1 files changed, 401 insertions, 130 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 0e5a7d2..b288c8a 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -93,6 +93,7 @@ namespace OpenSim.Region.Framework.Scenes
         // TODO: need to figure out how allow client agents but deny
         // root agents when ACL denies access to root agent
         public bool m_strictAccessControl = true;
+        public bool m_seeIntoBannedRegion = false;
         public int MaxUndoCount = 5;
         // Using this for RegionReady module to prevent LoginsDisabled from changing under our feet;
         public bool LoginLock = false;
@@ -108,12 +109,14 @@ namespace OpenSim.Region.Framework.Scenes
 
         protected int m_splitRegionID;
         protected Timer m_restartWaitTimer = new Timer();
+        protected Timer m_timerWatchdog = new Timer();
         protected List<RegionInfo> m_regionRestartNotifyList = new List<RegionInfo>();
         protected List<RegionInfo> m_neighbours = new List<RegionInfo>();
         protected string m_simulatorVersion = "OpenSimulator Server";
         protected ModuleLoader m_moduleLoader;
         protected AgentCircuitManager m_authenticateHandler;
         protected SceneCommunicationService m_sceneGridService;
+        protected ISnmpModule m_snmpService = null;
 
         protected ISimulationDataService m_SimulationDataService;
         protected IEstateDataService m_EstateDataService;
@@ -170,7 +173,7 @@ namespace OpenSim.Region.Framework.Scenes
         private int m_update_events = 1;
         private int m_update_backup = 200;
         private int m_update_terrain = 50;
-//        private int m_update_land = 1;
+        private int m_update_land = 10;
         private int m_update_coarse_locations = 50;
 
         private int frameMS;
@@ -184,14 +187,17 @@ namespace OpenSim.Region.Framework.Scenes
         private int landMS;
         private int lastCompletedFrame;
 
+        public bool CombineRegions = false;
         private bool m_physics_enabled = true;
         private bool m_scripts_enabled = true;
         private string m_defaultScriptEngine;
         private int m_LastLogin;
-        private Thread HeartbeatThread;
+        private Thread HeartbeatThread = null;
         private volatile bool shuttingdown;
 
         private int m_lastUpdate;
+        private int m_lastIncoming;
+        private int m_lastOutgoing;
         private bool m_firstHeartbeat = true;
 
         private object m_deleting_scene_object = new object();
@@ -244,6 +250,19 @@ namespace OpenSim.Region.Framework.Scenes
             get { return m_sceneGridService; }
         }
 
+        public ISnmpModule SnmpService
+        {
+            get
+            {
+                if (m_snmpService == null)
+                {
+                    m_snmpService = RequestModuleInterface<ISnmpModule>();
+                }
+
+                return m_snmpService;
+            }
+        }
+
         public ISimulationDataService SimulationDataService
         {
             get
@@ -572,7 +591,10 @@ namespace OpenSim.Region.Framework.Scenes
             m_regInfo = regInfo;
             m_regionHandle = m_regInfo.RegionHandle;
             m_regionName = m_regInfo.RegionName;
+            m_datastore = m_regInfo.DataStore;
             m_lastUpdate = Util.EnvironmentTickCount();
+            m_lastIncoming = 0;
+            m_lastOutgoing = 0;
 
             m_physicalPrim = physicalPrim;
             m_seeIntoRegionFromNeighbor = SeeIntoRegionFromNeighbor;
@@ -704,9 +726,10 @@ namespace OpenSim.Region.Framework.Scenes
                 //Animation states
                 m_useFlySlow = startupConfig.GetBoolean("enableflyslow", false);
                 // TODO: Change default to true once the feature is supported
-                m_usePreJump = startupConfig.GetBoolean("enableprejump", false);
-
+                m_usePreJump = startupConfig.GetBoolean("enableprejump", true);
                 m_maxNonphys = startupConfig.GetFloat("NonPhysicalPrimMax", m_maxNonphys);
+
+                m_log.DebugFormat("[SCENE]: prejump is {0}", m_usePreJump ? "ON" : "OFF");
                 if (RegionInfo.NonphysPrimMax > 0)
                 {
                     m_maxNonphys = RegionInfo.NonphysPrimMax;
@@ -738,6 +761,7 @@ namespace OpenSim.Region.Framework.Scenes
                 m_persistAfter *= 10000000;
 
                 m_defaultScriptEngine = startupConfig.GetString("DefaultScriptEngine", "XEngine");
+                m_log.InfoFormat("[SCENE]: Default script engine {0}", m_defaultScriptEngine);
 
                 IConfig packetConfig = m_config.Configs["PacketPool"];
                 if (packetConfig != null)
@@ -747,6 +771,8 @@ namespace OpenSim.Region.Framework.Scenes
                 }
 
                 m_strictAccessControl = startupConfig.GetBoolean("StrictAccessControl", m_strictAccessControl);
+                m_seeIntoBannedRegion = startupConfig.GetBoolean("SeeIntoBannedRegion", m_seeIntoBannedRegion);
+                CombineRegions = startupConfig.GetBoolean("CombineContiguousRegions", false);
 
                 m_generateMaptiles = startupConfig.GetBoolean("GenerateMaptiles", true);
                 if (m_generateMaptiles)
@@ -771,9 +797,9 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
             }
-            catch
+            catch (Exception e)
             {
-                m_log.Warn("[SCENE]: Failed to load StartupConfig");
+                m_log.Error("[SCENE]: Failed to load StartupConfig: " + e.ToString());
             }
 
