[gnome-settings-daemon] updates: Correctly clear the offline updates message after the notification

[Richard Hughes <rhughes src gnome org>]

commit 55f08fd7b640f8c20370ab06bd08c3a686e455de
Author: Richard Hughes <richard hughsie com>
Date:   Mon Jul 9 10:56:27 2012 +0100

    updates: Correctly clear the offline updates message after the notification
    
    Using an async call means a double-fork is done, which means pkexec fails with the:
    'Refusing to render service to dead parents.' message.

 plugins/updates/gsd-updates-manager.c |   24 ++++++++++++++++++++++--
 1 files changed, 22 insertions(+), 2 deletions(-)
---
diff --git a/plugins/updates/gsd-updates-manager.c b/plugins/updates/gsd-updates-manager.c
index fbfec41..fd3bd00 100644
--- a/plugins/updates/gsd-updates-manager.c
+++ b/plugins/updates/gsd-updates-manager.c
@@ -80,17 +80,37 @@ G_DEFINE_TYPE (GsdUpdatesManager, gsd_updates_manager, G_TYPE_OBJECT)
 static gpointer manager_object = NULL;
 
 static void
+child_exit_cb (GPid pid, gint status, gpointer user_data)
+{
+        g_spawn_close_pid (pid);
+}
+
+static void
 clear_offline_updates_message (void)
 {
         gboolean ret;
         GError *error = NULL;
-        ret = g_spawn_command_line_async ("pkexec " LIBEXECDIR "/pk-clear-offline-update",
-                                          &error);
+        gchar *argv[3];
+        GPid pid;
+
+        argv[0] = BINDIR "/pkexec";
+        argv[1] = LIBEXECDIR "/pk-clear-offline-update";
+        argv[2] = NULL;
+        ret = g_spawn_async (NULL,
+                             argv,
+                             NULL,
+                             G_SPAWN_DO_NOT_REAP_CHILD,
+                             NULL,
+                             NULL,
+                             &pid,
+                             &error);
         if (!ret) {
                 g_warning ("Failure clearing offline update message: %s",
                            error->message);
                 g_error_free (error);
+                return;
         }
+        g_child_watch_add (pid, child_exit_cb, NULL);
 }
 
 static void