/* * MATE CPUFreq Applet * Copyright (C) 2004 Carlos Garcia Campos <carlosgc@gnome.org> * * This library 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; either * version 2 of the License, or (at your option) any later version. * * This library 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 library; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * Authors : Carlos GarcĂa Campos <carlosgc@gnome.org> */ #include "cpufreq-monitor.h" #define CPUFREQ_MONITOR_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE((obj), CPUFREQ_TYPE_MONITOR, CPUFreqMonitorPrivate)) #define CPUFREQ_MONITOR_INTERVAL 1 /* Properties */ enum { PROP_0, PROP_CPU, PROP_ONLINE, PROP_FREQUENCY, PROP_MAX_FREQUENCY, PROP_GOVERNOR }; /* Signals */ enum { SIGNAL_CHANGED, N_SIGNALS }; struct _CPUFreqMonitorPrivate { guint cpu; gboolean online; gint cur_freq; gint max_freq; gchar *governor; GList *available_freqs; GList *available_govs; guint timeout_handler; gboolean changed; }; static void cpufreq_monitor_init (CPUFreqMonitor *monitor); static void cpufreq_monitor_class_init (CPUFreqMonitorClass *klass); static void cpufreq_monitor_finalize (GObject *object); static void cpufreq_monitor_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *spec); static void cpufreq_monitor_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *spec); static guint signals[N_SIGNALS] = { 0 }; G_DEFINE_ABSTRACT_TYPE (CPUFreqMonitor, cpufreq_monitor, G_TYPE_OBJECT) static void cpufreq_monitor_init (CPUFreqMonitor *monitor) { monitor->priv = CPUFREQ_MONITOR_GET_PRIVATE (monitor); monitor->priv->governor = NULL; monitor->priv->available_freqs = NULL; monitor->priv->available_govs = NULL; monitor->priv->timeout_handler = 0; monitor->priv->changed = FALSE; } static void cpufreq_monitor_class_init (CPUFreqMonitorClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->set_property = cpufreq_monitor_set_property; object_class->get_property = cpufreq_monitor_get_property; /* Public virtual methods */ klass->run = NULL; klass->get_available_frequencies = NULL; klass->get_available_governors = NULL; g_type_class_add_private (klass, sizeof (CPUFreqMonitorPrivate)); /* Porperties */ g_object_class_install_property (object_class, PROP_CPU, g_param_spec_uint ("cpu", "CPU", "The cpu to monitor", 0, G_MAXUINT, 0, G_PARAM_CONSTRUCT | G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_ONLINE, g_param_spec_boolean ("online", "Online", "Whether cpu is online", TRUE, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_FREQUENCY, g_param_spec_int ("frequency", "Frequency", "The current cpu frequency", 0, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_MAX_FREQUENCY, g_param_spec_int ("max-frequency", "MaxFrequency", "The max cpu frequency", 0, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_GOVERNOR, g_param_spec_string ("governor", "Governor", "The current cpufreq governor", NULL, G_PARAM_READWRITE)); /* Signals */ signals[SIGNAL_CHANGED] = g_signal_new ("changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (CPUFreqMonitorClass, changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); object_class->finalize = cpufreq_monitor_finalize; } static void cpufreq_monitor_finalize (GObject *object) { CPUFreqMonitor *monitor = CPUFREQ_MONITOR (object); monitor->priv->online = FALSE; if (monitor->priv->timeout_handler > 0) { g_source_remove (monitor->priv->timeout_handler); monitor->priv->timeout_handler = 0; } if (monitor->priv->governor) { g_free (monitor->priv->governor); monitor->priv->governor = NULL; } if (monitor->priv->available_freqs) { g_list_foreach (monitor->priv->available_freqs, (GFunc) g_free, NULL); g_list_free (monitor->priv->available_freqs); monitor->priv->available_freqs = NULL; } if (monitor->priv->available_govs) { g_list_foreach (monitor->priv->available_govs, (GFunc) g_free, NULL); g_list_free (monitor->priv->available_govs); monitor->priv->available_govs = NULL; } G_OBJECT_CLASS (cpufreq_monitor_parent_class)->finalize (object); } static void cpufreq_monitor_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *spec) { CPUFreqMonitor *monitor; monitor = CPUFREQ_MONITOR (object); switch (prop_id) { case PROP_CPU: { guint cpu = g_value_get_uint (value); if (cpu != monitor->priv->cpu) { monitor->priv->cpu = cpu; monitor->priv->changed = TRUE; } } break; case PROP_ONLINE: monitor->priv->online = g_value_get_boolean (value); break; case PROP_FREQUENCY: { gint freq = g_value_get_int (value); if (freq != monitor->priv->cur_freq) { monitor->priv->cur_freq = freq; monitor->priv->changed = TRUE; } } break; case PROP_MAX_FREQUENCY: { gint freq = g_value_get_int (value); if (freq != monitor->priv->max_freq) { monitor->priv->max_freq = freq; monitor->priv->changed = TRUE; } } break; case PROP_GOVERNOR: { const gchar *gov = g_value_get_string (value); if (monitor->priv->governor) { if (g_ascii_strcasecmp (gov, monitor->priv->governor) != 0) { g_free (monitor->priv->governor); monitor->priv->governor = gov ? g_strdup (gov) : NULL; monitor->priv->changed = TRUE; } } else { monitor->priv->governor = gov ? g_strdup (gov) : NULL; monitor->priv->changed = TRUE; } } break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, spec); break; } } static void cpufreq_monitor_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *spec) { CPUFreqMonitor *monitor; monitor = CPUFREQ_MONITOR (object); switch (prop_id) { case PROP_CPU: g_value_set_uint (value, monitor->priv->cpu); break; case PROP_ONLINE: g_value_set_boolean (value, monitor->priv->online); break; case PROP_FREQUENCY: g_value_set_int (value, monitor->priv->cur_freq); break; case PROP_MAX_FREQUENCY: g_value_set_int (value, monitor->priv->max_freq); break; case PROP_GOVERNOR: g_value_set_string (value, monitor->priv->governor); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, spec); break; } } static gboolean cpufreq_monitor_run_cb (CPUFreqMonitor *monitor) { CPUFreqMonitorClass *class; gboolean retval = FALSE; class = CPUFREQ_MONITOR_GET_CLASS (monitor); if (class->run) retval = class->run (monitor); if (monitor->priv->changed) { g_signal_emit (monitor, signals[SIGNAL_CHANGED], 0); monitor->priv->changed = FALSE; } return retval; } void cpufreq_monitor_run (CPUFreqMonitor *monitor) { g_return_if_fail (CPUFREQ_IS_MONITOR (monitor)); if (monitor->priv->timeout_handler > 0) return; monitor->priv->timeout_handler = g_timeout_add_seconds (CPUFREQ_MONITOR_INTERVAL, (GSourceFunc) cpufreq_monitor_run_cb, (gpointer) monitor); } GList * cpufreq_monitor_get_available_frequencies (CPUFreqMonitor *monitor) { CPUFreqMonitorClass *class; g_return_val_if_fail (CPUFREQ_IS_MONITOR (monitor), NULL); if (!monitor->priv->online) return NULL; if (monitor->priv->available_freqs) return monitor->priv->available_freqs; class = CPUFREQ_MONITOR_GET_CLASS (monitor); if (class->get_available_frequencies) { monitor->priv->available_freqs = class->get_available_frequencies (monitor); } return monitor->priv->available_freqs; } GList * cpufreq_monitor_get_available_governors (CPUFreqMonitor *monitor) { CPUFreqMonitorClass *class; g_return_val_if_fail (CPUFREQ_IS_MONITOR (monitor), NULL); if (!monitor->priv->online) return NULL; if (monitor->priv->available_govs) return monitor->priv->available_govs; class = CPUFREQ_MONITOR_GET_CLASS (monitor); if (class->get_available_governors) { monitor->priv->available_govs = class->get_available_governors (monitor); } return monitor->priv->available_govs; } guint cpufreq_monitor_get_cpu (CPUFreqMonitor *monitor) { g_return_val_if_fail (CPUFREQ_IS_MONITOR (monitor), 0); return monitor->priv->cpu; } void cpufreq_monitor_set_cpu (CPUFreqMonitor *monitor, guint cpu) { g_return_if_fail (CPUFREQ_IS_MONITOR (monitor)); g_object_set (G_OBJECT (monitor), "cpu", cpu, NULL); } gint cpufreq_monitor_get_frequency (CPUFreqMonitor *monitor) { g_return_val_if_fail (CPUFREQ_IS_MONITOR (monitor), -1); return monitor->priv->cur_freq; } const gchar * cpufreq_monitor_get_governor (CPUFreqMonitor *monitor) { g_return_val_if_fail (CPUFREQ_IS_MONITOR (monitor), NULL); return monitor->priv->governor; } gint cpufreq_monitor_get_percentage (CPUFreqMonitor *monitor) { g_return_val_if_fail (CPUFREQ_IS_MONITOR (monitor), -1); if (monitor->priv->max_freq > 0) { return ((monitor->priv->cur_freq * 100) / monitor->priv->max_freq); } return -1; }