| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 3 |
* http://www.i-scream.org |
| 4 |
* Copyright (C) 2000-2004 i-scream |
| 5 |
* |
| 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 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 GNU |
| 14 |
* Lesser General Public License for more details. |
| 15 |
* |
| 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 |
* $Id$ |
| 22 |
*/ |
| 23 |
|
| 24 |
#ifdef HAVE_CONFIG_H |
| 25 |
#include "config.h" |
| 26 |
#endif |
| 27 |
|
| 28 |
#include "statgrab.h" |
| 29 |
#include "tools.h" |
| 30 |
#include <time.h> |
| 31 |
#ifdef SOLARIS |
| 32 |
#include <kstat.h> |
| 33 |
#include <sys/sysinfo.h> |
| 34 |
#include <string.h> |
| 35 |
#endif |
| 36 |
#if defined(LINUX) || defined(CYGWIN) |
| 37 |
#include <stdio.h> |
| 38 |
#include <string.h> |
| 39 |
#endif |
| 40 |
#ifdef FREEBSD |
| 41 |
#include <sys/types.h> |
| 42 |
#include <sys/sysctl.h> |
| 43 |
#endif |
| 44 |
|
| 45 |
static page_stat_t page_stats; |
| 46 |
static int page_stats_uninit=1; |
| 47 |
|
| 48 |
page_stat_t *get_page_stats(){ |
| 49 |
#ifdef SOLARIS |
| 50 |
kstat_ctl_t *kc; |
| 51 |
kstat_t *ksp; |
| 52 |
cpu_stat_t cs; |
| 53 |
#endif |
| 54 |
#if defined(LINUX) || defined(CYGWIN) |
| 55 |
FILE *f; |
| 56 |
char *line_ptr; |
| 57 |
#endif |
| 58 |
#ifdef FREEBSD |
| 59 |
size_t size; |
| 60 |
#endif |
| 61 |
#ifdef NETBSD |
| 62 |
struct uvmexp *uvm; |
| 63 |
#endif |
| 64 |
|
| 65 |
page_stats.systime = time(NULL); |
| 66 |
page_stats.pages_pagein=0; |
| 67 |
page_stats.pages_pageout=0; |
| 68 |
|
| 69 |
#ifdef SOLARIS |
| 70 |
if ((kc = kstat_open()) == NULL) { |
| 71 |
return NULL; |
| 72 |
} |
| 73 |
for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) { |
| 74 |
if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue; |
| 75 |
if (kstat_read(kc, ksp, &cs) == -1) { |
| 76 |
continue; |
| 77 |
} |
| 78 |
|
| 79 |
page_stats.pages_pagein+=(long long)cs.cpu_vminfo.pgpgin; |
| 80 |
page_stats.pages_pageout+=(long long)cs.cpu_vminfo.pgpgout; |
| 81 |
} |
| 82 |
|
| 83 |
kstat_close(kc); |
| 84 |
#endif |
| 85 |
#if defined(LINUX) || defined(CYGWIN) |
| 86 |
if ((f = fopen("/proc/vmstat", "r")) != NULL) { |
| 87 |
while ((line_ptr = f_read_line(f, "")) != NULL) { |
| 88 |
long long value; |
| 89 |
|
| 90 |
if (sscanf(line_ptr, "%*s %lld", &value) != 1) { |
| 91 |
continue; |
| 92 |
} |
| 93 |
|
| 94 |
if (strncmp(line_ptr, "pgpgin ", 7) == 0) { |
| 95 |
page_stats.pages_pagein = value; |
| 96 |
} else if (strncmp(line_ptr, "pgpgout ", 8) == 0) { |
| 97 |
page_stats.pages_pageout = value; |
| 98 |
} |
| 99 |
} |
| 100 |
|
| 101 |
fclose(f); |
| 102 |
} else if ((f = fopen("/proc/stat", "r")) != NULL) { |
| 103 |
if ((line_ptr = f_read_line(f, "page")) == NULL) { |
| 104 |
fclose(f); |
| 105 |
return NULL; |
| 106 |
} |
| 107 |
|
| 108 |
if (sscanf(line_ptr, "page %lld %lld", &page_stats.pages_pagein, &page_stats.pages_pageout) != 2) { |
| 109 |
fclose(f); |
| 110 |
return NULL; |
| 111 |
} |
| 112 |
|
| 113 |
fclose(f); |
| 114 |
} else { |
| 115 |
return NULL; |
| 116 |
} |
| 117 |
#endif |
| 118 |
#ifdef FREEBSD |
| 119 |
size = sizeof page_stats.pages_pagein; |
| 120 |
if (sysctlbyname("vm.stats.vm.v_swappgsin", &page_stats.pages_pagein, &size, NULL, 0) < 0){ |
| 121 |
return NULL; |
| 122 |
} |
| 123 |
size = sizeof page_stats.pages_pageout; |
| 124 |
if (sysctlbyname("vm.stats.vm.v_swappgsout", &page_stats.pages_pageout, &size, NULL, 0) < 0){ |
| 125 |
return NULL; |
| 126 |
} |
| 127 |
#endif |
| 128 |
#ifdef NETBSD |
| 129 |
if ((uvm = get_uvmexp()) == NULL) { |
| 130 |
return NULL; |
| 131 |
} |
| 132 |
page_stats.pages_pagein = uvm->pgswapin; |
| 133 |
page_stats.pages_pageout = uvm->pgswapout; |
| 134 |
#endif |
| 135 |
|
| 136 |
return &page_stats; |
| 137 |
} |
| 138 |
|
| 139 |
page_stat_t *get_page_stats_diff(){ |
| 140 |
page_stat_t *page_ptr; |
| 141 |
static page_stat_t page_stats_diff; |
| 142 |
|
| 143 |
if(page_stats_uninit){ |
| 144 |
page_ptr=get_page_stats(); |
| 145 |
if(page_ptr==NULL){ |
| 146 |
return NULL; |
| 147 |
} |
| 148 |
page_stats_uninit=0; |
| 149 |
return page_ptr; |
| 150 |
} |
| 151 |
|
| 152 |
page_stats_diff.pages_pagein=page_stats.pages_pagein; |
| 153 |
page_stats_diff.pages_pageout=page_stats.pages_pageout; |
| 154 |
page_stats_diff.systime=page_stats.systime; |
| 155 |
|
| 156 |
page_ptr=get_page_stats(); |
| 157 |
if(page_ptr==NULL){ |
| 158 |
return NULL; |
| 159 |
} |
| 160 |
|
| 161 |
page_stats_diff.pages_pagein=page_stats.pages_pagein-page_stats_diff.pages_pagein; |
| 162 |
page_stats_diff.pages_pageout=page_stats.pages_pageout-page_stats_diff.pages_pageout; |
| 163 |
page_stats_diff.systime=page_stats.systime-page_stats_diff.systime; |
| 164 |
|
| 165 |
return &page_stats_diff; |
| 166 |
} |
