From 3505ab759d61b511f12485541c36cb8aac8e4736 Mon Sep 17 00:00:00 2001
From: UbitUmarov <ajlduarte@sapo.pt>
Date: Wed, 16 Dec 2015 23:54:48 +0000
Subject: [PATCH] dont bother another thread to try to send if there is no one
 to listen

---
 OpenSim/Region/Framework/Scenes/ScenePresence.cs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index d8708302d3..f5ca3ef66f 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -3896,8 +3896,16 @@ namespace OpenSim.Region.Framework.Scenes
                 m_scene.EventManager.TriggerSignificantClientMovement(this);
             }
 
-            if(!childUpdatesBusy)            
-            {
+            if(childUpdatesBusy)
+                return;
+            
+            //possible KnownRegionHandles always contains current region and this check is not needed
+            int minhandles = 0;
+            if(KnownRegionHandles.Contains(RegionHandle))
+                    minhandles++;
+
+            if(KnownRegionHandles.Count > minhandles)            
+            {              
                 int tdiff = Util.EnvironmentTickCountSubtract(lastChildUpdatesTime);
                 if(tdiff > CHILDUPDATES_TIME)
                 {