62 files changed, 4002 insertions, 1259 deletions
diff --git a/OpenSim/ApplicationPlugins/RemoteController/RemoteAdminPlugin.cs b/OpenSim/ApplicationPlugins/RemoteController/RemoteAdminPlugin.cs
index adf7967..b22003c 100644
--- a/OpenSim/ApplicationPlugins/RemoteController/RemoteAdminPlugin.cs
+++ b/OpenSim/ApplicationPlugins/RemoteController/RemoteAdminPlugin.cs
@@ -123,6 +123,7 @@ namespace OpenSim.ApplicationPlugins.RemoteController
                    availableMethods["admin_region_query"] = XmlRpcRegionQueryMethod;
                    availableMethods["admin_shutdown"] = XmlRpcShutdownMethod;
                    availableMethods["admin_broadcast"] = XmlRpcAlertMethod;
+                    availableMethods["admin_dialog"] = XmlRpcDialogMethod;
                    availableMethods["admin_restart"] = XmlRpcRestartMethod;
                    availableMethods["admin_load_heightmap"] = XmlRpcLoadHeightmapMethod;
                    // User management
@@ -212,9 +213,59 @@ namespace OpenSim.ApplicationPlugins.RemoteController
                if (!m_app.SceneManager.TryGetScene(regionID, out rebootedScene))
                    throw new Exception("region not found");
+                int timeout = 30000;
+                string message;
+                if (requestData.ContainsKey("restart")
+                    && ((string)requestData["restart"] == "delayed")
+                    && requestData.ContainsKey("milliseconds"))
+                {
+                    timeout = Int32.Parse(requestData["milliseconds"].ToString());
+                    if (timeout < 15000)
+                    {
+                        //It must be at least 15 seconds or we'll cancel the reboot request
+                        timeout = 15000;
+                    }
+                    message
+                        = "Region is restarting in " + ((int)(timeout / 1000)).ToString()
+                          + " second(s). Please save what you are doing and log out.";
+                }
+                else
+                {
+                    message = "Region is restarting in 30 second(s). Please save what you are doing and log out.";
+                }
+                if (requestData.ContainsKey("noticetype")
+                    && ((string)requestData["noticetype"] == "dialog"))
+                {
+                    m_app.SceneManager.ForEachScene(
+                    delegate(Scene scene)
+                    {
+                        IDialogModule dialogModule = scene.RequestModuleInterface<IDialogModule>();
+                        if (dialogModule != null)
+                            dialogModule.SendNotificationToUsersInRegion(UUID.Zero, "System", message);
+                    });
+                }
+                else
+                {
+                    if (!requestData.ContainsKey("noticetype")
+                    || ((string)requestData["noticetype"] != "none"))
+                    {
+                        m_app.SceneManager.ForEachScene(
+                        delegate(Scene scene)
+                        {
+                            IDialogModule dialogModule = scene.RequestModuleInterface<IDialogModule>();
+                            if (dialogModule != null)
+                                dialogModule.SendGeneralAlert(message);
+                        });
+                    }
+                }
                responseData["rebooting"] = true;
                response.Value = responseData;
-                rebootedScene.Restart(30);
+                rebootedScene.Restart(timeout / 1000,false);
            }
            catch (Exception e)
            {
@@ -277,6 +328,53 @@ namespace OpenSim.ApplicationPlugins.RemoteController
            m_log.Info("[RADMIN]: Alert request complete");
            return response;
        }
+        public XmlRpcResponse XmlRpcDialogMethod(XmlRpcRequest request, IPEndPoint remoteClient)
+        {
+            XmlRpcResponse response = new XmlRpcResponse();
+            Hashtable responseData = new Hashtable();
+            m_log.Info("[RADMIN]: Dialog request started");
+            try
+            {
+                Hashtable requestData = (Hashtable)request.Params[0];
+                checkStringParameters(request, new string[] { "password", "from", "message" });
+                if (m_requiredPassword != String.Empty &&
+                    (!requestData.Contains("password") || (string)requestData["password"] != m_requiredPassword))
+                    throw new Exception("wrong password");
+                string message = (string)requestData["message"];
+                string fromuuid = (string)requestData["from"];
+                m_log.InfoFormat("[RADMIN]: Broadcasting: {0}", message);
+                responseData["accepted"] = true;
+                responseData["success"] = true;
+                response.Value = responseData;
+                m_app.SceneManager.ForEachScene(
+                    delegate(Scene scene)
+                    {
+                        IDialogModule dialogModule = scene.RequestModuleInterface<IDialogModule>();
+                        if (dialogModule != null)
+                            dialogModule.SendNotificationToUsersInRegion(UUID.Zero, fromuuid, message);
+                    });
+            }
+            catch (Exception e)
+            {
+                m_log.ErrorFormat("[RADMIN]: Broadcasting: failed: {0}", e.Message);
+                m_log.DebugFormat("[RADMIN]: Broadcasting: failed: {0}", e.ToString());
+                responseData["accepted"] = false;
+                responseData["success"] = false;
+                responseData["error"] = e.Message;
+                response.Value = responseData;
+            }
+            m_log.Info("[RADMIN]: Alert request complete");
+            return response;
+        }
        public XmlRpcResponse XmlRpcLoadHeightmapMethod(XmlRpcRequest request, IPEndPoint remoteClient)
        {
@@ -384,13 +482,33 @@ namespace OpenSim.ApplicationPlugins.RemoteController
                    message = "Region is going down now.";
                }
-                m_app.SceneManager.ForEachScene(
+                if (requestData.ContainsKey("noticetype")
+                    && ((string) requestData["noticetype"] == "dialog"))
+                {
+                    m_app.SceneManager.ForEachScene(
                    delegate(Scene scene)
                        {
                            IDialogModule dialogModule = scene.RequestModuleInterface<IDialogModule>();
                            if (dialogModule != null)
+                                dialogModule.SendNotificationToUsersInRegion(UUID.Zero, "System", message);
+                        });
+                }
+                else
+                {
+                    if (!requestData.ContainsKey("noticetype")
+                    || ((string)requestData["noticetype"] != "none"))
+                    {
+                        m_app.SceneManager.ForEachScene(
+                        delegate(Scene scene)
+                        {
+                            IDialogModule dialogModule = scene.RequestModuleInterface<IDialogModule>();
+                            if (dialogModule != null)
                                dialogModule.SendGeneralAlert(message);
                        });
+                    }
+                }
+                
                // Perform shutdown
                System.Timers.Timer shutdownTimer = new System.Timers.Timer(timeout); // Wait before firing
diff --git a/OpenSim/Client/MXP/ClientStack/MXPClientView.cs b/OpenSim/Client/MXP/ClientStack/MXPClientView.cs
index 0cae3dd..9f9d151 100644
--- a/OpenSim/Client/MXP/ClientStack/MXPClientView.cs
+++ b/OpenSim/Client/MXP/ClientStack/MXPClientView.cs
@@ -902,7 +902,7 @@ namespace OpenSim.Client.MXP.ClientStack
            // Need to translate to MXP somehow
        }
-        public void SendGenericMessage(string method, List<string> message)
+        public void SendGenericMessage(string method, List<byte[]> message)
        {
            // Need to translate to MXP somehow
        }
diff --git a/OpenSim/Client/VWoHTTP/ClientStack/VWHClientView.cs b/OpenSim/Client/VWoHTTP/ClientStack/VWHClientView.cs
index fb87c15..533475f 100644
--- a/OpenSim/Client/VWoHTTP/ClientStack/VWHClientView.cs
+++ b/OpenSim/Client/VWoHTTP/ClientStack/VWHClientView.cs
@@ -483,7 +483,7 @@ namespace OpenSim.Client.VWoHTTP.ClientStack
            throw new System.NotImplementedException();
        }
-        public void SendGenericMessage(string method, List<string> message)
+        public void SendGenericMessage(string method, List<byte[]> message)
        {
            throw new System.NotImplementedException();
        }
diff --git a/OpenSim/Data/MSSQL/MSSQLLegacyRegionData.cs b/OpenSim/Data/MSSQL/MSSQLLegacyRegionData.cs
index 6371307..0b430c7 100644
--- a/OpenSim/Data/MSSQL/MSSQLLegacyRegionData.cs
+++ b/OpenSim/Data/MSSQL/MSSQLLegacyRegionData.cs
@@ -671,7 +671,16 @@ VALUES
                cmd.ExecuteNonQuery();
            }
        }
+        public RegionMeta7WindlightData LoadRegionWindlightSettings(UUID regionUUID)
+        {
+            //This connector doesn't support the windlight module yet
+            //Return default LL windlight settings
+            return new RegionMeta7WindlightData();
+        }
+        public void StoreRegionWindlightSettings(RegionMeta7WindlightData wl)
+        {
+            //This connector doesn't support the windlight module yet
+        }
        /// <summary>
        /// Loads the settings of a region.
        /// </summary>
@@ -696,7 +705,7 @@ VALUES
                }
            }
-            //If comes here then there is now region setting for that region
+            //If we reach this point then there are new region settings for that region
            regionSettings = new RegionSettings();
            regionSettings.RegionUUID = regionUUID;
            regionSettings.OnSave += StoreRegionSettings;
diff --git a/OpenSim/Data/MySQL/MySQLLegacyRegionData.cs b/OpenSim/Data/MySQL/MySQLLegacyRegionData.cs
index 9a4a4bb..e57e929 100644
--- a/OpenSim/Data/MySQL/MySQLLegacyRegionData.cs
+++ b/OpenSim/Data/MySQL/MySQLLegacyRegionData.cs
@@ -693,6 +693,97 @@ namespace OpenSim.Data.MySQL
            }
        }
+        public RegionMeta7WindlightData LoadRegionWindlightSettings(UUID regionUUID)
+        {
+            RegionMeta7WindlightData nWP = new RegionMeta7WindlightData();
+            nWP.OnSave += StoreRegionWindlightSettings;
+            lock (m_Connection)
+            {
+                
+                string command = "select * from `regionwindlight` where region_id = ?regionID";
+                MySqlCommand cmd = new MySqlCommand(command);
+                cmd.Parameters.AddWithValue("?regionID", regionUUID.ToString());
+                IDataReader result = ExecuteReader(cmd);
+                if (!result.Read())
+                {
+                    //No result, so store our default windlight profile and return it
+                    nWP.regionID = regionUUID;
+                    StoreRegionWindlightSettings(nWP);
+                    return nWP;
+                }
+                else
+                {
+                    UUID.TryParse(result["region_id"].ToString(), out nWP.regionID);
+                    nWP.waterColor.X = Convert.ToSingle(result["water_color_r"]);
+                    nWP.waterColor.Y = Convert.ToSingle(result["water_color_g"]);
+                    nWP.waterColor.Z = Convert.ToSingle(result["water_color_b"]);
+                    nWP.waterFogDensityExponent = Convert.ToSingle(result["water_fog_density_exponent"]);
+                    nWP.underwaterFogModifier = Convert.ToSingle(result["underwater_fog_modifier"]);
+                    nWP.reflectionWaveletScale.X = Convert.ToSingle(result["reflection_wavelet_scale_1"]);
+                    nWP.reflectionWaveletScale.Y = Convert.ToSingle(result["reflection_wavelet_scale_2"]);
+                    nWP.reflectionWaveletScale.Z = Convert.ToSingle(result["reflection_wavelet_scale_3"]);
+                    nWP.fresnelScale = Convert.ToSingle(result["fresnel_scale"]);
+                    nWP.fresnelOffset = Convert.ToSingle(result["fresnel_offset"]);
+                    nWP.refractScaleAbove = Convert.ToSingle(result["refract_scale_above"]);
+                    nWP.refractScaleBelow = Convert.ToSingle(result["refract_scale_below"]);
+                    nWP.blurMultiplier = Convert.ToSingle(result["blur_multiplier"]);
+                    nWP.bigWaveDirection.X = Convert.ToSingle(result["big_wave_direction_x"]);
+                    nWP.bigWaveDirection.Y = Convert.ToSingle(result["big_wave_direction_y"]);
+                    nWP.littleWaveDirection.X = Convert.ToSingle(result["little_wave_direction_x"]);
+                    nWP.littleWaveDirection.Y = Convert.ToSingle(result["little_wave_direction_y"]);
+                    UUID.TryParse(result["normal_map_texture"].ToString(), out nWP.normalMapTexture);
+                    nWP.horizon.X = Convert.ToSingle(result["horizon_r"]);
+                    nWP.horizon.Y = Convert.ToSingle(result["horizon_g"]);
+                    nWP.horizon.Z = Convert.ToSingle(result["horizon_b"]);
+                    nWP.horizon.W = Convert.ToSingle(result["horizon_i"]);
+                    nWP.hazeHorizon = Convert.ToSingle(result["haze_horizon"]);
+                    nWP.blueDensity.X = Convert.ToSingle(result["blue_density_r"]);
+                    nWP.blueDensity.Y = Convert.ToSingle(result["blue_density_g"]);
+                    nWP.blueDensity.Z = Convert.ToSingle(result["blue_density_b"]);
+                    nWP.blueDensity.W = Convert.ToSingle(result["blue_density_i"]);
+                    nWP.hazeDensity = Convert.ToSingle(result["haze_density"]);
+                    nWP.densityMultiplier = Convert.ToSingle(result["density_multiplier"]);
+                    nWP.distanceMultiplier = Convert.ToSingle(result["distance_multiplier"]);
+                    nWP.maxAltitude = Convert.ToUInt16(result["max_altitude"]);
+                    nWP.sunMoonColor.X = Convert.ToSingle(result["sun_moon_color_r"]);
+                    nWP.sunMoonColor.Y = Convert.ToSingle(result["sun_moon_color_g"]);
+                    nWP.sunMoonColor.Z = Convert.ToSingle(result["sun_moon_color_b"]);
+                    nWP.sunMoonColor.W = Convert.ToSingle(result["sun_moon_color_i"]);
+                    nWP.sunMoonPosition = Convert.ToSingle(result["sun_moon_position"]);
+                    nWP.ambient.X = Convert.ToSingle(result["ambient_r"]);
+                    nWP.ambient.Y = Convert.ToSingle(result["ambient_g"]);
+                    nWP.ambient.Z = Convert.ToSingle(result["ambient_b"]);
+                    nWP.ambient.W = Convert.ToSingle(result["ambient_i"]);
+                    nWP.eastAngle = Convert.ToSingle(result["east_angle"]);
+                    nWP.sunGlowFocus = Convert.ToSingle(result["sun_glow_focus"]);
+                    nWP.sunGlowSize = Convert.ToSingle(result["sun_glow_size"]);
+                    nWP.sceneGamma = Convert.ToSingle(result["scene_gamma"]);
+                    nWP.starBrightness = Convert.ToSingle(result["star_brightness"]);
+                    nWP.cloudColor.X = Convert.ToSingle(result["cloud_color_r"]);
+                    nWP.cloudColor.Y = Convert.ToSingle(result["cloud_color_g"]);
+                    nWP.cloudColor.Z = Convert.ToSingle(result["cloud_color_b"]);
+                    nWP.cloudColor.W = Convert.ToSingle(result["cloud_color_i"]);
+                    nWP.cloudXYDensity.X = Convert.ToSingle(result["cloud_x"]);
+                    nWP.cloudXYDensity.Y = Convert.ToSingle(result["cloud_y"]);
+                    nWP.cloudXYDensity.Z = Convert.ToSingle(result["cloud_density"]);
+                    nWP.cloudCoverage = Convert.ToSingle(result["cloud_coverage"]);
+                    nWP.cloudScale = Convert.ToSingle(result["cloud_scale"]);
+                    nWP.cloudDetailXYDensity.X = Convert.ToSingle(result["cloud_detail_x"]);
+                    nWP.cloudDetailXYDensity.Y = Convert.ToSingle(result["cloud_detail_y"]);
+                    nWP.cloudDetailXYDensity.Z = Convert.ToSingle(result["cloud_detail_density"]);
+                    nWP.cloudScrollX = Convert.ToSingle(result["cloud_scroll_x"]);
+                    nWP.cloudScrollXLock = Convert.ToBoolean(result["cloud_scroll_x_lock"]);
+                    nWP.cloudScrollY = Convert.ToSingle(result["cloud_scroll_y"]);
+                    nWP.cloudScrollYLock = Convert.ToBoolean(result["cloud_scroll_y_lock"]);
+                    nWP.drawClassicClouds = Convert.ToBoolean(result["draw_classic_clouds"]);
+                }
+            }
+            return nWP;
+        }
        public RegionSettings LoadRegionSettings(UUID regionUUID)
        {
            RegionSettings rs = null;
@@ -726,6 +817,107 @@ namespace OpenSim.Data.MySQL
            return rs;
        }
+        public void StoreRegionWindlightSettings(RegionMeta7WindlightData wl)
+        {
+            lock (m_Connection)
+            {
+                using (MySqlCommand cmd = m_Connection.CreateCommand())
+                {
+                    cmd.CommandText = "REPLACE INTO `regionwindlight` (`region_id`, `water_color_r`, `water_color_g`, ";
+                    cmd.CommandText += "`water_color_b`, `water_fog_density_exponent`, `underwater_fog_modifier`, ";
+                    cmd.CommandText += "`reflection_wavelet_scale_1`, `reflection_wavelet_scale_2`, `reflection_wavelet_scale_3`, ";
+                    cmd.CommandText += "`fresnel_scale`, `fresnel_offset`, `refract_scale_above`, `refract_scale_below`, ";
+                    cmd.CommandText += "`blur_multiplier`, `big_wave_direction_x`, `big_wave_direction_y`, `little_wave_direction_x`, ";
+                    cmd.CommandText += "`little_wave_direction_y`, `normal_map_texture`, `horizon_r`, `horizon_g`, `horizon_b`, ";
+                    cmd.CommandText += "`horizon_i`, `haze_horizon`, `blue_density_r`, `blue_density_g`, `blue_density_b`, ";
+                    cmd.CommandText += "`blue_density_i`, `haze_density`, `density_multiplier`, `distance_multiplier`, `max_altitude`, ";
+                    cmd.CommandText += "`sun_moon_color_r`, `sun_moon_color_g`, `sun_moon_color_b`, `sun_moon_color_i`, `sun_moon_position`, ";
+                    cmd.CommandText += "`ambient_r`, `ambient_g`, `ambient_b`, `ambient_i`, `east_angle`, `sun_glow_focus`, `sun_glow_size`, ";
+                    cmd.CommandText += "`scene_gamma`, `star_brightness`, `cloud_color_r`, `cloud_color_g`, `cloud_color_b`, `cloud_color_i`, ";
+                    cmd.CommandText += "`cloud_x`, `cloud_y`, `cloud_density`, `cloud_coverage`, `cloud_scale`, `cloud_detail_x`, ";
+                    cmd.CommandText += "`cloud_detail_y`, `cloud_detail_density`, `cloud_scroll_x`, `cloud_scroll_x_lock`, `cloud_scroll_y`, ";
+                    cmd.CommandText += "`cloud_scroll_y_lock`, `draw_classic_clouds`) VALUES (?region_id, ?water_color_r, ";
+                    cmd.CommandText += "?water_color_g, ?water_color_b, ?water_fog_density_exponent, ?underwater_fog_modifier, ?reflection_wavelet_scale_1, ";
+                    cmd.CommandText += "?reflection_wavelet_scale_2, ?reflection_wavelet_scale_3, ?fresnel_scale, ?fresnel_offset, ?refract_scale_above, ";
+                    cmd.CommandText += "?refract_scale_below, ?blur_multiplier, ?big_wave_direction_x, ?big_wave_direction_y, ?little_wave_direction_x, ";
+                    cmd.CommandText += "?little_wave_direction_y, ?normal_map_texture, ?horizon_r, ?horizon_g, ?horizon_b, ?horizon_i, ?haze_horizon, ";
+                    cmd.CommandText += "?blue_density_r, ?blue_density_g, ?blue_density_b, ?blue_density_i, ?haze_density, ?density_multiplier, ";
+                    cmd.CommandText += "?distance_multiplier, ?max_altitude, ?sun_moon_color_r, ?sun_moon_color_g, ?sun_moon_color_b, ";
+                    cmd.CommandText += "?sun_moon_color_i, ?sun_moon_position, ?ambient_r, ?ambient_g, ?ambient_b, ?ambient_i, ?east_angle, ";
+                    cmd.CommandText += "?sun_glow_focus, ?sun_glow_size, ?scene_gamma, ?star_brightness, ?cloud_color_r, ?cloud_color_g, ";
+                    cmd.CommandText += "?cloud_color_b, ?cloud_color_i, ?cloud_x, ?cloud_y, ?cloud_density, ?cloud_coverage, ?cloud_scale, ";
+                    cmd.CommandText += "?cloud_detail_x, ?cloud_detail_y, ?cloud_detail_density, ?cloud_scroll_x, ?cloud_scroll_x_lock, ";
+                    cmd.CommandText += "?cloud_scroll_y, ?cloud_scroll_y_lock, ?draw_classic_clouds)";
+                    cmd.Parameters.AddWithValue("region_id", wl.regionID);
+                    cmd.Parameters.AddWithValue("water_color_r", wl.waterColor.X);
+                    cmd.Parameters.AddWithValue("water_color_g", wl.waterColor.Y);
+                    cmd.Parameters.AddWithValue("water_color_b", wl.waterColor.Z);
+                    cmd.Parameters.AddWithValue("water_fog_density_exponent", wl.waterFogDensityExponent);
+                    cmd.Parameters.AddWithValue("underwater_fog_modifier", wl.underwaterFogModifier);
+                    cmd.Parameters.AddWithValue("reflection_wavelet_scale_1", wl.reflectionWaveletScale.X);
+                    cmd.Parameters.AddWithValue("reflection_wavelet_scale_2", wl.reflectionWaveletScale.Y);
+                    cmd.Parameters.AddWithValue("reflection_wavelet_scale_3", wl.reflectionWaveletScale.Z);
+                    cmd.Parameters.AddWithValue("fresnel_scale", wl.fresnelScale);
+                    cmd.Parameters.AddWithValue("fresnel_offset", wl.fresnelOffset);
+                    cmd.Parameters.AddWithValue("refract_scale_above", wl.refractScaleAbove);
+                    cmd.Parameters.AddWithValue("refract_scale_below", wl.refractScaleBelow);
+                    cmd.Parameters.AddWithValue("blur_multiplier", wl.blurMultiplier);
+                    cmd.Parameters.AddWithValue("big_wave_direction_x", wl.bigWaveDirection.X);
+                    cmd.Parameters.AddWithValue("big_wave_direction_y", wl.bigWaveDirection.Y);
+                    cmd.Parameters.AddWithValue("little_wave_direction_x", wl.littleWaveDirection.X);
+                    cmd.Parameters.AddWithValue("little_wave_direction_y", wl.littleWaveDirection.Y);
+                    cmd.Parameters.AddWithValue("normal_map_texture", wl.normalMapTexture);
+                    cmd.Parameters.AddWithValue("horizon_r", wl.horizon.X);
+                    cmd.Parameters.AddWithValue("horizon_g", wl.horizon.Y);
+                    cmd.Parameters.AddWithValue("horizon_b", wl.horizon.Z);
+                    cmd.Parameters.AddWithValue("horizon_i", wl.horizon.W);
+                    cmd.Parameters.AddWithValue("haze_horizon", wl.hazeHorizon);
+                    cmd.Parameters.AddWithValue("blue_density_r", wl.blueDensity.X);
+                    cmd.Parameters.AddWithValue("blue_density_g", wl.blueDensity.Y);
+                    cmd.Parameters.AddWithValue("blue_density_b", wl.blueDensity.Z);
+                    cmd.Parameters.AddWithValue("blue_density_i", wl.blueDensity.W);
+                    cmd.Parameters.AddWithValue("haze_density", wl.hazeDensity);
+                    cmd.Parameters.AddWithValue("density_multiplier", wl.densityMultiplier);
+                    cmd.Parameters.AddWithValue("distance_multiplier", wl.distanceMultiplier);
+                    cmd.Parameters.AddWithValue("max_altitude", wl.maxAltitude);
+                    cmd.Parameters.AddWithValue("sun_moon_color_r", wl.sunMoonColor.X);
+                    cmd.Parameters.AddWithValue("sun_moon_color_g", wl.sunMoonColor.Y);
+                    cmd.Parameters.AddWithValue("sun_moon_color_b", wl.sunMoonColor.Z);
+                    cmd.Parameters.AddWithValue("sun_moon_color_i", wl.sunMoonColor.W);
+                    cmd.Parameters.AddWithValue("sun_moon_position", wl.sunMoonPosition);
+                    cmd.Parameters.AddWithValue("ambient_r", wl.ambient.X);
+                    cmd.Parameters.AddWithValue("ambient_g", wl.ambient.Y);
+                    cmd.Parameters.AddWithValue("ambient_b", wl.ambient.Z);
+                    cmd.Parameters.AddWithValue("ambient_i", wl.ambient.W);
+                    cmd.Parameters.AddWithValue("east_angle", wl.eastAngle);
+                    cmd.Parameters.AddWithValue("sun_glow_focus", wl.sunGlowFocus);
+                    cmd.Parameters.AddWithValue("sun_glow_size", wl.sunGlowSize);
+                    cmd.Parameters.AddWithValue("scene_gamma", wl.sceneGamma);
+                    cmd.Parameters.AddWithValue("star_brightness", wl.starBrightness);
+                    cmd.Parameters.AddWithValue("cloud_color_r", wl.cloudColor.X);
+                    cmd.Parameters.AddWithValue("cloud_color_g", wl.cloudColor.Y);
+                    cmd.Parameters.AddWithValue("cloud_color_b", wl.cloudColor.Z);
+                    cmd.Parameters.AddWithValue("cloud_color_i", wl.cloudColor.W);
+                    cmd.Parameters.AddWithValue("cloud_x", wl.cloudXYDensity.X);
+                    cmd.Parameters.AddWithValue("cloud_y", wl.cloudXYDensity.Y);
+                    cmd.Parameters.AddWithValue("cloud_density", wl.cloudXYDensity.Z);
+                    cmd.Parameters.AddWithValue("cloud_coverage", wl.cloudCoverage);
+                    cmd.Parameters.AddWithValue("cloud_scale", wl.cloudScale);
+                    cmd.Parameters.AddWithValue("cloud_detail_x", wl.cloudDetailXYDensity.X);
+                    cmd.Parameters.AddWithValue("cloud_detail_y", wl.cloudDetailXYDensity.Y);
+                    cmd.Parameters.AddWithValue("cloud_detail_density", wl.cloudDetailXYDensity.Z);
+                    cmd.Parameters.AddWithValue("cloud_scroll_x", wl.cloudScrollX);
+                    cmd.Parameters.AddWithValue("cloud_scroll_x_lock", wl.cloudScrollXLock);
+                    cmd.Parameters.AddWithValue("cloud_scroll_y", wl.cloudScrollY);
+                    cmd.Parameters.AddWithValue("cloud_scroll_y_lock", wl.cloudScrollYLock);
+                    cmd.Parameters.AddWithValue("draw_classic_clouds", wl.drawClassicClouds);
+                    
+                    ExecuteNonQuery(cmd);
+                }
+            }
+        }
        public void StoreRegionSettings(RegionSettings rs)
        {
            lock (m_Connection)
diff --git a/OpenSim/Data/MySQL/Resources/032_RegionStore.sql b/OpenSim/Data/MySQL/Resources/032_RegionStore.sql
new file mode 100644
index 0000000..0545ee1
--- /dev/null
+++ b/OpenSim/Data/MySQL/Resources/032_RegionStore.sql
@@ -0,0 +1,70 @@
+BEGIN;
+CREATE TABLE `regionwindlight` (
+  `region_id` varchar(36) NOT NULL DEFAULT '000000-0000-0000-0000-000000000000',
+  `water_color_r` float(9,6) unsigned NOT NULL DEFAULT '4.000000',
+  `water_color_g` float(9,6) unsigned NOT NULL DEFAULT '38.000000',
+  `water_color_b` float(9,6) unsigned NOT NULL DEFAULT '64.000000',
+  `water_fog_density_exponent` float(3,1) unsigned NOT NULL DEFAULT '4.0',
+  `underwater_fog_modifier` float(3,2) unsigned NOT NULL DEFAULT '0.25',
+  `reflection_wavelet_scale_1` float(3,1) unsigned NOT NULL DEFAULT '2.0',
+  `reflection_wavelet_scale_2` float(3,1) unsigned NOT NULL DEFAULT '2.0',
+  `reflection_wavelet_scale_3` float(3,1) unsigned NOT NULL DEFAULT '2.0',
+  `fresnel_scale` float(3,2) unsigned NOT NULL DEFAULT '0.40',
+  `fresnel_offset` float(3,2) unsigned NOT NULL DEFAULT '0.50',
+  `refract_scale_above` float(3,2) unsigned NOT NULL DEFAULT '0.03',
+  `refract_scale_below` float(3,2) unsigned NOT NULL DEFAULT '0.20',
+  `blur_multiplier` float(4,3) unsigned NOT NULL DEFAULT '0.040',
+  `big_wave_direction_x` float(3,2) NOT NULL DEFAULT '1.05',
+  `big_wave_direction_y` float(3,2) NOT NULL DEFAULT '-0.42',
+  `little_wave_direction_x` float(3,2) NOT NULL DEFAULT '1.11',
+  `little_wave_direction_y` float(3,2) NOT NULL DEFAULT '-1.16',
+  `normal_map_texture` varchar(36) NOT NULL DEFAULT '822ded49-9a6c-f61c-cb89-6df54f42cdf4',
+  `horizon_r` float(3,2) unsigned NOT NULL DEFAULT '0.26',
+  `horizon_g` float(3,2) unsigned NOT NULL DEFAULT '0.24',
+  `horizon_b` float(3,2) unsigned NOT NULL DEFAULT '0.33',
+  `horizon_i` float(3,2) unsigned NOT NULL DEFAULT '0.33',
+  `haze_horizon` float(3,2) unsigned NOT NULL DEFAULT '0.19',
+  `blue_density_r` float(3,2) unsigned NOT NULL DEFAULT '0.10',
+  `blue_density_g` float(3,2) unsigned NOT NULL DEFAULT '0.93',
+  `blue_density_b` float(3,2) unsigned NOT NULL DEFAULT '0.02',
+  `blue_density_i` float(3,2) unsigned NOT NULL DEFAULT '0.93',
+  `haze_density` float(3,2) unsigned NOT NULL DEFAULT '0.70',
+  `density_multiplier` float(3,2) unsigned NOT NULL DEFAULT '0.18',
+  `distance_multiplier` float(4,1) unsigned NOT NULL DEFAULT '0.8',
+  `max_altitude` int(4) unsigned NOT NULL DEFAULT '1605',
+  `sun_moon_color_r` float(3,2) unsigned NOT NULL DEFAULT '0.24',
+  `sun_moon_color_g` float(3,2) unsigned NOT NULL DEFAULT '0.26',
+  `sun_moon_color_b` float(3,2) unsigned NOT NULL DEFAULT '0.30',
+  `sun_moon_color_i` float(3,2) unsigned NOT NULL DEFAULT '0.30',
+  `sun_moon_position` float(4,3) unsigned NOT NULL DEFAULT '0.335',
+  `ambient_r` float(3,2) unsigned NOT NULL DEFAULT '0.35',
+  `ambient_g` float(3,2) unsigned NOT NULL DEFAULT '0.35',
+  `ambient_b` float(3,2) unsigned NOT NULL DEFAULT '0.35',
+  `ambient_i` float(3,2) unsigned NOT NULL DEFAULT '0.35',
+  `east_angle` float(3,2) unsigned NOT NULL DEFAULT '0.00',
+  `sun_glow_focus` float(3,2) unsigned NOT NULL DEFAULT '0.10',
+  `sun_glow_size` float(3,2) unsigned NOT NULL DEFAULT '1.75',
+  `scene_gamma` float(4,2) unsigned NOT NULL DEFAULT '1.00',
+  `star_brightness` float(3,2) unsigned NOT NULL DEFAULT '0.00',
+  `cloud_color_r` float(3,2) unsigned NOT NULL DEFAULT '0.41',
+  `cloud_color_g` float(3,2) unsigned NOT NULL DEFAULT '0.41',
+  `cloud_color_b` float(3,2) unsigned NOT NULL DEFAULT '0.41',
+  `cloud_color_i` float(3,2) unsigned NOT NULL DEFAULT '0.41',
+  `cloud_x` float(3,2) unsigned NOT NULL DEFAULT '1.00',
+  `cloud_y` float(3,2) unsigned NOT NULL DEFAULT '0.53',
+  `cloud_density` float(3,2) unsigned NOT NULL DEFAULT '1.00',
+  `cloud_coverage` float(3,2) unsigned NOT NULL DEFAULT '0.27',
+  `cloud_scale` float(3,2) unsigned NOT NULL DEFAULT '0.42',
+  `cloud_detail_x` float(3,2) unsigned NOT NULL DEFAULT '1.00',
+  `cloud_detail_y` float(3,2) unsigned NOT NULL DEFAULT '0.53',
+  `cloud_detail_density` float(3,2) unsigned NOT NULL DEFAULT '0.12',
+  `cloud_scroll_x` float(3,2) unsigned NOT NULL DEFAULT '0.20',
+  `cloud_scroll_x_lock` tinyint(1) unsigned NOT NULL DEFAULT '0',
+  `cloud_scroll_y` float(3,2) unsigned NOT NULL DEFAULT '0.01',
+  `cloud_scroll_y_lock` tinyint(1) unsigned NOT NULL DEFAULT '0',
+  `draw_classic_clouds` tinyint(1) unsigned NOT NULL DEFAULT '0',
+  PRIMARY KEY (`region_id`)
+);
+COMMIT;
+\ No newline at end of file
diff --git a/OpenSim/Data/Null/NullDataStore.cs b/OpenSim/Data/Null/NullDataStore.cs
index 427fa0a..4b6d0f3 100644
--- a/OpenSim/Data/Null/NullDataStore.cs
+++ b/OpenSim/Data/Null/NullDataStore.cs
@@ -50,7 +50,16 @@ namespace OpenSim.Data.Null
        public void StoreRegionSettings(RegionSettings rs)
        {
        }
+        public RegionMeta7WindlightData LoadRegionWindlightSettings(UUID regionUUID)
+        {
+            //This connector doesn't support the windlight module yet
+            //Return default LL windlight settings
+            return new RegionMeta7WindlightData();
+        }
+        public void StoreRegionWindlightSettings(RegionMeta7WindlightData wl)
+        {
+            //This connector doesn't support the windlight module yet
+        }
        public RegionSettings LoadRegionSettings(UUID regionUUID)
        {
            return null;
diff --git a/OpenSim/Data/SQLite/SQLiteRegionData.cs b/OpenSim/Data/SQLite/SQLiteRegionData.cs
index b68de1a..f1c1f78 100644
--- a/OpenSim/Data/SQLite/SQLiteRegionData.cs
+++ b/OpenSim/Data/SQLite/SQLiteRegionData.cs
@@ -272,7 +272,16 @@ namespace OpenSim.Data.SQLite
                Commit();
            }
        }
+        public RegionMeta7WindlightData LoadRegionWindlightSettings(UUID regionUUID)
+        {
+            //This connector doesn't support the windlight module yet
+            //Return default LL windlight settings
+            return new RegionMeta7WindlightData();
+        }
+        public void StoreRegionWindlightSettings(RegionMeta7WindlightData wl)
+        {
+            //This connector doesn't support the windlight module yet
+        }
        public RegionSettings LoadRegionSettings(UUID regionUUID)
        {
            lock (ds)
diff --git a/OpenSim/Framework/IClientAPI.cs b/OpenSim/Framework/IClientAPI.cs
index 04ba9c6..cb136e2 100644
--- a/OpenSim/Framework/IClientAPI.cs
+++ b/OpenSim/Framework/IClientAPI.cs
@@ -1077,7 +1077,7 @@ namespace OpenSim.Framework
        void SendInstantMessage(GridInstantMessage im);
-        void SendGenericMessage(string method, List<string> message);
+        void SendGenericMessage(string method, List<byte[]> message);
        void SendLayerData(float[] map);
        void SendLayerData(int px, int py, float[] map);
diff --git a/OpenSim/Framework/RegionInfo.cs b/OpenSim/Framework/RegionInfo.cs
index 88b62e0..9e00528 100644
--- a/OpenSim/Framework/RegionInfo.cs
+++ b/OpenSim/Framework/RegionInfo.cs
@@ -36,8 +36,290 @@ using OpenMetaverse;
 using OpenMetaverse.StructuredData;
 using OpenSim.Framework.Console;
 namespace OpenSim.Framework
 {
+    public class RegionMeta7WindlightData
+    {
+        public UUID regionID = UUID.Zero;
+        public Vector3 waterColor = new Vector3(4.0f,38.0f,64.0f);
+        public float waterFogDensityExponent = 4.0f;
+        public float underwaterFogModifier = 0.25f;
+        public Vector3 reflectionWaveletScale = new Vector3(2.0f,2.0f,2.0f);
+        public float fresnelScale = 0.40f;
+        public float fresnelOffset = 0.50f;
+        public float refractScaleAbove = 0.03f;
+        public float refractScaleBelow = 0.20f;
+        public float blurMultiplier = 0.040f;
+        public Vector2 bigWaveDirection = new Vector2(1.05f,-0.42f);
+        public Vector2 littleWaveDirection = new Vector2(1.11f,-1.16f);
+        public UUID normalMapTexture = new UUID("822ded49-9a6c-f61c-cb89-6df54f42cdf4");
+        public Vector4 horizon = new Vector4(0.26f, 0.24f, 0.34f, 0.33f);
+        public float hazeHorizon = 0.19f;
+        public Vector4 blueDensity = new Vector4(0.10f, 0.93f, 0.02f, 0.93f);
+        public float hazeDensity = 0.70f;
+        public float densityMultiplier = 0.18f;
+        public float distanceMultiplier = 0.8f;
+        public UInt16 maxAltitude = 1605;
+        public Vector4 sunMoonColor = new Vector4(0.24f, 0.26f, 0.30f, 0.30f);
+        public float sunMoonPosition = 0.335f;
+        public Vector4 ambient = new Vector4(0.35f,0.35f,0.35f,0.35f);
+        public float eastAngle = 0.0f;
+        public float sunGlowFocus = 0.10f;
+        public float sunGlowSize = 0.10f;
+        public float sceneGamma = 1.0f;
+        public float starBrightness = 0.0f;
+        public Vector4 cloudColor = new Vector4(0.41f, 0.41f, 0.41f, 0.41f);
+        public Vector3 cloudXYDensity = new Vector3(1.00f, 0.53f, 1.00f);
+        public float cloudCoverage = 0.27f;
+        public float cloudScale = 0.42f;
+        public Vector3 cloudDetailXYDensity = new Vector3(1.00f, 0.53f, 0.12f);
+        public float cloudScrollX = 0.20f;
+        public bool cloudScrollXLock = false;
+        public float cloudScrollY = 0.01f;
+        public bool cloudScrollYLock = false;
+        public bool drawClassicClouds = false;
+        public delegate void SaveDelegate(RegionMeta7WindlightData wl);
+        public event SaveDelegate OnSave;
+        public void Save()
+        {
+            if (OnSave != null)
+                OnSave(this);
+        }
+    }
+    [Serializable]
+    public class SimpleRegionInfo
+    {
+        // private static readonly log4net.ILog m_log
+        //     = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
+        /// <summary>
+        /// The port by which http communication occurs with the region (most noticeably, CAPS communication)
+        /// </summary>
+        public uint HttpPort
+        {
+            get { return m_httpPort; }
+            set { m_httpPort = value; }
+        }
+        protected uint m_httpPort;
+        /// <summary>
+        /// A well-formed URI for the host region server (namely "http://" + ExternalHostName)
+        /// </summary>
+        public string ServerURI
+        {
+            get { return m_serverURI; }
+            set { m_serverURI = value; }
+        }
+        protected string m_serverURI;
+        public string RegionName
+        {
+            get { return m_regionName; }
+            set { m_regionName = value; }
+        }
+        protected string m_regionName = String.Empty;
+        protected bool Allow_Alternate_Ports;
+        public bool m_allow_alternate_ports;
+        protected string m_externalHostName;
+        protected IPEndPoint m_internalEndPoint;
+        protected uint? m_regionLocX;
+        protected uint? m_regionLocY;
+        protected uint m_remotingPort;
+        public UUID RegionID = UUID.Zero;
+        public string RemotingAddress;
+        public UUID ScopeID = UUID.Zero;
+        public SimpleRegionInfo()
+        {
+        }
+        public SimpleRegionInfo(uint regionLocX, uint regionLocY, IPEndPoint internalEndPoint, string externalUri)
+        {
+            m_regionLocX = regionLocX;
+            m_regionLocY = regionLocY;
+            m_internalEndPoint = internalEndPoint;
+            m_externalHostName = externalUri;
+        }
+        public SimpleRegionInfo(uint regionLocX, uint regionLocY, string externalUri, uint port)
+        {
+            m_regionLocX = regionLocX;
+            m_regionLocY = regionLocY;
+            m_externalHostName = externalUri;
+            m_internalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), (int) port);
+        }
+        public SimpleRegionInfo(RegionInfo ConvertFrom)
+        {
+            m_regionName = ConvertFrom.RegionName;
+            m_regionLocX = ConvertFrom.RegionLocX;
+            m_regionLocY = ConvertFrom.RegionLocY;
+            m_internalEndPoint = ConvertFrom.InternalEndPoint;
+            m_externalHostName = ConvertFrom.ExternalHostName;
+            m_remotingPort = ConvertFrom.RemotingPort;
+            m_httpPort = ConvertFrom.HttpPort;
+            m_allow_alternate_ports = ConvertFrom.m_allow_alternate_ports;
+            RemotingAddress = ConvertFrom.RemotingAddress;
+            RegionID = UUID.Zero;
+            ServerURI = ConvertFrom.ServerURI;
+        }
+        public uint RemotingPort
+        {
+            get { return m_remotingPort; }
+            set { m_remotingPort = value; }
+        }
+        /// <value>
+        /// This accessor can throw all the exceptions that Dns.GetHostAddresses can throw.
+        ///
+        /// XXX Isn't this really doing too much to be a simple getter, rather than an explict method?
+        /// </value>
+        public IPEndPoint ExternalEndPoint
+        {
+            get
+            {
+                // Old one defaults to IPv6
+                //return new IPEndPoint(Dns.GetHostAddresses(m_externalHostName)[0], m_internalEndPoint.Port);
+                IPAddress ia = null;
+                // If it is already an IP, don't resolve it - just return directly
+                if (IPAddress.TryParse(m_externalHostName, out ia))
+                    return new IPEndPoint(ia, m_internalEndPoint.Port);
+                // Reset for next check
+                ia = null;
+                try
+                {
+                    foreach (IPAddress Adr in Dns.GetHostAddresses(m_externalHostName))
+                    {
+                        if (ia == null)
+                            ia = Adr;
+                        if (Adr.AddressFamily == AddressFamily.InterNetwork)
+                        {
+                            ia = Adr;
+                            break;
+                        }
+                    }
+                }
+                catch (SocketException e)
+                {
+                    throw new Exception(
+                        "Unable to resolve local hostname " + m_externalHostName + " innerException of type '" +
+                        e + "' attached to this exception", e);
+                }
+                return new IPEndPoint(ia, m_internalEndPoint.Port);
+            }
+            set { m_externalHostName = value.ToString(); }
+        }
+        public string ExternalHostName
+        {
+            get { return m_externalHostName; }
+            set { m_externalHostName = value; }
+        }
+        public IPEndPoint InternalEndPoint
+        {
+            get { return m_internalEndPoint; }
+            set { m_internalEndPoint = value; }
+        }
+        public uint RegionLocX
+        {
+            get { return m_regionLocX.Value; }
+            set { m_regionLocX = value; }
+        }
+        public uint RegionLocY
+        {
+            get { return m_regionLocY.Value; }
+            set { m_regionLocY = value; }
+        }
+        public ulong RegionHandle
+        {
+            get { return Util.UIntsToLong((RegionLocX * (uint) Constants.RegionSize), (RegionLocY * (uint) Constants.RegionSize)); }
+        }
+        public int getInternalEndPointPort()
+        {
+            return m_internalEndPoint.Port;
+        }
+        public Dictionary<string, object> ToKeyValuePairs()
+        {
+            Dictionary<string, object> kvp = new Dictionary<string, object>();
+            kvp["uuid"] = RegionID.ToString();
+            kvp["locX"] = RegionLocX.ToString();
+            kvp["locY"] = RegionLocY.ToString();
+            kvp["external_ip_address"] = ExternalEndPoint.Address.ToString();
+            kvp["external_port"] = ExternalEndPoint.Port.ToString();
+            kvp["external_host_name"] = ExternalHostName;
+            kvp["http_port"] = HttpPort.ToString();
+            kvp["internal_ip_address"] = InternalEndPoint.Address.ToString();
+            kvp["internal_port"] = InternalEndPoint.Port.ToString();
+            kvp["alternate_ports"] = m_allow_alternate_ports.ToString();
+            kvp["server_uri"] = ServerURI;
+            return kvp;
+        }
+        public SimpleRegionInfo(Dictionary<string, object> kvp)
+        {
+            if ((kvp["external_ip_address"] != null) && (kvp["external_port"] != null))
+            {
+                int port = 0;
+                Int32.TryParse((string)kvp["external_port"], out port);
+                IPEndPoint ep = new IPEndPoint(IPAddress.Parse((string)kvp["external_ip_address"]), port);
+                ExternalEndPoint = ep;
+            }
+            else
+                ExternalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), 0);
+            if (kvp["external_host_name"] != null)
+                ExternalHostName = (string)kvp["external_host_name"];
+            if (kvp["http_port"] != null)
+            {
+                UInt32 port = 0;
+                UInt32.TryParse((string)kvp["http_port"], out port);
+                HttpPort = port;
+            }
+            if ((kvp["internal_ip_address"] != null) && (kvp["internal_port"] != null))
+            {
+                int port = 0;
+                Int32.TryParse((string)kvp["internal_port"], out port);
+                IPEndPoint ep = new IPEndPoint(IPAddress.Parse((string)kvp["internal_ip_address"]), port);
+                InternalEndPoint = ep;
+            }
+            else
+                InternalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), 0);
+            if (kvp["alternate_ports"] != null)
+            {
+                bool alts = false;
+                Boolean.TryParse((string)kvp["alternate_ports"], out alts);
+                m_allow_alternate_ports = alts;
+            }
+            if (kvp["server_uri"] != null)
+                ServerURI = (string)kvp["server_uri"];
+        }
+    }
    public class RegionInfo
    {
        // private static readonly log4net.ILog m_log
@@ -73,6 +355,7 @@ namespace OpenSim.Framework
        private bool m_clampPrimSize = false;
        private int m_objectCapacity = 0;
        private string m_regionType = String.Empty;
+        private RegionMeta7WindlightData m_windlight = new RegionMeta7WindlightData();
        protected uint m_httpPort;
        protected string m_serverURI;
        protected string m_regionName = String.Empty;
@@ -211,6 +494,21 @@ namespace OpenSim.Framework
            set { m_regionSettings = value; }
        }
+        public RegionMeta7WindlightData WindlightSettings
+        {
+            get
+            {
+                if (m_windlight == null)
+                {
+                    m_windlight = new RegionMeta7WindlightData();
+                }
+                return m_windlight;
+            }
+            set { m_windlight = value; }
+        }
        public int NonphysPrimMax
        {
            get { return m_nonphysPrimMax; }
diff --git a/OpenSim/Framework/Servers/VersionInfo.cs b/OpenSim/Framework/Servers/VersionInfo.cs
index ec94b2d..d348c90 100644
--- a/OpenSim/Framework/Servers/VersionInfo.cs
+++ b/OpenSim/Framework/Servers/VersionInfo.cs
@@ -29,9 +29,8 @@ namespace OpenSim
 {
    public class VersionInfo
    {
-        private const string VERSION_NUMBER = "0.6.9";
+        private const string VERSION_NUMBER = "0.6.9CM";
        private const Flavour VERSION_FLAVOUR = Flavour.Dev;
        public enum Flavour
        {
            Unknown,
diff --git a/OpenSim/Framework/TaskInventoryDictionary.cs b/OpenSim/Framework/TaskInventoryDictionary.cs
index 25ae6b0..4b9a509 100644
--- a/OpenSim/Framework/TaskInventoryDictionary.cs
+++ b/OpenSim/Framework/TaskInventoryDictionary.cs
@@ -27,9 +27,12 @@
 using System;
 using System.Collections.Generic;
+using System.Threading;
+using System.Reflection;
 using System.Xml;
 using System.Xml.Schema;
 using System.Xml.Serialization;
+using log4net;
 using OpenMetaverse;
 namespace OpenSim.Framework
@@ -45,6 +48,111 @@ namespace OpenSim.Framework
        // private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
        private static XmlSerializer tiiSerializer = new XmlSerializer(typeof (TaskInventoryItem));
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        
+        private Thread LockedByThread;
+        /// <value>
+        /// An advanced lock for inventory data
+        /// </value>
+        private System.Threading.ReaderWriterLockSlim m_itemLock = new System.Threading.ReaderWriterLockSlim();
+        /// <summary>
+        /// Are we readlocked by the calling thread?
+        /// </summary>
+        public bool IsReadLockedByMe()
+        {
+            if (m_itemLock.RecursiveReadCount > 0)
+            {
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+        /// <summary>
+        /// Lock our inventory list for reading (many can read, one can write)
+        /// </summary>
+        public void LockItemsForRead(bool locked)
+        {
+            if (locked)
+            {
+                if (m_itemLock.IsWriteLockHeld && LockedByThread != null)
+                {
+                    if (!LockedByThread.IsAlive)
+                    {
+                        //Locked by dead thread, reset.
+                        m_itemLock = new System.Threading.ReaderWriterLockSlim(); 
+                    }
+                }
+                if (m_itemLock.RecursiveReadCount > 0)
+                {
+                    m_log.Error("[TaskInventoryDictionary] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue.");
+                    m_itemLock.ExitReadLock();
+                }
+                if (m_itemLock.RecursiveWriteCount > 0)
+                {
+                    m_log.Error("[TaskInventoryDictionary] Recursive write lock requested. This should not happen and means something needs to be fixed.");
+                    m_itemLock.ExitWriteLock();
+                }
+                
+                while (!m_itemLock.TryEnterReadLock(60000))
+                {
+                    m_log.Error("Thread lock detected while trying to aquire READ lock in TaskInventoryDictionary. Locked by thread " + LockedByThread.Name + ". I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed.");
+                    if (m_itemLock.IsWriteLockHeld)
+                    {
+                        m_itemLock = new System.Threading.ReaderWriterLockSlim();
+                    }
+                }
+            }
+            else
+            {
+                if (m_itemLock.RecursiveReadCount>0)
+                {
+                    m_itemLock.ExitReadLock();
+                }
+            }
+        }
+        /// <summary>
+        /// Lock our inventory list for writing (many can read, one can write)
+        /// </summary>
+        public void LockItemsForWrite(bool locked)
+        {
+            if (locked)
+            {
+                //Enter a write lock, wait indefinately for one to open.
+                if (m_itemLock.RecursiveReadCount > 0)
+                {
+                    m_log.Error("[TaskInventoryDictionary] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue.");
+                    m_itemLock.ExitReadLock();
+                }
+                if (m_itemLock.RecursiveWriteCount > 0)
+                {
+                    m_log.Error("[TaskInventoryDictionary] Recursive write lock requested. This should not happen and means something needs to be fixed.");
+                    m_itemLock.ExitWriteLock();
+                }
+                while (!m_itemLock.TryEnterWriteLock(60000))
+                {
+                    m_log.Error("Thread lock detected while trying to aquire WRITE lock in TaskInventoryDictionary. Locked by thread " + LockedByThread.Name + ". I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed.");
+                    if (m_itemLock.IsWriteLockHeld)
+                    {
+                        m_itemLock = new System.Threading.ReaderWriterLockSlim();
+                    }
+                }
+                LockedByThread = Thread.CurrentThread;
+            }
+            else
+            {
+                if (m_itemLock.RecursiveWriteCount > 0)
+                {
+                    m_itemLock.ExitWriteLock();
+                }
+            }
+        }
        #region ICloneable Members
@@ -52,13 +160,12 @@ namespace OpenSim.Framework
        {
            TaskInventoryDictionary clone = new TaskInventoryDictionary();
-            lock (this)
+            m_itemLock.EnterReadLock();
+            foreach (UUID uuid in Keys)
            {
-                foreach (UUID uuid in Keys)
+                clone.Add(uuid, (TaskInventoryItem) this[uuid].Clone());
-                {
-                    clone.Add(uuid, (TaskInventoryItem) this[uuid].Clone());
-                }
            }
+            m_itemLock.ExitReadLock();
            return clone;
        }
diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 1112497..b5e2872 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -990,19 +990,19 @@ namespace OpenSim.Framework
        {
            string os = String.Empty;
-            if (Environment.OSVersion.Platform != PlatformID.Unix)
+//            if (Environment.OSVersion.Platform != PlatformID.Unix)
-            {
+//            {
-                os = Environment.OSVersion.ToString();
+//                os = Environment.OSVersion.ToString();
-            }
+//            }
-            else
+//            else
-            {
+//            {
-                os = ReadEtcIssue();
+//                os = ReadEtcIssue();
-            }
+//            }
-                      
+//                      
-            if (os.Length > 45)
+//            if (os.Length > 45)
-            {
+//            {
-                os = os.Substring(0, 45);
+//                os = os.Substring(0, 45);
-            }
+//            }
            