             #endregion Region Config
@@ -1150,7 +1176,9 @@ namespace OpenSim.Region.Framework.Scenes
             //m_heartbeatTimer.Elapsed += new ElapsedEventHandler(Heartbeat);
             if (HeartbeatThread != null)
             {
+                m_log.ErrorFormat("[SCENE]: Restarting heartbeat thread because it hasn't reported in in region {0}", RegionInfo.RegionName);
                 HeartbeatThread.Abort();
+                Watchdog.RemoveThread(HeartbeatThread.ManagedThreadId);
                 HeartbeatThread = null;
             }
             m_lastUpdate = Util.EnvironmentTickCount();
@@ -1193,9 +1221,6 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 while (!shuttingdown)
                     Update();
-
-                m_lastUpdate = Util.EnvironmentTickCount();
-                m_firstHeartbeat = false;
             }
             catch (ThreadAbortException)
             {
@@ -1278,56 +1303,60 @@ namespace OpenSim.Region.Framework.Scenes
                     tempOnRezMS = Util.EnvironmentTickCountSubtract(tmpTempOnRezMS);
                 }
 
-                if (RegionStatus != RegionStatus.SlaveScene)
+                if (Frame % m_update_events == 0)
                 {
-                    if (Frame % m_update_events == 0)
-                    {
-                        int evMS = Util.EnvironmentTickCount();
-                        UpdateEvents();
-                        eventMS = Util.EnvironmentTickCountSubtract(evMS); ;
-                    }
-
-                    if (Frame % m_update_backup == 0)
-                    {
-                        int backMS = Util.EnvironmentTickCount();
-                        UpdateStorageBackup();
-                        backupMS = Util.EnvironmentTickCountSubtract(backMS);
-                    }
+                    int evMS = Util.EnvironmentTickCount();
+                    UpdateEvents();
+                    eventMS = Util.EnvironmentTickCountSubtract(evMS); ;
+                }
 
-                    if (Frame % m_update_terrain == 0)
-                    {
-                        int terMS = Util.EnvironmentTickCount();
-                        UpdateTerrain();
-                        terrainMS = Util.EnvironmentTickCountSubtract(terMS);
-                    }
+                   // if (Frame % m_update_land == 0)
+                   // {
+                   //     int ldMS = Util.EnvironmentTickCount();
+                   //     UpdateLand();
+                   //     landMS = Util.EnvironmentTickCountSubtract(ldMS);
+                   // }
 
-                    //if (Frame % m_update_land == 0)
-                    //{
-                    //    int ldMS = Util.EnvironmentTickCount();
-                    //    UpdateLand();
-                    //    landMS = Util.EnvironmentTickCountSubtract(ldMS);
-                    //}
+                if (Frame % m_update_backup == 0)
+                {
+                    int backMS = Util.EnvironmentTickCount();
+                    UpdateStorageBackup();
+                    backupMS = Util.EnvironmentTickCountSubtract(backMS);
+                }
 
-                    frameMS = Util.EnvironmentTickCountSubtract(tmpFrameMS);
-                    otherMS = tempOnRezMS + eventMS + backupMS + terrainMS + landMS;
-                    lastCompletedFrame = Util.EnvironmentTickCount();
-
-                    // if (Frame%m_update_avatars == 0)
-                    //   UpdateInWorldTime();
-                    StatsReporter.AddPhysicsFPS(physicsFPS);
-                    StatsReporter.AddTimeDilation(TimeDilation);
-                    StatsReporter.AddFPS(1);
-                    StatsReporter.SetRootAgents(m_sceneGraph.GetRootAgentCount());
-                    StatsReporter.SetChildAgents(m_sceneGraph.GetChildAgentCount());
-                    StatsReporter.SetObjects(m_sceneGraph.GetTotalObjectsCount());
-                    StatsReporter.SetActiveObjects(m_sceneGraph.GetActiveObjectsCount());
-                    StatsReporter.addFrameMS(frameMS);
-                    StatsReporter.addPhysicsMS(physicsMS + physicsMS2);
-                    StatsReporter.addOtherMS(otherMS);
-                    StatsReporter.SetActiveScripts(m_sceneGraph.GetActiveScriptsCount());
-                    StatsReporter.addScriptLines(m_sceneGraph.GetScriptLPS());
+                if (Frame % m_update_terrain == 0)
+                {
+                    int terMS = Util.EnvironmentTickCount();
+                    UpdateTerrain();
+                    terrainMS = Util.EnvironmentTickCountSubtract(terMS);
                 }
 
