aa9fafe5c3
2007-04-11 Benoît Dejean <benoit@placenet.org> * *: Renamed all glibtop_init_xxx functions to _glibtop_init_xxx so they get internal visibility. * configure.in: Bumped version number. svn path=/trunk/; revision=2569
112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/cpu.h>
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#include <assert.h>
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#include <sys/processor.h>
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#include <glibtop_private.h>
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static const unsigned long _glibtop_sysdeps_cpu_freq =
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(1L << GLIBTOP_CPU_FREQUENCY);
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static const unsigned long _glibtop_sysdeps_cpu_all =
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(1L << GLIBTOP_CPU_TOTAL) + (1L << GLIBTOP_CPU_USER) +
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(1L << GLIBTOP_CPU_SYS) + (1L << GLIBTOP_CPU_IDLE) +
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(1L << GLIBTOP_XCPU_TOTAL) + (1L << GLIBTOP_XCPU_USER) +
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(1L << GLIBTOP_XCPU_SYS) + (1L << GLIBTOP_XCPU_IDLE) +
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(1L << GLIBTOP_XCPU_FLAGS) +
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(1L << GLIBTOP_CPU_FREQUENCY);
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/* Init function. */
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void
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_glibtop_init_cpu_s (glibtop *server)
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{
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server->sysdeps.cpu = _glibtop_sysdeps_cpu_all;
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}
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/* Provides information about cpu usage. */
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void
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glibtop_get_cpu_s (glibtop *server, glibtop_cpu *buf)
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{
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kstat_ctl_t * const kc = server->machine.kc;
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cpu_stat_t cpu_stat;
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processorid_t cpu;
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int ncpu, found;
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memset (buf, 0, sizeof (glibtop_cpu));
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buf->frequency = server->machine.ticks;
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buf->flags = _glibtop_sysdeps_cpu_freq;
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if(!kc)
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return;
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switch(kstat_chain_update(kc))
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{
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case -1: assert(0); /* Debugging purposes, shouldn't happen */
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case 0: break;
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default: glibtop_get_kstats(server);
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}
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ncpu = MIN(GLIBTOP_NCPU, server->ncpu);
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for (cpu = 0, found = 0; cpu < GLIBTOP_NCPU && found != ncpu; cpu++)
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{
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kstat_t * const ksp = server->machine.cpu_stat_kstat [cpu];
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if (!ksp) continue;;
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++found;
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if(p_online(cpu, P_STATUS) == P_ONLINE)
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buf->xcpu_flags |= (1L << cpu);
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else
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continue;
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if (kstat_read (kc, ksp, &cpu_stat) == -1) {
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glibtop_warn_io_r (server, "kstat_read (cpu_stat%d)", cpu);
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continue;
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}
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buf->xcpu_idle [cpu] = cpu_stat.cpu_sysinfo.cpu [CPU_IDLE];
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buf->xcpu_user [cpu] = cpu_stat.cpu_sysinfo.cpu [CPU_USER];
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buf->xcpu_sys [cpu] = cpu_stat.cpu_sysinfo.cpu [CPU_KERNEL];
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buf->xcpu_total [cpu] = buf->xcpu_idle [cpu] + buf->xcpu_user [cpu] +
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buf->xcpu_sys [cpu];
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buf->idle += cpu_stat.cpu_sysinfo.cpu [CPU_IDLE];
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buf->user += cpu_stat.cpu_sysinfo.cpu [CPU_USER];
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buf->sys += cpu_stat.cpu_sysinfo.cpu [CPU_KERNEL];
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}
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if(!found)
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return;
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buf->total = buf->idle + buf->user + buf->sys;
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buf->flags = _glibtop_sysdeps_cpu_all;
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}
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