From 4cf49369b51c21a0eadd719eb46f53d207e1e5f7 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Fri, 22 Jun 2012 01:39:39 +0100
Subject: Stop flicking IsAttachment false and then true in
 AttachmentsModule.UpdateAttachmentPosition() in order to avoid a hud update
 race condition.

Previously, setting IsAttachment to false then true was necessary to serialize the updated attachment object information.
However, UpdateAttachmentPosition no longer does this update.
Whilst IsAttachment is set to false there is a race condition where the update thread can wrongly send hud object updates to clients that do not own the hud, resulting in screen artifacts.
---
 .../Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs | 10 ----------
 1 file changed, 10 deletions(-)

(limited to 'OpenSim')

diff --git a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
index b74c0ba..a2b95eb 100644
--- a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
@@ -408,17 +408,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
             if (!Enabled)
                 return;
 
-            // First we save the
-            // attachment point information, then we update the relative 
-            // positioning. Then we have to mark the object as NOT an
-            // attachment. This is necessary in order to correctly save
-            // and retrieve GroupPosition information for the attachment.
-            // Finally, we restore the object's attachment status.
-            uint attachmentPoint = sog.AttachmentPoint;
             sog.UpdateGroupPosition(pos);
-            sog.IsAttachment = false;
-            sog.AbsolutePosition = sog.RootPart.AttachedPos;
-            sog.AttachmentPoint = attachmentPoint;
             sog.HasGroupChanged = true;            
         }
 
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