+                //if (Frame % m_update_land == 0)
+                //{
+                //    int ldMS = Util.EnvironmentTickCount();
+                //    UpdateLand();
+                //    landMS = Util.EnvironmentTickCountSubtract(ldMS);
+                //}
+
+                frameMS = Util.EnvironmentTickCountSubtract(tmpFrameMS);
+                otherMS = tempOnRezMS + eventMS + backupMS + terrainMS + landMS;
+                lastCompletedFrame = Util.EnvironmentTickCount();
+
+                // if (Frame%m_update_avatars == 0)
+                //   UpdateInWorldTime();
+                StatsReporter.AddPhysicsFPS(physicsFPS);
+                StatsReporter.AddTimeDilation(TimeDilation);
+                StatsReporter.AddFPS(1);
+                StatsReporter.SetRootAgents(m_sceneGraph.GetRootAgentCount());
+                StatsReporter.SetChildAgents(m_sceneGraph.GetChildAgentCount());
+                StatsReporter.SetObjects(m_sceneGraph.GetTotalObjectsCount());
+                StatsReporter.SetActiveObjects(m_sceneGraph.GetActiveObjectsCount());
+                StatsReporter.addFrameMS(frameMS);
+                StatsReporter.addPhysicsMS(physicsMS + physicsMS2);
+                StatsReporter.addOtherMS(otherMS);
+                StatsReporter.SetActiveScripts(m_sceneGraph.GetActiveScriptsCount());
+                StatsReporter.addScriptLines(m_sceneGraph.GetScriptLPS());
+
                 if (LoginsDisabled && Frame == 20)
                 {
                     // In 99.9% of cases it is a bad idea to manually force garbage collection. However,
@@ -1388,12 +1417,16 @@ namespace OpenSim.Region.Framework.Scenes
             maintc = Util.EnvironmentTickCountSubtract(maintc);
             maintc = (int)(m_timespan * 1000) - maintc;
 
+
+            m_lastUpdate = Util.EnvironmentTickCount();
+            m_firstHeartbeat = false;
+
             if (maintc > 0)
                 Thread.Sleep(maintc);
 
             // Tell the watchdog that this thread is still alive
             Watchdog.UpdateThread();
-        }        
+        }
 
         public void AddGroupTarget(SceneObjectGroup grp)
         {
@@ -1409,9 +1442,9 @@ namespace OpenSim.Region.Framework.Scenes
 
         private void CheckAtTargets()
         {
-            Dictionary<UUID, SceneObjectGroup>.ValueCollection objs;
+            List<SceneObjectGroup> objs = new List<SceneObjectGroup>();
             lock (m_groupsWithTargets)
-                objs = m_groupsWithTargets.Values;
+                objs = new List<SceneObjectGroup>(m_groupsWithTargets.Values);
 
             foreach (SceneObjectGroup entry in objs)
                 entry.checkAtTargets();
@@ -1731,14 +1764,24 @@ namespace OpenSim.Region.Framework.Scenes
         /// <returns></returns>
         public Vector3 GetNewRezLocation(Vector3 RayStart, Vector3 RayEnd, UUID RayTargetID, Quaternion rot, byte bypassRayCast, byte RayEndIsIntersection, bool frontFacesOnly, Vector3 scale, bool FaceCenter)
         {
+        
+            float wheight = (float)RegionInfo.RegionSettings.WaterHeight;
+            Vector3 wpos = Vector3.Zero;
+            // Check for water surface intersection from above
+            if ( (RayStart.Z > wheight) && (RayEnd.Z < wheight) )
+            {
+                float ratio = (RayStart.Z - wheight) / (RayStart.Z - RayEnd.Z);
+                wpos.X = RayStart.X - (ratio * (RayStart.X - RayEnd.X));
+                wpos.Y = RayStart.Y - (ratio * (RayStart.Y - RayEnd.Y));
+                wpos.Z = wheight;
+            }                
+        
             Vector3 pos = Vector3.Zero;
             if (RayEndIsIntersection == (byte)1)
             {
                 pos = RayEnd;
-                return pos;
             }
-
-            if (RayTargetID != UUID.Zero)
+            else if (RayTargetID != UUID.Zero)
             {
                 SceneObjectPart target = GetSceneObjectPart(RayTargetID);
 
@@ -1760,7 +1803,7 @@ namespace OpenSim.Region.Framework.Scenes
                     EntityIntersection ei = target.TestIntersectionOBB(NewRay, Quaternion.Identity, frontFacesOnly, FaceCenter);
 
                     // Un-comment out the following line to Get Raytrace results printed to the console.
-                   // m_log.Info("[RAYTRACERESULTS]: Hit:" + ei.HitTF.ToString() + " Point: " + ei.ipoint.ToString() + " Normal: " + ei.normal.ToString());
+                    // m_log.Info("[RAYTRACERESULTS]: Hit:" + ei.HitTF.ToString() + " Point: " + ei.ipoint.ToString() + " Normal: " + ei.normal.ToString());
                     float ScaleOffset = 0.5f;
 
                     // If we hit something
@@ -1783,13 +1826,10 @@ namespace OpenSim.Region.Framework.Scenes
                         //pos.Z -= 0.25F; 
                        
                     }
-
-                    return pos;
                 }
                 else
                 {
                     // We don't have a target here, so we're going to raytrace all the objects in the scene.
-
                     EntityIntersection ei = m_sceneGraph.GetClosestIntersectingPrim(new Ray(AXOrigin, AXdirection), true, false);
 
                     // Un-comment the following line to print the raytrace results to the console.
@@ -1798,13 +1838,12 @@ namespace OpenSim.Region.Framework.Scenes
                     if (ei.HitTF)
                     {
                         pos = new Vector3(ei.ipoint.X, ei.ipoint.Y, ei.ipoint.Z);
-                    } else
+                    } 
+                    else
                     {
                         // fall back to our stupid functionality
                         pos = RayEnd;
                     }
-
-                    return pos;
                 }
             }
             else
@@ -1815,8 +1854,12 @@ namespace OpenSim.Region.Framework.Scenes
                 //increase height so its above the ground.
                 //should be getting the normal of the ground at the rez point and using that?
                 pos.Z += scale.Z / 2f;
-                return pos;
+//                return pos;
             }
+            
+            // check against posible water intercept
+            if (wpos.Z > pos.Z) pos = wpos;
+            return pos;
         }
 
