[gnome-bluetooth/gnome-3-28] settings: Cancel pending D-Bus calls on exit

[Bastien Nocera <hadess src gnome org>]

commit 22a74a3479ec3bc1eefe976bf7fb06c0df0fd145
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Mar 26 16:12:49 2019 +0100

    settings: Cancel pending D-Bus calls on exit

 lib/bluetooth-settings-obexpush.c | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)
---
diff --git a/lib/bluetooth-settings-obexpush.c b/lib/bluetooth-settings-obexpush.c
index e3ba0eef..0bb7f154 100644
--- a/lib/bluetooth-settings-obexpush.c
+++ b/lib/bluetooth-settings-obexpush.c
@@ -66,6 +66,7 @@ G_DEFINE_TYPE(ObexAgent, obex_agent, G_TYPE_OBJECT)
 
 static ObexAgent *agent;
 static BluetoothClient *client;
+static GCancellable *cancellable;
 
 static void
 on_close_notification (NotifyNotification *notification)
@@ -116,7 +117,7 @@ notification_launch_action_on_file_cb (NotifyNotification *notification,
                                        NULL,
                                        G_DBUS_CALL_FLAGS_NONE,
                                        -1,
-                                       NULL,
+                                       cancellable,
                                        NULL,
                                        NULL);
 
@@ -404,7 +405,7 @@ check_if_bonded_or_ask (GDBusProxy *transfer,
                                          MANAGER_SERVICE,
                                          session,
                                          SESSION_IFACE,
-                                         NULL,
+                                         cancellable,
                                          on_check_bonded_or_ask_session_acquired,
                                          invocation);
                g_variant_unref (v);
@@ -624,13 +625,25 @@ obex_agent_authorize_push (GObject *source_object,
                           GAsyncResult *res,
                           gpointer user_data)
 {
-       GDBusProxy *transfer = g_dbus_proxy_new_for_bus_finish (res, NULL);
-       GDBusMethodInvocation *invocation = user_data;
-       GVariant *variant = g_dbus_proxy_get_cached_property (transfer, "Name");
-       const gchar *filename = g_variant_get_string (variant, NULL);
+       GDBusProxy *transfer;
+       GError *error = NULL;
+       GDBusMethodInvocation *invocation;
+       GVariant *variant;
+       const gchar *filename;
        char *template;
        int fd;
 
+       transfer = g_dbus_proxy_new_for_bus_finish (res, &error);
+       if (!transfer) {
+               g_debug ("obex_agent_authorize_push() failed: %s", error->message);
+               g_error_free (error);
+               return;
+       }
+
+       invocation = user_data;
+       variant = g_dbus_proxy_get_cached_property (transfer, "Name");
+       filename = g_variant_get_string (variant, NULL);
+
        g_debug ("AuthorizePush received");
 
        template = g_build_filename (g_get_user_cache_dir (), "obexd", "XXXXXX", NULL);
@@ -679,7 +692,7 @@ handle_method_call (GDBusConnection       *connection,
                                          MANAGER_SERVICE,
                                          transfer,
                                          TRANSFER_IFACE,
-                                         NULL,
+                                         cancellable,
                                          obex_agent_authorize_push,
                                          invocation);
        } else {
@@ -713,7 +726,7 @@ obexd_appeared_cb (GDBusConnection *connection,
                                NULL,
                                G_DBUS_CALL_FLAGS_NONE,
                                -1,
-                               NULL,
+                               cancellable,
                                NULL,
                                NULL);
 }
@@ -821,6 +834,10 @@ obex_agent_down (void)
                                        NULL);
        }
 
+       if (cancellable != NULL) {
+               g_cancellable_cancel (cancellable);
+               g_clear_object (&cancellable);
+       }
        g_clear_object (&agent);
        g_clear_object (&client);
 }
@@ -834,4 +851,7 @@ obex_agent_up (void)
        if (!notify_init ("gnome-bluetooth")) {
                g_warning("Unable to initialize the notification system");
        }
+
+       g_assert (cancellable == NULL);
+       cancellable = g_cancellable_new ();
 }