| 1 |
/* |
| 2 |
* i-scream libstatgrab |
| 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: load_stats.c,v 1.19 2006/10/09 14:09:38 tdb Exp $ |
| 22 |
*/ |
| 23 |
|
| 24 |
#ifdef HAVE_CONFIG_H |
| 25 |
#include "config.h" |
| 26 |
#endif |
| 27 |
|
| 28 |
#include <stdio.h> |
| 29 |
#include <stdlib.h> |
| 30 |
#include "statgrab.h" |
| 31 |
#ifdef SOLARIS |
| 32 |
#ifdef HAVE_SYS_LOADAVG_H |
| 33 |
#include <sys/loadavg.h> |
| 34 |
#else |
| 35 |
#include <kstat.h> |
| 36 |
#endif |
| 37 |
#endif |
| 38 |
#ifdef HPUX |
| 39 |
#include <sys/param.h> |
| 40 |
#include <sys/pstat.h> |
| 41 |
#endif |
| 42 |
#ifdef AIX |
| 43 |
#include <strings.h> |
| 44 |
#include <sys/proc.h> |
| 45 |
#include <libperfstat.h> |
| 46 |
#endif |
| 47 |
|
| 48 |
sg_load_stats *sg_get_load_stats(){ |
| 49 |
|
| 50 |
#if !defined(CYGWIN) && !defined(WIN32) |
| 51 |
static sg_load_stats load_stat; |
| 52 |
|
| 53 |
#ifdef HPUX |
| 54 |
struct pst_dynamic pstat_dynamic; |
| 55 |
#elif defined(AIX) |
| 56 |
perfstat_cpu_total_t all_cpu_info; |
| 57 |
int rc; |
| 58 |
#else |
| 59 |
double loadav[3]; |
| 60 |
#endif |
| 61 |
#endif /* not CYGWIN or WIN32 */ |
| 62 |
|
| 63 |
#ifdef CYGWIN |
| 64 |
sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin"); |
| 65 |
return NULL; |
| 66 |
#elif defined(WIN32) |
| 67 |
sg_set_error(SG_ERROR_UNSUPPORTED, "Win32"); |
| 68 |
return NULL; |
| 69 |
#else |
| 70 |
|
| 71 |
#if defined(SOLARIS) && !defined(HAVE_SYS_LOADAVG_H) |
| 72 |
|
| 73 |
kstat_ctl_t *kc; |
| 74 |
kstat_t *ksp; |
| 75 |
kstat_named_t *kn; |
| 76 |
|
| 77 |
if ((kc = kstat_open()) == NULL) { |
| 78 |
sg_set_error(SG_ERROR_KSTAT_OPEN, NULL); |
| 79 |
return NULL; |
| 80 |
} |
| 81 |
|
| 82 |
if((ksp=kstat_lookup(kc, "unix", 0, "system_misc")) == NULL){ |
| 83 |
sg_set_error(SG_ERROR_KSTAT_LOOKUP, "unix,0,system_misc"); |
| 84 |
kstat_close(kc); |
| 85 |
return NULL; |
| 86 |
} |
| 87 |
|
| 88 |
if (kstat_read(kc, ksp, 0) == -1) { |
| 89 |
sg_set_error(SG_ERROR_KSTAT_READ, NULL); |
| 90 |
kstat_close(kc); |
| 91 |
return NULL; |
| 92 |
} |
| 93 |
|
| 94 |
kstat_close(kc); |
| 95 |
|
| 96 |
if((kn=kstat_data_lookup(ksp, "avenrun_1min")) == NULL){ |
| 97 |
sg_set_error(SG_ERROR_KSTAT_DATA_LOOKUP, "avenrun_1min"); |
| 98 |
return NULL; |
| 99 |
} |
| 100 |
load_stat.min1 = (double)kn->value.ui32 / (double)256; |
| 101 |
|
| 102 |
if((kn=kstat_data_lookup(ksp, "avenrun_5min")) == NULL){ |
| 103 |
sg_set_error(SG_ERROR_KSTAT_DATA_LOOKUP, "avenrun_5min"); |
| 104 |
return NULL; |
| 105 |
} |
| 106 |
load_stat.min5 = (double)kn->value.ui32 / (double)256; |
| 107 |
|
| 108 |
if((kn=kstat_data_lookup(ksp, "avenrun_15min")) == NULL){ |
| 109 |
sg_set_error(SG_ERROR_KSTAT_DATA_LOOKUP, "avenrun_15min"); |
| 110 |
return NULL; |
| 111 |
} |
| 112 |
load_stat.min15 = (double)kn->value.ui32 / (double)256; |
| 113 |
#elif defined(HPUX) |
| 114 |
if (pstat_getdynamic(&pstat_dynamic, sizeof(pstat_dynamic), 1, 0) == -1) { |
| 115 |
sg_set_error_with_errno(SG_ERROR_PSTAT, "pstat_dynamic"); |
| 116 |
return NULL; |
| 117 |
} |
| 118 |
|
| 119 |
load_stat.min1=pstat_dynamic.psd_avg_1_min; |
| 120 |
load_stat.min5=pstat_dynamic.psd_avg_5_min; |
| 121 |
load_stat.min15=pstat_dynamic.psd_avg_15_min; |
| 122 |
#elif defined(AIX) |
| 123 |
rc = perfstat_cpu_total( NULL, &all_cpu_info, sizeof(all_cpu_info), 1); |
| 124 |
if( -1 == rc ) { |
| 125 |
bzero(&load_stat, sizeof(load_stat)); |
| 126 |
sg_set_error_with_errno(SG_ERROR_PSTAT, "perfstat_cpu_total"); |
| 127 |
return NULL; |
| 128 |
} else { |
| 129 |
load_stat.min1 = (double) all_cpu_info.loadavg[0] / (double)(1 << SBITS); |
| 130 |
load_stat.min5 = (double) all_cpu_info.loadavg[1] / (double)(1 << SBITS); |
| 131 |
load_stat.min15 = (double) all_cpu_info.loadavg[2] / (double)(1 << SBITS); |
| 132 |
} |
| 133 |
#else |
| 134 |
getloadavg(loadav,3); |
| 135 |
|
| 136 |
load_stat.min1=loadav[0]; |
| 137 |
load_stat.min5=loadav[1]; |
| 138 |
load_stat.min15=loadav[2]; |
| 139 |
#endif |
| 140 |
|
| 141 |
return &load_stat; |
| 142 |
#endif |
| 143 |
} |
