device: Add polling related properties

Add last-refresh and poll-timeout properties. Update the last-refresh
property automatically from the internal refresh method. Note that it is
fine if we miss (some) updates for now, as the polling code which uses
the property will update it.

1 files changed, 56 insertions, 1 deletions

diff --git a/src/up-device.c b/src/up-device.c
index fe2f438..1aac3e6 100644
--- a/src/up-device.c
+++ b/src/up-device.c
@@ -42,6 +42,9 @@ struct UpDevicePrivate
 
 	UpHistory		*history;
 	gboolean		 has_ever_refresh;
+
+	gint64			last_refresh;
+	int			poll_timeout;
 };
 
 static void up_device_initable_iface_init (GInitableIface *iface);
@@ -55,6 +58,8 @@ enum {
   PROP_0,
   PROP_DAEMON,
   PROP_NATIVE,
+  PROP_LAST_REFRESH,
+  PROP_POLL_TIMEOUT,
   N_PROPS
 };
 
@@ -604,8 +609,11 @@ up_device_refresh_internal (UpDevice *device, UpRefreshReason reason)
 	if (klass->refresh == NULL)
 		goto out;
 
-	/* do the refresh */
+	/* do the refresh, and change the property */
 	ret = klass->refresh (device, reason);
+	device->priv->last_refresh = g_get_monotonic_time ();
+	g_object_notify_by_pspec (G_OBJECT (device), properties[PROP_LAST_REFRESH]);
+
 	if (!ret) {
 		g_debug ("no changes");
 		goto out;
@@ -696,6 +704,34 @@ up_device_set_property (GObject      *object,
 		priv->native = g_value_dup_object (value);
 		break;
 
+	case PROP_POLL_TIMEOUT:
+		priv->poll_timeout = g_value_get_int (value);
+		break;
+
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+	}
+}
+
+static void
+up_device_get_property (GObject      *object,
+                        guint         prop_id,
+                        GValue       *value,
+                        GParamSpec   *pspec)
+{
+	UpDevice *device = UP_DEVICE (object);
+	UpDevicePrivate *priv = up_device_get_instance_private (device);
+
+	switch (prop_id)
+	{
+	case PROP_POLL_TIMEOUT:
+		g_value_set_int (value, priv->poll_timeout);
+		break;
+
+	case PROP_LAST_REFRESH:
+		g_value_set_int64 (value, priv->last_refresh);
+		break;
+
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 	}
@@ -711,6 +747,7 @@ up_device_class_init (UpDeviceClass *klass)
 	object_class->dispose = up_device_dispose;
 
 	object_class->set_property = up_device_set_property;
+	object_class->get_property = up_device_get_property;
 
 	properties[PROP_DAEMON] =
 		g_param_spec_object ("daemon",
@@ -726,6 +763,24 @@ up_device_class_init (UpDeviceClass *klass)
 		                     G_TYPE_OBJECT,
 		                     G_PARAM_STATIC_STRINGS | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY);
 
+	properties[PROP_POLL_TIMEOUT] =
+		g_param_spec_int ("poll-timeout",
+		                  "Poll timeout",
+		                  "Time in seconds between polls",
+		                  0,
+		                  3600,
+		                  0,
+		                  G_PARAM_STATIC_STRINGS | G_PARAM_WRITABLE | G_PARAM_READABLE);
+
+	properties[PROP_LAST_REFRESH] =
+		g_param_spec_int64 ("last-refresh",
+		                    "Last Refresh",
+		                    "Time of last refresh (in monotonic clock)",
+		                    -1,
+		                    G_MAXINT64,
+		                    0,
+		                    G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+
 	g_object_class_install_properties (object_class, N_PROPS, properties);
 }