 
@@ -1900,7 +1943,10 @@ namespace OpenSim.Region.Framework.Scenes
         public bool AddRestoredSceneObject(
             SceneObjectGroup sceneObject, bool attachToBackup, bool alreadyPersisted, bool sendClientUpdates)
         {
-            return m_sceneGraph.AddRestoredSceneObject(sceneObject, attachToBackup, alreadyPersisted, sendClientUpdates);
+            bool result =  m_sceneGraph.AddRestoredSceneObject(sceneObject, attachToBackup, alreadyPersisted, sendClientUpdates);
+            if (result)
+                sceneObject.IsDeleted = false;
+            return result;
         }
         
         /// <summary>
@@ -1990,6 +2036,15 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void DeleteAllSceneObjects()
         {
+            DeleteAllSceneObjects(false);
+        }
+
+        /// <summary>
+        /// Delete every object from the scene.  This does not include attachments worn by avatars.
+        /// </summary>
+        public void DeleteAllSceneObjects(bool exceptNoCopy)
+        {
+            List<SceneObjectGroup> toReturn = new List<SceneObjectGroup>();
             lock (Entities)
             {
                 EntityBase[] entities = Entities.GetEntities();
@@ -1998,11 +2053,24 @@ namespace OpenSim.Region.Framework.Scenes
                     if (e is SceneObjectGroup)
                     {
                         SceneObjectGroup sog = (SceneObjectGroup)e;
-                        if (!sog.IsAttachment)
-                            DeleteSceneObject((SceneObjectGroup)e, false);
+                        if (sog != null && !sog.IsAttachment)
+                        {
+                            if (!exceptNoCopy || ((sog.GetEffectivePermissions() & (uint)PermissionMask.Copy) != 0))
+                            {
+                                DeleteSceneObject((SceneObjectGroup)e, false);
+                            }
+                            else
+                            {
+                                toReturn.Add((SceneObjectGroup)e);   
+                            }
+                        }
                     }
                 }
             }
+            if (toReturn.Count > 0)
+            {
+                returnObjects(toReturn.ToArray(), UUID.Zero);
+            }
         }
 
         /// <summary>
@@ -2051,6 +2119,8 @@ namespace OpenSim.Region.Framework.Scenes
             }
 
             group.DeleteGroupFromScene(silent);
+            if (!silent)
+                SendKillObject(new List<uint>() { group.LocalId });
 
 //            m_log.DebugFormat("[SCENE]: Exit DeleteSceneObject() for {0} {1}", group.Name, group.UUID);            
         }
@@ -2405,10 +2475,17 @@ namespace OpenSim.Region.Framework.Scenes
         /// <returns>True if the SceneObjectGroup was added, False if it was not</returns>
         public bool AddSceneObject(SceneObjectGroup sceneObject)
         {
+            if (sceneObject.OwnerID == UUID.Zero)
+            {
+                m_log.ErrorFormat("[SCENE]: Owner ID for {0} was zero", sceneObject.UUID);
+                return false;
+            }
+
             // If the user is banned, we won't let any of their objects
             // enter. Period.
             //
-            if (m_regInfo.EstateSettings.IsBanned(sceneObject.OwnerID))
+            int flags = GetUserFlags(sceneObject.OwnerID);
+            if (m_regInfo.EstateSettings.IsBanned(sceneObject.OwnerID, flags))
             {
                 m_log.Info("[INTERREGION]: Denied prim crossing for " +
                         "banned avatar");
@@ -2455,12 +2532,23 @@ namespace OpenSim.Region.Framework.Scenes
                 }
                 else
                 {
+                    m_log.DebugFormat("[SCENE]: Attachment {0} arrived and scene presence was not found, setting to temp", sceneObject.UUID);
                     RootPrim.RemFlag(PrimFlags.TemporaryOnRez);
                     RootPrim.AddFlag(PrimFlags.TemporaryOnRez);
                 }
+                if (sceneObject.OwnerID == UUID.Zero)
+                {
+                    m_log.ErrorFormat("[SCENE]: Owner ID for {0} was zero after attachment processing. BUG!", sceneObject.UUID);
+                    return false;
+                }
             }
             else
             {
+                if (sceneObject.OwnerID == UUID.Zero)
+                {
+                    m_log.ErrorFormat("[SCENE]: Owner ID for non-attachment {0} was zero", sceneObject.UUID);
+                    return false;
+                }
                 AddRestoredSceneObject(sceneObject, true, false);
 
                 if (!Permissions.CanObjectEntry(sceneObject.UUID,
@@ -2490,6 +2578,24 @@ namespace OpenSim.Region.Framework.Scenes
             return 2; // StateSource.PrimCrossing
         }
 
+        public int GetUserFlags(UUID user)
+        {
+            //Unfortunately the SP approach means that the value is cached until region is restarted
+            /*
+            ScenePresence sp;
+            if (TryGetScenePresence(user, out sp))
+            {
+                return sp.UserFlags;
+            }
+            else
+            {
+             */
+                UserAccount uac = UserAccountService.GetUserAccount(RegionInfo.ScopeID, user);
+                if (uac == null)
+                    return 0;
+                return uac.UserFlags;
+            //}
+        }
         #endregion
 
         #region Add/Remove Avatar Methods
@@ -2511,6 +2617,7 @@ namespace OpenSim.Region.Framework.Scenes
                        (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaLogin) != 0;
 
