Add GPowerProfileMonitor

gio/tests/power-profile-monitor.c

@@ -0,0 +1,79 @@
+/* GIO - GLib Input, Output and Streaming Library
+ *
+ * Copyright 2021 Igalia S.L.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <gio/gio.h>
+
+static void
+test_dup_default (void)
+{
+  GPowerProfileMonitor *monitor;
+
+  monitor = g_power_profile_monitor_dup_default ();
+  g_assert_nonnull (monitor);
+  g_object_unref (monitor);
+}
+
+static void
+power_saver_enabled_cb (GPowerProfileMonitor *monitor,
+                        GParamSpec           *pspec,
+                        gpointer              user_data)
+{
+  gboolean enabled;
+
+  enabled = g_power_profile_monitor_get_power_saver_enabled (monitor);
+  g_debug ("Power Saver %s (%d)", enabled ? "enabled" : "disabled", enabled);
+}
+
+static void
+do_watch_power_profile (void)
+{
+  GPowerProfileMonitor *monitor;
+  GMainLoop *loop;
+  gulong signal_id;
+
+  monitor = g_power_profile_monitor_dup_default ();
+  signal_id = g_signal_connect (G_OBJECT (monitor), "notify::power-saver-enabled",
+		                G_CALLBACK (power_saver_enabled_cb), NULL);
+
+  loop = g_main_loop_new (NULL, TRUE);
+  g_main_loop_run (loop);
+
+  g_signal_handler_disconnect (monitor, signal_id);
+  g_object_unref (monitor);
+  g_main_loop_unref (loop);
+}
+
+int
+main (int argc, char **argv)
+{
+  int ret;
+
+  if (argc == 2 && !strcmp (argv[1], "--watch"))
+    {
+      do_watch_power_profile ();
+      return 0;
+    }
+
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/power-profile-monitor/default", test_dup_default);
+
+  ret = g_test_run ();
+
+  return ret;
+}