            return os;
        }
diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs b/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
index fba5090..2b5e632 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
@@ -770,16 +770,16 @@ namespace OpenSim.Region.ClientStack.LindenUDP
            }
        }
-        public void SendGenericMessage(string method, List<string> message)
+        public void SendGenericMessage(string method, List<byte[]> message)
        {
            GenericMessagePacket gmp = new GenericMessagePacket();
            gmp.MethodData.Method = Util.StringToBytes256(method);
            gmp.ParamList = new GenericMessagePacket.ParamListBlock[message.Count];
            int i = 0;
-            foreach (string val in message)
+            foreach (byte[] val in message)
            {
                gmp.ParamList[i] = new GenericMessagePacket.ParamListBlock();
-                gmp.ParamList[i++].Parameter = Util.StringToBytes256(val);
+                gmp.ParamList[i++].Parameter = val;
            }
            OutPacket(gmp, ThrottleOutPacketType.Task);
        }
@@ -791,6 +791,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
        public virtual void SendLayerData(float[] map)
        {
            Util.FireAndForget(DoSendLayerData, map);
+            // Send it sync, and async. It's not that much data
+            // and it improves user experience just so much!
+            DoSendLayerData(map);
        }
        /// <summary>
@@ -803,16 +807,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
            try
            {
-                //for (int y = 0; y < 16; y++)
+                for (int y = 0; y < 16; y++)
-                //{
+                {
-                //    for (int x = 0; x < 16; x++)
+                    for (int x = 0; x < 16; x+=4)
-                //    {
+                    {
-                //        SendLayerData(x, y, map);
+                        SendLayerPacket(x, y, map);
-                //    }
+                    }
-                //}
+                }
-                // Send LayerData in a spiral pattern. Fun!
-                SendLayerTopRight(map, 0, 0, 15, 15);
            }
            catch (Exception e)
            {
@@ -820,51 +821,35 @@ namespace OpenSim.Region.ClientStack.LindenUDP
            }
        }
-        private void SendLayerTopRight(float[] map, int x1, int y1, int x2, int y2)
-        {
-            // Row
-            for (int i = x1; i <= x2; i++)
-                SendLayerData(i, y1, map);
-            // Column
-            for (int j = y1 + 1; j <= y2; j++)
-                SendLayerData(x2, j, map);
-            if (x2 - x1 > 0)
-                SendLayerBottomLeft(map, x1, y1 + 1, x2 - 1, y2);
-        }
-        void SendLayerBottomLeft(float[] map, int x1, int y1, int x2, int y2)
-        {
-            // Row in reverse
-            for (int i = x2; i >= x1; i--)
-                SendLayerData(i, y2, map);
-            // Column in reverse
-            for (int j = y2 - 1; j >= y1; j--)
-                SendLayerData(x1, j, map);
-            if (x2 - x1 > 0)
-                SendLayerTopRight(map, x1 + 1, y1, x2, y2 - 1);
-        }
        /// <summary>
        /// Sends a set of four patches (x, x+1, ..., x+3) to the client
        /// </summary>
        /// <param name="map">heightmap</param>
        /// <param name="px">X coordinate for patches 0..12</param>
        /// <param name="py">Y coordinate for patches 0..15</param>
-        // private void SendLayerPacket(float[] map, int y, int x)
+        private void SendLayerPacket(int x, int y, float[] map)
-        // {
+        {
-        //     int[] patches = new int[4];
+            int[] patches = new int[4];
-        //     patches[0] = x + 0 + y * 16;
+            patches[0] = x + 0 + y * 16;
-        //     patches[1] = x + 1 + y * 16;
+            patches[1] = x + 1 + y * 16;
-        //     patches[2] = x + 2 + y * 16;
+            patches[2] = x + 2 + y * 16;
-        //     patches[3] = x + 3 + y * 16;
+            patches[3] = x + 3 + y * 16;
-        //     Packet layerpack = LLClientView.TerrainManager.CreateLandPacket(map, patches);
+            float[] heightmap = (map.Length == 65536) ?
-        //     OutPacket(layerpack, ThrottleOutPacketType.Land);
+                map :
-        // }
+                LLHeightFieldMoronize(map);
+            try
+            {
+                Packet layerpack = TerrainCompressor.CreateLandPacket(heightmap, patches);
+                OutPacket(layerpack, ThrottleOutPacketType.Land);
+            }
+            catch
+            {
+                for (int px = x ; px < x + 4 ; px++)
+                    SendLayerData(px, y, map);
+            }
+        }
        /// <summary>
        /// Sends a specified patch to a client
@@ -3142,7 +3127,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
            objupdate.ObjectData = new ObjectUpdatePacket.ObjectDataBlock[1];
            objupdate.ObjectData[0] = CreateAvatarUpdateBlock(data);
            OutPacket(objupdate, ThrottleOutPacketType.Task);
        }
@@ -3193,8 +3177,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                    terse.ObjectData[i] = m_avatarTerseUpdates.Dequeue();
            }
-            // HACK: Using the task category until the tiered reprioritization code is in
+            OutPacket(terse, ThrottleOutPacketType.State);
-            OutPacket(terse, ThrottleOutPacketType.Task);
        }
        public void SendCoarseLocationUpdate(List<UUID> users, List<Vector3> CoarseLocations)
diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
index 338f2bb..85961b9 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
@@ -402,6 +402,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
            #region Queue or Send
            OutgoingPacket outgoingPacket = new OutgoingPacket(udpClient, buffer, category);
+            outgoingPacket.Type = type;
            if (!outgoingPacket.Client.EnqueueOutgoing(outgoingPacket))
                SendPacketFinal(outgoingPacket);
@@ -513,6 +514,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
            byte flags = buffer.Data[0];
            bool isResend = (flags & Helpers.MSG_RESENT) != 0;
            bool isReliable = (flags & Helpers.MSG_RELIABLE) != 0;
+            bool sendSynchronous = false;
            LLUDPClient udpClient = outgoingPacket.Client;
            if (!udpClient.IsConnected)
@@ -568,9 +570,28 @@ namespace OpenSim.Region.ClientStack.LindenUDP
            if (isReliable)
                Interlocked.Add(ref udpClient.UnackedBytes, outgoingPacket.Buffer.DataLength);
-            // Put the UDP payload on the wire
+            //Some packet types need to be sent synchonously.
-            AsyncBeginSend(buffer);
+            //Sorry, i know it's not optimal, but until the LL client
+            //manages packets correctly and re-orders them as required, this is necessary.
+            
+            // Put the UDP payload on the wire
+            if (outgoingPacket.Type == PacketType.ImprovedTerseObjectUpdate)
+            {
+                SyncBeginPrioritySend(buffer, 2); // highest priority
+            }
+            else if (outgoingPacket.Type == PacketType.ObjectUpdate
+                || outgoingPacket.Type == PacketType.LayerData)
+            {
+                SyncBeginPrioritySend(buffer, 1); // medium priority
+            }
+            else
+            {
+                SyncBeginPrioritySend(buffer, 0); // normal priority
+            }
+            
+            //AsyncBeginSend(buffer);
+            
            // Keep track of when this packet was sent out (right now)
            outgoingPacket.TickCount = Environment.TickCount & Int32.MaxValue;
        }
@@ -851,7 +872,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
            Buffer.BlockCopy(packetData, 0, buffer.Data, 0, length);
-            AsyncBeginSend(buffer);
+            SyncBeginPrioritySend(buffer, 1); //Setting this to a medium priority should help minimise resends
        }
        private bool IsClientAuthorized(UseCircuitCodePacket useCircuitCode, out AuthenticateResponse sessionInfo)
diff --git a/OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs b/OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs
index d2779ba..de2cd24 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs
@@ -29,6 +29,7 @@ using System;
 using System.Net;
 using System.Net.Sockets;
 using System.Threading;
+using System.Collections.Generic;
 using log4net;
 namespace OpenMetaverse
@@ -52,12 +53,30 @@ namespace OpenMetaverse
        /// <summary>Local IP address to bind to in server mode</summary>
        protected IPAddress m_localBindAddress;
+        /// <summary>
+        /// Standard queue for our outgoing SyncBeginPrioritySend
+        /// </summary>
+        private List<UDPPacketBuffer> m_standardQueue = new List<UDPPacketBuffer>();
+        /// <summary>
+        /// Medium priority queue for our outgoing SyncBeginPrioritySend
+        /// </summary>
+        private List<UDPPacketBuffer> m_mediumPriorityQueue = new List<UDPPacketBuffer>();
+        /// <summary>
+        /// Prioritised queue for our outgoing SyncBeginPrioritySend
+        /// </summary>
+        private List<UDPPacketBuffer> m_priorityQueue = new List<UDPPacketBuffer>();
        /// <summary>UDP socket, used in either client or server mode</summary>
        private Socket m_udpSocket;
        /// <summary>Flag to process packets asynchronously or synchronously</summary>
        private bool m_asyncPacketHandling;
+        /// <summary>Are we currently sending data asynchronously?</summary>
+        private volatile bool m_sendingData = false;
        /// <summary>The all important shutdown flag</summary>
        private volatile bool m_shutdownFlag = true;
@@ -246,7 +265,51 @@ namespace OpenMetaverse
            }
        }
-        public void AsyncBeginSend(UDPPacketBuffer buf)
+        public void SyncBeginPrioritySend(UDPPacketBuffer buf, int Priority)
+        {
+            if (!m_shutdownFlag)
+            {
+                if (!m_sendingData)
+                {
+                    m_sendingData = true;
+                    try
+                    {
+                        AsyncBeginSend(buf);
+                    }
+                    catch (SocketException) { }
+                    catch (ObjectDisposedException) { }
+                }
+                else
+                {
+                    if (Priority == 2)
+                    {
+                        lock (m_priorityQueue)
+                        {
+                            m_priorityQueue.Add(buf);
+                        }
+                    }
+                    else
+                    {
+                        if (Priority != 0)
+                        {
+                            lock (m_mediumPriorityQueue)
+                            {
+                                m_mediumPriorityQueue.Add(buf);
+                            }
+                        }
+                        else
+                        {
+                            lock (m_standardQueue)
+                            {
+                                m_standardQueue.Add(buf);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        private void AsyncBeginSend(UDPPacketBuffer buf)
        {
            if (!m_shutdownFlag)
            {
@@ -270,8 +333,48 @@ namespace OpenMetaverse
        {
            try
            {
-//                UDPPacketBuffer buf = (UDPPacketBuffer)result.AsyncState;
                m_udpSocket.EndSendTo(result);
+                if (m_sendingData)
+                {
+                    lock (m_priorityQueue)
+                    {
+                        if (m_priorityQueue.Count > 0)
+                        {
+                            UDPPacketBuffer buf = m_priorityQueue[0];
+                            m_priorityQueue.RemoveAt(0);
+                            AsyncBeginSend(buf);
+                        }
+                        else
+                        {
+                            lock (m_mediumPriorityQueue)
+                            {
+                                if (m_mediumPriorityQueue.Count > 0)
+                                {
+                                    UDPPacketBuffer buf = m_mediumPriorityQueue[0];
+                                    m_mediumPriorityQueue.RemoveAt(0);
+                                    AsyncBeginSend(buf);
+                                }
+                                else
+                                {
+                                    lock (m_standardQueue)
+                                    {
+                                        if (m_standardQueue.Count > 0)
+                                        {
+                                            UDPPacketBuffer buf = m_standardQueue[0];
+                                            m_standardQueue.RemoveAt(0);
+                                            AsyncBeginSend(buf);
+                                        }
+                                        else
+                                        {
+                                            m_sendingData = false;
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
            }
            catch (SocketException) { }
            catch (ObjectDisposedException) { }
diff --git a/OpenSim/Region/ClientStack/LindenUDP/OutgoingPacket.cs b/OpenSim/Region/ClientStack/LindenUDP/OutgoingPacket.cs
index 1a1a1cb..7dc42d3 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/OutgoingPacket.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/OutgoingPacket.cs
@@ -28,6 +28,7 @@
 using System;
 using OpenSim.Framework;
 using OpenMetaverse;
+using OpenMetaverse.Packets;
 namespace OpenSim.Region.ClientStack.LindenUDP
 {
@@ -52,7 +53,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
        public int TickCount;
        /// <summary>Category this packet belongs to</summary>
        public ThrottleOutPacketType Category;
+        /// <summary>The type of packet so its delivery method can be determined</summary>
+        public PacketType Type;
        /// <summary>
        /// Default constructor
        /// </summary>
diff --git a/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs b/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
index 6dacbba..e3e8718 100644
--- a/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
@@ -49,7 +49,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
        private int m_shoutdistance = 100;
        private int m_whisperdistance = 10;
        private List<Scene> m_scenes = new List<Scene>();
+        private string m_adminPrefix = "";
        internal object m_syncy = new object();
        internal IConfig m_config;
@@ -76,6 +76,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
            m_whisperdistance = config.Configs["Chat"].GetInt("whisper_distance", m_whisperdistance);
            m_saydistance = config.Configs["Chat"].GetInt("say_distance", m_saydistance);
            m_shoutdistance = config.Configs["Chat"].GetInt("shout_distance", m_shoutdistance);
+            m_adminPrefix = config.Configs["Chat"].GetString("admin_prefix", "");
        }
        public virtual void AddRegion(Scene scene)
@@ -185,6 +186,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
        protected virtual void DeliverChatToAvatars(ChatSourceType sourceType, OSChatMessage c)
        {
            string fromName = c.From;
+            string fromNamePrefix = "";
            UUID fromID = UUID.Zero;
            string message = c.Message;
            IScene scene = c.Scene;
@@ -207,7 +209,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                fromPos = avatar.AbsolutePosition;
                fromName = avatar.Name;
                fromID = c.Sender.AgentId;
+                if (avatar.GodLevel > 200)
+                {
+                    fromNamePrefix = m_adminPrefix;
+                }
                break;
            case ChatSourceType.Object:
@@ -227,7 +232,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                s.ForEachScenePresence(
                    delegate(ScenePresence presence)
                    {
-                        TrySendChatMessage(presence, fromPos, regionPos, fromID, fromName, c.Type, message, sourceType);
+                        TrySendChatMessage(presence, fromPos, regionPos, fromID, fromNamePrefix+fromName, c.Type, message, sourceType);
                    }
                );
            }
@@ -266,25 +271,29 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
            }
            
