[vala] glib-2.0: AsyncQueue.try_pop() and timed_pop() may return null

[Luca Bruno <lucabru src gnome org>]

commit 206ab85db95d4ef22c861dca3be2e0a325ef4bb1
Author: Alexander Kurtz <kurtz alex googlemail com>
Date:   Thu Feb 2 14:26:04 2012 +0100

    glib-2.0: AsyncQueue.try_pop() and timed_pop() may return null
    
    Fixes bug 669242.

 vapi/glib-2.0.vapi |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index a428bb1..9cd49a0 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -1968,8 +1968,8 @@ namespace GLib {
 		public void push (owned G data);
 		public void push_sorted (owned G data, CompareDataFunc<G> func);
 		public G pop ();
-		public G try_pop ();
-		public G timed_pop (ref TimeVal end_time);
+		public G? try_pop ();
+		public G? timed_pop (ref TimeVal end_time);
 		public int length ();
 		public void sort (CompareDataFunc<G> func);
 		public void @lock ();
@@ -1979,8 +1979,8 @@ namespace GLib {
 		public void push_unlocked (owned G data);
 		public void push_sorted_unlocked (owned G data, CompareDataFunc<G> func);
 		public G pop_unlocked ();
-		public G try_pop_unlocked ();
-		public G timed_pop_unlocked (ref TimeVal end_time);
+		public G? try_pop_unlocked ();
+		public G? timed_pop_unlocked (ref TimeVal end_time);
 		public int length_unlocked ();
 		public void sort_unlocked (CompareDataFunc<G> func);
 	}