/* $Id: cpu.c,v 1.11 2003/10/19 16:55:46 carlos Exp $ *//* Copyright (C) 1998-99 Martin Baulig   This file is part of LibGTop 1.0.   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.   LibGTop is free software; you can redistribute it and/or modify it   under the terms of the GNU General Public License as published by   the Free Software Foundation; either version 2 of the License,   or (at your option) any later version.   LibGTop is distributed in the hope that it will be useful, but WITHOUT   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   for more details.   You should have received a copy of the GNU General Public License   along with LibGTop; see the file COPYING. If not, write to the   Free Software Foundation, Inc., 59 Temple Place - Suite 330,   Boston, MA 02111-1307, USA.*/#include <glibtop.h>#include <glibtop/error.h>#include <glibtop/cpu.h>#include <assert.h>#include <sys/processor.h>#include <glibtop_private.h>static const unsigned long _glibtop_sysdeps_cpu =(1L << GLIBTOP_CPU_TOTAL) + (1L << GLIBTOP_CPU_USER) +(1L << GLIBTOP_CPU_SYS) + (1L << GLIBTOP_CPU_IDLE) +(1L << GLIBTOP_XCPU_TOTAL) + (1L << GLIBTOP_XCPU_USER) +(1L << GLIBTOP_XCPU_SYS) + (1L << GLIBTOP_XCPU_IDLE) +#if LIBGTOP_VERSION_CODE >= 1001002(1L << GLIBTOP_XCPU_FLAGS) +#endif(1L << GLIBTOP_CPU_FREQUENCY);/* Init function. */voidglibtop_init_cpu_s (glibtop *server){    server->sysdeps.cpu = _glibtop_sysdeps_cpu;}/* Provides information about cpu usage. */voidglibtop_get_cpu_s (glibtop *server, glibtop_cpu *buf){    kstat_ctl_t *kc = server->machine.kc;    cpu_stat_t cpu_stat;    processorid_t cpu;    int ncpu, found;    kid_t ret;    memset (buf, 0, sizeof (glibtop_cpu));    if(!kc)        return;    switch(kstat_chain_update(kc))    {        case -1: assert(0); /* Debugging purposes, shouldn't happen */	case 0:  break;	default: glibtop_get_kstats(server);    }    ncpu = server->ncpu;    if (ncpu > GLIBTOP_NCPU)        ncpu = GLIBTOP_NCPU;    for (cpu = 0, found = 0; cpu < GLIBTOP_NCPU && found != ncpu; cpu++)    {	kstat_t *ksp = server->machine.cpu_stat_kstat [cpu];	if (!ksp) continue;	++found;	if(p_online(cpu, P_STATUS) == P_ONLINE)#if LIBGTOP_VERSION_CODE >= 1001002	    buf->xcpu_flags |= (1L << cpu);#else	    ;#endif	else	    continue;	ret = kstat_read (kc, ksp, &cpu_stat);	if (ret == -1) {	    glibtop_warn_io_r (server, "kstat_read (cpu_stat%d)", cpu);	    continue;	}	buf->xcpu_idle [cpu] = cpu_stat.cpu_sysinfo.cpu [CPU_IDLE];	buf->xcpu_user [cpu] = cpu_stat.cpu_sysinfo.cpu [CPU_USER];	buf->xcpu_sys [cpu] = cpu_stat.cpu_sysinfo.cpu [CPU_KERNEL];	buf->xcpu_total [cpu] = buf->xcpu_idle [cpu] + buf->xcpu_user [cpu] +	    buf->xcpu_sys [cpu];	buf->idle += cpu_stat.cpu_sysinfo.cpu [CPU_IDLE];	buf->user += cpu_stat.cpu_sysinfo.cpu [CPU_USER];	buf->sys  += cpu_stat.cpu_sysinfo.cpu [CPU_KERNEL];    }    buf->total = buf->idle + buf->user + buf->sys;    buf->frequency = server->machine.ticks;    buf->flags = _glibtop_sysdeps_cpu;}