1 files changed, 170 insertions, 58 deletions

diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index 82ded28..e1fde64 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>();
 
@@ -130,13 +139,18 @@ 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 (SceneObjectGroupsByFullID)
                 SceneObjectGroupsByFullID.Clear();
@@ -275,6 +289,33 @@ namespace OpenSim.Region.Framework.Scenes
         protected internal bool AddRestoredSceneObject(
             SceneObjectGroup sceneObject, bool attachToBackup, bool alreadyPersisted, bool sendClientUpdates)
         {
+            if (!m_parentScene.CombineRegions)
+            {
+                // 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.Parts)
+                    {
+                        part.GroupPosition = npos;
+                    }
+                    sceneObject.RootPart.Velocity = Vector3.Zero;
+                    sceneObject.RootPart.AngularVelocity = Vector3.Zero;
+                    sceneObject.RootPart.Acceleration = Vector3.Zero;
+                    sceneObject.RootPart.Velocity = Vector3.Zero;
+                }
+            }
+
             if (attachToBackup && (!alreadyPersisted))
             {
                 sceneObject.ForceInventoryPersistence();
@@ -492,6 +533,30 @@ namespace OpenSim.Region.Framework.Scenes
                 m_updateList[obj.UUID] = obj;
         }
 
+        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>
@@ -623,7 +688,8 @@ 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);
@@ -647,6 +713,10 @@ namespace OpenSim.Region.Framework.Scenes
                 m_scenePresenceMap = newmap;
                 m_scenePresenceArray = newlist;
             }
+            finally
+            {
+                m_scenePresencesLock.ExitWriteLock();
+            }
         }
 
         /// <summary>
@@ -661,7 +731,8 @@ 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);
@@ -683,6 +754,10 @@ namespace OpenSim.Region.Framework.Scenes
                     m_log.WarnFormat("[SCENE GRAPH]: 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)
@@ -1396,8 +1471,13 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 if (group.IsAttachment || (group.RootPart.Shape.PCode == 9 && group.RootPart.Shape.State != 0))
                 {
-                    if (m_parentScene.AttachmentsModule != null)
-                        m_parentScene.AttachmentsModule.UpdateAttachmentPosition(group, pos);
+                    // Set the new attachment point data in the object
+                    byte attachmentPoint = group.GetAttachmentPoint();
+                    group.UpdateGroupPosition(pos);
+                    group.IsAttachment = false;
+                    group.AbsolutePosition = group.RootPart.AttachedPos;
+                    group.AttachmentPoint = attachmentPoint;
+                    group.HasGroupChanged = true;
                 }
                 else
                 {
@@ -1661,24 +1741,31 @@ 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>();
 
                 // We do this in reverse to get the link order of the prims correct
-                for (int i = children.Count - 1; i >= 0; i--)
+                for (int i = 0 ; i < children.Count ; i++)
                 {
                     SceneObjectGroup child = children[i].ParentGroup;
 
                     // Make sure no child prim is set for sale
                     // So that, on delink, no prims are unwittingly
                     // left for sale and sold off
-                    child.RootPart.ObjectSaleType = 0;
-                    child.RootPart.SalePrice = 10;
-                    childGroups.Add(child);
+                   
+                    if (child != null)
+                    {
+                        child.RootPart.ObjectSaleType = 0;
+                        child.RootPart.SalePrice = 10;
+                        childGroups.Add(child);
+                    }
                 }
 
                 foreach (SceneObjectGroup child in childGroups)
@@ -1694,12 +1781,19 @@ 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
             {
+                lock (SceneObjectGroupsByLocalPartID)
+                {
+                    foreach (SceneObjectPart part in parentGroup.Parts)
+                        SceneObjectGroupsByLocalPartID[part.LocalId] = parentGroup;
+                }
+
+                parentGroup.areUpdatesSuspended = false;
+                parentGroup.HasGroupChanged = true;
+                parentGroup.ProcessBackup(m_parentScene.SimulationDataService, true);
+                parentGroup.ScheduleGroupForFullUpdate();
                 Monitor.Exit(m_updateLock);
             }
         }
@@ -1731,21 +1825,24 @@ namespace OpenSim.Region.Framework.Scenes
 
                             SceneObjectGroup group = part.ParentGroup;
                             if (!affectedGroups.Contains(group))
+                            {
+                                group.areUpdatesSuspended = true;
                                 affectedGroups.Add(group);
+                            }
                         }
                     }
                 }
 
