Desktop
/* $Id: memory.c,v 1.9 2010/03/14 21:46:21 khorben Exp $ */
/* Copyright (c) 2010 Pierre Pronchery <khorben@defora.org> */
/* 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 <errno.h>
#ifdef __NetBSD__
# include <sys/sysctl.h>
#endif
#include "Panel.h"
/* Memory */
/* private */
/* types */
typedef struct _Memory
{
GtkWidget * scale;
guint timeout;
} Memory;
/* prototypes */
static GtkWidget * _memory_init(PanelApplet * applet);
static void _memory_destroy(PanelApplet * applet);
/* callbacks */
#ifdef __NetBSD__
static gboolean _on_timeout(gpointer data);
#endif
/* public */
/* variables */
PanelApplet applet =
{
NULL,
_memory_init,
_memory_destroy,
PANEL_APPLET_POSITION_END,
FALSE,
TRUE,
NULL
};
/* private */
/* functions */
/* memory_init */
static GtkWidget * _memory_init(PanelApplet * applet)
{
#ifdef __NetBSD__
GtkWidget * ret;
Memory * memory;
PangoFontDescription * desc;
GtkWidget * widget;
if((memory = malloc(sizeof(*memory))) == NULL)
{
applet->helper->error(applet->helper->priv, "malloc", 0);
return NULL;
}
applet->priv = memory;
ret = gtk_hbox_new(FALSE, 0);
desc = pango_font_description_new();
pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
widget = gtk_label_new("RAM:");
gtk_widget_modify_font(widget, desc);
gtk_box_pack_start(GTK_BOX(ret), widget, FALSE, FALSE, 0);
memory->scale = gtk_vscale_new_with_range(0, 100, 1);
gtk_widget_set_sensitive(memory->scale, FALSE);
gtk_range_set_inverted(GTK_RANGE(memory->scale), TRUE);
gtk_scale_set_value_pos(GTK_SCALE(memory->scale), GTK_POS_RIGHT);
gtk_box_pack_start(GTK_BOX(ret), memory->scale, FALSE, FALSE, 0);
memory->timeout = g_timeout_add(5000, _on_timeout, memory);
_on_timeout(memory);
pango_font_description_free(desc);
gtk_widget_show_all(ret);
return ret;
#else
error_set("%s", "memory: Unsupported platform");
return NULL;
#endif
}
/* memory_destroy */
static void _memory_destroy(PanelApplet * applet)
{
Memory * memory = applet->priv;
g_source_remove(memory->timeout);
free(memory);
}
/* callbacks */
/* on_timeout */
#ifdef __NetBSD__
static gboolean _on_timeout(gpointer data)
{
Memory * memory = data;
int mib[] = { CTL_VM, VM_METER };
struct vmtotal vm;
size_t size = sizeof(vm);
gdouble value;
if(sysctl(mib, 2, &vm, &size, NULL, 0) < 0)
return TRUE;
value = vm.t_arm * 100;
value /= (vm.t_rm + vm.t_free);
gtk_range_set_value(GTK_RANGE(memory->scale), value);
return TRUE;
}
#endif