             CheckHeartbeat();
+            ScenePresence presence;
 
             if (GetScenePresence(client.AgentId) == null) // ensure there is no SP here
             {
@@ -2544,7 +2651,14 @@ namespace OpenSim.Region.Framework.Scenes
 
                 EventManager.TriggerOnNewClient(client);
                 if (vialogin)
+                {
                     EventManager.TriggerOnClientLogin(client);
+
+                    // Send initial parcel data
+                    Vector3 pos = createdSp.AbsolutePosition;
+                    ILandObject land = LandChannel.GetLandObject(pos.X, pos.Y);
+                    land.SendLandUpdateToClient(client);
+                }
             }
         }
 
@@ -2633,19 +2747,12 @@ namespace OpenSim.Region.Framework.Scenes
                     // and the scene presence and the client, if they exist
                     try
                     {
-                        // We need to wait for the client to make UDP contact first.
-                        // It's the UDP contact that creates the scene presence
-                        ScenePresence sp = WaitGetScenePresence(agentID);
+                        ScenePresence sp = GetScenePresence(agentID);
+                        PresenceService.LogoutAgent(sp.ControllingClient.SessionId);
+                        
                         if (sp != null)
-                        {
-                            PresenceService.LogoutAgent(sp.ControllingClient.SessionId);
-
                             sp.ControllingClient.Close();
-                        }
-                        else
-                        {
-                            m_log.WarnFormat("[SCENE]: Could not find scene presence for {0}", agentID);
-                        }
+
                         // BANG! SLASH!
                         m_authenticateHandler.RemoveCircuit(agentID);
 
@@ -2745,6 +2852,7 @@ namespace OpenSim.Region.Framework.Scenes
             client.OnFetchInventory += m_asyncInventorySender.HandleFetchInventory;
             client.OnUpdateInventoryItem += UpdateInventoryItemAsset;
             client.OnCopyInventoryItem += CopyInventoryItem;
+            client.OnMoveItemsAndLeaveCopy += MoveInventoryItemsLeaveCopy;
             client.OnMoveInventoryItem += MoveInventoryItem;
             client.OnRemoveInventoryItem += RemoveInventoryItem;
             client.OnRemoveInventoryFolder += RemoveInventoryFolder;
@@ -2922,15 +3030,16 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <param name="agentId">The avatar's Unique ID</param>
         /// <param name="client">The IClientAPI for the client</param>
-        public virtual void TeleportClientHome(UUID agentId, IClientAPI client)
+        public virtual bool TeleportClientHome(UUID agentId, IClientAPI client)
         {
             if (m_teleportModule != null)
-                m_teleportModule.TeleportHome(agentId, client);
+                return m_teleportModule.TeleportHome(agentId, client);
             else
             {
                 m_log.DebugFormat("[SCENE]: Unable to teleport user home: no AgentTransferModule is active");
                 client.SendTeleportFailed("Unable to perform teleports on this simulator.");
             }
+            return false;
         }
 
         /// <summary>
@@ -3022,6 +3131,16 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="flags"></param>
         public virtual void SetHomeRezPoint(IClientAPI remoteClient, ulong regionHandle, Vector3 position, Vector3 lookAt, uint flags)
         {
+            //Add half the avatar's height so that the user doesn't fall through prims
+            ScenePresence presence;
+            if (TryGetScenePresence(remoteClient.AgentId, out presence))
+            {
+                if (presence.Appearance != null)
+                {
+                    position.Z = position.Z + (presence.Appearance.AvatarHeight / 2);
+                }
+            }
+
             if (GridUserService != null && GridUserService.SetHome(remoteClient.AgentId.ToString(), RegionInfo.RegionID, position, lookAt))
                 // FUBAR ALERT: this needs to be "Home position set." so the viewer saves a home-screenshot.
                 m_dialogModule.SendAlertToUser(remoteClient, "Home position set.");
@@ -3096,8 +3215,9 @@ namespace OpenSim.Region.Framework.Scenes
                         regions.Remove(RegionInfo.RegionHandle);
                         m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
                     }
-
+                    m_log.Debug("[Scene] Beginning ClientClosed");
                     m_eventManager.TriggerClientClosed(agentID, this);
+                    m_log.Debug("[Scene] Finished ClientClosed");
                 }
                 catch (NullReferenceException)
                 {
@@ -3105,7 +3225,12 @@ namespace OpenSim.Region.Framework.Scenes
                     // Avatar is already disposed :/
                 }
 
+                m_log.Debug("[Scene] Beginning OnRemovePresence");
                 m_eventManager.TriggerOnRemovePresence(agentID);
+                m_log.Debug("[Scene] Finished OnRemovePresence");
+
+                if (AttachmentsModule != null && !avatar.IsChildAgent && avatar.PresenceType != PresenceType.Npc)
+                    AttachmentsModule.SaveChangedAttachments(avatar);
 
                 if (AttachmentsModule != null && !avatar.IsChildAgent && avatar.PresenceType != PresenceType.Npc)
                     AttachmentsModule.SaveChangedAttachments(avatar);
@@ -3114,7 +3239,7 @@ namespace OpenSim.Region.Framework.Scenes
                     delegate(IClientAPI client)
                     {
                         //We can safely ignore null reference exceptions.  It means the avatar is dead and cleaned up anyway
-                        try { client.SendKillObject(avatar.RegionHandle, avatar.LocalId); }
+                        try { client.SendKillObject(avatar.RegionHandle, new List<uint>() { avatar.LocalId}); }
                         catch (NullReferenceException) { }
                     });
 
