1 files changed, 116 insertions, 15 deletions

diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index 240c688..81ef54f 100644
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -43,6 +43,12 @@ namespace OpenSim.Region.Framework.Scenes
 
     public delegate void ObjectDuplicateDelegate(EntityBase original, EntityBase clone);
 
+    public delegate void AttachToBackupDelegate(SceneObjectGroup sog);
+
+    public delegate void DetachFromBackupDelegate(SceneObjectGroup sog);
+
+    public delegate void ChangedBackupDelegate(SceneObjectGroup sog);
+
     public delegate void ObjectCreateDelegate(EntityBase obj);
 
     public delegate void ObjectDeleteDelegate(EntityBase obj);
@@ -61,6 +67,9 @@ namespace OpenSim.Region.Framework.Scenes
         private PhysicsCrash handlerPhysicsCrash = null;
 
         public event ObjectDuplicateDelegate OnObjectDuplicate;
+        public event AttachToBackupDelegate OnAttachToBackup;
+        public event DetachFromBackupDelegate OnDetachFromBackup;
+        public event ChangedBackupDelegate OnChangeBackup;
         public event ObjectCreateDelegate OnObjectCreate;
         public event ObjectDeleteDelegate OnObjectRemove;
 
@@ -68,7 +77,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         #region Fields
 
-        protected object m_presenceLock = new object();
+        protected OpenMetaverse.ReaderWriterLockSlim m_scenePresencesLock = new OpenMetaverse.ReaderWriterLockSlim();
         protected Dictionary<UUID, ScenePresence> m_scenePresenceMap = new Dictionary<UUID, ScenePresence>();
         protected List<ScenePresence> m_scenePresenceArray = new List<ScenePresence>();
 
@@ -133,13 +142,18 @@ namespace OpenSim.Region.Framework.Scenes
 
         protected internal void Close()
         {
-            lock (m_presenceLock)
+            m_scenePresencesLock.EnterWriteLock();
+            try
             {
                 Dictionary<UUID, ScenePresence> newmap = new Dictionary<UUID, ScenePresence>();
                 List<ScenePresence> newlist = new List<ScenePresence>();
                 m_scenePresenceMap = newmap;
                 m_scenePresenceArray = newlist;
             }
+            finally
+            {
+                m_scenePresencesLock.ExitWriteLock();
+            }
 
             lock (m_dictionary_lock)
             {
@@ -269,6 +283,30 @@ namespace OpenSim.Region.Framework.Scenes
         protected internal bool AddRestoredSceneObject(
             SceneObjectGroup sceneObject, bool attachToBackup, bool alreadyPersisted, bool sendClientUpdates)
         {
+                // KF: Check for out-of-region, move inside and make static.
+                        Vector3 npos = new Vector3(sceneObject.RootPart.GroupPosition.X,
+                                                           sceneObject.RootPart.GroupPosition.Y,
+                                                           sceneObject.RootPart.GroupPosition.Z);
+                        if (!(((sceneObject.RootPart.Shape.PCode == (byte)PCode.Prim) && (sceneObject.RootPart.Shape.State != 0))) && (npos.X < 0.0 || npos.Y < 0.0 || npos.Z < 0.0 ||
+                            npos.X > Constants.RegionSize ||
+                            npos.Y > Constants.RegionSize))
+                        {
+                                if (npos.X < 0.0) npos.X = 1.0f;
+                                if (npos.Y < 0.0) npos.Y = 1.0f;
+                                if (npos.Z < 0.0) npos.Z = 0.0f;
+                                if (npos.X > Constants.RegionSize) npos.X = Constants.RegionSize - 1.0f;
+                                if (npos.Y > Constants.RegionSize) npos.Y = Constants.RegionSize - 1.0f;
+ 
+                foreach (SceneObjectPart part in sceneObject.Children.Values)
+                {
+                        part.GroupPosition = npos;
+                }
+                sceneObject.RootPart.Velocity = Vector3.Zero;
+                sceneObject.RootPart.AngularVelocity = Vector3.Zero;
+                sceneObject.RootPart.Acceleration = Vector3.Zero;
+                sceneObject.RootPart.Velocity = Vector3.Zero;
+                        }
+                        
             if (!alreadyPersisted)
             {
                 sceneObject.ForceInventoryPersistence();
@@ -359,10 +397,14 @@ namespace OpenSim.Region.Framework.Scenes
                 m_numPrim += sceneObject.Children.Count;
 
                 if (attachToBackup)
+                {
                     sceneObject.AttachToBackup();
+                }
 
                 if (OnObjectCreate != null)
+                {
                     OnObjectCreate(sceneObject);
+                }
                 
                 lock (m_dictionary_lock)
                 {
@@ -429,6 +471,30 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        public void FireAttachToBackup(SceneObjectGroup obj)
+        {
+            if (OnAttachToBackup != null)
+            {
+                OnAttachToBackup(obj);
+            }
+        }
+
+        public void FireDetachFromBackup(SceneObjectGroup obj)
+        {
+            if (OnDetachFromBackup != null)
+            {
+                OnDetachFromBackup(obj);
+            }
+        }
+
+        public void FireChangeBackup(SceneObjectGroup obj)
+        {
+            if (OnChangeBackup != null)
+            {
+                OnChangeBackup(obj);
+            }
+        }
+
         /// <summary>
         /// Process all pending updates
         /// </summary>
@@ -565,7 +631,8 @@ namespace OpenSim.Region.Framework.Scenes
 
