src/nm-sleep-monitor-upower.c

   1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
   2 /* This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License as published by
   4  * the Free Software Foundation; either version 2 of the License, or
   5  * (at your option) any later version.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License along
  13  * with this program; if not, write to the Free Software Foundation, Inc.,
  14  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  15  *
  16  * (C) Copyright 2012 Red Hat, Inc.
  17  * Author: Matthias Clasen <mclasen@redhat.com>
  18  */
  19
  20 #include "nm-default.h"
  21
  22 #include <errno.h>
  23 #include <string.h>
  24 #include <sys/stat.h>
  25
  26 #include "nm-core-internal.h"
  27
  28 #include "nm-sleep-monitor.h"
  29
  30 #define UPOWER_DBUS_SERVICE "org.freedesktop.UPower"
  31
  32 struct _NMSleepMonitor {
  33         GObject parent_instance;
  34
  35         GDBusProxy *upower_proxy;
  36 };
  37
  38 struct _NMSleepMonitorClass {
  39         GObjectClass parent_class;
  40
  41         void (*sleeping) (NMSleepMonitor *monitor);
  42         void (*resuming) (NMSleepMonitor *monitor);
  43 };
  44
  45
  46 enum {
  47         SLEEPING,
  48         RESUMING,
  49         LAST_SIGNAL,
  50 };
  51 static guint signals[LAST_SIGNAL] = {0};
  52
  53 G_DEFINE_TYPE (NMSleepMonitor, nm_sleep_monitor, G_TYPE_OBJECT);
  54
  55 /********************************************************************/
  56
  57 static void
  58 upower_sleeping_cb (GDBusProxy *proxy, gpointer user_data)
  59 {
  60         nm_log_dbg (LOGD_SUSPEND, "Received UPower sleeping signal");
  61         g_signal_emit (user_data, signals[SLEEPING], 0);
  62 }
  63
  64 static void
  65 upower_resuming_cb (GDBusProxy *proxy, gpointer user_data)
  66 {
  67         nm_log_dbg (LOGD_SUSPEND, "Received UPower resuming signal");
  68         g_signal_emit (user_data, signals[RESUMING], 0);
  69 }
  70
  71 static void
  72 nm_sleep_monitor_init (NMSleepMonitor *self)
  73 {
  74         GError *error = NULL;
  75
  76         self->upower_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
  77                                                             G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START |
  78                                                                 G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
  79                                                             NULL,
  80                                                             UPOWER_DBUS_SERVICE,
  81                                                             "/org/freedesktop/UPower",
  82                                                             "org.freedesktop.UPower",
  83                                                             NULL, &error);
  84         if (self->upower_proxy) {
  85                 _nm_dbus_signal_connect (self->upower_proxy, "Sleeping", NULL,
  86                                          G_CALLBACK (upower_sleeping_cb), self);
  87                 _nm_dbus_signal_connect (self->upower_proxy, "Resuming", NULL,
  88                                          G_CALLBACK (upower_resuming_cb), self);
  89         } else {
  90                 nm_log_warn (LOGD_SUSPEND, "could not initialize UPower D-Bus proxy: %s", error->message);
  91                 g_error_free (error);
  92         }
  93 }
  94
  95 static void
  96 finalize (GObject *object)
  97 {
  98         NMSleepMonitor *self = NM_SLEEP_MONITOR (object);
  99
 100         g_clear_object (&self->upower_proxy);
 101
 102         G_OBJECT_CLASS (nm_sleep_monitor_parent_class)->finalize (object);
 103 }
 104
 105 static void
 106 nm_sleep_monitor_class_init (NMSleepMonitorClass *klass)
 107 {
 108         GObjectClass *gobject_class;
 109
 110         gobject_class = G_OBJECT_CLASS (klass);
 111
 112         gobject_class->finalize = finalize;
 113
 114         signals[SLEEPING] = g_signal_new (NM_SLEEP_MONITOR_SLEEPING,
 115                                           NM_TYPE_SLEEP_MONITOR,
 116                                           G_SIGNAL_RUN_LAST,
 117                                           G_STRUCT_OFFSET (NMSleepMonitorClass, sleeping),
 118                                           NULL,                   /* accumulator      */
 119                                           NULL,                   /* accumulator data */
 120                                           g_cclosure_marshal_VOID__VOID,
 121                                           G_TYPE_NONE, 0);
 122         signals[RESUMING] = g_signal_new (NM_SLEEP_MONITOR_RESUMING,
 123                                           NM_TYPE_SLEEP_MONITOR,
 124                                           G_SIGNAL_RUN_LAST,
 125                                           G_STRUCT_OFFSET (NMSleepMonitorClass, resuming),
 126                                           NULL,                   /* accumulator      */
 127                                           NULL,                   /* accumulator data */
 128                                           g_cclosure_marshal_VOID__VOID,
 129                                           G_TYPE_NONE, 0);
 130 }
 131
 132 NM_DEFINE_SINGLETON_GETTER (NMSleepMonitor, nm_sleep_monitor_get, NM_TYPE_SLEEP_MONITOR);
 133
 134 /* ---------------------------------------------------------------------------------------------------- */