Desktop
/* $Id: memory.c,v 1.17 2012/09/05 21:19:02 khorben Exp $ */
/* Copyright (c) 2010-2012 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>
#if defined(__linux__)
# include <sys/sysinfo.h>
#elif defined(__FreeBSD__) || defined(__NetBSD__)
# include <sys/sysctl.h>
# if defined(__FreeBSD__)
# include <sys/vmmeter.h>
# include <vm/vm_param.h>
# endif
#endif
#include <libintl.h>
#include "Panel.h"
#define _(string) gettext(string)
/* Memory */
/* private */
/* types */
typedef struct _PanelApplet
{
PanelAppletHelper * helper;
GtkWidget * scale;
guint timeout;
} Memory;
/* prototypes */
static Memory * _memory_init(PanelAppletHelper * helper, GtkWidget ** widget);
static void _memory_destroy(Memory * memory);
/* callbacks */
#if defined(__FreeBSD__) || defined(__linux__) || defined(__NetBSD__)
static gboolean _on_timeout(gpointer data);
#endif
/* public */
/* variables */
PanelAppletDefinition applet =
{
"Memory",
"gnome-monitor",
NULL,
_memory_init,
_memory_destroy,
NULL,
FALSE,
TRUE
};
/* private */
/* functions */
/* memory_init */
static Memory * _memory_init(PanelAppletHelper * helper, GtkWidget ** widget)
{
#if defined(__FreeBSD__) || defined(__linux__) || defined(__NetBSD__)
Memory * memory;
GtkWidget * ret;
PangoFontDescription * desc;
GtkWidget * label;
if((memory = malloc(sizeof(*memory))) == NULL)
{
helper->error(NULL, "malloc", 1);
return NULL;
}
memory->helper = helper;
ret = gtk_hbox_new(FALSE, 0);
desc = pango_font_description_new();
pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
label = gtk_label_new(_("RAM:"));
gtk_widget_modify_font(label, desc);
gtk_box_pack_start(GTK_BOX(ret), label, 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);
*widget = ret;
return memory;
#else
helper->error(NULL, _("memory: Unsupported platform"), 1);
return NULL;
#endif
}
/* memory_destroy */
static void _memory_destroy(Memory * memory)
{
g_source_remove(memory->timeout);
free(memory);
}
/* callbacks */
/* on_timeout */
#if defined(__linux__)
static gboolean _on_timeout(gpointer data)
{
Memory * memory = data;
struct sysinfo sy;
gdouble value;
if(sysinfo(&sy) != 0)
return memory->helper->error(memory->helper->panel, "sysinfo",
TRUE);
value = sy.sharedram;
value /= sy.totalram;
gtk_range_set_value(GTK_RANGE(memory->scale), value);
return TRUE;
}
#elif defined(__FreeBSD__) || defined(__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