Try to be better at cleaning up geoclue objects.

1 files changed, 58 insertions, 8 deletions

diff --git a/src/datetime-service.c b/src/datetime-service.c
index 8a31940..9f795d1 100644
--- a/src/datetime-service.c
+++ b/src/datetime-service.c
@@ -40,6 +40,8 @@ with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 static void geo_create_client (GeoclueMaster * master, GeoclueMasterClient * client, gchar * path, GError * error, gpointer user_data);
 static void setup_timer (void);
+static void geo_client_invalid (GeoclueMasterClient * client, gpointer user_data);
+static void geo_address_change (GeoclueMasterClient * client, gchar * a, gchar * b, gchar * c, gchar * d, gpointer user_data);
 
 static IndicatorService * service = NULL;
 static GMainLoop * mainloop = NULL;
@@ -384,6 +386,41 @@ geo_address_cb (GeoclueAddress * address, int timestamp, GHashTable * addy_data,
 	return;
 }
 
+/* Clean up the reference we kept to the address and make sure to
+   drop the signals incase someone else has one. */
+static void
+geo_address_clean (void)
+{
+	if (geo_address == NULL) {
+		return;
+	}
+
+	g_signal_handlers_disconnect_by_func(G_OBJECT(geo_address), geo_address_cb, NULL);
+	g_object_unref(G_OBJECT(geo_address));
+
+	geo_address = NULL;
+
+	return;
+}
+
+/* Clean up and remove all signal handlers from the client as we
+   unreference it as well. */
+static void
+geo_client_clean (void)
+{
+	if (geo_master == NULL) {
+		return;
+	}
+
+	g_signal_handlers_disconnect_by_func(G_OBJECT(geo_master), geo_client_invalid, NULL);
+	g_signal_handlers_disconnect_by_func(G_OBJECT(geo_master), geo_address_change, NULL);
+	g_object_unref(G_OBJECT(geo_master));
+
+	geo_master = NULL;
+
+	return;
+}
+
 /* Callback from creating the address */
 static void
 geo_create_address (GeoclueMasterClient * master, GeoclueAddress * address, GError * error, gpointer user_data)
@@ -393,6 +430,12 @@ geo_create_address (GeoclueMasterClient * master, GeoclueAddress * address, GErr
 		return;
 	}
 
+	/* We shouldn't have created a new address if we already had one
+	   so this is a warning.  But, it really is only a mem-leak so we
+	   don't need to error out. */
+	g_warn_if_fail(geo_address == NULL);
+	geo_address_clean();
+
 	g_debug("Created Geoclue Address");
 	geo_address = address;
 	g_object_ref(G_OBJECT(geo_address));
@@ -420,10 +463,12 @@ geo_client_invalid (GeoclueMasterClient * client, gpointer user_data)
 {
 	g_warning("Master client invalid, rebuilding.");
 
-	if (geo_master != NULL) {
-		g_object_unref(G_OBJECT(geo_master));
-	}
-	geo_master = NULL;
+	/* Client changes we can assume the address is now invalid so we
+	   need to unreference the one we had. */
+	geo_address_clean();
+
+	/* And our master client is invalid */
+	geo_client_clean();
 
 	GeoclueMaster * master = geoclue_master_get_default();
 	geoclue_master_create_client_async(master, geo_create_client, NULL);
@@ -444,10 +489,9 @@ geo_address_change (GeoclueMasterClient * client, gchar * a, gchar * b, gchar *
 {
 	g_warning("Address provider changed.  Let's change");
 
-	if (geo_address != NULL) {
-		g_object_unref(G_OBJECT(geo_address));
-	}
-	geo_address = NULL;
+	/* If the address is supposed to have changed we need to drop the old
+	   address before starting to get the new one. */
+	geo_address_clean();
 
 	geoclue_master_client_create_address_async(geo_master, geo_create_address, NULL);
 
@@ -470,6 +514,9 @@ geo_create_client (GeoclueMaster * master, GeoclueMasterClient * client, gchar *
 	geo_master = client;
 	g_object_ref(G_OBJECT(geo_master));
 
+	/* New client, make sure we don't have an address hanging on */
+	geo_address_clean();
+
 	geoclue_master_client_set_requirements_async(geo_master,
 	                                             GEOCLUE_ACCURACY_LEVEL_REGION,
 	                                             0,
@@ -537,6 +584,9 @@ main (int argc, char ** argv)
 	mainloop = g_main_loop_new(NULL, FALSE);
 	g_main_loop_run(mainloop);
 
+	geo_address_clean();
+	geo_client_clean();
+
 	g_object_unref(G_OBJECT(master));
 	g_object_unref(G_OBJECT(dbus));
 	g_object_unref(G_OBJECT(service));