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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 1.13 by tdb, Fri Jan 16 15:54:54 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
22		#ifdef HAVE_CONFIG_H
23		#include "config.h"
24		#endif
25
25	–	#include <stdio.h>
26		#include "statgrab.h"
27	+	#include "tools.h"
28	+	#include <time.h>
29		#ifdef SOLARIS
30		#include <kstat.h>
31		#include <sys/sysinfo.h>
32		#include <string.h>
33		#endif
34	+	#if defined(LINUX) || defined(CYGWIN)
35	+	#include <stdio.h>
36	+	#include <string.h>
37	+	#endif
38	+	#ifdef FREEBSD
39	+	#include <sys/types.h>
40	+	#include <sys/sysctl.h>
41	+	#endif
42
43	+	static page_stat_t page_stats;
44	+	static int page_stats_uninit=1;
45	+
46		page_stat_t *get_page_stats(){
47	<	static page_stat_t page_stats;
47	>	#ifdef SOLARIS
48		kstat_ctl_t *kc;
49		kstat_t *ksp;
50		cpu_stat_t cs;
51	+	#endif
52	+	#if defined(LINUX) || defined(CYGWIN)
53	+	FILE *f;
54	+	char *line_ptr;
55	+	#endif
56	+	#ifdef FREEBSD
57	+	size_t size;
58	+	#endif
59	+	#ifdef NETBSD
60	+	struct uvmexp *uvm;
61	+	#endif
62
63	<	page_stats.num_pagein=0;
40	<	page_stats.num_pageout=0;
63	>	page_stats.systime = time(NULL);
64		page_stats.pages_pagein=0;
65		page_stats.pages_pageout=0;
66
67	+	#ifdef SOLARIS
68		if ((kc = kstat_open()) == NULL) {
69		return NULL;
70		}
#	Line 50 | Line 74 | page_stat_t *get_page_stats(){
74		continue;
75		}
76
53	–	page_stats.num_pagein+=(long long)cs.cpu_vminfo.pgin;
54	–	page_stats.num_pageout+=(long long)cs.cpu_vminfo.pgout;
77		page_stats.pages_pagein+=(long long)cs.cpu_vminfo.pgpgin;
78		page_stats.pages_pageout+=(long long)cs.cpu_vminfo.pgpgout;
79		}
80
59	–	page_stats.systime=time(NULL);
60	–
81		kstat_close(kc);
82	+	#endif
83	+	#if defined(LINUX) || defined(CYGWIN)
84	+	if ((f = fopen("/proc/vmstat", "r")) != NULL) {
85	+	while ((line_ptr = f_read_line(f, "")) != NULL) {
86	+	long long value;
87
88	+	if (sscanf(line_ptr, "%*s %lld", &value) != 1) {
89	+	continue;
90	+	}
91	+
92	+	if (strncmp(line_ptr, "pgpgin ", 7) == 0) {
93	+	page_stats.pages_pagein = value;
94	+	} else if (strncmp(line_ptr, "pgpgout ", 8) == 0) {
95	+	page_stats.pages_pageout = value;
96	+	}
97	+	}
98	+
99	+	fclose(f);
100	+	} else if ((f = fopen("/proc/stat", "r")) != NULL) {
101	+	if ((line_ptr = f_read_line(f, "page")) == NULL) {
102	+	fclose(f);
103	+	return NULL;
104	+	}
105	+
106	+	if (sscanf(line_ptr, "page %lld %lld", &page_stats.pages_pagein, &page_stats.pages_pageout) != 2) {
107	+	fclose(f);
108	+	return NULL;
109	+	}
110	+
111	+	fclose(f);
112	+	} else {
113	+	return NULL;
114	+	}
115	+	#endif
116	+	#ifdef FREEBSD
117	+	size = sizeof page_stats.pages_pagein;
118	+	if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, 0) < 0){
119	+	return NULL;
120	+	}
121	+	size = sizeof page_stats.pages_pageout;
122	+	if (sysctlbyname("vm.stats.vm.v_swappgsout", &page_stats.pages_pageout, &size, NULL, 0) < 0){
123	+	return NULL;
124	+	}
125	+	#endif
126	+	#ifdef NETBSD
127	+	if ((uvm = get_uvmexp()) == NULL) {
128	+	return NULL;
129	+	}
130	+	page_stats.pages_pagein = uvm->pgswapin;
131	+	page_stats.pages_pageout = uvm->pgswapout;
132	+	#endif
133	+
134		return &page_stats;
135	+	}
136	+
137	+	page_stat_t *get_page_stats_diff(){
138	+	page_stat_t *page_ptr;
139	+	static page_stat_t page_stats_diff;
140	+
141	+	if(page_stats_uninit){
142	+	page_ptr=get_page_stats();
143	+	if(page_ptr==NULL){
144	+	return NULL;
145	+	}
146	+	page_stats_uninit=0;
147	+	return page_ptr;
148	+	}
149	+
150	+	page_stats_diff.pages_pagein=page_stats.pages_pagein;
151	+	page_stats_diff.pages_pageout=page_stats.pages_pageout;
152	+	page_stats_diff.systime=page_stats.systime;
153	+
154	+	page_ptr=get_page_stats();
155	+	if(page_ptr==NULL){
156	+	return NULL;
157	+	}
158	+
159	+	page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein;
160	+	page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout;
161	+	page_stats_diff.systime=page_stats.systime-page_stats_diff.systime;
162	+
163	+	return &page_stats_diff;
164		}

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