            // m_log.DebugFormat("[CHAT] Broadcast: fromID {0} fromName {1}, cType {2}, sType {3}", fromID, fromName, cType, sourceType);
+            if (c.Scene != null)
-            ((Scene)c.Scene).ForEachScenePresence(
+            {
-                delegate(ScenePresence presence)
+                ((Scene)c.Scene).ForEachScenePresence
-                {
+                (
-                    // ignore chat from child agents
+                    delegate(ScenePresence presence)
-                    if (presence.IsChildAgent) return;
+                    {
-                    
+                        // ignore chat from child agents
-                    IClientAPI client = presence.ControllingClient;
+                        if (presence.IsChildAgent) return;
-                    
+                        
-                    // don't forward SayOwner chat from objects to
+                        IClientAPI client = presence.ControllingClient;
-                    // non-owner agents
+                        
-                    if ((c.Type == ChatTypeEnum.Owner) &&
+                        // don't forward SayOwner chat from objects to
-                        (null != c.SenderObject) &&
+                        // non-owner agents
-                        (((SceneObjectPart)c.SenderObject).OwnerID != client.AgentId))
+                        if ((c.Type == ChatTypeEnum.Owner) &&
-                        return;
+                            (null != c.SenderObject) &&
-                    
+                            (((SceneObjectPart)c.SenderObject).OwnerID != client.AgentId))
-                    client.SendChatMessage(c.Message, (byte)cType, CenterOfRegion, fromName, fromID, 
+                            return;
-                                           (byte)sourceType, (byte)ChatAudibleLevel.Fully);
+                        
-                });
+                        client.SendChatMessage(c.Message, (byte)cType, CenterOfRegion, fromName, fromID, 
+                                               (byte)sourceType, (byte)ChatAudibleLevel.Fully);
+                    }
+                );
+             }
        }
diff --git a/OpenSim/Region/CoreModules/Avatar/InstantMessage/OfflineMessageModule.cs b/OpenSim/Region/CoreModules/Avatar/InstantMessage/OfflineMessageModule.cs
index 1614b70..7f9e5af 100644
--- a/OpenSim/Region/CoreModules/Avatar/InstantMessage/OfflineMessageModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/InstantMessage/OfflineMessageModule.cs
@@ -164,19 +164,22 @@ namespace OpenSim.Region.CoreModules.Avatar.InstantMessage
            List<GridInstantMessage>msglist = SynchronousRestObjectPoster.BeginPostObject<UUID, List<GridInstantMessage>>(
                    "POST", m_RestURL+"/RetrieveMessages/", client.AgentId);
-            foreach (GridInstantMessage im in msglist)
+            if (msglist != null)
            {
-                // client.SendInstantMessage(im);
+                foreach (GridInstantMessage im in msglist)
+                {
-                // Send through scene event manager so all modules get a chance
+                    // client.SendInstantMessage(im);
-                // to look at this message before it gets delivered.
-                //
+                    // Send through scene event manager so all modules get a chance
-                // Needed for proper state management for stored group
+                    // to look at this message before it gets delivered.
-                // invitations
+                    //
-                //
+                    // Needed for proper state management for stored group
-                Scene s = FindScene(client.AgentId);
+                    // invitations
-                if (s != null)
+                    //
-                    s.EventManager.TriggerIncomingInstantMessage(im);
+                    Scene s = FindScene(client.AgentId);
+                    if (s != null)
+                        s.EventManager.TriggerIncomingInstantMessage(im);
+                }
            }
        }
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
index d9a021f..b60b32b 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
@@ -389,7 +389,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
        {
            // Check if this is ours to handle
            //
-            m_log.Info("OnFridInstantMessage");
+            //m_log.Info("OnFridInstantMessage");
            if (msg.dialog != (byte) InstantMessageDialog.InventoryOffered)
                return;
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Interregion/RESTInterregionComms.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Interregion/RESTInterregionComms.cs
index 710e3ca..39e2413 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Interregion/RESTInterregionComms.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Interregion/RESTInterregionComms.cs
@@ -331,12 +331,11 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Interregion
        {
            //m_log.Debug("[CONNECTION DEBUGGING]: AgentHandler Called");
-            m_log.Debug("---------------------------");
+/*            m_log.Debug("---------------------------");
            m_log.Debug(" >> uri=" + request["uri"]);
            m_log.Debug(" >> content-type=" + request["content-type"]);
            m_log.Debug(" >> http-method=" + request["http-method"]);
-            m_log.Debug("---------------------------\n");
+            m_log.Debug("---------------------------\n");                                       */
            Hashtable responsedata = new Hashtable();
            responsedata["content_type"] = "text/html";
            responsedata["keepalive"] = false;
@@ -576,11 +575,11 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Interregion
        {
            m_log.Debug("[CONNECTION DEBUGGING]: ObjectHandler Called");
-            m_log.Debug("---------------------------");
+ /*           m_log.Debug("---------------------------");
            m_log.Debug(" >> uri=" + request["uri"]);
            m_log.Debug(" >> content-type=" + request["content-type"]);
            m_log.Debug(" >> http-method=" + request["http-method"]);
-            m_log.Debug("---------------------------\n");
+            m_log.Debug("---------------------------\n");                                       */
            Hashtable responsedata = new Hashtable();
            responsedata["content_type"] = "text/html";
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
index af72968..3c0997c 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
@@ -247,21 +247,20 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                    // Fix ownership/creator of inventory items
                    // Not doing so results in inventory items
                    // being no copy/no mod for everyone
-                    lock (part.TaskInventory)
+                    part.TaskInventory.LockItemsForRead(true);
+                    TaskInventoryDictionary inv = part.TaskInventory;
+                    foreach (KeyValuePair<UUID, TaskInventoryItem> kvp in inv)
                    {
-                        TaskInventoryDictionary inv = part.TaskInventory;
+                        if (!ResolveUserUuid(kvp.Value.OwnerID))
-                        foreach (KeyValuePair<UUID, TaskInventoryItem> kvp in inv)
                        {
-                            if (!ResolveUserUuid(kvp.Value.OwnerID))
+                            kvp.Value.OwnerID = masterAvatarId;
-                            {
+                        }
-                                kvp.Value.OwnerID = masterAvatarId;
+                        if (!ResolveUserUuid(kvp.Value.CreatorID))
-                            }
+                        {
-                            if (!ResolveUserUuid(kvp.Value.CreatorID))
+                            kvp.Value.CreatorID = masterAvatarId;
-                            {
-                                kvp.Value.CreatorID = masterAvatarId;
-                            }
                        }
                    }
+                    part.TaskInventory.LockItemsForRead(false);
                }
                if (m_scene.AddRestoredSceneObject(sceneObject, true, false))
diff --git a/OpenSim/Region/CoreModules/World/Meta7Windlight/Meta7WindlightModule.cs b/OpenSim/Region/CoreModules/World/Meta7Windlight/Meta7WindlightModule.cs
new file mode 100644
index 0000000..f180b47
--- /dev/null
+++ b/OpenSim/Region/CoreModules/World/Meta7Windlight/Meta7WindlightModule.cs
@@ -0,0 +1,245 @@
+/*
+ * Copyright (c) Thomas Grimshaw and Magne Metaverse Research
+ *  
+ * This module is not open source. All rights reserved.
+ * Unauthorised copying, distribution or public display is prohibited.
+ *
+ */
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using OpenMetaverse;
+using log4net;
+using Nini.Config;
+using OpenSim.Data;
+using OpenSim.Framework;
+using OpenSim.Region.CoreModules.Framework.InterfaceCommander;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+namespace OpenSim.Region.CoreModules.World.Meta7Windlight
+{
+    public class Meta7WindlightModule : IRegionModule, ICommandableModule
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        private readonly Commander m_commander = new Commander("windlight");
+        private Scene m_scene;
+        private static bool m_enableWindlight;
+        #region ICommandableModule Members
+        public ICommander CommandInterface
+        {
+            get { return m_commander; }
+        }
+        #endregion
+        #region IRegionModule Members
+        public static bool EnableWindlight
+        {
+            get
+            {
+                return m_enableWindlight;
+            }
+            set
+            {
+            }
+        }
+        public void Initialise(Scene scene, IConfigSource config)
+        {
+            m_scene = scene;
+            m_scene.RegisterModuleInterface<IRegionModule>(this);
+            m_scene.EventManager.OnPluginConsole += EventManager_OnPluginConsole;
+            
+            // ini file settings
+            try
+            {
+                m_enableWindlight = config.Configs["Meta7Windlight"].GetBoolean("enable_windlight", false);
+            }
+            catch (Exception)
+            {
+                m_log.Debug("[WINDLIGHT]: ini failure for enable_windlight - using default");
+            }
+            if (m_enableWindlight)
+            {
+                m_scene.EventManager.OnMakeRootAgent += EventManager_OnMakeRootAgent;
+                m_scene.EventManager.OnSaveNewWindlightProfile += EventManager_OnSaveNewWindlightProfile;
+            }
+            InstallCommands();
+            m_log.Debug("[WINDLIGHT]: Initialised windlight module");
+        }
+        public void SendProfileToClient(ScenePresence presence)
+        {
+            if (m_enableWindlight)
+            {
+                if (presence.IsChildAgent == false)
+                {
+                    IClientAPI client = presence.ControllingClient;
+                    RegionMeta7WindlightData wl = m_scene.RegionInfo.WindlightSettings;
+                    byte[] mBlock = new Byte[249];
+                    int pos = 0;
+                    wl.waterColor.ToBytes(mBlock, 0); pos += 12;
+                    Utils.FloatToBytes(wl.waterFogDensityExponent).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.underwaterFogModifier).CopyTo(mBlock, pos); pos += 4;
+                    wl.reflectionWaveletScale.ToBytes(mBlock, pos); pos += 12;
+                    Utils.FloatToBytes(wl.fresnelScale).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.fresnelOffset).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.refractScaleAbove).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.refractScaleBelow).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.blurMultiplier).CopyTo(mBlock, pos); pos += 4;
+                    wl.bigWaveDirection.ToBytes(mBlock, pos); pos += 8;
+                    wl.littleWaveDirection.ToBytes(mBlock, pos); pos += 8;
+                    wl.normalMapTexture.ToBytes(mBlock, pos); pos += 16;
+                    wl.horizon.ToBytes(mBlock, pos); pos += 16;
+                    Utils.FloatToBytes(wl.hazeHorizon).CopyTo(mBlock, pos); pos += 4;
+                    wl.blueDensity.ToBytes(mBlock, pos); pos += 16;
+                    Utils.FloatToBytes(wl.hazeDensity).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.densityMultiplier).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.distanceMultiplier).CopyTo(mBlock, pos); pos += 4;
+                    wl.sunMoonColor.ToBytes(mBlock, pos); pos += 16;
+                    Utils.FloatToBytes(wl.sunMoonPosition).CopyTo(mBlock, pos); pos += 4;
+                    wl.ambient.ToBytes(mBlock, pos); pos += 16;
+                    Utils.FloatToBytes(wl.eastAngle).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.sunGlowFocus).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.sunGlowSize).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.sceneGamma).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.starBrightness).CopyTo(mBlock, pos); pos += 4;
+                    wl.cloudColor.ToBytes(mBlock, pos); pos += 16;
+                    wl.cloudXYDensity.ToBytes(mBlock, pos); pos += 12;
+                    Utils.FloatToBytes(wl.cloudCoverage).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.cloudScale).CopyTo(mBlock, pos); pos += 4;
+                    wl.cloudDetailXYDensity.ToBytes(mBlock, pos); pos += 12;
+                    Utils.FloatToBytes(wl.cloudScrollX).CopyTo(mBlock, pos); pos += 4;
+                    Utils.FloatToBytes(wl.cloudScrollY).CopyTo(mBlock, pos); pos += 4;
+                    Utils.UInt16ToBytes(wl.maxAltitude).CopyTo(mBlock, pos); pos += 2;
+                    mBlock[pos] = Convert.ToByte(wl.cloudScrollXLock); pos++;
+                    mBlock[pos] = Convert.ToByte(wl.cloudScrollYLock); pos++;
+                    mBlock[pos] = Convert.ToByte(wl.drawClassicClouds); pos++;
+                    List<byte[]> param = new List<byte[]>();
+                    param.Add(mBlock);
+                    client.SendGenericMessage("Windlight", param);
+                }
+            }
+            else
+            {
+                //We probably don't want to spam chat with this.. probably
+                //m_log.Debug("[WINDLIGHT]: Module disabled");
+            }
+        }
+        private void EventManager_OnMakeRootAgent(ScenePresence presence)
+        {
+            m_log.Debug("[WINDLIGHT]: Sending windlight scene to new client");
+            SendProfileToClient(presence);
+        }
+        private void EventManager_OnSaveNewWindlightProfile()
+        {
+            m_scene.ForEachScenePresence(SendProfileToClient);
+        }
+        public void PostInitialise()
+        {
+        }
+        public void Close()
+        {
+        }
+        public string Name
+        {
+            get { return "Meta7WindlightModule"; }
+        }
+        public bool IsSharedModule
+        {
+            get { return false; }
+        }
+        #endregion
+        #region events
+        #endregion
+        #region ICommandableModule Members
+        private void InstallCommands()
+        {
+            Command wlload = new Command("load", CommandIntentions.COMMAND_NON_HAZARDOUS, HandleLoad, "Load windlight profile from the database and broadcast");
+            Command wlenable = new Command("enable", CommandIntentions.COMMAND_NON_HAZARDOUS, HandleEnable, "Enable the windlight plugin");
+            Command wldisable = new Command("disable", CommandIntentions.COMMAND_NON_HAZARDOUS, HandleDisable, "Enable the windlight plugin");
+            m_commander.RegisterCommand("load", wlload);
+            m_commander.RegisterCommand("enable", wlenable);
+            m_commander.RegisterCommand("disable", wldisable);
+            m_scene.RegisterModuleCommander(m_commander);
+        }
+        private void HandleLoad(Object[] args)
+        {
+            if (!m_enableWindlight)
+            {
+                m_log.InfoFormat("[WINDLIGHT]: Cannot load windlight profile, module disabled. Use 'windlight enable' first.");
+            }
+            else
+            {
+                m_log.InfoFormat("[WINDLIGHT]: Loading Windlight profile from database");
+                m_scene.LoadWindlightProfile();
+                m_log.InfoFormat("[WINDLIGHT]: Load complete");
+            }
+        }
+        private void HandleDisable(Object[] args)
+        {
+            m_log.InfoFormat("[WINDLIGHT]: Plugin now disabled");
+            m_enableWindlight=false;
+        }
+        private void HandleEnable(Object[] args)
+        {
+            m_log.InfoFormat("[WINDLIGHT]: Plugin now enabled");
+            m_enableWindlight = true;
+        }
+        /// <summary>
+        /// Processes commandline input. Do not call directly.
+        /// </summary>
+        /// <param name="args">Commandline arguments</param>
+        private void EventManager_OnPluginConsole(string[] args)
+        {
+            if (args[0] == "windlight")
+            {
+                if (args.Length == 1)
+                {
+                    m_commander.ProcessConsoleCommand("add", new string[0]);
+                    return;
+                }
+                string[] tmpArgs = new string[args.Length - 2];
+                int i;
+                for (i = 2; i < args.Length; i++)
+                {
+                    tmpArgs[i - 2] = args[i];
+                }
+                m_commander.ProcessConsoleCommand(args[1], tmpArgs);
+            }
+        }
+        #endregion
+    }
+}
diff --git a/OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs b/OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs
index 9754da3..816060f 100644
--- a/OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs
+++ b/OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs
@@ -433,7 +433,7 @@ namespace OpenSim.Region.Examples.SimpleModule
            
