From c605c7a7b7f7e79147d1f32ab03ff244e375204e Mon Sep 17 00:00:00 2001
From: "Justin Clark-Casey (justincc)" <jjustincc@googlemail.com>
Date: Tue, 18 Mar 2014 19:54:07 +0000
Subject: [PATCH] Lock m_syncRoot on DoubleQueue.Count.  This is not documented
 as a thread-safe operation

---
 OpenSim/Framework/Util.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 65cf1778b4..efaed6220c 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -2304,7 +2304,11 @@ namespace OpenSim.Framework
 
         public virtual int Count
         {
-            get { return m_highQueue.Count + m_lowQueue.Count; }
+            get 
+            { 
+                lock (m_syncRoot)
+                    return m_highQueue.Count + m_lowQueue.Count; 
+            }
         }
 
         public virtual void Enqueue(T data)