@@ -3125,8 +3250,11 @@ namespace OpenSim.Region.Framework.Scenes
                 }
 
                 // Remove the avatar from the scene
+                m_log.Debug("[Scene] Begin RemoveScenePresence");
                 m_sceneGraph.RemoveScenePresence(agentID);
+                m_log.Debug("[Scene] Finished RemoveScenePresence. Removing the client manager");
                 m_clientManager.Remove(agentID);
+                m_log.Debug("[Scene] Removed the client manager. Firing avatar.close");
 
                 try
                 {
@@ -3140,9 +3268,10 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     m_log.Error("[SCENE] Scene.cs:RemoveClient exception: " + e.ToString());
                 }
-
+                m_log.Debug("[Scene] Done. Firing RemoveCircuit");
                 m_authenticateHandler.RemoveCircuit(avatar.ControllingClient.CircuitCode);
 //                CleanDroppedAttachments();
+                m_log.Debug("[Scene] The avatar has left the building");
                 //m_log.InfoFormat("[SCENE] Memory pre  GC {0}", System.GC.GetTotalMemory(false));
                 //m_log.InfoFormat("[SCENE] Memory post GC {0}", System.GC.GetTotalMemory(true));
             }
@@ -3173,19 +3302,24 @@ namespace OpenSim.Region.Framework.Scenes
 
         #region Entities
 
-        public void SendKillObject(uint localID)
+        public void SendKillObject(List<uint> localIDs)
         {
-            SceneObjectPart part = GetSceneObjectPart(localID);
-            if (part != null) // It is a prim
+            List<uint> deleteIDs = new List<uint>();
+
+            foreach (uint localID in localIDs)
             {
-                if (!part.ParentGroup.IsDeleted) // Valid
+                SceneObjectPart part = GetSceneObjectPart(localID);
+                if (part != null) // It is a prim
                 {
-                    if (part.ParentGroup.RootPart != part) // Child part
-                        return;
+                    if (part.ParentGroup != null && !part.ParentGroup.IsDeleted) // Valid
+                    {
+                        if (part.ParentGroup.RootPart != part) // Child part
+                            continue;
+                    }
                 }
+                deleteIDs.Add(localID);
             }
-
-            ForEachClient(delegate(IClientAPI client) { client.SendKillObject(m_regionHandle, localID); });
+            ForEachClient(delegate(IClientAPI client) { client.SendKillObject(m_regionHandle, deleteIDs); });
         }
 
         #endregion
@@ -3203,7 +3337,6 @@ namespace OpenSim.Region.Framework.Scenes
             //m_sceneGridService.OnChildAgentUpdate += IncomingChildAgentDataUpdate;
             //m_sceneGridService.OnRemoveKnownRegionFromAvatar += HandleRemoveKnownRegionsFromAvatar;
             m_sceneGridService.OnLogOffUser += HandleLogOffUserFromGrid;
-            m_sceneGridService.KiPrimitive += SendKillObject;
             m_sceneGridService.OnGetLandData += GetLandData;
         }
 
@@ -3212,7 +3345,6 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void UnRegisterRegionWithComms()
         {
-            m_sceneGridService.KiPrimitive -= SendKillObject;
             m_sceneGridService.OnLogOffUser -= HandleLogOffUserFromGrid;
             //m_sceneGridService.OnRemoveKnownRegionFromAvatar -= HandleRemoveKnownRegionsFromAvatar;
             //m_sceneGridService.OnChildAgentUpdate -= IncomingChildAgentDataUpdate;
@@ -3292,13 +3424,16 @@ namespace OpenSim.Region.Framework.Scenes
                 sp = null;
             }
 
-            ILandObject land = LandChannel.GetLandObject(agent.startpos.X, agent.startpos.Y);
 
             //On login test land permisions
             if (vialogin)
             {
-                if (land != null && !TestLandRestrictions(agent, land, out reason))
+                IUserAccountCacheModule cache = RequestModuleInterface<IUserAccountCacheModule>();
+                if (cache != null)
+                    cache.Remove(agent.firstname + " " + agent.lastname);
+                if (!TestLandRestrictions(agent.AgentID, out reason, ref agent.startpos.X, ref agent.startpos.Y))
                 {
+                    m_log.DebugFormat("[CONNECTION BEGIN]: Denying access to {0} due to no land access", agent.AgentID.ToString());
                     return false;
                 }
             }
@@ -3321,8 +3456,13 @@ namespace OpenSim.Region.Framework.Scenes
 
                 try
                 {
-                    if (!AuthorizeUser(agent, out reason))
-                        return false;
+                    // Always check estate if this is a login. Always
+                    // check if banned regions are to be blacked out.
+                    if (vialogin || (!m_seeIntoBannedRegion))
+                    {
+                        if (!AuthorizeUser(agent, out reason))
+                            return false;
+                    }
                 }
                 catch (Exception e)
                 {
@@ -3424,6 +3564,8 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
                 // Honor parcel landing type and position.
+                /*
+                ILandObject land = LandChannel.GetLandObject(agent.startpos.X, agent.startpos.Y);
                 if (land != null)
                 {
                     if (land.LandData.LandingType == (byte)1 && land.LandData.UserLocation != Vector3.Zero)
@@ -3431,26 +3573,34 @@ namespace OpenSim.Region.Framework.Scenes
                         agent.startpos = land.LandData.UserLocation;
                     }
                 }
+                */// This is now handled properly in ScenePresence.MakeRootAgent
             }
 