        }
-        public void SendGenericMessage(string method, List<string> message)
+        public void SendGenericMessage(string method, List<byte[]> message)
        {
        }
diff --git a/OpenSim/Region/Framework/Interfaces/IRegionDataStore.cs b/OpenSim/Region/Framework/Interfaces/IRegionDataStore.cs
index 78bd622..7312799 100644
--- a/OpenSim/Region/Framework/Interfaces/IRegionDataStore.cs
+++ b/OpenSim/Region/Framework/Interfaces/IRegionDataStore.cs
@@ -103,6 +103,8 @@ namespace OpenSim.Region.Framework.Interfaces
        void StoreRegionSettings(RegionSettings rs);
        RegionSettings LoadRegionSettings(UUID regionUUID);
+        RegionMeta7WindlightData LoadRegionWindlightSettings(UUID regionUUID);
+        void StoreRegionWindlightSettings(RegionMeta7WindlightData wl);
        void Shutdown();
    }
diff --git a/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs b/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
index a459ffa..50624a1 100644
--- a/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
+++ b/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
@@ -53,8 +53,8 @@ namespace OpenSim.Region.Framework.Scenes.Animation
        {
            get { return m_movementAnimation; }
        }
-        protected string m_movementAnimation = "DEFAULT";
+ //       protected string m_movementAnimation = "DEFAULT";     //KF: 'DEFAULT' does not exist!
+        protected string m_movementAnimation = "CROUCH";                //KF: CROUCH ensures reliable Av Anim. init.
        private int m_animTickFall;
        private int m_animTickJump;
        