             Entities[presence.UUID] = presence;
 
-            lock (m_presenceLock)
+            m_scenePresencesLock.EnterWriteLock();
+            try
             {
                 Dictionary<UUID, ScenePresence> newmap = new Dictionary<UUID, ScenePresence>(m_scenePresenceMap);
                 List<ScenePresence> newlist = new List<ScenePresence>(m_scenePresenceArray);
@@ -589,6 +656,10 @@ namespace OpenSim.Region.Framework.Scenes
                 m_scenePresenceMap = newmap;
                 m_scenePresenceArray = newlist;
             }
+            finally
+            {
+                m_scenePresencesLock.ExitWriteLock();
+            }
         }
 
         /// <summary>
@@ -603,7 +674,8 @@ namespace OpenSim.Region.Framework.Scenes
                     agentID);
             }
 
-            lock (m_presenceLock)
+            m_scenePresencesLock.EnterWriteLock();
+            try
             {
                 Dictionary<UUID, ScenePresence> newmap = new Dictionary<UUID, ScenePresence>(m_scenePresenceMap);
                 List<ScenePresence> newlist = new List<ScenePresence>(m_scenePresenceArray);
@@ -625,6 +697,10 @@ namespace OpenSim.Region.Framework.Scenes
                     m_log.WarnFormat("[SCENE]: Tried to remove non-existent scene presence with agent ID {0} from scene ScenePresences list", agentID);
                 }
             }
+            finally
+            {
+                m_scenePresencesLock.ExitWriteLock();
+            }
         }
 
         protected internal void SwapRootChildAgent(bool direction_RC_CR_T_F)
@@ -1502,10 +1578,13 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="childPrims"></param>
         protected internal void LinkObjects(SceneObjectPart root, List<SceneObjectPart> children)
         {
+            SceneObjectGroup parentGroup = root.ParentGroup;
+            if (parentGroup == null) return;
             Monitor.Enter(m_updateLock);
+
             try
             {
-                SceneObjectGroup parentGroup = root.ParentGroup;
+                parentGroup.areUpdatesSuspended = true;
 
                 List<SceneObjectGroup> childGroups = new List<SceneObjectGroup>();
                 if (parentGroup != null)
@@ -1544,12 +1623,12 @@ namespace OpenSim.Region.Framework.Scenes
                 // occur on link to invoke this elsewhere (such as object selection)
                 parentGroup.RootPart.CreateSelected = true;
                 parentGroup.TriggerScriptChangedEvent(Changed.LINK);
-                parentGroup.HasGroupChanged = true;
-                parentGroup.ScheduleGroupForFullUpdate();
-                
             }
             finally
             {
+                parentGroup.areUpdatesSuspended = false;
+                parentGroup.HasGroupChanged = true;
+                parentGroup.ScheduleGroupForFullUpdate();
                 Monitor.Exit(m_updateLock);
             }
         }
@@ -1586,11 +1665,22 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
 
-                foreach (SceneObjectPart child in childParts)
+                if (childParts.Count > 0)
                 {
-                    // Unlink all child parts from their groups
-                    //
-                    child.ParentGroup.DelinkFromGroup(child, true);
+                    try
+                    {
+                        childParts[0].ParentGroup.areUpdatesSuspended = true;
+                        foreach (SceneObjectPart child in childParts)
+                        {
+                            // Unlink all child parts from their groups
+                            //
+                            child.ParentGroup.DelinkFromGroup(child, true);
+                        }
+                    }
+                    finally
+                    {
+                        childParts[0].ParentGroup.areUpdatesSuspended = false;
+                    }
                 }
 
                 foreach (SceneObjectPart root in rootParts)
@@ -1614,10 +1704,21 @@ namespace OpenSim.Region.Framework.Scenes
                         if (numChildren > 1)
                             sendEventsToRemainder = false;
 
-                        foreach (SceneObjectPart p in newSet)
+                        if (newSet.Count > 0)
                         {
-                            if (p != group.RootPart)
-                                group.DelinkFromGroup(p, sendEventsToRemainder);
+                            try
+                            {
+                                newSet[0].ParentGroup.areUpdatesSuspended = true;
+                                foreach (SceneObjectPart p in newSet)
+                                {
+                                    if (p != group.RootPart)
+                                        group.DelinkFromGroup(p, sendEventsToRemainder);
+                                }
+                            }
+                            finally
+                            {
+                                newSet[0].ParentGroup.areUpdatesSuspended = false;
+                            }
                         }
 
                         // If there is more than one prim remaining, we