Panel

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/* $Id$ */

/* 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 <inttypes.h>

#include <stdlib.h>

#include <string.h>

#include <time.h>

#include <errno.h>

#if defined(__APPLE__)

# include <sys/param.h>

# include <sys/sysctl.h>

#elif defined(__FreeBSD__) || defined(__NetBSD__)

# include <sys/param.h>

# include <sys/sched.h>

# include <sys/sysctl.h>

#endif

#include <libintl.h>

#include <System.h>

#include "Panel/applet.h"

#define _(string) gettext(string)

#define N_(string) string

/* Cpufreq */

/* private */

/* types */

typedef struct _PanelApplet

{

PanelAppletHelper * helper;

GtkWidget * hbox;

GtkWidget * label;

guint timeout;

int64_t min;

int64_t max;

int64_t current;

int64_t step;

#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__)

char const * name;

#endif

} Cpufreq;

/* prototypes */

static Cpufreq * _cpufreq_init(PanelAppletHelper * helper, GtkWidget ** widget);

static void _cpufreq_destroy(Cpufreq * cpufreq);

/* callbacks */

#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__)

static gboolean _cpufreq_on_timeout(gpointer data);

#endif

/* public */

/* variables */

PanelAppletDefinition applet =

{

N_("CPU frequency"),

"gnome-monitor",

NULL,

_cpufreq_init,

_cpufreq_destroy,

NULL,

FALSE,

TRUE

};

/* private */

/* functions */

/* cpufreq_init */

static Cpufreq * _cpufreq_init(PanelAppletHelper * helper, GtkWidget ** widget)

{

const int timeout = 1000;

#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__)

Cpufreq * cpufreq;

PangoFontDescription * desc;

GtkWidget * image;

GtkWidget * label;

char const * p;

# if defined(__APPLE__)

int64_t i;

int64_t imin;

int64_t imax;

size_t isize = sizeof(i);

p = "hw.cpufrequency";

if(sysctlbyname(p, &i, &isize, NULL, 0) != 0

|| sysctlbyname("hw.cpufrequency_min", &imin, &isize,

NULL, 0) != 0

|| sysctlbyname("hw.cpufrequency_max", &imax, &isize,

NULL, 0) != 0)

{

error_set("%s: %s", applet.name, _("No support detected"));

return NULL;

}

# else

char freq[256];

size_t freqsize = sizeof(freq);

char const * q;

/* detect the correct sysctl */

if(sysctlbyname("hw.clockrate", &freq, &freqsize, NULL, 0) == 0)

p = "hw.clockrate";

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

&freqsize, NULL, 0) == 0)

p = "machdep.est.frequency.current";

else if(sysctlbyname("machdep.powernow.frequency.available", &freq,

&freqsize, NULL, 0) == 0)

p = "machdep.powernow.frequency.current";

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

NULL, 0) == 0)

p = "machdep.frequency.current";

else if(sysctlbyname("machdep.cpu.frequency.available", &freq,

&freqsize, NULL, 0) == 0)

p = "machdep.cpu.frequency.current";

else

{

error_set("%s: %s", applet.name, _("No support detected"));

return NULL;

}

# endif

# ifdef DEBUG

fprintf(stderr, "DEBUG: %s() \"%s\"\n", __func__, p);

# endif

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

{

error_set("%s: %s", applet.name, strerror(errno));

return NULL;

}

cpufreq->helper = helper;

desc = pango_font_description_new();

pango_font_description_set_family(desc, "Monospace");

pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);

# if GTK_CHECK_VERSION(3, 0, 0)

cpufreq->hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 4);

# else

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

# endif

image = gtk_image_new_from_icon_name(applet.icon,

panel_window_get_icon_size(helper->window));

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

# if defined(__APPLE__)

cpufreq->max = imax / 1000000;

cpufreq->min = imin / 1000000;

# else

cpufreq->max = atoll(freq);

cpufreq->min = (q = strrchr(freq, ' ')) != NULL ? atoll(q)

: cpufreq->max;

# endif

cpufreq->current = -1;

cpufreq->step = 1;

cpufreq->name = p;

cpufreq->label = gtk_label_new(" ");

# if GTK_CHECK_VERSION(3, 0, 0)

gtk_widget_override_font(cpufreq->label, desc);

# else

gtk_widget_modify_font(cpufreq->label, desc);

# endif

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

0);

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

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

if(_cpufreq_on_timeout(cpufreq) == TRUE)

cpufreq->timeout = g_timeout_add(timeout, _cpufreq_on_timeout,

cpufreq);

pango_font_description_free(desc);

gtk_widget_show_all(cpufreq->hbox);

*widget = cpufreq->hbox;

return cpufreq;

#else

error_set("%s: %s", applet.name, _("Unsupported platform"));

return NULL;

#endif

}

/* cpufreq_destroy */

static void _cpufreq_destroy(Cpufreq * cpufreq)

{

g_source_remove(cpufreq->timeout);

gtk_widget_destroy(cpufreq->hbox);

free(cpufreq);

}

/* callbacks */

#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__)

/* cpufreq_on_timeout */

static gboolean _cpufreq_on_timeout(gpointer data)

{

Cpufreq * cpufreq = data;

PanelAppletHelper * helper = cpufreq->helper;

char buf[256];

int64_t freq;

# if defined(__APPLE__)

size_t freqsize = sizeof(freqsize);

if(sysctlbyname(cpufreq->name, &freq, &freqsize, NULL, 0) == 0)

freq /= 1000000;

else

# else

int i;

size_t isize = sizeof(i);

if(sysctlbyname(cpufreq->name, &i, &isize, NULL, 0) == 0)

freq = i;

else

# endif

{

error_set("%s: %s: %s", applet.name, cpufreq->name,

strerror(errno));

helper->error(NULL, error_get(NULL), 1);

return TRUE;

}

if(freq < 0)

{

error_set("%s: %s: %s", applet.name, cpufreq->name,

strerror(ERANGE));

helper->error(NULL, error_get(NULL), 1);

return TRUE;

}

if(cpufreq->current == freq)

return TRUE;

# ifdef DEBUG

fprintf(stderr, "DEBUG: %s() %d\n", __func__, freq);

# endif

cpufreq->current = freq;

snprintf(buf, sizeof(buf), "%4" PRId64, cpufreq->current);

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

# if GTK_CHECK_VERSION(2, 12, 0)

snprintf(buf, sizeof(buf), "%s%" PRId64 " %s", _("CPU frequency: "),

cpufreq->current, _("MHz"));

gtk_widget_set_tooltip_text(cpufreq->hbox, buf);

# endif

return TRUE;

}

#endif