@@ -123,17 +123,22 @@ namespace OpenSim.Region.Framework.Scenes.Animation
        /// </summary>
        public void TrySetMovementAnimation(string anim)
        {
-            //m_log.DebugFormat("Updating movement animation to {0}", anim);
+//Console.WriteLine("Updating movement animation to {0}", anim);
            if (!m_scenePresence.IsChildAgent)
            {
                if (m_animations.TrySetDefaultAnimation(
                    anim, m_scenePresence.ControllingClient.NextAnimationSequenceNumber, UUID.Zero))
                {
+//Console.WriteLine("TSMA {0} success.", anim);    
                    // 16384 is CHANGED_ANIMATION
                    m_scenePresence.SendScriptEventToAttachments("changed", new Object[] { 16384 });
                    SendAnimPack();
                }
+                else
+                {
+//Console.WriteLine("TSMA {0} fail.", anim);                   
+                                }
            }
        }
@@ -156,10 +161,10 @@ namespace OpenSim.Region.Framework.Scenes.Animation
            Vector3 left = Vector3.Transform(Vector3.UnitY, rotMatrix);
            // Check control flags
-            bool heldForward = (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_AT_POS) == AgentManager.ControlFlags.AGENT_CONTROL_AT_POS;
+            bool heldForward = ((controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_AT_POS) == AgentManager.ControlFlags.AGENT_CONTROL_AT_POS || (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_AT_POS) == AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_AT_POS);
-            bool heldBack = (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_AT_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_AT_NEG;
+            bool heldBack = ((controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_AT_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_AT_NEG || (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_AT_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_AT_NEG);
-            bool heldLeft = (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_LEFT_POS) == AgentManager.ControlFlags.AGENT_CONTROL_LEFT_POS;
+            bool heldLeft = ((controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_LEFT_POS) == AgentManager.ControlFlags.AGENT_CONTROL_LEFT_POS || (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_LEFT_POS) == AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_LEFT_POS);
-            bool heldRight = (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_LEFT_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_LEFT_NEG;
+            bool heldRight = ((controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_LEFT_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_LEFT_NEG || (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_LEFT_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_LEFT_NEG);
            //bool heldTurnLeft = (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_TURN_LEFT) == AgentManager.ControlFlags.AGENT_CONTROL_TURN_LEFT;
            //bool heldTurnRight = (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_TURN_RIGHT) == AgentManager.ControlFlags.AGENT_CONTROL_TURN_RIGHT;
            bool heldUp = (controlFlags & AgentManager.ControlFlags.AGENT_CONTROL_UP_POS) == AgentManager.ControlFlags.AGENT_CONTROL_UP_POS;
@@ -312,7 +317,7 @@ namespace OpenSim.Region.Framework.Scenes.Animation
        public void UpdateMovementAnimations()
        {
            m_movementAnimation = GetMovementAnimation();
+//Console.WriteLine("UMA got {0}", m_movementAnimation);
            if (m_movementAnimation == "PREJUMP" && !m_scenePresence.Scene.m_usePreJump)
            {
                // This was the previous behavior before PREJUMP
@@ -450,4 +455,4 @@ namespace OpenSim.Region.Framework.Scenes.Animation
            m_scenePresence = null;
        }
    }
-}
-\ No newline at end of file
+}
diff --git a/OpenSim/Region/Framework/Scenes/EntityManager.cs b/OpenSim/Region/Framework/Scenes/EntityManager.cs
index 099fcce..c246e32 100644
--- a/OpenSim/Region/Framework/Scenes/EntityManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EntityManager.cs
@@ -40,7 +40,7 @@ namespace OpenSim.Region.Framework.Scenes
        private readonly Dictionary<UUID,EntityBase> m_eb_uuid = new Dictionary<UUID, EntityBase>();
        private readonly Dictionary<uint, EntityBase> m_eb_localID = new Dictionary<uint, EntityBase>();
        //private readonly Dictionary<UUID, ScenePresence> m_pres_uuid = new Dictionary<UUID, ScenePresence>();
-        private readonly Object m_lock = new Object();
+        private System.Threading.ReaderWriterLockSlim m_lock = new System.Threading.ReaderWriterLockSlim();
        [Obsolete("Use Add() instead.")]
        public void Add(UUID id, EntityBase eb)
@@ -50,7 +50,8 @@ namespace OpenSim.Region.Framework.Scenes
        public void Add(EntityBase entity)
        {
-            lock (m_lock)
+            m_lock.EnterWriteLock();
+            try
            {
                try
                {
@@ -62,11 +63,16 @@ namespace OpenSim.Region.Framework.Scenes
                    m_log.ErrorFormat("Add Entity failed: {0}", e.Message);
                }
            }
+            finally
+            {
+                m_lock.ExitWriteLock();
+            }
        }
        public void InsertOrReplace(EntityBase entity)
        {
-            lock (m_lock)
+            m_lock.EnterWriteLock();
+            try
            {
                try
                {
@@ -78,15 +84,24 @@ namespace OpenSim.Region.Framework.Scenes
                    m_log.ErrorFormat("Insert or Replace Entity failed: {0}", e.Message);
                }
            }
+            finally
+            {
+                m_lock.ExitWriteLock();
+            }
        }
        public void Clear()
        {
-            lock (m_lock)
+            m_lock.EnterWriteLock();
+            try
            {
                m_eb_uuid.Clear();
                m_eb_localID.Clear();
            }
+            finally
+            {
+                m_lock.ExitWriteLock();
+            }
        }
        public int Count
@@ -123,7 +138,8 @@ namespace OpenSim.Region.Framework.Scenes
        public bool Remove(uint localID)
        {
-            lock (m_lock)
+            m_lock.EnterWriteLock();
+            try
            {
                try
                {
@@ -141,11 +157,16 @@ namespace OpenSim.Region.Framework.Scenes
                    return false;
                }
            }
+            finally
+            {
+                m_lock.ExitWriteLock();
+            }
        }
        public bool Remove(UUID id)
        {
-            lock (m_lock)
+            m_lock.EnterWriteLock();
+            try
            {
                try 
                {
@@ -163,13 +184,18 @@ namespace OpenSim.Region.Framework.Scenes
                    return false;
                }
            }
+            finally
+            {
+                m_lock.ExitWriteLock();
+            }
        }
        public List<EntityBase> GetAllByType<T>()
        {
            List<EntityBase> tmp = new List<EntityBase>();
-            lock (m_lock)
+            m_lock.EnterReadLock();
+            try
            {
                try
                {
@@ -187,23 +213,33 @@ namespace OpenSim.Region.Framework.Scenes
                    tmp = null;
                }
            }
+            finally
+            {
+                m_lock.ExitReadLock();
+            }
            return tmp;
        }
        public List<EntityBase> GetEntities()
        {
-            lock (m_lock)
+            m_lock.EnterReadLock();
+            try
            {
                return new List<EntityBase>(m_eb_uuid.Values);
            }
+            finally
+            {
+                m_lock.ExitReadLock();
+            }
        }
        public EntityBase this[UUID id]
        {
            get
            {
-                lock (m_lock)
+                m_lock.EnterReadLock();
+                try
                {
                    EntityBase entity;
                    if (m_eb_uuid.TryGetValue(id, out entity))
@@ -211,6 +247,10 @@ namespace OpenSim.Region.Framework.Scenes
                    else
                        return null;
                }
+                finally
+                {
+                    m_lock.ExitReadLock();
+                }
            }
            set
            {
@@ -222,7 +262,8 @@ namespace OpenSim.Region.Framework.Scenes
        {
            get
            {
-                lock (m_lock)
+                m_lock.EnterReadLock();
+                try
                {
                    EntityBase entity;
                    if (m_eb_localID.TryGetValue(localID, out entity))
@@ -230,6 +271,10 @@ namespace OpenSim.Region.Framework.Scenes
                    else
                        return null;
                }
+                finally
+                {
+                    m_lock.ExitReadLock();
+                }
            }
            set
            {
@@ -239,18 +284,28 @@ namespace OpenSim.Region.Framework.Scenes
        public bool TryGetValue(UUID key, out EntityBase obj)
        {
-            lock (m_lock)
+            m_lock.EnterReadLock();
+            try
            {
                return m_eb_uuid.TryGetValue(key, out obj);
            }
+            finally
+            {
+                m_lock.ExitReadLock();
+            }
        }
        public bool TryGetValue(uint key, out EntityBase obj)
        {
-            lock (m_lock)
+            m_lock.EnterReadLock();
+            try
            {
                return m_eb_localID.TryGetValue(key, out obj);
            }
+            finally
+            {
+                m_lock.ExitReadLock();
+            }
        }
        /// <summary>
diff --git a/OpenSim/Region/Framework/Scenes/EventManager.cs b/OpenSim/Region/Framework/Scenes/EventManager.cs
index 753344d..a86e263 100644
--- a/OpenSim/Region/Framework/Scenes/EventManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EventManager.cs
@@ -193,7 +193,9 @@ namespace OpenSim.Region.Framework.Scenes
        public event OnMakeChildAgentDelegate OnMakeChildAgent;
        public delegate void OnMakeRootAgentDelegate(ScenePresence presence);
+        public delegate void OnSaveNewWindlightProfileDelegate();
        public event OnMakeRootAgentDelegate OnMakeRootAgent;
+        public event OnSaveNewWindlightProfileDelegate OnSaveNewWindlightProfile;
        public delegate void NewInventoryItemUploadComplete(UUID avatarID, UUID assetID, string name, int userlevel);
@@ -411,6 +413,7 @@ namespace OpenSim.Region.Framework.Scenes
        private IncomingInstantMessage handlerUnhandledInstantMessage = null; //OnUnhandledInstantMessage;
        private ClientClosed handlerClientClosed = null; //OnClientClosed;
        private OnMakeChildAgentDelegate handlerMakeChildAgent = null; //OnMakeChildAgent;
+        private OnSaveNewWindlightProfileDelegate handlerSaveNewWindlightProfile = null; //OnSaveNewWindlightProfile;
        private OnMakeRootAgentDelegate handlerMakeRootAgent = null; //OnMakeRootAgent;
        private OnTerrainTickDelegate handlerTerrainTick = null; // OnTerainTick;
        private RegisterCapsEvent handlerRegisterCaps = null; // OnRegisterCaps;
@@ -772,6 +775,15 @@ namespace OpenSim.Region.Framework.Scenes
            }
        }
+        public void TriggerOnSaveNewWindlightProfile()
+        {
+            handlerSaveNewWindlightProfile = OnSaveNewWindlightProfile;
+            if (handlerSaveNewWindlightProfile != null)
+            {
+                handlerSaveNewWindlightProfile();
+            }
+        }
        public void TriggerOnMakeRootAgent(ScenePresence presence)
        {
            handlerMakeRootAgent = OnMakeRootAgent;
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index 0b0c205..7ca779a 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -840,8 +840,12 @@ namespace OpenSim.Region.Framework.Scenes
        public void RemoveTaskInventory(IClientAPI remoteClient, UUID itemID, uint localID)
        {
            SceneObjectPart part = GetSceneObjectPart(localID);
-            SceneObjectGroup group = part.ParentGroup;
+            SceneObjectGroup group = null;
-            if (group != null)
+            if (part != null)
+            {
+                group = part.ParentGroup;
+            }            
+            if (part != null && group != null)
            {
                TaskInventoryItem item = group.GetInventoryItem(localID, itemID);
                if (item == null)
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index a22fb5f..1b275b0 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -539,6 +539,8 @@ namespace OpenSim.Region.Framework.Scenes
            // Load region settings
            m_regInfo.RegionSettings = m_storageManager.DataStore.LoadRegionSettings(m_regInfo.RegionID);
+            m_regInfo.WindlightSettings = m_storageManager.DataStore.LoadRegionWindlightSettings(m_regInfo.RegionID);
            if (m_storageManager.EstateDataStore != null)
            {
                m_regInfo.EstateSettings = m_storageManager.EstateDataStore.LoadEstateSettings(m_regInfo.RegionID);
@@ -881,6 +883,15 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="seconds">float indicating duration before restart.</param>
        public virtual void Restart(float seconds)
        {
+            Restart(seconds, true);
+        }
+        /// <summary>
+        /// Given float seconds, this will restart the region. showDialog will optionally alert the users.
+        /// </summary>
+        /// <param name="seconds">float indicating duration before restart.</param>
+        public virtual void Restart(float seconds, bool showDialog)
+        {
            // notifications are done in 15 second increments
            // so ..   if the number of seconds is less then 15 seconds, it's not really a restart request
            // It's a 'Cancel restart' request.
@@ -901,8 +912,11 @@ namespace OpenSim.Region.Framework.Scenes
                m_restartTimer.Elapsed += new ElapsedEventHandler(RestartTimer_Elapsed);
                m_log.Info("[REGION]: Restarting Region in " + (seconds / 60) + " minutes");
                m_restartTimer.Start();
-                m_dialogModule.SendNotificationToUsersInRegion(
+                if (showDialog)
-                    UUID.Random(), String.Empty, RegionInfo.RegionName + ": Restarting in 2 Minutes");
+                {
+                    m_dialogModule.SendNotificationToUsersInRegion(
+                    UUID.Random(), String.Empty, RegionInfo.RegionName + ": Restarting in " + (seconds / 60).ToString() + " Minutes");
+                }
            }
        }
@@ -1173,16 +1187,16 @@ namespace OpenSim.Region.Framework.Scenes
                    // Check if any objects have reached their targets
                    CheckAtTargets();
-                    // Update SceneObjectGroups that have scheduled themselves for updates
-                    // Objects queue their updates onto all scene presences
-                    if (m_frame % m_update_objects == 0)
-                        m_sceneGraph.UpdateObjectGroups();
                    // Run through all ScenePresences looking for updates
                    // Presence updates and queued object updates for each presence are sent to clients
                    if (m_frame % m_update_presences == 0)
                        m_sceneGraph.UpdatePresences();
+                    // Update SceneObjectGroups that have scheduled themselves for updates
+                    // Objects queue their updates onto all scene presences
+                    if (m_frame % m_update_objects == 0)
+                        m_sceneGraph.UpdateObjectGroups();
                    int tmpPhysicsMS2 = Util.EnvironmentTickCount();
                    if ((m_frame % m_update_physics == 0) && m_physics_enabled)
                        m_sceneGraph.UpdatePreparePhysics();
@@ -1490,6 +1504,19 @@ namespace OpenSim.Region.Framework.Scenes
        {
            m_storageManager.DataStore.StoreTerrain(Heightmap.GetDoubles(), RegionInfo.RegionID);
        }
+        
+        public void StoreWindlightProfile(RegionMeta7WindlightData wl)
+        {
+            m_regInfo.WindlightSettings = wl;
+            m_storageManager.DataStore.StoreRegionWindlightSettings(wl);
+            m_eventManager.TriggerOnSaveNewWindlightProfile();
+        }
+        public void LoadWindlightProfile()
+        {
+            m_regInfo.WindlightSettings = m_storageManager.DataStore.LoadRegionWindlightSettings(RegionInfo.RegionID);
+            m_eventManager.TriggerOnSaveNewWindlightProfile();
+        }
        /// <summary>
        /// Loads the World heightmap
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index cb87212..eacd219 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -98,6 +98,72 @@ namespace OpenSim.Region.Framework.Scenes
        private bool m_hasGroupChanged = false;
        private long timeFirstChanged;
        private long timeLastChanged;
+        private System.Threading.ReaderWriterLockSlim m_partsLock = new System.Threading.ReaderWriterLockSlim();
+        public void lockPartsForRead(bool locked)
+        {
+            if (locked)
+            {
+                if (m_partsLock.RecursiveReadCount > 0)
+                {
+                    m_log.Error("[SceneObjectGroup.m_parts] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue.");
+                    m_partsLock.ExitReadLock();
+                }
+                if (m_partsLock.RecursiveWriteCount > 0)
+                {
+                    m_log.Error("[SceneObjectGroup.m_parts] Recursive read lock requested. This should not happen and means something needs to be fixed.");
+                    m_partsLock.ExitWriteLock();
+                }
+                while (!m_partsLock.TryEnterReadLock(60000))
+                {
+                    m_log.Error("[SceneObjectGroup.m_parts] Thread lock detected while trying to aquire READ lock of m_parts in SceneObjectGroup. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed.");
+                    if (m_partsLock.IsWriteLockHeld)
+                    {
+                        m_partsLock = new System.Threading.ReaderWriterLockSlim();
+                    }
+                }
+            }
+            else
+            {
+                if (m_partsLock.RecursiveReadCount > 0)
+                {
+                    m_partsLock.ExitReadLock();
+                }
+            }
+        }
+        public void lockPartsForWrite(bool locked)
+        {
+            if (locked)
+            {
+                if (m_partsLock.RecursiveReadCount > 0)
+                {
+                    m_log.Error("[SceneObjectGroup.m_parts] Recursive write lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue.");
+                    m_partsLock.ExitReadLock();
+                }
+                if (m_partsLock.RecursiveWriteCount > 0)
+                {
+                    m_log.Error("[SceneObjectGroup.m_parts] Recursive write lock requested. This should not happen and means something needs to be fixed.");
+                    m_partsLock.ExitWriteLock();
+                }
+                while (!m_partsLock.TryEnterWriteLock(60000))
+                {
+                    m_log.Error("[SceneObjectGroup.m_parts] Thread lock detected while trying to aquire WRITE lock of m_scripts in XEngine. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed.");
+                    if (m_partsLock.IsWriteLockHeld)
+                    {
+                        m_partsLock = new System.Threading.ReaderWriterLockSlim();
+                    }
+                }
+            }
+            else
+            {
+                if (m_partsLock.RecursiveWriteCount > 0)
+                {
+                    m_partsLock.ExitWriteLock();
+                }
+            }
+        }
        public bool HasGroupChanged
        {
@@ -243,13 +309,16 @@ namespace OpenSim.Region.Framework.Scenes
            set
            {
                m_regionHandle = value;
-                lock (m_parts)
+                lockPartsForRead(true);
                {
                    foreach (SceneObjectPart part in m_parts.Values)
                    {
+                        
                        part.RegionHandle = m_regionHandle;
+                        
                    }
                }
+                lockPartsForRead(false);
            }
        }
@@ -275,13 +344,16 @@ namespace OpenSim.Region.Framework.Scenes
                    m_scene.CrossPrimGroupIntoNewRegion(val, this, true);
                }
-                lock (m_parts)
+                lockPartsForRead(true);
                {
                    foreach (SceneObjectPart part in m_parts.Values)
                    {
+                        
                        part.GroupPosition = val;
+                        
                    }
                }
+                lockPartsForRead(false);
                //if (m_rootPart.PhysActor != null)
                //{
@@ -432,13 +504,16 @@ namespace OpenSim.Region.Framework.Scenes
        public void SetFromItemID(UUID AssetId)
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    part.FromItemID = AssetId;
+                    
                }
            }
+            lockPartsForRead(false);
        }
        public UUID GetFromItemID()
@@ -505,10 +580,11 @@ namespace OpenSim.Region.Framework.Scenes
            Vector3 maxScale = Vector3.Zero;
            Vector3 finalScale = new Vector3(0.5f, 0.5f, 0.5f);
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    Vector3 partscale = part.Scale;
                    Vector3 partoffset = part.OffsetPosition;
@@ -519,8 +595,11 @@ namespace OpenSim.Region.Framework.Scenes
                    maxScale.X = (partscale.X + partoffset.X > maxScale.X) ? partscale.X + partoffset.X : maxScale.X;
                    maxScale.Y = (partscale.Y + partoffset.Y > maxScale.Y) ? partscale.Y + partoffset.Y : maxScale.Y;
                    maxScale.Z = (partscale.Z + partoffset.Z > maxScale.Z) ? partscale.Z + partoffset.Z : maxScale.Z;
+                    
                }
            }
+            lockPartsForRead(false);
            finalScale.X = (minScale.X > maxScale.X) ? minScale.X : maxScale.X;
            finalScale.Y = (minScale.Y > maxScale.Y) ? minScale.Y : maxScale.Y;
            finalScale.Z = (minScale.Z > maxScale.Z) ? minScale.Z : maxScale.Z;
@@ -536,10 +615,11 @@ namespace OpenSim.Region.Framework.Scenes
            EntityIntersection result = new EntityIntersection();
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    // Temporary commented to stop compiler warning
                    //Vector3 partPosition =
                    //    new Vector3(part.AbsolutePosition.X, part.AbsolutePosition.Y, part.AbsolutePosition.Z);
@@ -567,8 +647,10 @@ namespace OpenSim.Region.Framework.Scenes
                            result.distance = inter.distance;
                        }
                    }
+                    
                }
            }
+            lockPartsForRead(false);
            return result;
        }
@@ -581,10 +663,11 @@ namespace OpenSim.Region.Framework.Scenes
        public Vector3 GetAxisAlignedBoundingBox(out float offsetHeight)
        {
            float maxX = -256f, maxY = -256f, maxZ = -256f, minX = 256f, minY = 256f, minZ = 256f;
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    Vector3 worldPos = part.GetWorldPosition();
                    Vector3 offset = worldPos - AbsolutePosition;
                    Quaternion worldRot;
@@ -643,6 +726,8 @@ namespace OpenSim.Region.Framework.Scenes
                    backBottomRight.Y = orig.Y + (part.Scale.Y / 2);
                    backBottomRight.Z = orig.Z - (part.Scale.Z / 2);
+                    
                    //m_log.InfoFormat("pre corner 1 is {0} {1} {2}", frontTopLeft.X, frontTopLeft.Y, frontTopLeft.Z);
                    //m_log.InfoFormat("pre corner 2 is {0} {1} {2}", frontTopRight.X, frontTopRight.Y, frontTopRight.Z);
                    //m_log.InfoFormat("pre corner 3 is {0} {1} {2}", frontBottomRight.X, frontBottomRight.Y, frontBottomRight.Z);
@@ -814,6 +899,7 @@ namespace OpenSim.Region.Framework.Scenes
                        minZ = backBottomLeft.Z;
                }
            }
+            lockPartsForRead(false);
            Vector3 boundingBox = new Vector3(maxX - minX, maxY - minY, maxZ - minZ);
@@ -842,17 +928,20 @@ namespace OpenSim.Region.Framework.Scenes
            Dictionary<UUID,string> states = new Dictionary<UUID,string>();
            // Capture script state while holding the lock
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    Dictionary<UUID,string> pstates = part.Inventory.GetScriptStates();
                    foreach (UUID itemid in pstates.Keys)
                    {
                        states.Add(itemid, pstates[itemid]);
                    }
+                    
                }
            }
+            lockPartsForRead(false);
            if (states.Count > 0)
            {
@@ -1014,13 +1103,16 @@ namespace OpenSim.Region.Framework.Scenes
        public override void UpdateMovement()
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    part.UpdateMovement();
+                    
                }
            }
+            lockPartsForRead(false);
        }
        public ushort GetTimeDilation()
@@ -1064,7 +1156,7 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="part"></param>
        public void AddPart(SceneObjectPart part)
        {
-            lock (m_parts)
+            lockPartsForWrite(true);
            {
                part.SetParent(this);
                m_parts.Add(part.UUID, part);
@@ -1074,6 +1166,7 @@ namespace OpenSim.Region.Framework.Scenes
                if (part.LinkNum == 2 && RootPart != null)
                    RootPart.LinkNum = 1;
            }
+            lockPartsForWrite(false);
        }
        /// <summary>
@@ -1081,28 +1174,33 @@ namespace OpenSim.Region.Framework.Scenes
        /// </summary>
        private void UpdateParentIDs()
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    if (part.UUID != m_rootPart.UUID)
                    {
                        part.ParentID = m_rootPart.LocalId;
                    }
+                    
                }
            }
+            lockPartsForRead(false);
        }
        public void RegenerateFullIDs()
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    part.UUID = UUID.Random();
+                    
                }
            }
+            lockPartsForRead(false);
        }
        // helper provided for parts.
@@ -1183,29 +1281,33 @@ namespace OpenSim.Region.Framework.Scenes
            DetachFromBackup();
-            lock (m_parts)
+            lockPartsForRead(true);
+            List<SceneObjectPart> values = new List<SceneObjectPart>(m_parts.Values);
+            lockPartsForRead(false);
+            
+            foreach (SceneObjectPart part in values)
            {
-                foreach (SceneObjectPart part in m_parts.Values)
-                {
 //                    part.Inventory.RemoveScriptInstances();
+                
-                    ScenePresence[] avatars = Scene.GetScenePresences();
+                ScenePresence[] avatars = Scene.GetScenePresences();
-                    for (int i = 0; i < avatars.Length; i++)
+                for (int i = 0; i < avatars.Length; i++)
+                {
+                    if (avatars[i].ParentID == LocalId)
                    {
-                        if (avatars[i].ParentID == LocalId)
+                        avatars[i].StandUp();
-                        {
+                    }
-                            avatars[i].StandUp();
-                        }
-                        if (!silent)
+                    if (!silent)
-                        {
+                    {
-                            part.UpdateFlag = 0;
+                        part.UpdateFlag = 0;
-                            if (part == m_rootPart)
+                        if (part == m_rootPart)
-                                avatars[i].ControllingClient.SendKillObject(m_regionHandle, part.LocalId);
+                            avatars[i].ControllingClient.SendKillObject(m_regionHandle, part.LocalId);
-                        }
                    }
                }
+                
            }
+            
+          
        }
        public void AddScriptLPS(int count)
@@ -1230,17 +1332,20 @@ namespace OpenSim.Region.Framework.Scenes
            scriptEvents aggregateScriptEvents=0;
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    if (part == null)
                        continue;
                    if (part != RootPart)
                        part.ObjectFlags = objectflagupdate;
                    aggregateScriptEvents |= part.AggregateScriptEvents;
+                    
                }
            }
+            lockPartsForRead(false);
            m_scriptListens_atTarget = ((aggregateScriptEvents & scriptEvents.at_target) != 0);
            m_scriptListens_notAtTarget = ((aggregateScriptEvents & scriptEvents.not_at_target) != 0);
@@ -1273,42 +1378,52 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="m_physicalPrim"></param>
        public void ApplyPhysics(bool m_physicalPrim)
        {
-            lock (m_parts)
+            lockPartsForRead(true);
+            
+            if (m_parts.Count > 1)
            {
-                if (m_parts.Count > 1)
+                List<SceneObjectPart> values = new List<SceneObjectPart>(m_parts.Values);
+                lockPartsForRead(false);
+                m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive, m_physicalPrim);
+                foreach (SceneObjectPart part in values)
                {
-                    m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive, m_physicalPrim);
+                    
-                    foreach (SceneObjectPart part in m_parts.Values)
+                    if (part.LocalId != m_rootPart.LocalId)
                    {
-                        if (part.LocalId != m_rootPart.LocalId)
+                        part.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), part.VolumeDetectActive, m_physicalPrim);
-                        {
-                            part.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), part.VolumeDetectActive, m_physicalPrim);
-                        }
                    }
                    
