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