             return true;
         }
 
-        private bool TestLandRestrictions(AgentCircuitData agent, ILandObject land,  out string reason)
+        private bool TestLandRestrictions(UUID agentID, out string reason, ref float posX, ref float posY)
         {
-      
-            bool banned = land.IsBannedFromLand(agent.AgentID);
-            bool restricted = land.IsRestrictedFromLand(agent.AgentID);
+            reason = String.Empty;
+            if (Permissions.IsGod(agentID))
+                return true;
+
+            ILandObject land = LandChannel.GetLandObject(posX, posY);
+            if (land == null)
+                return false;
+
+            bool banned = land.IsBannedFromLand(agentID);
+            bool restricted = land.IsRestrictedFromLand(agentID);
 
             if (banned || restricted)
             {
-                ILandObject nearestParcel = GetNearestAllowedParcel(agent.AgentID, agent.startpos.X, agent.startpos.Y);
+                ILandObject nearestParcel = GetNearestAllowedParcel(agentID, posX, posY);
                 if (nearestParcel != null)
                 {
                     //Move agent to nearest allowed
                     Vector3 newPosition = GetParcelCenterAtGround(nearestParcel);
-                    agent.startpos.X = newPosition.X;
-                    agent.startpos.Y = newPosition.Y;
+                    posX = newPosition.X;
+                    posY = newPosition.Y;
                 }
                 else
                 {
@@ -3512,7 +3662,7 @@ namespace OpenSim.Region.Framework.Scenes
 
             if (!m_strictAccessControl) return true;
             if (Permissions.IsGod(agent.AgentID)) return true;
-                      
+
             if (AuthorizationService != null)
             {
                 if (!AuthorizationService.IsAuthorizedForRegion(
@@ -3520,14 +3670,14 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     m_log.WarnFormat("[CONNECTION BEGIN]: Denied access to: {0} ({1} {2}) at {3} because the user does not have access to the region",
                                      agent.AgentID, agent.firstname, agent.lastname, RegionInfo.RegionName);
-                    
+
                     return false;
                 }
             }
 
             if (m_regInfo.EstateSettings != null)
             {
-                if (m_regInfo.EstateSettings.IsBanned(agent.AgentID))
+                if (m_regInfo.EstateSettings.IsBanned(agent.AgentID,0))
                 {
                     m_log.WarnFormat("[CONNECTION BEGIN]: Denied access to: {0} ({1} {2}) at {3} because the user is on the banlist",
                                      agent.AgentID, agent.firstname, agent.lastname, RegionInfo.RegionName);
@@ -3717,6 +3867,13 @@ namespace OpenSim.Region.Framework.Scenes
 
             // We have to wait until the viewer contacts this region after receiving EAC.
             // That calls AddNewClient, which finally creates the ScenePresence
+            int flags = GetUserFlags(cAgentData.AgentID);
+            if (m_regInfo.EstateSettings.IsBanned(cAgentData.AgentID, flags))
+            {
+                m_log.DebugFormat("[SCENE]: Denying root agent entry to {0}: banned", cAgentData.AgentID);
+                return false;
+            }
+
             ILandObject nearestParcel = GetNearestAllowedParcel(cAgentData.AgentID, Constants.RegionSize / 2, Constants.RegionSize / 2);
             if (nearestParcel == null)
             {
@@ -3732,7 +3889,6 @@ namespace OpenSim.Region.Framework.Scenes
                     return false;
             }
 
-
             ScenePresence childAgentUpdate = WaitGetScenePresence(cAgentData.AgentID);
 
             if (childAgentUpdate != null)
@@ -3799,12 +3955,22 @@ namespace OpenSim.Region.Framework.Scenes
             return false;
         }
 
+        public bool IncomingCloseAgent(UUID agentID)
+        {
+            return IncomingCloseAgent(agentID, false);
+        }
+
+        public bool IncomingCloseChildAgent(UUID agentID)
+        {
+            return IncomingCloseAgent(agentID, true);
+        }
+
         /// <summary>
         /// Tell a single agent to disconnect from the region.
         /// </summary>
-        /// <param name="regionHandle"></param>
         /// <param name="agentID"></param>
-        public bool IncomingCloseAgent(UUID agentID)
+        /// <param name="childOnly"></param>
+        public bool IncomingCloseAgent(UUID agentID, bool childOnly)
         {
             //m_log.DebugFormat("[SCENE]: Processing incoming close agent for {0}", agentID);
 
@@ -3816,7 +3982,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                    m_sceneGraph.removeUserCount(false);
                 }
-                else
+                else if (!childOnly)
                 {
                    m_sceneGraph.removeUserCount(true);
                 }
@@ -3832,9 +3998,12 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                     else
                         presence.ControllingClient.SendShutdownConnectionNotice();
+                    presence.ControllingClient.Close(false);
+                }
+                else if (!childOnly)
+                {
+                    presence.ControllingClient.Close(true);
                 }
-
-                presence.ControllingClient.Close();
                 return true;
             }
 
@@ -4449,34 +4618,66 @@ namespace OpenSim.Region.Framework.Scenes
             SimulationDataService.RemoveObject(uuid, m_regInfo.RegionID);
         }
 
