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/* |
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* i-scream central monitoring system |
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* http://www.i-scream.org.uk |
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* Copyright (C) 2000-2002 i-scream |
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* http://www.i-scream.org |
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* Copyright (C) 2000-2003 i-scream |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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#include <sys/sysinfo.h> |
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#include <string.h> |
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#endif |
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#if defined(LINUX) || defined(CYGWIN) |
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#include <stdio.h> |
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#endif |
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#ifdef FREEBSD |
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#include <sys/sysctl.h> |
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#include <sys/dkstat.h> |
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#endif |
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#ifdef NETBSD |
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#include <sys/types.h> |
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#include <sys/param.h> |
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#include <sys/sysctl.h> |
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#include <sys/sched.h> |
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#endif |
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|
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static cpu_states_t cpu_now; |
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static int cpu_now_uninit=1; |
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#ifdef SOLARIS |
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kstat_ctl_t *kc; |
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kstat_t *ksp; |
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cpu_stat_t cs; |
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cpu_stat_t cs; |
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#endif |
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#ifdef LINUX |
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FILE *f; |
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#endif |
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#ifdef ALLBSD |
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#ifndef FREEBSD |
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int mib[2]; |
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#endif |
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#ifdef NETBSD |
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u_int64_t cp_time[CPUSTATES]; |
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#else |
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long cp_time[CPUSTATES]; |
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#endif |
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size_t size; |
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#endif |
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|
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cpu_now.user=0; |
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/* Not stored in linux or freebsd */ |
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cpu_now.iowait=0; |
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cpu_now.kernel=0; |
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cpu_now.idle=0; |
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/* Not stored in linux or freebsd */ |
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cpu_now.swap=0; |
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cpu_now.total=0; |
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/* Not stored in solaris */ |
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cpu_now.nice=0; |
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|
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#ifdef SOLARIS |
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if ((kc = kstat_open()) == NULL) { |
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return NULL; |
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} |
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} |
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cpu_now.total=cpu_now.user+cpu_now.iowait+cpu_now.kernel+cpu_now.idle+cpu_now.swap; |
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cpu_now_uninit=0; |
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kstat_close(kc); |
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#endif |
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#if defined(LINUX) || defined(CYGWIN) |
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if ((f=fopen("/proc/stat", "r" ))==NULL) { |
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return NULL; |
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} |
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/* The very first line should be cpu */ |
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if((fscanf(f, "cpu %lld %lld %lld %lld", \ |
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&cpu_now.user, \ |
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&cpu_now.nice, \ |
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&cpu_now.kernel, \ |
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&cpu_now.idle)) != 4){ |
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fclose(f); |
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return NULL; |
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} |
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|
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fclose(f); |
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|
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cpu_now.total=cpu_now.user+cpu_now.nice+cpu_now.kernel+cpu_now.idle; |
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#endif |
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#ifdef ALLBSD |
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#ifdef FREEBSD |
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size = sizeof cp_time; |
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if (sysctlbyname("kern.cp_time", &cp_time, &size, NULL, 0) < 0){ |
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return NULL; |
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} |
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#else |
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mib[0] = CTL_KERN; |
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mib[1] = KERN_CP_TIME; |
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size = sizeof cp_time; |
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if (sysctl(mib, 2, &cp_time, &size, NULL, 0) < 0) { |
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return NULL; |
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} |
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#endif |
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|
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cpu_now.user=cp_time[CP_USER]; |
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cpu_now.nice=cp_time[CP_NICE]; |
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cpu_now.kernel=cp_time[CP_SYS]; |
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cpu_now.idle=cp_time[CP_IDLE]; |
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|
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cpu_now.total=cpu_now.user+cpu_now.nice+cpu_now.kernel+cpu_now.idle; |
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|
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#endif |
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|
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cpu_now.systime=time(NULL); |
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cpu_now_uninit=0; |
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|
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return &cpu_now; |
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} |
