|From: James J Greensky <jame.j.greensky@intel.com>

|Date: Wed, 5 Aug 2009 09:51:52 -0700
|Subject: [PATCH] Closed two major memory leaks for scripted objects
|
|Two major memory leaks for the scripted objects were fixed
|- One leak had to do with remoting acrossing app domains.  When a script and
|  its controlling agent communicate across an application boundary, it calls
|  functions on a stub proxy object that then invokes the remote method on
|  the object in the other app domain. These stub objects (two for each script)
|  were setup to have infinate lifetimes and were never being garbage collected.
|- The second leak was the result of adding a scene object part instance method
|  to a scene event and never removing it.  This cause the event's delegate list
|  to maintain a link to that object which is then never freed as the scene event
|  object is never destroyed.

Patch applied, please direct feedback to me. Possible issue: Longtime idle
scripts like vendors may fail.

1 files changed, 7 insertions, 7 deletions

diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index c7673c7..ff75e2f 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -272,6 +272,10 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     instance.ClearQueue();
                     instance.Stop(0);
 
+                    // Release events, timer, etc
+                    //
+                    instance.DestroyScriptInstance();
+
                     // Unload scripts and app domains
                     // Must be done explicitly because they have infinite
                     // lifetime
@@ -282,10 +286,6 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                         m_DomainScripts.Remove(instance.AppDomain);
                         UnloadAppDomain(instance.AppDomain);
                     }
-
-                    // Release events, timer, etc
-                    //
-                    instance.DestroyScriptInstance();
                 }
                 m_Scripts.Clear();
                 m_PrimObjects.Clear();
@@ -802,6 +802,9 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     }
                 }
 
+                instance.RemoveState();
+                instance.DestroyScriptInstance();
+
                 m_DomainScripts[instance.AppDomain].Remove(instance.ItemID);
                 if (m_DomainScripts[instance.AppDomain].Count == 0)
                 {
@@ -809,9 +812,6 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     UnloadAppDomain(instance.AppDomain);
                 }
 
-                instance.RemoveState();
-                instance.DestroyScriptInstance();
-
                 instance = null;
 
                 ObjectRemoved handlerObjectRemoved = OnObjectRemoved;