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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 1.3 by pajs, Wed Feb 19 00:25:36 2003 UTC vs.
Revision 1.22 by ats, Sun Jul 18 21:30:11 2004 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
49	<
34	<	static page_stat_t page_stats;
49	>	static sg_page_stats page_stats;
50		static int page_stats_uninit=1;
51
52	<	page_stat_t *get_page_stats(){
53	<	kstat_ctl_t *kc;
54	<	kstat_t *ksp;
55	<	cpu_stat_t cs;
52	>	sg_page_stats *sg_get_page_stats(){
53	>	#ifdef SOLARIS
54	>	kstat_ctl_t *kc;
55	>	kstat_t *ksp;
56	>	cpu_stat_t cs;
57	>	#endif
58	>	#if defined(LINUX) || defined(CYGWIN)
59	>	FILE *f;
60	>	char *line_ptr;
61	>	#endif
62	>	#if defined(FREEBSD) || defined(DFBSD)
63	>	size_t size;
64	>	#endif
65	>	#if defined(NETBSD) || defined(OPENBSD)
66	>	struct uvmexp *uvm;
67	>	#endif
68
69	<	page_stats.num_pagein=0;
70	<	page_stats.num_pageout=0;
71	<	page_stats.pages_pagein=0;
45	<	page_stats.pages_pageout=0;
69	>	page_stats.systime = time(NULL);
70	>	page_stats.pages_pagein=0;
71	>	page_stats.pages_pageout=0;
72
73	<	if ((kc = kstat_open()) == NULL) {
74	<	return NULL;
75	<	}
76	<	for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
77	<	if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
78	<	if (kstat_read(kc, ksp, &cs) == -1) {
79	<	continue;
80	<	}
73	>	#ifdef SOLARIS
74	>	if ((kc = kstat_open()) == NULL) {
75	>	sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
76	>	return NULL;
77	>	}
78	>	for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
79	>	if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
80	>	if (kstat_read(kc, ksp, &cs) == -1) {
81	>	continue;
82	>	}
83
56	–	page_stats.num_pagein+=(long long)cs.cpu_vminfo.pgin;
57	–	page_stats.num_pageout+=(long long)cs.cpu_vminfo.pgout;
84		page_stats.pages_pagein+=(long long)cs.cpu_vminfo.pgpgin;
85		page_stats.pages_pageout+=(long long)cs.cpu_vminfo.pgpgout;
86		}
87
62	–	page_stats.systime=time(NULL);
63	–
88		kstat_close(kc);
89	+	#endif
90	+	#if defined(LINUX) || defined(CYGWIN)
91	+	if ((f = fopen("/proc/vmstat", "r")) != NULL) {
92	+	while ((line_ptr = sg_f_read_line(f, "")) != NULL) {
93	+	long long value;
94
95	+	if (sscanf(line_ptr, "%*s %lld", &value) != 1) {
96	+	continue;
97	+	}
98	+
99	+	if (strncmp(line_ptr, "pgpgin ", 7) == 0) {
100	+	page_stats.pages_pagein = value;
101	+	} else if (strncmp(line_ptr, "pgpgout ", 8) == 0) {
102	+	page_stats.pages_pageout = value;
103	+	}
104	+	}
105	+
106	+	fclose(f);
107	+	} else if ((f = fopen("/proc/stat", "r")) != NULL) {
108	+	if ((line_ptr = sg_f_read_line(f, "page")) == NULL) {
109	+	sg_set_error(SG_ERROR_PARSE, "page");
110	+	fclose(f);
111	+	return NULL;
112	+	}
113	+
114	+	if (sscanf(line_ptr, "page %lld %lld", &page_stats.pages_pagein, &page_stats.pages_pageout) != 2) {
115	+	sg_set_error(SG_ERROR_PARSE, "page");
116	+	fclose(f);
117	+	return NULL;
118	+	}
119	+
120	+	fclose(f);
121	+	} else {
122	+	sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/stat");
123	+	return NULL;
124	+	}
125	+	#endif
126	+	#if defined(FREEBSD) || defined(DFBSD)
127	+	size = sizeof page_stats.pages_pagein;
128	+	if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, 0) < 0){
129	+	sg_set_error_with_errno(SG_ERROR_SYSCTLBYNAME,
130	+	"vm.stats.vm.v_swappgsin");
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	+	sg_set_error_with_errno(SG_ERROR_SYSCTLBYNAME,
136	+	"vm.stats.vm.v_swappgsout");
137	+	return NULL;
138	+	}
139	+	#endif
140	+	#if defined(NETBSD) || defined(OPENBSD)
141	+	if ((uvm = sg_get_uvmexp()) == NULL) {
142	+	return NULL;
143	+	}
144	+
145	+	page_stats.pages_pagein = uvm->pgswapin;
146	+	page_stats.pages_pageout = uvm->pgswapout;
147	+	#endif
148	+
149		return &page_stats;
150		}
151
152	<	page_stat_t *get_page_stats_diff(){
153	<	page_stat_t *page_ptr;
154	<	static page_stat_t page_stats_diff;
152	>	sg_page_stats *sg_get_page_stats_diff(){
153	>	sg_page_stats *page_ptr;
154	>	static sg_page_stats page_stats_diff;
155
156		if(page_stats_uninit){
157	<	page_ptr=get_page_stats();
157	>	page_ptr=sg_get_page_stats();
158		if(page_ptr==NULL){
159		return NULL;
160		}
#	Line 79 | Line 162 | page_stat_t *get_page_stats_diff(){
162		return page_ptr;
163		}
164
82	–	page_stats_diff.num_pagein=page_stats.num_pagein;
83	–	page_stats_diff.num_pageout=page_stats.num_pageout;
165		page_stats_diff.pages_pagein=page_stats.pages_pagein;
166		page_stats_diff.pages_pageout=page_stats.pages_pageout;
167		page_stats_diff.systime=page_stats.systime;
168
169	<	page_ptr=get_page_stats();
169	>	page_ptr=sg_get_page_stats();
170		if(page_ptr==NULL){
171		return NULL;
172		}
173
174	<	page_stats_diff.num_pagein=page_stats.num_pagein-page_stats_diff.num_pagein;
175	<	page_stats_diff.num_pageout=page_stats.num_pageout-page_stats_diff.num_pageout;
176	<	page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein;
96	<	page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout;
97	<	page_stats_diff.systime=page_stats.systime-page_stats_diff.systime;
174	>	page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein;
175	>	page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout;
176	>	page_stats_diff.systime=page_stats.systime-page_stats_diff.systime;
177
178		return &page_stats_diff;
179		}

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