Rewrote parts of the code that were double-locking different objects. This is about half of the code base reviewed.

2 files changed, 43 insertions, 29 deletions

diff --git a/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs b/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
index 5b571c7..df9473d 100644
--- a/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
+++ b/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
@@ -122,12 +122,13 @@ namespace OpenSim.Region.Framework.Scenes
         public bool InventoryDeQueueAndDelete()
         {
             DeleteToInventoryHolder x = null;
+            int left = 0;
  
             try
             {
                 lock (m_inventoryDeletes)
                 {
-                    int left = m_inventoryDeletes.Count;
+                    left = m_inventoryDeletes.Count;
                     if (left > 0)
                     {
                         x = m_inventoryDeletes.Dequeue();
@@ -136,23 +137,26 @@ namespace OpenSim.Region.Framework.Scenes
                             m_inventoryDeletes.Enqueue(x);
                             return true;
                         }
+                    }
+                }
 
-                        m_log.DebugFormat(
-                            "[SCENE]: Sending object to user's inventory, {0} item(s) remaining.", left);
-                        
-                        try
-                        {
-                            m_scene.DeleteToInventory(x.action, x.folderID, x.objectGroup, x.remoteClient);
-                            if (x.permissionToDelete)
-                                m_scene.DeleteSceneObject(x.objectGroup, false);
-                        }
-                        catch (Exception e)
-                        {
-                            m_log.DebugFormat("Exception background sending object: " + e);
-                        }
-                        
-                        return true;
+                if (left > 0)
+                {
+                    m_log.DebugFormat(
+                        "[SCENE]: Sending object to user's inventory, {0} item(s) remaining.", left);
+                    
+                    try
+                    {
+                        m_scene.DeleteToInventory(x.action, x.folderID, x.objectGroup, x.remoteClient);
+                        if (x.permissionToDelete)
+                            m_scene.DeleteSceneObject(x.objectGroup, false);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.DebugFormat("Exception background sending object: " + e);
                     }
+                    
+                    return true;
                 }
             }
             catch (Exception e)
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index 54ac792..20b3b5c 100644
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -297,34 +297,44 @@ namespace OpenSim.Region.Framework.Scenes
 
             sceneObject.AttachToScene(m_parentScene);
 
+            List<SceneObjectPart> parts = null;
+            bool found = false;
             lock (sceneObject)
             {
                 if (!Entities.ContainsKey(sceneObject.UUID))
                 {
+                    found = true;
                     Entities.Add(sceneObject);
                     m_numPrim += sceneObject.Children.Count;
 
                     if (attachToBackup)
                         sceneObject.AttachToBackup();
 
-                    if (OnObjectCreate != null)
-                        OnObjectCreate(sceneObject);
-                    
-                    lock (m_dictionary_lock)
+                    parts = new List<SceneObjectPart>(sceneObject.Children.Values);
+
+                }
+            }
+
+            if (found)
+            {
+                lock (m_dictionary_lock)
+                {
+                    SceneObjectGroupsByFullID[sceneObject.UUID] = sceneObject;
+                    SceneObjectGroupsByLocalID[sceneObject.LocalId] = sceneObject;
+                    foreach (SceneObjectPart part in parts)
                     {
-                        SceneObjectGroupsByFullID[sceneObject.UUID] = sceneObject;
-                        SceneObjectGroupsByLocalID[sceneObject.LocalId] = sceneObject;
-                        foreach (SceneObjectPart part in sceneObject.Children.Values)
-                        {
-                            SceneObjectGroupsByFullID[part.UUID] = sceneObject;
-                            SceneObjectGroupsByLocalID[part.LocalId] = sceneObject;
-                        }
+                        SceneObjectGroupsByFullID[part.UUID] = sceneObject;
+                        SceneObjectGroupsByLocalID[part.LocalId] = sceneObject;
                     }
-
-                    return true;
                 }
+
+                if (OnObjectCreate != null)
+                    OnObjectCreate(sceneObject);
+
+                return true;
             }
 
+
             return false;
         }