-                    // Hack to get the physics scene geometries in the right spot
-                    ResetChildPrimPhysicsPositions();
-                }
-                else
-                {
-                    m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive, m_physicalPrim);
                }
+                // Hack to get the physics scene geometries in the right spot
+                ResetChildPrimPhysicsPositions();
+            }
+            else
+            {
+                lockPartsForRead(false);
+                m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive, m_physicalPrim);
            }
        }
        public void SetOwnerId(UUID userId)
        {
-            ForEachPart(delegate(SceneObjectPart part) { part.OwnerID = userId; });
+                ForEachPart(delegate(SceneObjectPart part) 
+                {
+                    
+                    part.OwnerID = userId;
+                    
+                });
        }
        public void ForEachPart(Action<SceneObjectPart> whatToDo)
        {
-            lock (m_parts)
+            lockPartsForRead(true);
+            List<SceneObjectPart> values = new List<SceneObjectPart>(m_parts.Values);
+            lockPartsForRead(false);    
+            foreach (SceneObjectPart part in values)
            {
-                foreach (SceneObjectPart part in m_parts.Values)
+                
-                {
+                whatToDo(part);
-                    whatToDo(part);
+                
-                }
            }
        }
@@ -1407,14 +1522,17 @@ namespace OpenSim.Region.Framework.Scenes
        {
            SendPartFullUpdate(remoteClient, RootPart, m_scene.Permissions.GenerateClientFlags(remoteClient.AgentId, RootPart.UUID));
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    if (part != RootPart)
                        SendPartFullUpdate(remoteClient, part, m_scene.Permissions.GenerateClientFlags(remoteClient.AgentId, part.UUID));
+                    
                }
            }
+            lockPartsForRead(false);
        }
        /// <summary>
@@ -1509,10 +1627,11 @@ namespace OpenSim.Region.Framework.Scenes
            
            List<SceneObjectPart> partList;
-            lock (m_parts)
+            lockPartsForRead(true);
-            {
+            
-                partList = new List<SceneObjectPart>(m_parts.Values);
+            partList = new List<SceneObjectPart>(m_parts.Values);
-            }
+            
+            lockPartsForRead(false);
            
            partList.Sort(delegate(SceneObjectPart p1, SceneObjectPart p2)
                {
@@ -1735,6 +1854,45 @@ namespace OpenSim.Region.Framework.Scenes
            }
        }
+        public void rotLookAt(Quaternion target, float strength, float damping)
+        {
+            SceneObjectPart rootpart = m_rootPart;
+            if (rootpart != null)
+            {
+                if (IsAttachment)
+                {
+                /*
+                    ScenePresence avatar = m_scene.GetScenePresence(rootpart.AttachedAvatar);
+                    if (avatar != null)
+                    {
+                    Rotate the Av?
+                    } */
+                }
+                else
+                {
+                    if (rootpart.PhysActor != null)
+                    {
+                        rootpart.PhysActor.APIDTarget = new Quaternion(target.X, target.Y, target.Z, target.W);
+                        rootpart.PhysActor.APIDStrength = strength;
+                        rootpart.PhysActor.APIDDamping = damping;
+                        rootpart.PhysActor.APIDActive = true;
+                    }
+                }
+            }
+        }
+        public void stopLookAt()
+        {
+            SceneObjectPart rootpart = m_rootPart;
+            if (rootpart != null)
+            {
+                if (rootpart.PhysActor != null)
+                {
+                    rootpart.PhysActor.APIDActive = false;
+                }
+            }
+        
+        }
        /// <summary>
        /// Uses a PID to attempt to clamp the object on the Z axis at the given height over tau seconds.
        /// </summary>
@@ -1796,10 +1954,11 @@ namespace OpenSim.Region.Framework.Scenes
            SceneObjectPart newPart = part.Copy(m_scene.AllocateLocalId(), OwnerID, GroupID, m_parts.Count, userExposed);
            newPart.SetParent(this);
-            lock (m_parts)
+            lockPartsForWrite(true);
            {
                m_parts.Add(newPart.UUID, newPart);
            }
+            lockPartsForWrite(false);
            SetPartAsNonRoot(newPart);
@@ -1862,7 +2021,7 @@ namespace OpenSim.Region.Framework.Scenes
            //if ((RootPart.Flags & PrimFlags.TemporaryOnRez) != 0)
            //    return;
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                bool UsePhysics = ((RootPart.Flags & PrimFlags.Physics) != 0);
@@ -1880,34 +2039,43 @@ namespace OpenSim.Region.Framework.Scenes
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    part.SendScheduledUpdates();
+                    
                }
            }
+            lockPartsForRead(false);
        }
        public void ScheduleFullUpdateToAvatar(ScenePresence presence)
        {
            RootPart.AddFullUpdateToAvatar(presence);
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    if (part != RootPart)
                        part.AddFullUpdateToAvatar(presence);
+                    
                }
            }
+            lockPartsForRead(false);
        }
        public void ScheduleTerseUpdateToAvatar(ScenePresence presence)
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    part.AddTerseUpdateToAvatar(presence);
+                    
                }
            }
+            lockPartsForRead(false);
        }
        /// <summary>
@@ -1918,14 +2086,17 @@ namespace OpenSim.Region.Framework.Scenes
            checkAtTargets();
            RootPart.ScheduleFullUpdate();
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    if (part != RootPart)
                        part.ScheduleFullUpdate();
+                    
                }
            }
+            lockPartsForRead(false);
        }
        /// <summary>
@@ -1933,13 +2104,16 @@ namespace OpenSim.Region.Framework.Scenes
        /// </summary>
        public void ScheduleGroupForTerseUpdate()
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    part.ScheduleTerseUpdate();
+                    
                }
            }
+            lockPartsForRead(false);
        }
        /// <summary>
@@ -1952,14 +2126,17 @@ namespace OpenSim.Region.Framework.Scenes
            
            RootPart.SendFullUpdateToAllClients();
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
+                    
                    if (part != RootPart)
                        part.SendFullUpdateToAllClients();
+                    
                }
            }
+            lockPartsForRead(false);
        }
        /// <summary>
@@ -1990,14 +2167,15 @@ namespace OpenSim.Region.Framework.Scenes
        {
            if (IsDeleted)
                return;
-            
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
                    part.SendTerseUpdateToAllClients();
                }
            }
+            lockPartsForRead(false);
        }
        #endregion
@@ -2011,16 +2189,18 @@ namespace OpenSim.Region.Framework.Scenes
        /// <returns>null if no child part with that linknum or child part</returns>
        public SceneObjectPart GetLinkNumPart(int linknum)
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
                    if (part.LinkNum == linknum)
                    {
+                        lockPartsForRead(false);
                        return part;
                    }
                }
            }
+            lockPartsForRead(false);
            return null;
        }
@@ -2048,17 +2228,19 @@ namespace OpenSim.Region.Framework.Scenes
        public SceneObjectPart GetChildPart(uint localID)
        {
            //m_log.DebugFormat("Entered looking for {0}", localID);
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
                    //m_log.DebugFormat("Found {0}", part.LocalId);
                    if (part.LocalId == localID)
                    {
+                        lockPartsForRead(false);
                        return part;
                    }
                }
            }
+            lockPartsForRead(false);
            return null;
        }
@@ -2088,17 +2270,19 @@ namespace OpenSim.Region.Framework.Scenes
        public bool HasChildPrim(uint localID)
        {
            //m_log.DebugFormat("Entered HasChildPrim looking for {0}", localID);
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
                    //m_log.DebugFormat("Found {0}", part.LocalId);
                    if (part.LocalId == localID)
                    {
+                        lockPartsForRead(false);
                        return true;
                    }
                }
            }
+            lockPartsForRead(false);
            return false;
        }
@@ -2148,53 +2332,57 @@ namespace OpenSim.Region.Framework.Scenes
            if (m_rootPart.LinkNum == 0)
                m_rootPart.LinkNum = 1;
-            lock (m_parts)
+            lockPartsForWrite(true);
-            {
+            
-                m_parts.Add(linkPart.UUID, linkPart);
+            m_parts.Add(linkPart.UUID, linkPart);
+            lockPartsForWrite(false);
-                // Insert in terms of link numbers, the new links
+            // Insert in terms of link numbers, the new links
-                // before the current ones (with the exception of 
+            // before the current ones (with the exception of 
-                // the root prim. Shuffle the old ones up
+            // the root prim. Shuffle the old ones up
-                foreach (KeyValuePair<UUID, SceneObjectPart> kvp in m_parts) 
+            lockPartsForRead(true);
+            foreach (KeyValuePair<UUID, SceneObjectPart> kvp in m_parts) 
+            {
+                if (kvp.Value.LinkNum != 1)
                {
-                    if (kvp.Value.LinkNum != 1)
+                    // Don't update root prim link number
-                    {
+                    kvp.Value.LinkNum += objectGroup.PrimCount;
-                        // Don't update root prim link number
-                        kvp.Value.LinkNum += objectGroup.PrimCount;
-                    }
                }
+            }
+            lockPartsForRead(false);
-                linkPart.LinkNum = 2;
+            linkPart.LinkNum = 2;
-                linkPart.SetParent(this);
+            linkPart.SetParent(this);
-                linkPart.AddFlag(PrimFlags.CreateSelected);
+            linkPart.AddFlag(PrimFlags.CreateSelected);
-                //if (linkPart.PhysActor != null)
+            //if (linkPart.PhysActor != null)
-                //{
+            //{
-                // m_scene.PhysicsScene.RemovePrim(linkPart.PhysActor);
+            // m_scene.PhysicsScene.RemovePrim(linkPart.PhysActor);
-        
+    
-                //linkPart.PhysActor = null;
+            //linkPart.PhysActor = null;
-                //}
+            //}
-                //TODO: rest of parts
+            //TODO: rest of parts
-                int linkNum = 3;
+            int linkNum = 3;
-                foreach (SceneObjectPart part in objectGroup.Children.Values)
+            foreach (SceneObjectPart part in objectGroup.Children.Values)
+            {
+                if (part.UUID != objectGroup.m_rootPart.UUID)
                {
-                    if (part.UUID != objectGroup.m_rootPart.UUID)
+                    LinkNonRootPart(part, oldGroupPosition, oldRootRotation, linkNum++);
-                    {
-                        LinkNonRootPart(part, oldGroupPosition, oldRootRotation, linkNum++);
-                    }
-                    part.ClearUndoState();
                }
+                part.ClearUndoState();
            }
            m_scene.UnlinkSceneObject(objectGroup.UUID, true);
            objectGroup.m_isDeleted = true;
+            objectGroup.lockPartsForWrite(true);
            
-            lock (objectGroup.m_parts)
+            objectGroup.m_parts.Clear();
-            {
+            
-                objectGroup.m_parts.Clear();
+            objectGroup.lockPartsForWrite(false);
-            }
            
            // Can't do this yet since backup still makes use of the root part without any synchronization
 //            objectGroup.m_rootPart = null;
@@ -2253,11 +2441,12 @@ namespace OpenSim.Region.Framework.Scenes
            Quaternion worldRot = linkPart.GetWorldRotation();
            // Remove the part from this object
-            lock (m_parts)
+            lockPartsForWrite(true);
            {
                m_parts.Remove(linkPart.UUID);
            }
+            lockPartsForWrite(false);
+            lockPartsForRead(true);
            if (m_parts.Count == 1 && RootPart != null) //Single prim is left
                RootPart.LinkNum = 0;
            else
@@ -2268,6 +2457,7 @@ namespace OpenSim.Region.Framework.Scenes
                        p.LinkNum--;
                }
            }
+            lockPartsForRead(false);
            linkPart.ParentID = 0;
            linkPart.LinkNum = 0;
@@ -2585,9 +2775,12 @@ namespace OpenSim.Region.Framework.Scenes
            if (selectionPart != null)
            {
-                lock (m_parts)
+                lockPartsForRead(true);
+                List<SceneObjectPart> parts = new List<SceneObjectPart>(m_parts.Values);
+                lockPartsForRead(false);
+                foreach (SceneObjectPart part in parts)
                {
-                    foreach (SceneObjectPart part in m_parts.Values)
+                    if (part.Scale.X > 10.0 || part.Scale.Y > 10.0 || part.Scale.Z > 10.0)
                    {
                        if (part.Scale.X > m_scene.RegionInfo.PhysPrimMax || 
                            part.Scale.Y > m_scene.RegionInfo.PhysPrimMax ||
@@ -2597,12 +2790,13 @@ namespace OpenSim.Region.Framework.Scenes
                            break;
                        }
                    }
+                }
-                    foreach (SceneObjectPart part in m_parts.Values)
+                foreach (SceneObjectPart part in parts)
-                    {
+                {
-                        part.UpdatePrimFlags(UsePhysics, IsTemporary, IsPhantom, IsVolumeDetect);
+                    part.UpdatePrimFlags(UsePhysics, IsTemporary, IsPhantom, IsVolumeDetect);
-                    }
                }
+                
            }
        }
@@ -2688,11 +2882,9 @@ namespace OpenSim.Region.Framework.Scenes
                scale.Y = m_scene.m_maxNonphys;
            if (scale.Z > m_scene.m_maxNonphys)
                scale.Z = m_scene.m_maxNonphys;
            SceneObjectPart part = GetChildPart(localID);
            if (part != null)
            {
-                part.Resize(scale);
                if (part.PhysActor != null)
                {
                    if (part.PhysActor.IsPhysical)
@@ -2707,7 +2899,7 @@ namespace OpenSim.Region.Framework.Scenes
                    part.PhysActor.Size = scale;
                    m_scene.PhysicsScene.AddPhysicsActorTaint(part.PhysActor);
                }
-                //if (part.UUID != m_rootPart.UUID)
+                part.Resize(scale);
                HasGroupChanged = true;
                ScheduleGroupForFullUpdate();
@@ -2748,77 +2940,76 @@ namespace OpenSim.Region.Framework.Scenes
                float y = (scale.Y / part.Scale.Y);
                float z = (scale.Z / part.Scale.Z);
-                lock (m_parts)
+                lockPartsForRead(true);
+                if (x > 1.0f || y > 1.0f || z > 1.0f)
                {
-                    if (x > 1.0f || y > 1.0f || z > 1.0f)
+                    foreach (SceneObjectPart obPart in m_parts.Values)
                    {
-                        foreach (SceneObjectPart obPart in m_parts.Values)
+                        if (obPart.UUID != m_rootPart.UUID)
                        {
-                            if (obPart.UUID != m_rootPart.UUID)
+                            Vector3 oldSize = new Vector3(obPart.Scale);
-                            {
-                                Vector3 oldSize = new Vector3(obPart.Scale);
-                                float f = 1.0f;
+                            float f = 1.0f;
-                                float a = 1.0f;
+                            float a = 1.0f;
-                                if (part.PhysActor != null && part.PhysActor.IsPhysical)
+                            if (part.PhysActor != null && part.PhysActor.IsPhysical)
+                            {
+                                if (oldSize.X*x > m_scene.m_maxPhys)
                                {
-                                    if (oldSize.X*x > m_scene.m_maxPhys)
+                                    f = m_scene.m_maxPhys / oldSize.X;
-                                    {
+                                    a = f / x;
-                                        f = m_scene.m_maxPhys / oldSize.X;
+                                    x *= a;
-                                        a = f / x;
+                                    y *= a;
-                                        x *= a;
+                                    z *= a;
-                                        y *= a;
-                                        z *= a;
-                                    }
-                                    if (oldSize.Y*y > m_scene.m_maxPhys)
-                                    {
-                                        f = m_scene.m_maxPhys / oldSize.Y;
-                                        a = f / y;
-                                        x *= a;
-                                        y *= a;
-                                        z *= a;
-                                    }
-                                    if (oldSize.Z*z > m_scene.m_maxPhys)
-                                    {
-                                        f = m_scene.m_maxPhys / oldSize.Z;
-                                        a = f / z;
-                                        x *= a;
-                                        y *= a;
-                                        z *= a;
-                                    }
                                }
-                                else
+                                if (oldSize.Y*y > m_scene.m_maxPhys)
+                                {
+                                    f = m_scene.m_maxPhys / oldSize.Y;
+                                    a = f / y;
+                                    x *= a;
+                                    y *= a;
+                                    z *= a;
+                                }
+                                if (oldSize.Z*z > m_scene.m_maxPhys)
+                                {
+                                    f = m_scene.m_maxPhys / oldSize.Z;
+                                    a = f / z;
+                                    x *= a;
+                                    y *= a;
+                                    z *= a;
+                                }
+                            }
+                            else
+                            {
+                                if (oldSize.X*x > m_scene.m_maxNonphys)
+                                {
+                                    f = m_scene.m_maxNonphys / oldSize.X;
+                                    a = f / x;
+                                    x *= a;
+                                    y *= a;
+                                    z *= a;
+                                }
+                                if (oldSize.Y*y > m_scene.m_maxNonphys)
+                                {
+                                    f = m_scene.m_maxNonphys / oldSize.Y;
+                                    a = f / y;
+                                    x *= a;
+                                    y *= a;
+                                    z *= a;
+                                }
+                                if (oldSize.Z*z > m_scene.m_maxNonphys)
                                {
-                                    if (oldSize.X*x > m_scene.m_maxNonphys)
+                                    f = m_scene.m_maxNonphys / oldSize.Z;
-                                    {
+                                    a = f / z;
-                                        f = m_scene.m_maxNonphys / oldSize.X;
+                                    x *= a;
-                                        a = f / x;
+                                    y *= a;
-                                        x *= a;
+                                    z *= a;
-                                        y *= a;
-                                        z *= a;
-                                    }
-                                    if (oldSize.Y*y > m_scene.m_maxNonphys)
-                                    {
-                                        f = m_scene.m_maxNonphys / oldSize.Y;
-                                        a = f / y;
-                                        x *= a;
-                                        y *= a;
-                                        z *= a;
-                                    }
-                                    if (oldSize.Z*z > m_scene.m_maxNonphys)
-                                    {
-                                        f = m_scene.m_maxNonphys / oldSize.Z;
-                                        a = f / z;
-                                        x *= a;
-                                        y *= a;
-                                        z *= a;
-                                    }
                                }
                            }
                        }
                    }
                }
+                lockPartsForRead(false);
                Vector3 prevScale = part.Scale;
                prevScale.X *= x;
@@ -2826,7 +3017,7 @@ namespace OpenSim.Region.Framework.Scenes
                prevScale.Z *= z;
                part.Resize(prevScale);
-                lock (m_parts)
+                lockPartsForRead(true);
                {
                    foreach (SceneObjectPart obPart in m_parts.Values)
                    {
@@ -2845,6 +3036,7 @@ namespace OpenSim.Region.Framework.Scenes
                        }
                    }
                }
+                lockPartsForRead(false);
                if (part.PhysActor != null)
                {
@@ -2925,7 +3117,7 @@ namespace OpenSim.Region.Framework.Scenes
            axDiff *= Quaternion.Inverse(partRotation);
            diff = axDiff;
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart obPart in m_parts.Values)
                {
@@ -2935,6 +3127,7 @@ namespace OpenSim.Region.Framework.Scenes
                    }
                }
            }
+            lockPartsForRead(false);
            AbsolutePosition = newPos;
@@ -3052,7 +3245,7 @@ namespace OpenSim.Region.Framework.Scenes
                m_scene.PhysicsScene.AddPhysicsActorTaint(m_rootPart.PhysActor);
            }
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart prim in m_parts.Values)
                {
@@ -3070,6 +3263,7 @@ namespace OpenSim.Region.Framework.Scenes
                    }
                }
            }
+            lockPartsForRead(false);
            m_rootPart.ScheduleTerseUpdate();
        }
@@ -3168,7 +3362,7 @@ namespace OpenSim.Region.Framework.Scenes
                    if (atTargets.Count > 0)
                    {
                        uint[] localids = new uint[0];
-                        lock (m_parts)
+                        lockPartsForRead(true);
                        {
                            localids = new uint[m_parts.Count];
                            int cntr = 0;
@@ -3178,6 +3372,7 @@ namespace OpenSim.Region.Framework.Scenes
                                cntr++;
                            }
                        }
+                        lockPartsForRead(false);
                        
