[vala] gstreamer-0.10: gst_bus_poll return value can be null

[Jürg Billeter <juergbi src gnome org>]

commit f5d6d8219156d557e5ba0f963844afbe0e34a50a
Author: Víctor Manuel Jáquez Leal <vjaquez igalia com>
Date:   Mon Aug 17 19:16:03 2009 +0200

    gstreamer-0.10: gst_bus_poll return value can be null
    
    Fixes bug 592345.

 vapi/gstreamer-0.10.vapi                           |    2 +-
 .../gstreamer-0.10/gstreamer-0.10.metadata         |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/vapi/gstreamer-0.10.vapi b/vapi/gstreamer-0.10.vapi
index b958213..b68f116 100644
--- a/vapi/gstreamer-0.10.vapi
+++ b/vapi/gstreamer-0.10.vapi
@@ -118,7 +118,7 @@ namespace Gst {
 		public void enable_sync_message_emission ();
 		public bool have_pending ();
 		public Gst.Message peek ();
-		public Gst.Message poll (Gst.MessageType events, Gst.ClockTimeDiff timeout);
+		public Gst.Message? poll (Gst.MessageType events, Gst.ClockTimeDiff timeout);
 		public Gst.Message pop ();
 		public Gst.Message pop_filtered (Gst.MessageType types);
 		public bool post (owned Gst.Message message);
diff --git a/vapi/packages/gstreamer-0.10/gstreamer-0.10.metadata b/vapi/packages/gstreamer-0.10/gstreamer-0.10.metadata
index 3b3e10d..1cd33ab 100644
--- a/vapi/packages/gstreamer-0.10/gstreamer-0.10.metadata
+++ b/vapi/packages/gstreamer-0.10/gstreamer-0.10.metadata
@@ -37,7 +37,7 @@ gst_bus_add_watch_full.notify hidden="1"
 gst_bus_set_sync_handler.data hidden="1"
 gst_bus_sync_signal_handler hidden="1"
 gst_bus_peek transfer_ownership="1"
-gst_bus_poll transfer_ownership="1"
+gst_bus_poll transfer_ownership="1" nullable="1"
 gst_bus_pop transfer_ownership="1"
 gst_bus_pop_filtered transfer_ownership="1"
 gst_bus_post.message takes_ownership="1"