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/* $Id: cpufreq.c,v 1.11 2011/08/22 23:35:01 khorben Exp $ */

/* This file is part of DeforaOS Desktop Panel */

/* This program 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, version 3 of the License.

* This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */

#include <sys/time.h>

#include <stdlib.h>

#include <string.h>

#include <time.h>

#include <errno.h>

#ifdef __NetBSD__

# include <sys/param.h>

# include <sys/sched.h>

# include <sys/sysctl.h>

#endif

#include <libintl.h>

#include <System.h>

#include "Panel.h"

#define _(string) gettext(string)

/* Cpufreq */

/* private */

/* types */

typedef struct _Cpufreq

{

PanelAppletHelper * helper;

GtkWidget * hbox;

GtkWidget * label;

guint timeout;

int min;

int max;

int step;

} Cpufreq;

/* prototypes */

static GtkWidget * _cpufreq_init(PanelApplet * applet);

static void _cpufreq_destroy(PanelApplet * applet);

/* callbacks */

#ifdef __NetBSD__

static gboolean _on_timeout(gpointer data);

#endif

/* public */

/* variables */

PanelApplet applet =

{

NULL,

"CPU frequency",

NULL,

_cpufreq_init,

_cpufreq_destroy,

NULL,

FALSE,

TRUE,

NULL

};

/* private */

/* functions */

/* cpufreq_init */

static GtkWidget * _cpufreq_init(PanelApplet * applet)

{

#ifdef __NetBSD__

Cpufreq * cpufreq;

PangoFontDescription * desc;

GtkWidget * widget;

char freq[256];

size_t freqsize = sizeof(freq);

char const * p;

if(sysctlbyname("machdep.est.frequency.available", &freq, &freqsize,

NULL, 0) != 0

&& sysctlbyname("machdep.powernow.frequency.available",

&freq, &freqsize, NULL, 0) != 0)

{

error_set("%s: %s", "cpufreq", strerror(errno));

return NULL;

}

if((cpufreq = malloc(sizeof(*cpufreq))) == NULL)

{

applet->helper->error(applet->helper->panel, "malloc", 0);

return NULL;

}

applet->priv = cpufreq;

cpufreq->helper = applet->helper;

desc = pango_font_description_new();

pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);

cpufreq->hbox = gtk_hbox_new(FALSE, 4);

widget = gtk_image_new_from_icon_name("gnome-monitor",

applet->helper->icon_size);

gtk_box_pack_start(GTK_BOX(cpufreq->hbox), widget, FALSE, TRUE, 0);

cpufreq->min = 0;

cpufreq->max = 0;

cpufreq->step = 1;

cpufreq->max = atoi(freq);

cpufreq->min = (p = strrchr(freq, ' ')) != NULL ? atoi(p)

: cpufreq->max;

cpufreq->label = gtk_label_new(" ");

gtk_widget_modify_font(cpufreq->label, desc);

gtk_box_pack_start(GTK_BOX(cpufreq->hbox), cpufreq->label, FALSE, TRUE,

0);

widget = gtk_label_new(_("MHz"));

gtk_box_pack_start(GTK_BOX(cpufreq->hbox), widget, FALSE, TRUE, 0);

cpufreq->timeout = g_timeout_add(1000, _on_timeout, cpufreq);

_on_timeout(cpufreq);

pango_font_description_free(desc);

gtk_widget_show_all(cpufreq->hbox);

return cpufreq->hbox;

#else

error_set("%s: %s", "cpufreq", _("Unsupported platform"));

return NULL;

#endif

}

/* cpufreq_destroy */

static void _cpufreq_destroy(PanelApplet * applet)

{

Cpufreq * cpufreq = applet->priv;

g_source_remove(cpufreq->timeout);

free(cpufreq);

}

/* callbacks */

#ifdef __NetBSD__

/* on_timeout */

static gboolean _on_timeout(gpointer data)

{

Cpufreq * cpufreq = data;

const char name[] = "machdep.est.frequency.current";

uint64_t freq;

size_t freqsize = sizeof(freq);

char buf[256];

if(sysctlbyname(name, &freq, &freqsize, NULL, 0) < 0

|| sysctlbyname(name, &freq, &freqsize, NULL, 0) < 0)

return cpufreq->helper->error(NULL, name, TRUE);

snprintf(buf, sizeof(buf), "%u", (unsigned int)freq);

gtk_label_set_text(GTK_LABEL(cpufreq->label), buf);

#if GTK_CHECK_VERSION(2, 12, 0)

snprintf(buf, sizeof(buf), "%s%u%s", "CPU frequency: ",

(unsigned int)freq, " MHz");

gtk_widget_set_tooltip_text(cpufreq->hbox, buf);

#endif

return TRUE;

}

#endif