                        for (int ctr = 0; ctr < localids.Length; ctr++)
                        {
@@ -3196,7 +3391,7 @@ namespace OpenSim.Region.Framework.Scenes
                    {
                        //trigger not_at_target
                        uint[] localids = new uint[0];
-                        lock (m_parts)
+                        lockPartsForRead(true);
                        {
                            localids = new uint[m_parts.Count];
                            int cntr = 0;
@@ -3206,7 +3401,8 @@ namespace OpenSim.Region.Framework.Scenes
                                cntr++;
                            }
                        }
-                        
+                        lockPartsForRead(false);    
                        for (int ctr = 0; ctr < localids.Length; ctr++)
                        {
                            m_scene.EventManager.TriggerNotAtTargetEvent(localids[ctr]);
@@ -3219,19 +3415,20 @@ namespace OpenSim.Region.Framework.Scenes
        public float GetMass()
        {
            float retmass = 0f;
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
                    retmass += part.GetMass();
                }
            }
+            lockPartsForRead(false);
            return retmass;
        }
        
        public void CheckSculptAndLoad()
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                if (!IsDeleted)
                {
@@ -3256,6 +3453,7 @@ namespace OpenSim.Region.Framework.Scenes
                    }
                }
            }
+            lockPartsForRead(false);
        }
        protected void AssetReceived(string id, Object sender, AssetBase asset)
@@ -3276,7 +3474,7 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="client"></param>
        public void SetGroup(UUID GroupID, IClientAPI client)
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                {
@@ -3286,7 +3484,7 @@ namespace OpenSim.Region.Framework.Scenes
                HasGroupChanged = true;
            }
+            lockPartsForRead(false);
            ScheduleGroupForFullUpdate();
        }
@@ -3305,11 +3503,12 @@ namespace OpenSim.Region.Framework.Scenes
        public void SetAttachmentPoint(byte point)
        {
-            lock (m_parts)
+            lockPartsForRead(true);
            {
                foreach (SceneObjectPart part in m_parts.Values)
                    part.SetAttachmentPoint(point);
            }
+            lockPartsForRead(false);
        }
        #region ISceneObject
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index b6916f2..a23c11e 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -212,6 +212,7 @@ namespace OpenSim.Region.Framework.Scenes
        private Quaternion m_sitTargetOrientation = Quaternion.Identity;
        private Vector3 m_sitTargetPosition;
        private string m_sitAnimation = "SIT";
+        private bool m_occupied;                                        // KF if any av is sitting on this prim
        private string m_text = String.Empty;
        private string m_touchName = String.Empty;
        private readonly UndoStack<UndoState> m_undo = new UndoStack<UndoState>(5);
@@ -389,12 +390,16 @@ namespace OpenSim.Region.Framework.Scenes
        }
        /// <value>
-        /// Access should be via Inventory directly - this property temporarily remains for xml serialization purposes
+        /// Get the inventory list
        /// </value>
        public TaskInventoryDictionary TaskInventory
        {
-            get { return m_inventory.Items; }
+            get {
-            set { m_inventory.Items = value; }
+                return m_inventory.Items;
+            }
+            set {
+                m_inventory.Items = value;
+            }
        }
        public uint ObjectFlags
@@ -508,9 +513,16 @@ namespace OpenSim.Region.Framework.Scenes
            {
                // If this is a linkset, we don't want the physics engine mucking up our group position here.
                PhysicsActor actor = PhysActor;
-                if (actor != null && _parentID == 0)
+                if (actor != null) 
                {
-                    m_groupPosition = actor.Position;
+                        if (_parentID == 0)
+                        {
+                        m_groupPosition = actor.Position;
+                        }
+                        else
+                        {
+                                m_groupPosition = ParentGroup.AbsolutePosition;  // KF+Casper Update Child prims too!
+                        }
                }
                if (IsAttachment)
@@ -837,7 +849,8 @@ namespace OpenSim.Region.Framework.Scenes
                if (IsAttachment)
                    return GroupPosition;
-                return m_offsetPosition + m_groupPosition; }
+//                return m_offsetPosition + m_groupPosition; }
+                return m_groupPosition + (m_offsetPosition * ParentGroup.RootPart.RotationOffset) ; }  //KF: Rotation was ignored!
        }
        public SceneObjectGroup ParentGroup
@@ -989,6 +1002,13 @@ namespace OpenSim.Region.Framework.Scenes
            get { return _flags; }
            set { _flags = value; }
        }
+        
+        [XmlIgnore]
+        public bool IsOccupied                          // KF If an av is sittingon this prim
+        {
+                get { return m_occupied; }
+                set { m_occupied = value; }
+        }
        [XmlIgnore]
        public UUID SitTargetAvatar
@@ -1064,14 +1084,6 @@ namespace OpenSim.Region.Framework.Scenes
            }
        }
-        /// <summary>
-        /// Clear all pending updates of parts to clients
-        /// </summary>
-        private void ClearUpdateSchedule()
-        {
-            m_updateFlag = 0;
-        }
        private void SendObjectPropertiesToClient(UUID AgentID)
        {
            ScenePresence[] avatars = m_parentGroup.Scene.GetScenePresences();
@@ -1739,9 +1751,13 @@ namespace OpenSim.Region.Framework.Scenes
            Quaternion parentRot = ParentGroup.RootPart.RotationOffset;
            Vector3 axPos = OffsetPosition;
            axPos *= parentRot;
            Vector3 translationOffsetPosition = axPos;
+            
+            int tx =  (int)GroupPosition.X;
+            int ty =  (int)GroupPosition.Y;
+            int tz =  (int)GroupPosition.Z;
            return GroupPosition + translationOffsetPosition;
        }
@@ -2109,17 +2125,18 @@ namespace OpenSim.Region.Framework.Scenes
                //Trys to fetch sound id from prim's inventory.
                //Prim's inventory doesn't support non script items yet
                
-                lock (TaskInventory)
+                TaskInventory.LockItemsForRead(true);
+                foreach (KeyValuePair<UUID, TaskInventoryItem> item in TaskInventory)
                {
-                    foreach (KeyValuePair<UUID, TaskInventoryItem> item in TaskInventory)
+                    if (item.Value.Name == sound)
                    {
-                        if (item.Value.Name == sound)
+                        soundID = item.Value.ItemID;
-                        {
+                        break;
-                            soundID = item.Value.ItemID;
-                            break;
-                        }
                    }
                }
+                TaskInventory.LockItemsForRead(false);
            }
            List<ScenePresence> avatarts = m_parentGroup.Scene.GetAvatars();
@@ -2185,6 +2202,11 @@ namespace OpenSim.Region.Framework.Scenes
            ParentGroup.HasGroupChanged = true;
            ScheduleFullUpdate();
        }
+        
+        public void RotLookAt(Quaternion target, float strength, float damping)
+        {
+            m_parentGroup.rotLookAt(target, strength, damping);
+        }
        /// <summary>
        /// Schedules this prim for a full update
@@ -2389,8 +2411,8 @@ namespace OpenSim.Region.Framework.Scenes
        {
            const float ROTATION_TOLERANCE = 0.01f;
            const float VELOCITY_TOLERANCE = 0.001f;
-            const float POSITION_TOLERANCE = 0.05f;
+            const float POSITION_TOLERANCE = 0.05f; // I don't like this, but I suppose it's necessary
-            const int TIME_MS_TOLERANCE = 3000;
+            const int TIME_MS_TOLERANCE = 200; //llSetPos has a 200ms delay. This should NOT be 3 seconds.
            if (m_updateFlag == 1)
            {
@@ -2404,7 +2426,7 @@ namespace OpenSim.Region.Framework.Scenes
                    Environment.TickCount - m_lastTerseSent > TIME_MS_TOLERANCE)
                {
                    AddTerseUpdateToAllAvatars();
-                    ClearUpdateSchedule();
+                    
                    // This causes the Scene to 'poll' physical objects every couple of frames
                    // bad, so it's been replaced by an event driven method.
@@ -2422,16 +2444,18 @@ namespace OpenSim.Region.Framework.Scenes
                    m_lastAngularVelocity = AngularVelocity;
                    m_lastTerseSent = Environment.TickCount;
                }
+                //Moved this outside of the if clause so updates don't get blocked.. *sigh*
+                m_updateFlag = 0; //Why were we calling a function to do this? Inefficient! *screams* 
            }
            else
            {
                if (m_updateFlag == 2) // is a new prim, just created/reloaded or has major changes
                {
                    AddFullUpdateToAllAvatars();
-                    ClearUpdateSchedule();
+                    m_updateFlag = 0; //Same here
                }
            }
-            ClearUpdateSchedule();
+            m_updateFlag = 0;
        }
        /// <summary>
@@ -2458,17 +2482,16 @@ namespace OpenSim.Region.Framework.Scenes
            if (!UUID.TryParse(sound, out soundID))
            {
                // search sound file from inventory
-                lock (TaskInventory)
+                TaskInventory.LockItemsForRead(true);
+                foreach (KeyValuePair<UUID, TaskInventoryItem> item in TaskInventory)
                {
-                    foreach (KeyValuePair<UUID, TaskInventoryItem> item in TaskInventory)
+                    if (item.Value.Name == sound && item.Value.Type == (int)AssetType.Sound)
                    {
-                        if (item.Value.Name == sound && item.Value.Type == (int)AssetType.Sound)
+                        soundID = item.Value.ItemID;
-                        {
+                        break;
-                            soundID = item.Value.ItemID;
-                            break;
-                        }
                    }
                }
+                TaskInventory.LockItemsForRead(false);
            }
            if (soundID == UUID.Zero)
@@ -2684,6 +2707,13 @@ namespace OpenSim.Region.Framework.Scenes
            SetText(text);
        }
+        public void StopLookAt()
+        {
+            m_parentGroup.stopLookAt();
+            m_parentGroup.ScheduleGroupForTerseUpdate();        
+        }        
+        
        public void StopMoveToTarget()
        {
            m_parentGroup.stopMoveToTarget();
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index 22eedba..b57d912 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -80,7 +80,9 @@ namespace OpenSim.Region.Framework.Scenes
        /// </value>
        protected internal TaskInventoryDictionary Items
        {
-            get { return m_items; }
+            get { 
+                return m_items; 
+            }
            set
            {
                m_items = value;
@@ -116,22 +118,25 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="linkNum">Link number for the part</param>
        public void ResetInventoryIDs()
        {
-            lock (Items)
+            m_items.LockItemsForWrite(true);
+            if (0 == Items.Count)
            {
-                if (0 == Items.Count)
+                m_items.LockItemsForWrite(false);
-                    return;
+                return;
+            }
-                HasInventoryChanged = true;
+            HasInventoryChanged = true;
-                m_part.ParentGroup.HasGroupChanged = true;
+            m_part.ParentGroup.HasGroupChanged = true;
-                IList<TaskInventoryItem> items = new List<TaskInventoryItem>(Items.Values);
+            IList<TaskInventoryItem> items = new List<TaskInventoryItem>(Items.Values);
-                Items.Clear();
+            Items.Clear();
-                foreach (TaskInventoryItem item in items)
+            foreach (TaskInventoryItem item in items)
-                {
+            {
-                    item.ResetIDs(m_part.UUID);
+                item.ResetIDs(m_part.UUID);
-                    Items.Add(item.ItemID, item);
+                Items.Add(item.ItemID, item);
-                }
            }
+            m_items.LockItemsForWrite(false);
        }
        /// <summary>
@@ -140,25 +145,25 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="ownerId"></param>
        public void ChangeInventoryOwner(UUID ownerId)
        {
-            lock (Items)
+            m_items.LockItemsForWrite(true);
+            if (0 == Items.Count)
            {
-                if (0 == Items.Count)
+                m_items.LockItemsForWrite(false);
-                {
+                return;
-                    return;
+            }
-                }
-                HasInventoryChanged = true;
+            HasInventoryChanged = true;
-                m_part.ParentGroup.HasGroupChanged = true;
+            m_part.ParentGroup.HasGroupChanged = true;
-                IList<TaskInventoryItem> items = new List<TaskInventoryItem>(Items.Values);
+            IList<TaskInventoryItem> items = new List<TaskInventoryItem>(Items.Values);
-                foreach (TaskInventoryItem item in items)
+            foreach (TaskInventoryItem item in items)
+            {
+                if (ownerId != item.OwnerID)
                {
-                    if (ownerId != item.OwnerID)
+                    item.LastOwnerID = item.OwnerID;
-                    {
+                    item.OwnerID = ownerId;
-                        item.LastOwnerID = item.OwnerID;
-                        item.OwnerID = ownerId;
-                    }
                }
            }
+            m_items.LockItemsForWrite(false);
        }
        /// <summary>
@@ -167,24 +172,24 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="groupID"></param>
        public void ChangeInventoryGroup(UUID groupID)
        {
-            lock (Items)
+            m_items.LockItemsForWrite(true);
+            if (0 == Items.Count)
            {
-                if (0 == Items.Count)
+                m_items.LockItemsForWrite(false);
-                {
+                return;
-                    return;
+            }
-                }
-                HasInventoryChanged = true;
+            HasInventoryChanged = true;
-                m_part.ParentGroup.HasGroupChanged = true;
+            m_part.ParentGroup.HasGroupChanged = true;
-                IList<TaskInventoryItem> items = new List<TaskInventoryItem>(Items.Values);
+            IList<TaskInventoryItem> items = new List<TaskInventoryItem>(Items.Values);
-                foreach (TaskInventoryItem item in items)
+            foreach (TaskInventoryItem item in items)
+            {
+                if (groupID != item.GroupID)
                {
-                    if (groupID != item.GroupID)
+                    item.GroupID = groupID;
-                    {
-                        item.GroupID = groupID;
-                    }
                }
            }
+            m_items.LockItemsForWrite(false);
        }
        /// <summary>
@@ -192,14 +197,14 @@ namespace OpenSim.Region.Framework.Scenes
        /// </summary>
        public void CreateScriptInstances(int startParam, bool postOnRez, string engine, int stateSource)
        {
-            lock (m_items)
+            Items.LockItemsForRead(true);
+            IList<TaskInventoryItem> items = new List<TaskInventoryItem>(Items.Values);
+            Items.LockItemsForRead(false);
+            foreach (TaskInventoryItem item in items)
            {
-                foreach (TaskInventoryItem item in Items.Values)
+                if ((int)InventoryType.LSL == item.InvType)
                {
-                    if ((int)InventoryType.LSL == item.InvType)
+                    CreateScriptInstance(item, startParam, postOnRez, engine, stateSource);
-                    {
-                        CreateScriptInstance(item, startParam, postOnRez, engine, stateSource);
-                    }
                }
            }
        }
@@ -209,17 +214,20 @@ namespace OpenSim.Region.Framework.Scenes
        /// </summary>
        public void RemoveScriptInstances()
        {
-            lock (Items)
+            Items.LockItemsForRead(true);
+            IList<TaskInventoryItem> items = new List<TaskInventoryItem>(Items.Values);
+            Items.LockItemsForRead(false);
+            foreach (TaskInventoryItem item in items)
            {
-                foreach (TaskInventoryItem item in Items.Values)
+                if ((int)InventoryType.LSL == item.InvType)
                {
-                    if ((int)InventoryType.LSL == item.InvType)
+                    RemoveScriptInstance(item.ItemID);
-                    {
+                    m_part.RemoveScriptEvents(item.ItemID);
-                        RemoveScriptInstance(item.ItemID);
-                        m_part.RemoveScriptEvents(item.ItemID);
-                    }
                }
            }
+            
        }
        /// <summary>
@@ -244,8 +252,10 @@ namespace OpenSim.Region.Framework.Scenes
                if (stateSource == 1 && // Prim crossing
                        m_part.ParentGroup.Scene.m_trustBinaries)
                {
+                    m_items.LockItemsForWrite(true);
                    m_items[item.ItemID].PermsMask = 0;
                    m_items[item.ItemID].PermsGranter = UUID.Zero;
+                    m_items.LockItemsForWrite(false);
                    m_part.ParentGroup.Scene.EventManager.TriggerRezScript(
                        m_part.LocalId, item.ItemID, String.Empty, startParam, postOnRez, engine, stateSource);
                    m_part.ParentGroup.AddActiveScriptCount(1);
@@ -267,8 +277,10 @@ namespace OpenSim.Region.Framework.Scenes
                                   {
                                       if (m_part.ParentGroup.m_savedScriptState != null)
                                           RestoreSavedScriptState(item.OldItemID, item.ItemID);
+                                       m_items.LockItemsForWrite(true);
                                       m_items[item.ItemID].PermsMask = 0;
                                       m_items[item.ItemID].PermsGranter = UUID.Zero;
+                                       m_items.LockItemsForWrite(false);
                                       string script = Utils.BytesToString(asset.Data);
                                       m_part.ParentGroup.Scene.EventManager.TriggerRezScript(
                                            m_part.LocalId, item.ItemID, script, startParam, postOnRez, engine, stateSource);
@@ -303,14 +315,17 @@ namespace OpenSim.Region.Framework.Scenes
        /// </param>
        public void CreateScriptInstance(UUID itemId, int startParam, bool postOnRez, string engine, int stateSource)
        {
-            lock (m_items)
+            m_items.LockItemsForRead(true);
+            if (m_items.ContainsKey(itemId))
            {
                if (m_items.ContainsKey(itemId))
                {
+                    m_items.LockItemsForRead(false);
                    CreateScriptInstance(m_items[itemId], startParam, postOnRez, engine, stateSource);
                }
                else
                {
+                    m_items.LockItemsForRead(false);
                    m_log.ErrorFormat(
                        "[PRIM INVENTORY]: " +
                        "Couldn't start script with ID {0} since it couldn't be found for prim {1}, {2} at {3} in {4}",
@@ -318,6 +333,15 @@ namespace OpenSim.Region.Framework.Scenes
                        m_part.AbsolutePosition, m_part.ParentGroup.Scene.RegionInfo.RegionName);
                }
            }
+            else
+            {
+                m_items.LockItemsForRead(false);
+                m_log.ErrorFormat(
+                    "[PRIM INVENTORY]: " +
+                    "Couldn't start script with ID {0} since it couldn't be found for prim {1}, {2}",
+                    itemId, m_part.Name, m_part.UUID);
+            }
+            
        }
        /// <summary>
@@ -349,11 +373,16 @@ namespace OpenSim.Region.Framework.Scenes
        /// <returns></returns>
        private bool InventoryContainsName(string name)
        {
-            foreach (TaskInventoryItem item in Items.Values)
+            m_items.LockItemsForRead(true);
+            foreach (TaskInventoryItem item in m_items.Values)
            {
                if (item.Name == name)
+                {
+                    m_items.LockItemsForRead(false);
                    return true;
+                }
            }
+            m_items.LockItemsForRead(false);
            return false;
        }
@@ -395,7 +424,9 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="item"></param>
        public void AddInventoryItemExclusive(TaskInventoryItem item, bool allowedDrop)
        {
+            m_items.LockItemsForRead(true);
            List<TaskInventoryItem> il = new List<TaskInventoryItem>(m_items.Values);
+            m_items.LockItemsForRead(false);
            foreach (TaskInventoryItem i in il)
            {
                if (i.Name == item.Name)
@@ -432,15 +463,14 @@ namespace OpenSim.Region.Framework.Scenes
            item.ParentPartID = m_part.UUID;
            item.Name = name;
-            lock (m_items)
+            m_items.LockItemsForWrite(true);
-            {
+            m_items.Add(item.ItemID, item);
-                m_items.Add(item.ItemID, item);
+            m_items.LockItemsForWrite(false);
                if (allowedDrop) 
                    m_part.TriggerScriptChangedEvent(Changed.ALLOWED_DROP);
                else
                    m_part.TriggerScriptChangedEvent(Changed.INVENTORY);
-            }
+            
            m_inventorySerial++;
            //m_inventorySerial += 2;
@@ -457,14 +487,13 @@ namespace OpenSim.Region.Framework.Scenes
        /// <param name="items"></param>
        public void RestoreInventoryItems(ICollection<TaskInventoryItem> items)
        {
-            lock (m_items)
+            m_items.LockItemsForWrite(true);
+            foreach (TaskInventoryItem item in items)
            {
-                foreach (TaskInventoryItem item in items)
+                m_items.Add(item.ItemID, item);
-                {
+                m_part.TriggerScriptChangedEvent(Changed.INVENTORY);
-                    m_items.Add(item.ItemID, item);
-                    m_part.TriggerScriptChangedEvent(Changed.INVENTORY);
-                }
            }
+            m_items.LockItemsForWrite(false);
            m_inventorySerial++;
        }
@@ -477,8 +506,9 @@ namespace OpenSim.Region.Framework.Scenes
        public TaskInventoryItem GetInventoryItem(UUID itemId)
        {
            TaskInventoryItem item;
+            m_items.LockItemsForRead(true);
            m_items.TryGetValue(itemId, out item);
+            m_items.LockItemsForRead(false);
            return item;
        }
@@ -490,46 +520,46 @@ namespace OpenSim.Region.Framework.Scenes
        /// <returns>false if the item did not exist, true if the update occurred successfully</returns>
        public bool UpdateInventoryItem(TaskInventoryItem item)
        {
-            lock (m_items)
+            m_items.LockItemsForWrite(true);
+            if (m_items.ContainsKey(item.ItemID))
            {
-                if (m_items.ContainsKey(item.ItemID))
+                item.ParentID = m_part.UUID;
+                item.ParentPartID = m_part.UUID;
+                item.Flags = m_items[item.ItemID].Flags;
+                if (item.AssetID == UUID.Zero)
                {
-                    item.ParentID = m_part.UUID;
+                    item.AssetID = m_items[item.ItemID].AssetID;
-                    item.ParentPartID = m_part.UUID;
+                }
-                    item.Flags = m_items[item.ItemID].Flags;
+                else if ((InventoryType)item.Type == InventoryType.Notecard)
-                    if (item.AssetID == UUID.Zero)
+                {
-                    {
+                    ScenePresence presence = m_part.ParentGroup.Scene.GetScenePresence(item.OwnerID);
-                        item.AssetID = m_items[item.ItemID].AssetID;
-                    }
-                    else if ((InventoryType)item.Type == InventoryType.Notecard)
-                    {
-                        ScenePresence presence = m_part.ParentGroup.Scene.GetScenePresence(item.OwnerID);
-                        if (presence != null)
+                    if (presence != null)
-                        {
+                    {
-                            presence.ControllingClient.SendAgentAlertMessage(
+                        presence.ControllingClient.SendAgentAlertMessage(
-                                    "Notecard saved", false);
+                                "Notecard saved", false);
-                        }
                    }
+                }
-                    m_items[item.ItemID] = item;
+                m_items[item.ItemID] = item;
-                    m_inventorySerial++;
+                m_inventorySerial++;
-                    m_part.TriggerScriptChangedEvent(Changed.INVENTORY);
+                m_part.TriggerScriptChangedEvent(Changed.INVENTORY);
-                    HasInventoryChanged = true;
-                    m_part.ParentGroup.HasGroupChanged = true;
-                    return true;
+                HasInventoryChanged = true;
-                }
+                m_part.ParentGroup.HasGroupChanged = true;
-                else
+                m_items.LockItemsForWrite(false);
-                {
+                return true;
-                    m_log.ErrorFormat(
+            }
-                        "[PRIM INVENTORY]: " +
+            else
-                        "Tried to retrieve item ID {0} from prim {1}, {2} at {3} in {4} but the item does not exist in this inventory",
+            {
-                        item.ItemID, m_part.Name, m_part.UUID, 
+                m_log.ErrorFormat(
-                        m_part.AbsolutePosition, m_part.ParentGroup.Scene.RegionInfo.RegionName);
+                    "[PRIM INVENTORY]: " +
-                }
+                    "Tried to retrieve item ID {0} from prim {1}, {2} at {3} in {4} but the item does not exist in this inventory",
+                    item.ItemID, m_part.Name, m_part.UUID, 
+                    m_part.AbsolutePosition, m_part.ParentGroup.Scene.RegionInfo.RegionName);
            }
+            m_items.LockItemsForWrite(false);
            return false;
        }
@@ -542,52 +572,54 @@ namespace OpenSim.Region.Framework.Scenes
        /// in this prim's inventory.</returns>
        public int RemoveInventoryItem(UUID itemID)
        {
-            lock (m_items)
+            m_items.LockItemsForRead(true);
+            if (m_items.ContainsKey(itemID))
            {
-                if (m_items.ContainsKey(itemID))
+                int type = m_items[itemID].InvType;
+                m_items.LockItemsForRead(false);
+                if (type == 10) // Script
                {
-                    int type = m_items[itemID].InvType;
+                    m_part.ParentGroup.Scene.EventManager.TriggerRemoveScript(m_part.LocalId, itemID);
-                    if (type == 10) // Script
+                }
-                    {
+                m_items.LockItemsForWrite(true);
-                        m_part.ParentGroup.Scene.EventManager.TriggerRemoveScript(m_part.LocalId, itemID);
+                m_items.Remove(itemID);
-                    }
+                m_items.LockItemsForWrite(false);
-                    m_items.Remove(itemID);
+                m_inventorySerial++;
-                    m_inventorySerial++;
+                m_part.TriggerScriptChangedEvent(Changed.INVENTORY);
-                    m_part.TriggerScriptChangedEvent(Changed.INVENTORY);
-                    HasInventoryChanged = true;
-                    m_part.ParentGroup.HasGroupChanged = true;
-                    int scriptcount = 0;
+                HasInventoryChanged = true;
-                    lock (m_items)
+                m_part.ParentGroup.HasGroupChanged = true;
-                    {
-                        foreach (TaskInventoryItem item in m_items.Values)
-                        {
-                            if (item.Type == 10)
-                            {
-                                scriptcount++;
-                            }
-                        }
-                    }
-                    if (scriptcount <= 0)
+                int scriptcount = 0;
+                m_items.LockItemsForRead(true);
+                foreach (TaskInventoryItem item in m_items.Values)
+                {
+                    if (item.Type == 10)
                    {
-                        m_part.RemFlag(PrimFlags.Scripted);
+                        scriptcount++;
                    }
-                    m_part.ScheduleFullUpdate();
-                    return type;
                }
-                else
+                m_items.LockItemsForRead(false);
+                
+                if (scriptcount <= 0)
                {
-                    m_log.ErrorFormat(
+                    m_part.RemFlag(PrimFlags.Scripted);
-                        "[PRIM INVENTORY]: " +
-                        "Tried to remove item ID {0} from prim {1}, {2} at {3} in {4} but the item does not exist in this inventory",
-                        itemID, m_part.Name, m_part.UUID, 
-                        m_part.AbsolutePosition, m_part.ParentGroup.Scene.RegionInfo.RegionName);
                }
+                m_part.ScheduleFullUpdate();
+                return type;
+            }
+            else
+            {
+                m_log.ErrorFormat(
+                    "[PRIM INVENTORY]: " +
+                    "Tried to remove item ID {0} from prim {1}, {2} but the item does not exist in this inventory",
+                    itemID, m_part.Name, m_part.UUID);
            }
+            m_items.LockItemsForWrite(false);
            return -1;
        }
@@ -640,52 +672,53 @@ namespace OpenSim.Region.Framework.Scenes
            // isn't available (such as drag from prim inventory to agent inventory)
            InventoryStringBuilder invString = new InventoryStringBuilder(m_part.UUID, UUID.Zero);
-            lock (m_items)
+            m_items.LockItemsForRead(true);
+            foreach (TaskInventoryItem item in m_items.Values)
            {
-                foreach (TaskInventoryItem item in m_items.Values)
+                UUID ownerID = item.OwnerID;
-                {
+                uint everyoneMask = 0;
-                    UUID ownerID = item.OwnerID;
+                uint baseMask = item.BasePermissions;
-                    uint everyoneMask = 0;
+                uint ownerMask = item.CurrentPermissions;
-                    uint baseMask = item.BasePermissions;
-                    uint ownerMask = item.CurrentPermissions;
-                    invString.AddItemStart();
+                invString.AddItemStart();
-                    invString.AddNameValueLine("item_id", item.ItemID.ToString());
+                invString.AddNameValueLine("item_id", item.ItemID.ToString());
-                    invString.AddNameValueLine("parent_id", m_part.UUID.ToString());
+                invString.AddNameValueLine("parent_id", m_part.UUID.ToString());
-                    invString.AddPermissionsStart();
+                invString.AddPermissionsStart();
-                    invString.AddNameValueLine("base_mask", Utils.UIntToHexString(baseMask));
+                invString.AddNameValueLine("base_mask", Utils.UIntToHexString(baseMask));
-                    invString.AddNameValueLine("owner_mask", Utils.UIntToHexString(ownerMask));
+                invString.AddNameValueLine("owner_mask", Utils.UIntToHexString(ownerMask));
-                    invString.AddNameValueLine("group_mask", Utils.UIntToHexString(0));
+                invString.AddNameValueLine("group_mask", Utils.UIntToHexString(0));
-                    invString.AddNameValueLine("everyone_mask", Utils.UIntToHexString(everyoneMask));
+                invString.AddNameValueLine("everyone_mask", Utils.UIntToHexString(everyoneMask));
-                    invString.AddNameValueLine("next_owner_mask", Utils.UIntToHexString(item.NextPermissions));
+                invString.AddNameValueLine("next_owner_mask", Utils.UIntToHexString(item.NextPermissions));
-                    invString.AddNameValueLine("creator_id", item.CreatorID.ToString());
+                invString.AddNameValueLine("creator_id", item.CreatorID.ToString());
-                    invString.AddNameValueLine("owner_id", ownerID.ToString());
+                invString.AddNameValueLine("owner_id", ownerID.ToString());
-                    invString.AddNameValueLine("last_owner_id", item.LastOwnerID.ToString());
+                invString.AddNameValueLine("last_owner_id", item.LastOwnerID.ToString());
-                    invString.AddNameValueLine("group_id", item.GroupID.ToString());
+                invString.AddNameValueLine("group_id", item.GroupID.ToString());
-                    invString.AddSectionEnd();
+                invString.AddSectionEnd();
-                    invString.AddNameValueLine("asset_id", item.AssetID.ToString());
+                invString.AddNameValueLine("asset_id", item.AssetID.ToString());
-                    invString.AddNameValueLine("type", TaskInventoryItem.Types[item.Type]);
+                invString.AddNameValueLine("type", TaskInventoryItem.Types[item.Type]);
-                    invString.AddNameValueLine("inv_type", TaskInventoryItem.InvTypes[item.InvType]);
+                invString.AddNameValueLine("inv_type", TaskInventoryItem.InvTypes[item.InvType]);
-                    invString.AddNameValueLine("flags", Utils.UIntToHexString(item.Flags));
+                invString.AddNameValueLine("flags", Utils.UIntToHexString(item.Flags));
-                    invString.AddSaleStart();
+                invString.AddSaleStart();
-                    invString.AddNameValueLine("sale_type", "not");
+                invString.AddNameValueLine("sale_type", "not");
-                    invString.AddNameValueLine("sale_price", "0");
+                invString.AddNameValueLine("sale_price", "0");
-                    invString.AddSectionEnd();
+                invString.AddSectionEnd();
-                    invString.AddNameValueLine("name", item.Name + "|");
+                invString.AddNameValueLine("name", item.Name + "|");
-                    invString.AddNameValueLine("desc", item.Description + "|");
+                invString.AddNameValueLine("desc", item.Description + "|");
-                    invString.AddNameValueLine("creation_date", item.CreationDate.ToString());
+                invString.AddNameValueLine("creation_date", item.CreationDate.ToString());
-                    invString.AddSectionEnd();
+                invString.AddSectionEnd();
-                }
            }
+            int count = m_items.Count;
+            m_items.LockItemsForRead(false);
            fileData = Utils.StringToBytes(invString.BuildString);
@@ -706,10 +739,9 @@ namespace OpenSim.Region.Framework.Scenes
        {
            if (HasInventoryChanged)
            {
-                lock (Items)
+                Items.LockItemsForRead(true);
-                {
+                datastore.StorePrimInventory(m_part.UUID, Items.Values);
-                    datastore.StorePrimInventory(m_part.UUID, Items.Values);
+                Items.LockItemsForRead(false);
-                }
                HasInventoryChanged = false;
            }
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 24840d4..fbc4ed5 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -73,7 +73,7 @@ namespace OpenSim.Region.Framework.Scenes
 //        {
 //            m_log.Debug("[ScenePresence] Destructor called");
 //        }
+        
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
        private static readonly byte[] BAKE_INDICES = new byte[] { 8, 9, 10, 11, 19, 20 };
@@ -89,7 +89,9 @@ namespace OpenSim.Region.Framework.Scenes
        /// rotation, prim cut, prim twist, prim taper, and prim shear. See mantis
        /// issue #1716
        /// </summary>
-        private static readonly Vector3 SIT_TARGET_ADJUSTMENT = new Vector3(0.1f, 0.0f, 0.3f);
+//        private static readonly Vector3 SIT_TARGET_ADJUSTMENT = new Vector3(0.1f, 0.0f, 0.3f);
+                // Value revised by KF 091121 by comparison with SL.
+        private static readonly Vector3 SIT_TARGET_ADJUSTMENT = new Vector3(0.0f, 0.0f, 0.418f);
        public UUID currentParcelUUID = UUID.Zero;
@@ -113,7 +115,9 @@ namespace OpenSim.Region.Framework.Scenes
        public Vector3 lastKnownAllowedPosition;
        public bool sentMessageAboutRestrictedParcelFlyingDown;
        public Vector4 CollisionPlane = Vector4.UnitW;
+        
+                private Vector3 m_avInitialPos;         // used to calculate unscripted sit rotation
+                private Vector3 m_avUnscriptedSitPos;   // for non-scripted prims
        private Vector3 m_lastPosition;
        private Quaternion m_lastRotation;
        private Vector3 m_lastVelocity;
@@ -144,7 +148,6 @@ namespace OpenSim.Region.Framework.Scenes
        private int m_perfMonMS;
        private bool m_setAlwaysRun;
-        
        private bool m_forceFly;
        private bool m_flyDisabled;
@@ -168,7 +171,8 @@ namespace OpenSim.Region.Framework.Scenes
        protected RegionInfo m_regionInfo;
        protected ulong crossingFromRegion;
-        private readonly Vector3[] Dir_Vectors = new Vector3[6];
+        private readonly Vector3[] Dir_Vectors = new Vector3[11];
+        private bool m_isNudging = false;
        // Position of agent's camera in world (region cordinates)
        protected Vector3 m_CameraCenter;
@@ -193,6 +197,7 @@ namespace OpenSim.Region.Framework.Scenes
        private bool m_autopilotMoving;
        private Vector3 m_autoPilotTarget;
        private bool m_sitAtAutoTarget;
+        private Vector3 m_initialSitTarget;             //KF: First estimate of where to sit
        private string m_nextSitAnimation = String.Empty;
@@ -203,6 +208,9 @@ namespace OpenSim.Region.Framework.Scenes
        private bool m_followCamAuto;
        private int m_movementUpdateCount;
+        private int m_lastColCount = -1;                //KF: Look for Collision chnages
+        private int m_updateCount = 0;                  //KF: Update Anims for a while
+        private static readonly int UPDATE_COUNT = 10;          // how many frames to update for
        private const int NumMovementsBetweenRayCast = 5;
@@ -232,6 +240,10 @@ namespace OpenSim.Region.Framework.Scenes
            DIR_CONTROL_FLAG_RIGHT = AgentManager.ControlFlags.AGENT_CONTROL_LEFT_NEG,
            DIR_CONTROL_FLAG_UP = AgentManager.ControlFlags.AGENT_CONTROL_UP_POS,
            DIR_CONTROL_FLAG_DOWN = AgentManager.ControlFlags.AGENT_CONTROL_UP_NEG,
+            DIR_CONTROL_FLAG_FORWARD_NUDGE = AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_AT_POS,
+            DIR_CONTROL_FLAG_BACK_NUDGE = AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_AT_NEG,
+            DIR_CONTROL_FLAG_LEFT_NUDGE = AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_LEFT_POS,
+            DIR_CONTROL_FLAG_RIGHT_NUDGE = AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_LEFT_NEG,
            DIR_CONTROL_FLAG_DOWN_NUDGE = AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_UP_NEG
        }
        
