
43	+	#endif
44	+	#if defined(NETBSD) || defined(OPENBSD)
45	+	#include <sys/param.h>
46	+	#include <uvm/uvm.h>
47	+	#endif
48	+	#ifdef WIN32
49	+	#include "win32.h"
50	+	#endif
51
52	<	page_stat_t *get_page_stats(){
53	<	static page_stat_t page_stats;
54	<	kstat_ctl_t *kc;
55	<	kstat_t *ksp;
37	<	cpu_stat_t cs;
52	>	static sg_page_stats page_stats;
53	>	#ifndef WIN32
54	>	static int page_stats_uninit=1;
55	>	#endif
56
57	<	page_stats.num_pagein=0;
58	<	page_stats.num_pageout=0;
59	<	page_stats.pages_pagein=0;
60	<	page_stats.pages_pageout=0;
57	>	sg_page_stats *sg_get_page_stats(){
58	>	#ifdef SOLARIS
59	>	kstat_ctl_t *kc;
60	>	kstat_t *ksp;
61	>	cpu_stat_t cs;
62	>	#endif
63	>	#if defined(LINUX) || defined(CYGWIN)
64	>	FILE *f;
65	>	char *line_ptr;
66	>	#endif
67	>	#if defined(FREEBSD) || defined(DFBSD)
68	>	size_t size;
69	>	#endif
70	>	#if defined(NETBSD) || defined(OPENBSD)
71	>	struct uvmexp *uvm;
72	>	#endif
73
74	<	if ((kc = kstat_open()) == NULL) {
75	<	return NULL;
76	<	}
47	<	for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
48	<	if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
49	<	if (kstat_read(kc, ksp, &cs) == -1) {
50	<	continue;
51	<	}
74	>	page_stats.systime = time(NULL);
75	>	page_stats.pages_pagein=0;
76	>	page_stats.pages_pageout=0;
77
78	<	page_stats.num_pagein+=(long long)cs.cpu_vminfo.pgin;
79	<	page_stats.num_pageout+=(long long)cs.cpu_vminfo.pgout;
78	>	#ifdef SOLARIS
79	>	if ((kc = kstat_open()) == NULL) {
80	>	sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
81	>	return NULL;
82	>	}
83	>	for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
84	>	if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
85	>	if (kstat_read(kc, ksp, &cs) == -1) {
86	>	continue;
87	>	}
88	>
89		page_stats.pages_pagein+=(long long)cs.cpu_vminfo.pgpgin;
90		page_stats.pages_pageout+=(long long)cs.cpu_vminfo.pgpgout;
91		}
92
59	–	page_stats.systime=time(NULL);
60	–
93		kstat_close(kc);
94	+	#endif
95	+	#if defined(LINUX) || defined(CYGWIN)
96	+	if ((f = fopen("/proc/vmstat", "r")) != NULL) {
97	+	while ((line_ptr = sg_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 = sg_f_read_line(f, "page")) == NULL) {
114	+	sg_set_error(SG_ERROR_PARSE, "page");
115	+	fclose(f);
116	+	return NULL;
117	+	}
118	+
119	+	if (sscanf(line_ptr, "page %lld %lld", &page_stats.pages_pagein, &page_stats.pages_pageout) != 2) {
120	+	sg_set_error(SG_ERROR_PARSE, "page");
121	+	fclose(f);
122	+	return NULL;
123	+	}
124	+
125	+	fclose(f);
126	+	} else {
127	+	sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/stat");
128	+	return NULL;
129	+	}
130	+	#endif
131	+	#if defined(FREEBSD) || defined(DFBSD)
132	+	size = sizeof page_stats.pages_pagein;
133	+	if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, 0) < 0){
134	+	sg_set_error_with_errno(SG_ERROR_SYSCTLBYNAME,
135	+	"vm.stats.vm.v_swappgsin");
136	+	return NULL;
137	+	}
138	+	size = sizeof page_stats.pages_pageout;
139	+	if (sysctlbyname("vm.stats.vm.v_swappgsout", &page_stats.pages_pageout, &size, NULL, 0) < 0){
140	+	sg_set_error_with_errno(SG_ERROR_SYSCTLBYNAME,
141	+	"vm.stats.vm.v_swappgsout");
142	+	return NULL;
143	+	}
144	+	#endif
145	+	#if defined(NETBSD) || defined(OPENBSD)
146	+	if ((uvm = sg_get_uvmexp()) == NULL) {
147	+	return NULL;
148	+	}
149	+
150	+	page_stats.pages_pagein = uvm->pgswapin;
151	+	page_stats.pages_pageout = uvm->pgswapout;
152	+	#endif
153	+	#ifdef WIN32
154	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Win32");
155	+	return NULL;
156	+	#endif
157	+
158		return &page_stats;
159	+	}
160	+
161	+	sg_page_stats *sg_get_page_stats_diff(){
162	+	static sg_page_stats page_stats_diff;
163	+	#ifndef WIN32
164	+	sg_page_stats *page_ptr;
165	+
166	+	if(page_stats_uninit){
167	+	page_ptr=sg_get_page_stats();
168	+	if(page_ptr==NULL){
169	+	return NULL;
170	+	}
171	+	page_stats_uninit=0;
172	+	return page_ptr;
173	+	}
174	+
175	+	page_stats_diff.pages_pagein=page_stats.pages_pagein;
176	+	page_stats_diff.pages_pageout=page_stats.pages_pageout;
177	+	page_stats_diff.systime=page_stats.systime;
178	+
179	+	page_ptr=sg_get_page_stats();
180	+	if(page_ptr==NULL){
181	+	return NULL;
182	+	}
183	+
184	+	page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein;
185	+	page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout;
186	+	page_stats_diff.systime=page_stats.systime-page_stats_diff.systime;
187	+
188	+	#else /* WIN32 */
189	+	if(read_counter_large(SG_WIN32_PAGEIN, &page_stats_diff.pages_pagein)) {
190	+	sg_set_error(SG_ERROR_PDHREAD, PDH_PAGEIN);
191	+	return NULL;
192	+	}
193	+	if(read_counter_large(SG_WIN32_PAGEOUT, &page_stats_diff.pages_pageout)) {
194	+	sg_set_error(SG_ERROR_PDHREAD, PDH_PAGEIN);
195	+	return NULL;
196	+	}
197	+	page_stats_diff.systime = 0;
198	+	#endif /* WIN32 */
199	+
200	+	return &page_stats_diff;
201		}

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