-                foreach (SceneObjectPart child in childParts)
+                if (childParts.Count > 0)
                 {
-                    // Unlink all child parts from their groups
-                    //
-                    child.ParentGroup.DelinkFromGroup(child, true);
-
-                    // These are not in affected groups and will not be
-                    // handled further. Do the honors here.
-                    child.ParentGroup.HasGroupChanged = true;
-                    child.ParentGroup.ScheduleGroupForFullUpdate();
+                    foreach (SceneObjectPart child in childParts)
+                    {
+                        // Unlink all child parts from their groups
+                        //
+                        child.ParentGroup.DelinkFromGroup(child, true);
+                        child.ParentGroup.HasGroupChanged = true;
+                        child.ParentGroup.ScheduleGroupForFullUpdate();
+                    }
                 }
 
                 foreach (SceneObjectPart root in rootParts)
@@ -1755,56 +1852,68 @@ namespace OpenSim.Region.Framework.Scenes
                     // However, editing linked parts and unlinking may be different
                     //
                     SceneObjectGroup group = root.ParentGroup;
+                    group.areUpdatesSuspended = true;
                     
                     List<SceneObjectPart> newSet = new List<SceneObjectPart>(group.Parts);
                     int numChildren = newSet.Count;
 
+                    if (numChildren == 1)
+                        break;
+
                     // If there are prims left in a link set, but the root is
                     // slated for unlink, we need to do this
+                    // Unlink the remaining set
                     //
-                    if (numChildren != 1)
-                    {
-                        // Unlink the remaining set
-                        //
-                        bool sendEventsToRemainder = true;
-                        if (numChildren > 1)
-                            sendEventsToRemainder = false;
+                    bool sendEventsToRemainder = true;
+                    if (numChildren > 1)
+                        sendEventsToRemainder = false;
 
-                        foreach (SceneObjectPart p in newSet)
+                    foreach (SceneObjectPart p in newSet)
+                    {
+                        if (p != group.RootPart)
                         {
-                            if (p != group.RootPart)
-                                group.DelinkFromGroup(p, sendEventsToRemainder);
+                            group.DelinkFromGroup(p, sendEventsToRemainder);
+                            if (numChildren > 2)
+                            {
+                                p.ParentGroup.areUpdatesSuspended = true;
+                            }
+                            else
+                            {
+                                p.ParentGroup.HasGroupChanged = true;
+                                p.ParentGroup.ScheduleGroupForFullUpdate();
+                            }
                         }
+                    }
+
+                    // If there is more than one prim remaining, we
+                    // need to re-link
+                    //
+                    if (numChildren > 2)
+                    {
+                        // Remove old root
+                        //
+                        if (newSet.Contains(root))
+                            newSet.Remove(root);
 
-                        // If there is more than one prim remaining, we
-                        // need to re-link
+                        // Preserve link ordering
                         //
-                        if (numChildren > 2)
+                        newSet.Sort(delegate (SceneObjectPart a, SceneObjectPart b)
                         {
-                            // Remove old root
-                            //
-                            if (newSet.Contains(root))
-                                newSet.Remove(root);
-
-                            // Preserve link ordering
-                            //
-                            newSet.Sort(delegate (SceneObjectPart a, SceneObjectPart b)
-                            {
-                                return a.LinkNum.CompareTo(b.LinkNum);
-                            });
+                            return a.LinkNum.CompareTo(b.LinkNum);
+                        });
 
-                            // Determine new root
-                            //
-                            SceneObjectPart newRoot = newSet[0];
-                            newSet.RemoveAt(0);
+                        // Determine new root
+                        //
+                        SceneObjectPart newRoot = newSet[0];
+                        newSet.RemoveAt(0);
 
                             foreach (SceneObjectPart newChild in newSet)
                                 newChild.ClearUpdateSchedule();
 
-                            LinkObjects(newRoot, newSet);
-                            if (!affectedGroups.Contains(newRoot.ParentGroup))
-                                affectedGroups.Add(newRoot.ParentGroup);
-                        }
+                        newRoot.ParentGroup.areUpdatesSuspended = true;
+                        LinkObjects(newRoot, newSet);
+                        if (!affectedGroups.Contains(newRoot.ParentGroup))
+                            affectedGroups.Add(newRoot.ParentGroup);
                     }
                 }
 
@@ -1812,8 +1921,14 @@ namespace OpenSim.Region.Framework.Scenes
                 //
                 foreach (SceneObjectGroup g in affectedGroups)
                 {
+                    // Child prims that have been unlinked and deleted will
+                    // return unless the root is deleted. This will remove them
+                    // from the database. They will be rewritten immediately,
+                    // minus the rows for the unlinked child prims.
+                    m_parentScene.SimulationDataService.RemoveObject(g.UUID, m_parentScene.RegionInfo.RegionID);
                     g.TriggerScriptChangedEvent(Changed.LINK);
                     g.HasGroupChanged = true; // Persist
+                    g.areUpdatesSuspended = false;
                     g.ScheduleGroupForFullUpdate();
                 }
             }
@@ -1931,9 +2046,6 @@ namespace OpenSim.Region.Framework.Scenes
                                 child.ApplyNextOwnerPermissions();
                             }
                         }
-
-                        copy.RootPart.ObjectSaleType = 0;
-                        copy.RootPart.SalePrice = 10;
                     }
 
                     // FIXME: This section needs to be refactored so that it just calls AddSceneObject()