-        public int GetHealth()
+        public int GetHealth(out int flags, out string message)
         {
             // Returns:
             // 1 = sim is up and accepting http requests. The heartbeat has
             // stopped and the sim is probably locked up, but a remote
             // admin restart may succeed
-            //
+            // 
             // 2 = Sim is up and the heartbeat is running. The sim is likely
-            // usable for people within and logins _may_ work
+            // usable for people within
+            //
+            // 3 = Sim is up and one packet thread is running. Sim is
+            // unstable and will not accept new logins
             //
-            // 3 = We have seen a new user enter within the past 4 minutes
+            // 4 = Sim is up and both packet threads are running. Sim is
+            // likely usable
+            //
+            // 5 = We have seen a new user enter within the past 4 minutes
             // which can be seen as positive confirmation of sim health
             //
+
+            flags = 0;
+            message = String.Empty;
+
+            CheckHeartbeat();
+
+            if (m_firstHeartbeat || (m_lastIncoming == 0 && m_lastOutgoing == 0))
+            {
+                // We're still starting
+                // 0 means "in startup", it can't happen another way, since
+                // to get here, we must be able to accept http connections
+                return 0;
+            }
+
             int health=1; // Start at 1, means we're up
 
-            if ((Util.EnvironmentTickCountSubtract(m_lastUpdate)) < 1000)
+            if (Util.EnvironmentTickCountSubtract(m_lastUpdate) < 1000)
+            {
                 health+=1;
-            else
+                flags |= 1;
+            }
+
+            if (Util.EnvironmentTickCountSubtract(m_lastIncoming) < 1000)
+            {
+                health+=1;
+                flags |= 2;
+            }
+
+            if (Util.EnvironmentTickCountSubtract(m_lastOutgoing) < 1000)
+            {
+                health+=1;
+                flags |= 4;
+            }
+
+            if (flags != 7)
                 return health;
 
             // A login in the last 4 mins? We can't be doing too badly
             //
-            if ((Util.EnvironmentTickCountSubtract(m_LastLogin)) < 240000)
+            if (Util.EnvironmentTickCountSubtract(m_LastLogin) < 240000)
                 health++;
-            else
-                return health;
-
-            CheckHeartbeat();
 
             return health;
         }
@@ -4669,7 +4870,7 @@ namespace OpenSim.Region.Framework.Scenes
             if (m_firstHeartbeat)
                 return;
 
-            if (Util.EnvironmentTickCountSubtract(m_lastUpdate) > 2000)
+            if (Util.EnvironmentTickCountSubtract(m_lastUpdate) > 5000)
                 StartTimer();
         }
 
@@ -5118,6 +5319,19 @@ namespace OpenSim.Region.Framework.Scenes
 //            }
 //        }
 
+        public void ThreadAlive(int threadCode)
+        {
+            switch(threadCode)
+            {
+                case 1: // Incoming
+                    m_lastIncoming = Util.EnvironmentTickCount();
+                    break;
+                case 2: // Incoming
+                    m_lastOutgoing = Util.EnvironmentTickCount();
+                    break;
+            }
+        }
+
         // This method is called across the simulation connector to
         // determine if a given agent is allowed in this region
         // AS A ROOT AGENT. Returning false here will prevent them
@@ -5126,6 +5340,14 @@ namespace OpenSim.Region.Framework.Scenes
         // child agent creation, thereby emulating the SL behavior.
         public bool QueryAccess(UUID agentID, Vector3 position, out string reason)
         {
+            reason = "You are banned from the region";
+
+            if (Permissions.IsGod(agentID))
+            {
+                reason = String.Empty;
+                return true;
+            }
+
             int num = m_sceneGraph.GetNumberOfScenePresences();
 
             if (num >= RegionInfo.RegionSettings.AgentLimit)
@@ -5137,11 +5359,60 @@ namespace OpenSim.Region.Framework.Scenes
                 }
             }
 
+            try
+            {
+                if (!AuthorizeUser(GetScenePresence(agentID).ControllingClient.RequestClientInfo(), out reason))
+                {
+                    // m_log.DebugFormat("[SCENE]: Denying access for {0}", agentID);
+                    return false;
+                }
+            }
+            catch
+            {
+                return false;
+            }
+
+            if (position == Vector3.Zero) // Teleport
+            {
+                float posX = 128.0f;
+                float posY = 128.0f;
+
+                if (!TestLandRestrictions(agentID, out reason, ref posX, ref posY))
+                {
+                    // m_log.DebugFormat("[SCENE]: Denying {0} because they are banned on all parcels", agentID);
+                    return false;
+                }
+            }
+            else // Walking
+            {
+                ILandObject land = LandChannel.GetLandObject(position.X, position.Y);
+                if (land == null)
+                    return false;
+
+                bool banned = land.IsBannedFromLand(agentID);
+                bool restricted = land.IsRestrictedFromLand(agentID);
+
+                if (banned || restricted)
+                    return false;
+            }
+
             reason = String.Empty;
             return true;
         }
 
-        /// <summary>
+                public void StartTimerWatchdog()
+        {
+            m_timerWatchdog.Interval = 1000;
+            m_timerWatchdog.Elapsed += TimerWatchdog;
+            m_timerWatchdog.AutoReset = true;
+            m_timerWatchdog.Start();
+        }
+
+        public void TimerWatchdog(object sender, ElapsedEventArgs e)
+        {
+            CheckHeartbeat();
+                }
+
         /// This method deals with movement when an avatar is automatically moving (but this is distinct from the
         /// autopilot that moves an avatar to a sit target!.
         /// </summary>