/*
This file is part of LibGTop 2.0.
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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <unistd.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/cpu.h>
#include <glibtop_suid.h>
#include <mach/mach_init.h>
#include <mach/mach_host.h>
#include <mach/vm_map.h>
static const unsigned long _glibtop_sysdeps_cpu =
(1L << GLIBTOP_CPU_TOTAL) + (1L << GLIBTOP_CPU_USER) +
(1L << GLIBTOP_CPU_NICE) + (1L << GLIBTOP_CPU_SYS) +
(1L << GLIBTOP_CPU_IDLE) + (1L << GLIBTOP_CPU_FREQUENCY) +
(1L << GLIBTOP_XCPU_TOTAL) + (1L << GLIBTOP_XCPU_USER) +
(1L << GLIBTOP_XCPU_NICE) + (1L << GLIBTOP_XCPU_SYS) +
(1L << GLIBTOP_XCPU_IDLE);
/* Init function. */
void
_glibtop_init_cpu_p (glibtop *server)
{
server->sysdeps.cpu = _glibtop_sysdeps_cpu;
}
/* Provides information about cpu usage. */
void
glibtop_get_cpu_p (glibtop *server, glibtop_cpu *buf)
{
processor_cpu_load_info_data_t *pinfo;
mach_msg_type_number_t info_count;
natural_t processor_count;
int i;
glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_CPU), 0);
memset (buf, 0, sizeof (glibtop_cpu));
if (host_processor_info (mach_host_self (),
PROCESSOR_CPU_LOAD_INFO,
&processor_count,
(processor_info_array_t*)&pinfo,
&info_count)) {
glibtop_warn_io_r (server, "host_processor_info (cpu)");
return;
}
for (i = 0; i < server->ncpu; i++) {
buf->xcpu_user [i] = pinfo[i].cpu_ticks [CPU_STATE_USER];
buf->xcpu_sys [i] = pinfo[i].cpu_ticks [CPU_STATE_SYSTEM];
buf->xcpu_idle [i] = pinfo[i].cpu_ticks [CPU_STATE_IDLE];
buf->xcpu_nice [i] = pinfo[i].cpu_ticks [CPU_STATE_NICE];
buf->xcpu_total[i] = buf->xcpu_user [i] + buf->xcpu_sys [i] +
buf->xcpu_idle [i] + buf->xcpu_nice [i];
buf->user += buf->xcpu_user [i];
buf->sys += buf->xcpu_sys [i];
buf->idle += buf->xcpu_idle [i];
buf->nice += buf->xcpu_nice [i];
buf->total += buf->xcpu_total[i];
}
vm_deallocate (mach_task_self (), (vm_address_t) pinfo, info_count);
buf->frequency = 100;
buf->flags = _glibtop_sysdeps_cpu;
}