Blame sysdeps/darwin/sysinfo.c

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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 <sys/param.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <glibtop/error.h>
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#include <glibtop/cpu.h>
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#include <glibtop/sysinfo.h>
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static const unsigned long _glibtop_sysdeps_sysinfo =
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(1L << GLIBTOP_SYSINFO_CPUINFO);
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static glibtop_sysinfo sysinfo = { .flags = 0 };
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static void
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init_sysinfo (glibtop *server)
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{
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	char *model;
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	guint64 ncpus = 1;
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	int mhz = 0;
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	size_t len;
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	if (G_LIKELY (sysinfo.flags))
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		return;
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	glibtop_init_s (&server, GLIBTOP_SYSDEPS_CPU, 0);
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	len = sizeof (ncpus);
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	sysctlbyname ("hw.ncpu", &ncpus, &len, NULL, 0);
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	len = 0;
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	sysctlbyname ("hw.model", NULL, &len, NULL, 0);
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	model = g_malloc (len);
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	sysctlbyname ("hw.model", model, &len, NULL, 0);
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	len = sizeof (mhz);
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	sysctlbyname ("hw.cpufrequency", &mhz, &len, NULL, 0);
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	mhz = mhz / 1000000;
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	for (sysinfo.ncpu = 0;
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	     sysinfo.ncpu < GLIBTOP_NCPU && sysinfo.ncpu < ncpus;
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	     sysinfo.ncpu++) {
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		glibtop_entry * const cpuinfo = &sysinfo.cpuinfo[sysinfo.ncpu];
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		cpuinfo->labels = g_ptr_array_new ();
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		cpuinfo->values = g_hash_table_new_full(g_str_hash,
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							g_str_equal,
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							NULL, g_free);
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		g_ptr_array_add (cpuinfo->labels, "processor");
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		g_hash_table_insert (cpuinfo->values, "processor",
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				     g_strdup_printf("%u", (guint)sysinfo.ncpu));
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		g_ptr_array_add (cpuinfo->labels, "vendor_id");
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		g_hash_table_insert (cpuinfo->values, "vendor_id",
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				     g_strdup(model));
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		g_ptr_array_add (cpuinfo->labels, "cpu MHz");
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		g_hash_table_insert (cpuinfo->values, "cpu MHz",
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				     g_strdup_printf("%d", mhz));
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	}
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	g_free (model);
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	sysinfo.flags = _glibtop_sysdeps_sysinfo;
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}
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const glibtop_sysinfo *
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glibtop_get_sysinfo_s (glibtop *server)
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{
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	init_sysinfo (server);
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	return &sysinfo;
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}