162 lines
3.9 KiB
C
162 lines
3.9 KiB
C
/* $Id$ */
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/* Copyright (c) 2010-2012 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS Desktop Panel */
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/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <sys/time.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <errno.h>
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#if defined(__FreeBSD__) || defined(__NetBSD__)
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# if defined(__FreeBSD__)
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# include <sys/resource.h>
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# endif
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# include <sys/sysctl.h>
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#endif
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#include <libintl.h>
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#include <System.h>
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#include "Panel.h"
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#define _(string) gettext(string)
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/* Cpu */
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/* private */
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/* types */
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typedef struct _PanelApplet
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{
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PanelAppletHelper * helper;
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GtkWidget * scale;
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guint timeout;
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#if defined(__FreeBSD__) || defined(__NetBSD__)
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int used;
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int total;
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#endif
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} Cpu;
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/* prototypes */
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static Cpu * _cpu_init(PanelAppletHelper * helper, GtkWidget ** widget);
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static void _cpu_destroy(Cpu * cpu);
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/* callbacks */
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#if defined(__FreeBSD__) || defined(__NetBSD__)
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static gboolean _on_timeout(gpointer data);
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#endif
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/* public */
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/* variables */
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PanelAppletDefinition applet =
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{
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"CPU",
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"gnome-monitor",
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NULL,
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_cpu_init,
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_cpu_destroy,
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NULL,
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FALSE,
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TRUE
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};
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/* private */
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/* functions */
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/* cpu_init */
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static Cpu * _cpu_init(PanelAppletHelper * helper, GtkWidget ** widget)
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{
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#if defined(__FreeBSD__) || defined(__NetBSD__)
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Cpu * cpu;
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GtkWidget * ret;
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PangoFontDescription * desc;
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GtkWidget * label;
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if((cpu = malloc(sizeof(*cpu))) == NULL)
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{
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helper->error(helper->panel, "malloc", 0);
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return NULL;
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}
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cpu->helper = helper;
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ret = gtk_hbox_new(FALSE, 0);
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desc = pango_font_description_new();
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pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
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label = gtk_label_new(_("CPU:"));
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gtk_widget_modify_font(label, desc);
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gtk_box_pack_start(GTK_BOX(ret), label, FALSE, FALSE, 0);
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cpu->scale = gtk_vscale_new_with_range(0, 100, 1);
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gtk_widget_set_sensitive(cpu->scale, FALSE);
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gtk_range_set_inverted(GTK_RANGE(cpu->scale), TRUE);
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gtk_scale_set_value_pos(GTK_SCALE(cpu->scale), GTK_POS_RIGHT);
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gtk_box_pack_start(GTK_BOX(ret), cpu->scale, FALSE, FALSE, 0);
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cpu->timeout = g_timeout_add(500, _on_timeout, cpu);
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cpu->used = 0;
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cpu->total = 0;
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_on_timeout(cpu);
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pango_font_description_free(desc);
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gtk_widget_show_all(ret);
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*widget = ret;
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return cpu;
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#else
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error_set("%s: %s", "cpu", _("Unsupported platform"));
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return NULL;
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#endif
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}
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/* cpu_destroy */
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static void _cpu_destroy(Cpu * cpu)
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{
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g_source_remove(cpu->timeout);
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free(cpu);
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}
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/* callbacks */
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/* on_timeout */
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#if defined(__FreeBSD__) || defined(__NetBSD__)
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static gboolean _on_timeout(gpointer data)
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{
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Cpu * cpu = data;
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# if defined(__FreeBSD__)
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char const name[] = "kern.cp_time";
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# elif defined(__NetBSD__)
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int mib[] = { CTL_KERN, KERN_CP_TIME };
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# endif
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uint64_t cpu_time[CPUSTATES];
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size_t size = sizeof(cpu_time);
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int used;
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int total;
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gdouble value;
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# if defined(__FreeBSD__)
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if(sysctlbyname(name, &cpu_time, &size, NULL, 0) < 0)
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# elif defined(__NetBSD__)
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if(sysctl(mib, 2, &cpu_time, &size, NULL, 0) < 0)
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# endif
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return cpu->helper->error(cpu->helper->panel, "sysctl", TRUE);
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used = cpu_time[CP_USER] + cpu_time[CP_SYS] + cpu_time[CP_NICE]
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+ cpu_time[CP_INTR];
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total = used + cpu_time[CP_IDLE];
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if(cpu->used == 0 || total == cpu->total)
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value = 0;
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else
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value = 100 * (used - cpu->used) / (total - cpu->total);
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cpu->used = used;
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cpu->total = total;
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gtk_range_set_value(GTK_RANGE(cpu->scale), value);
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return TRUE;
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}
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#endif
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