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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 1.5 by pajs, Thu Apr 3 20:26:45 2003 UTC

#	Line 22 | Line 22
22		#include "config.h"
23		#endif
24
25	<	#include <stdio.h>
26	<	#include <statgrab.h>
25	>	#include "statgrab.h"
26	>	#include <time.h>
27		#ifdef SOLARIS
28		#include <kstat.h>
29		#include <sys/sysinfo.h>
30	+	#include <string.h>
31		#endif
32	+	#ifdef LINUX
33	+	#include <stdio.h>
34	+	#include "tools.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	<	uint_t swapin, swapout;
49	>	#endif
50	>	#ifdef LINUX
51	>	FILE *f;
52	>	char *line_ptr;
53	>	#endif
54	>	#ifdef FREEBSD
55	>	size_t size;
56	>	#endif
57
58	+	page_stats.pages_pagein=0;
59	+	page_stats.pages_pageout=0;
60	+
61	+	#ifdef SOLARIS
62		if ((kc = kstat_open()) == NULL) {
40	–	errf("kstat_open failure (%m)");
63		return NULL;
64		}
65		for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
#	Line 46 | Line 68 | page_stat_t *get_page_stats(){
68		continue;
69		}
70
71	<	page_stats+=cs.cpu_vminfo.pgswapin;
72	<	page_stats+=cs.cpu_vminfo.pgswapout;
71	>	page_stats.pages_pagein+=(long long)cs.cpu_vminfo.pgpgin;
72	>	page_stats.pages_pageout+=(long long)cs.cpu_vminfo.pgpgout;
73	>	}
74
75	+	page_stats.systime=time(NULL);
76	+
77	+	kstat_close(kc);
78	+	#endif
79	+	#ifdef LINUX
80	+	if((f=fopen("/proc/stat", "r"))==NULL){
81	+	return NULL;
82	+	}
83	+	if((line_ptr=f_read_line(f, "page"))==NULL){
84	+	fclose(f);
85	+	return NULL;
86	+	}
87	+	if((sscanf(line_ptr, "page %lld %lld", &page_stats.pages_pagein, &page_stats.pages_pageout))!=2){
88	+	return NULL;
89	+	}
90	+	page_stats.systime=time(NULL);
91	+	fclose(f);
92	+
93	+	#endif
94	+	#ifdef FREEBSD
95	+	if (sysctlbyname("vm.stats.vm.v_swappgsin", NULL, &size, NULL, NULL) < 0){
96	+	return NULL;
97	+	}
98	+	if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, NULL) < 0){
99	+	return NULL;
100	+	}
101	+	if (sysctlbyname("vm.stats.vm.v_swappgsout", NULL, &size, NULL, NULL) < 0){
102	+	return NULL;
103	+	}
104	+	if (sysctlbyname("vm.stats.vm.v_swappgsout", &page_stats.pages_pageout, &size, NULL, NULL) < 0){
105	+	return NULL;
106	+	}
107	+
108	+	#endif
109	+
110	+	return &page_stats;
111	+	}
112	+
113	+	page_stat_t *get_page_stats_diff(){
114	+	page_stat_t *page_ptr;
115	+	static page_stat_t page_stats_diff;
116	+
117	+	if(page_stats_uninit){
118	+	page_ptr=get_page_stats();
119	+	if(page_ptr==NULL){
120	+	return NULL;
121	+	}
122	+	page_stats_uninit=0;
123	+	return page_ptr;
124	+	}
125	+
126	+	page_stats_diff.pages_pagein=page_stats.pages_pagein;
127	+	page_stats_diff.pages_pageout=page_stats.pages_pageout;
128	+	page_stats_diff.systime=page_stats.systime;
129	+
130	+	page_ptr=get_page_stats();
131	+	if(page_ptr==NULL){
132	+	return NULL;
133	+	}
134	+
135	+	page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein;
136	+	page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout;
137	+	page_stats_diff.systime=page_stats.systime-page_stats_diff.systime;
138	+
139	+	return &page_stats_diff;
140		}

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