| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 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 |
| 8 |
* as published by the Free Software Foundation; either version 2 |
| 9 |
* of the License, or (at your option) any later version. |
| 10 |
* |
| 11 |
* This program 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. |
| 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. |
| 19 |
*/ |
| 20 |
|
| 21 |
#ifdef HAVE_CONFIG_H |
| 22 |
#include "config.h" |
| 23 |
#endif |
| 24 |
|
| 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 |
#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 |
|
| 58 |
page_stats.pages_pagein=0; |
| 59 |
page_stats.pages_pageout=0; |
| 60 |
|
| 61 |
#ifdef SOLARIS |
| 62 |
if ((kc = kstat_open()) == NULL) { |
| 63 |
return NULL; |
| 64 |
} |
| 65 |
for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) { |
| 66 |
if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue; |
| 67 |
if (kstat_read(kc, ksp, &cs) == -1) { |
| 68 |
continue; |
| 69 |
} |
| 70 |
|
| 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 |
size = sizeof page_stats.pages_pagein; |
| 96 |
if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, 0) < 0){ |
| 97 |
return NULL; |
| 98 |
} |
| 99 |
size = sizeof page_stats.pages_pageout; |
| 100 |
if (sysctlbyname("vm.stats.vm.v_swappgsout", &page_stats.pages_pageout, &size, NULL, 0) < 0){ |
| 101 |
return NULL; |
| 102 |
} |
| 103 |
|
| 104 |
#endif |
| 105 |
|
| 106 |
return &page_stats; |
| 107 |
} |
| 108 |
|
| 109 |
page_stat_t *get_page_stats_diff(){ |
| 110 |
page_stat_t *page_ptr; |
| 111 |
static page_stat_t page_stats_diff; |
| 112 |
|
| 113 |
if(page_stats_uninit){ |
| 114 |
page_ptr=get_page_stats(); |
| 115 |
if(page_ptr==NULL){ |
| 116 |
return NULL; |
| 117 |
} |
| 118 |
page_stats_uninit=0; |
| 119 |
return page_ptr; |
| 120 |
} |
| 121 |
|
| 122 |
page_stats_diff.pages_pagein=page_stats.pages_pagein; |
| 123 |
page_stats_diff.pages_pageout=page_stats.pages_pageout; |
| 124 |
page_stats_diff.systime=page_stats.systime; |
| 125 |
|
| 126 |
page_ptr=get_page_stats(); |
| 127 |
if(page_ptr==NULL){ |
| 128 |
return NULL; |
| 129 |
} |
| 130 |
|
| 131 |
page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein; |
| 132 |
page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout; |
| 133 |
page_stats_diff.systime=page_stats.systime-page_stats_diff.systime; |
| 134 |
|
| 135 |
return &page_stats_diff; |
| 136 |
} |
