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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 1.9 by ats, Sun Oct 19 02:03:02 2003 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
3	>	* http://www.i-scream.org
4	>	* Copyright (C) 2000-2003 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
#	Line 22 | Line 22
22		#include "config.h"
23		#endif
24
25	–	#include <stdio.h>
25		#include "statgrab.h"
26	+	#include "tools.h"
27	+	#include <time.h>
28		#ifdef SOLARIS
29		#include <kstat.h>
30		#include <sys/sysinfo.h>
31		#include <string.h>
32		#endif
33	+	#ifdef LINUX
34	+	#include <stdio.h>
35	+	#endif
36	+	#ifdef FREEBSD
37	+	#include <sys/types.h>
38	+	#include <sys/sysctl.h>
39	+	#endif
40
41	+	static page_stat_t page_stats;
42	+	static int page_stats_uninit=1;
43	+
44		page_stat_t *get_page_stats(){
45	<	static page_stat_t page_stats;
45	>	#ifdef SOLARIS
46		kstat_ctl_t *kc;
47		kstat_t *ksp;
48		cpu_stat_t cs;
49	+	#endif
50	+	#ifdef LINUX
51	+	FILE *f;
52	+	char *line_ptr;
53	+	#endif
54	+	#ifdef FREEBSD
55	+	size_t size;
56	+	#endif
57	+	#ifdef NETBSD
58	+	struct uvmexp *uvm;
59	+	#endif
60
61	<	page_stats.num_pagein=0;
40	<	page_stats.num_pageout=0;
61	>	page_stats.systime = time(NULL);
62		page_stats.pages_pagein=0;
63		page_stats.pages_pageout=0;
64
65	+	#ifdef SOLARIS
66		if ((kc = kstat_open()) == NULL) {
67		return NULL;
68		}
#	Line 50 | Line 72 | page_stat_t *get_page_stats(){
72		continue;
73		}
74
53	–	page_stats.num_pagein+=(long long)cs.cpu_vminfo.pgin;
54	–	page_stats.num_pageout+=(long long)cs.cpu_vminfo.pgout;
75		page_stats.pages_pagein+=(long long)cs.cpu_vminfo.pgpgin;
76		page_stats.pages_pageout+=(long long)cs.cpu_vminfo.pgpgout;
77		}
78
59	–	page_stats.systime=time(NULL);
60	–
79		kstat_close(kc);
80	+	#endif
81	+	#ifdef LINUX
82	+	if((f=fopen("/proc/stat", "r"))==NULL){
83	+	return NULL;
84	+	}
85	+	if((line_ptr=f_read_line(f, "page"))==NULL){
86	+	fclose(f);
87	+	return NULL;
88	+	}
89	+	if((sscanf(line_ptr, "page %lld %lld", &page_stats.pages_pagein, &page_stats.pages_pageout))!=2){
90	+	return NULL;
91	+	}
92	+	fclose(f);
93
94	+	#endif
95	+	#ifdef FREEBSD
96	+	size = sizeof page_stats.pages_pagein;
97	+	if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, 0) < 0){
98	+	return NULL;
99	+	}
100	+	size = sizeof page_stats.pages_pageout;
101	+	if (sysctlbyname("vm.stats.vm.v_swappgsout", &page_stats.pages_pageout, &size, NULL, 0) < 0){
102	+	return NULL;
103	+	}
104	+	#endif
105	+	#ifdef NETBSD
106	+	if ((uvm = get_uvmexp()) == NULL) {
107	+	return NULL;
108	+	}
109	+	page_stats.pages_pagein = uvm->pgswapin;
110	+	page_stats.pages_pageout = uvm->pgswapout;
111	+	#endif
112	+
113		return &page_stats;
114	+	}
115	+
116	+	page_stat_t *get_page_stats_diff(){
117	+	page_stat_t *page_ptr;
118	+	static page_stat_t page_stats_diff;
119	+
120	+	if(page_stats_uninit){
121	+	page_ptr=get_page_stats();
122	+	if(page_ptr==NULL){
123	+	return NULL;
124	+	}
125	+	page_stats_uninit=0;
126	+	return page_ptr;
127	+	}
128	+
129	+	page_stats_diff.pages_pagein=page_stats.pages_pagein;
130	+	page_stats_diff.pages_pageout=page_stats.pages_pageout;
131	+	page_stats_diff.systime=page_stats.systime;
132	+
133	+	page_ptr=get_page_stats();
134	+	if(page_ptr==NULL){
135	+	return NULL;
136	+	}
137	+
138	+	page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein;
139	+	page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout;
140	+	page_stats_diff.systime=page_stats.systime-page_stats_diff.systime;
141	+
142	+	return &page_stats_diff;
143		}

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