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root/i-scream/projects/libstatgrab/src/libstatgrab/page_stats.c
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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 1.12 by pajs, Fri Jan 9 10:06:01 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
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 + #if defined(LINUX) || defined(CYGWIN)
34 + #include <stdio.h>
35 + #include <string.h>
36 + #endif
37 + #ifdef FREEBSD
38 + #include <sys/types.h>
39 + #include <sys/sysctl.h>
40 + #endif
41  
42 + static page_stat_t page_stats;
43 + static int page_stats_uninit=1;
44 +
45   page_stat_t *get_page_stats(){
46 <        static page_stat_t page_stats;
46 > #ifdef SOLARIS
47          kstat_ctl_t *kc;
48          kstat_t *ksp;
49          cpu_stat_t cs;
50 + #endif
51 + #if defined(LINUX) || defined(CYGWIN)
52 +        FILE *f;
53 +        char *line_ptr;
54 + #endif
55 + #ifdef FREEBSD
56 +        size_t size;
57 + #endif
58 + #ifdef NETBSD
59 +        struct uvmexp *uvm;
60 + #endif
61  
62 <        page_stats.num_pagein=0;
40 <        page_stats.num_pageout=0;
62 >        page_stats.systime = time(NULL);
63          page_stats.pages_pagein=0;
64          page_stats.pages_pageout=0;
65  
66 + #ifdef SOLARIS
67          if ((kc = kstat_open()) == NULL) {
68                  return NULL;
69          }
# Line 50 | Line 73 | page_stat_t *get_page_stats(){
73                          continue;
74                  }
75  
53 –                page_stats.num_pagein+=(long long)cs.cpu_vminfo.pgin;
54 –                page_stats.num_pageout+=(long long)cs.cpu_vminfo.pgout;
76                  page_stats.pages_pagein+=(long long)cs.cpu_vminfo.pgpgin;
77                  page_stats.pages_pageout+=(long long)cs.cpu_vminfo.pgpgout;
78          }
79  
59 –        page_stats.systime=time(NULL);
60 –
80          kstat_close(kc);
81 + #endif
82 + #if defined(LINUX) || defined(CYGWIN)
83 +        if ((f = fopen("/proc/vmstat", "r")) != NULL) {
84 +                while ((line_ptr = f_read_line(f, "")) != NULL) {
85 +                        long long value;
86  
87 +                        if (sscanf(line_ptr, "%*s %lld", &value) != 1) {
88 +                                continue;
89 +                        }
90 +
91 +                        if (strncmp(line_ptr, "pgpgin ", 7) == 0) {
92 +                                page_stats.pages_pagein = value;
93 +                        } else if (strncmp(line_ptr, "pgpgout ", 8) == 0) {
94 +                                page_stats.pages_pageout = value;
95 +                        }
96 +                }
97 +
98 +                fclose(f);
99 +        } else if ((f = fopen("/proc/stat", "r")) != NULL) {
100 +                if ((line_ptr = f_read_line(f, "page")) == NULL) {
101 +                        fclose(f);
102 +                        return NULL;
103 +                }
104 +
105 +                if (sscanf(line_ptr, "page %lld %lld", &page_stats.pages_pagein, &page_stats.pages_pageout) != 2) {
106 +                        fclose(f);
107 +                        return NULL;
108 +                }
109 +
110 +                fclose(f);
111 +        } else {
112 +                return NULL;
113 +        }
114 + #endif
115 + #ifdef FREEBSD
116 +        size = sizeof page_stats.pages_pagein;
117 +        if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, 0) < 0){
118 +                return NULL;
119 +        }
120 +        size = sizeof page_stats.pages_pageout;
121 +        if (sysctlbyname("vm.stats.vm.v_swappgsout", &page_stats.pages_pageout, &size, NULL, 0) < 0){
122 +                return NULL;
123 +        }
124 + #endif
125 + #ifdef NETBSD
126 +        if ((uvm = get_uvmexp()) == NULL) {
127 +                return NULL;
128 +        }
129 +        page_stats.pages_pagein = uvm->pgswapin;
130 +        page_stats.pages_pageout = uvm->pgswapout;
131 + #endif
132 +
133          return &page_stats;
134 + }
135 +
136 + page_stat_t *get_page_stats_diff(){
137 +        page_stat_t *page_ptr;
138 +        static page_stat_t page_stats_diff;
139 +
140 +        if(page_stats_uninit){
141 +                page_ptr=get_page_stats();
142 +                if(page_ptr==NULL){
143 +                        return NULL;
144 +                }
145 +                page_stats_uninit=0;
146 +                return page_ptr;
147 +        }
148 +
149 +        page_stats_diff.pages_pagein=page_stats.pages_pagein;
150 +        page_stats_diff.pages_pageout=page_stats.pages_pageout;
151 +        page_stats_diff.systime=page_stats.systime;
152 +
153 +        page_ptr=get_page_stats();
154 +        if(page_ptr==NULL){
155 +                return NULL;
156 +        }
157 +
158 +        page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein;
159 +        page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout;
160 +        page_stats_diff.systime=page_stats.systime-page_stats_diff.systime;
161 +        
162 +        return &page_stats_diff;
163   }

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