@@ -658,9 +670,7 @@ namespace OpenSim.Region.Framework.Scenes
            AdjustKnownSeeds();
-            // TODO: I think, this won't send anything, as we are still a child here...
+           Animator.TrySetMovementAnimation("STAND"); 
-            Animator.TrySetMovementAnimation("STAND"); 
            // we created a new ScenePresence (a new child agent) in a fresh region.
            // Request info about all the (root) agents in this region
            // Note: This won't send data *to* other clients in that region (children don't send)
@@ -716,21 +726,47 @@ namespace OpenSim.Region.Framework.Scenes
            Dir_Vectors[3] = -Vector3.UnitY; //RIGHT
            Dir_Vectors[4] = Vector3.UnitZ; //UP
            Dir_Vectors[5] = -Vector3.UnitZ; //DOWN
-            Dir_Vectors[5] = new Vector3(0f, 0f, -0.5f); //DOWN_Nudge
+            Dir_Vectors[6] = new Vector3(0.5f, 0f, 0f); //FORWARD_NUDGE
+            Dir_Vectors[7] = new Vector3(-0.5f, 0f, 0f);  //BACK_NUDGE
+            Dir_Vectors[8] = new Vector3(0f, 0.5f, 0f);  //LEFT_NUDGE
+            Dir_Vectors[9] = new Vector3(0f, -0.5f, 0f);  //RIGHT_NUDGE
+            Dir_Vectors[10] = new Vector3(0f, 0f, -0.5f); //DOWN_Nudge
        }
        private Vector3[] GetWalkDirectionVectors()
        {
-            Vector3[] vector = new Vector3[6];
+            Vector3[] vector = new Vector3[11];
            vector[0] = new Vector3(m_CameraUpAxis.Z, 0f, -m_CameraAtAxis.Z); //FORWARD
            vector[1] = new Vector3(-m_CameraUpAxis.Z, 0f, m_CameraAtAxis.Z); //BACK
            vector[2] = Vector3.UnitY; //LEFT
            vector[3] = -Vector3.UnitY; //RIGHT
            vector[4] = new Vector3(m_CameraAtAxis.Z, 0f, m_CameraUpAxis.Z); //UP
            vector[5] = new Vector3(-m_CameraAtAxis.Z, 0f, -m_CameraUpAxis.Z); //DOWN
-            vector[5] = new Vector3(-m_CameraAtAxis.Z, 0f, -m_CameraUpAxis.Z); //DOWN_Nudge
+            vector[6] = new Vector3(m_CameraUpAxis.Z, 0f, -m_CameraAtAxis.Z); //FORWARD_NUDGE
+            vector[7] = new Vector3(-m_CameraUpAxis.Z, 0f, m_CameraAtAxis.Z); //BACK_NUDGE
+            vector[8] = Vector3.UnitY; //LEFT_NUDGE
+            vector[9] = -Vector3.UnitY; //RIGHT_NUDGE
+            vector[10] = new Vector3(-m_CameraAtAxis.Z, 0f, -m_CameraUpAxis.Z); //DOWN_NUDGE
            return vector;
        }
+        
+        private bool[] GetDirectionIsNudge()
+        {
+            bool[] isNudge = new bool[11];
+            isNudge[0] = false; //FORWARD
+            isNudge[1] = false; //BACK
+            isNudge[2] = false; //LEFT
+            isNudge[3] = false; //RIGHT
+            isNudge[4] = false; //UP
+            isNudge[5] = false; //DOWN
+            isNudge[6] = true; //FORWARD_NUDGE
+            isNudge[7] = true; //BACK_NUDGE
+            isNudge[8] = true; //LEFT_NUDGE
+            isNudge[9] = true; //RIGHT_NUDGE
+            isNudge[10] = true; //DOWN_Nudge
+            return isNudge;
+        }
        #endregion
@@ -994,7 +1030,9 @@ namespace OpenSim.Region.Framework.Scenes
            {
                AbsolutePosition = AbsolutePosition + new Vector3(0f, 0f, (1.56f / 6f));
            }
+            
+            m_updateCount = UPDATE_COUNT;                               //KF: Trigger Anim updates to catch falling anim. 
+            
            ControllingClient.SendAvatarTerseUpdate(new SendAvatarTerseData(m_rootRegionHandle, (ushort)(m_scene.TimeDilation * ushort.MaxValue), LocalId,
                    AbsolutePosition, Velocity, Vector3.Zero, m_bodyRot, new Vector4(0,0,1,AbsolutePosition.Z - 0.5f), m_uuid, null, GetUpdatePriority(ControllingClient)));
        }
@@ -1229,7 +1267,6 @@ namespace OpenSim.Region.Framework.Scenes
                    m_scene.PhysicsScene.RaycastWorld(m_pos, Vector3.Normalize(m_CameraCenter - posAdjusted), Vector3.Distance(m_CameraCenter, posAdjusted) + 0.3f, RayCastCameraCallback);
                }
            }
            lock (scriptedcontrols)
            {
                if (scriptedcontrols.Count > 0)
@@ -1244,9 +1281,7 @@ namespace OpenSim.Region.Framework.Scenes
            if ((flags & AgentManager.ControlFlags.AGENT_CONTROL_SIT_ON_GROUND) != 0)
            {
-                // TODO: This doesn't prevent the user from walking yet.
+                m_updateCount = 0;  // Kill animation update burst so that the SIT_G.. will stick.
-                // Setting parent ID would fix this, if we knew what value
-                // to use.  Or we could add a m_isSitting variable.
                Animator.TrySetMovementAnimation("SIT_GROUND_CONSTRAINED");
            }
@@ -1261,7 +1296,6 @@ namespace OpenSim.Region.Framework.Scenes
            {
                return;
            }
            if (m_allowMovement)
            {
                int i = 0;
@@ -1289,6 +1323,11 @@ namespace OpenSim.Region.Framework.Scenes
                    update_rotation = true;
                }
+                //guilty until proven innocent..
+                bool Nudging = true;
+                //Basically, if there is at least one non-nudge control then we don't need
+                //to worry about stopping the avatar
                if (m_parentID == 0)
                {
                    bool bAllowUpdateMoveToPosition = false;
@@ -1303,6 +1342,12 @@ namespace OpenSim.Region.Framework.Scenes
                    else
                        dirVectors = Dir_Vectors;
+                    bool[] isNudge = GetDirectionIsNudge();
+                    
+                    
+                    
                    foreach (Dir_ControlFlags DCF in DIR_CONTROL_FLAGS)
                    {
                        if (((uint)flags & (uint)DCF) != 0)
@@ -1312,6 +1357,10 @@ namespace OpenSim.Region.Framework.Scenes
                            try
                            {
                                agent_control_v3 += dirVectors[i];
+                                if (isNudge[i] == false)
+                                {
+                                    Nudging = false;
+                                }
                            }
                            catch (IndexOutOfRangeException)
                            {
@@ -1373,6 +1422,9 @@ namespace OpenSim.Region.Framework.Scenes
                                // Ignore z component of vector
                                Vector3 LocalVectorToTarget2D = new Vector3((float)(LocalVectorToTarget3D.X), (float)(LocalVectorToTarget3D.Y), 0f);
                                LocalVectorToTarget2D.Normalize();
+                                
+                                //We're not nudging
+                                Nudging = false;
                                agent_control_v3 += LocalVectorToTarget2D;
                                // update avatar movement flags. the avatar coordinate system is as follows:
@@ -1455,7 +1507,7 @@ namespace OpenSim.Region.Framework.Scenes
                    //                    m_log.DebugFormat(
                    //                        "In {0} adding velocity to {1} of {2}", m_scene.RegionInfo.RegionName, Name, agent_control_v3);
-                    AddNewMovement(agent_control_v3, q);
+                    AddNewMovement(agent_control_v3, q, Nudging);
                    if (update_movementflag)
                        Animator.UpdateMovementAnimations();
@@ -1474,7 +1526,6 @@ namespace OpenSim.Region.Framework.Scenes
            m_sitAtAutoTarget = false;
            PrimitiveBaseShape proxy = PrimitiveBaseShape.Default;
            //proxy.PCode = (byte)PCode.ParticleSystem;
            proxyObjectGroup = new SceneObjectGroup(UUID, Pos, Rotation, proxy);
            proxyObjectGroup.AttachToScene(m_scene);
            
@@ -1516,7 +1567,7 @@ namespace OpenSim.Region.Framework.Scenes
                }
                m_moveToPositionInProgress = true;
                m_moveToPositionTarget = new Vector3(locx, locy, locz);
-            }
+                        }
            catch (Exception ex)
            {
                //Why did I get this error?
@@ -1538,7 +1589,7 @@ namespace OpenSim.Region.Framework.Scenes
                        Velocity = Vector3.Zero;
                        SendFullUpdateToAllClients();
-                        //HandleAgentSit(ControllingClient, m_requestedSitTargetUUID);
+                        HandleAgentSit(ControllingClient, m_requestedSitTargetUUID);  //KF ??
                    }
                    //ControllingClient.SendSitResponse(m_requestedSitTargetID, m_requestedSitOffset, Quaternion.Identity, false, Vector3.Zero, Vector3.Zero, false);
                    m_requestedSitTargetUUID = UUID.Zero;
@@ -1576,38 +1627,40 @@ namespace OpenSim.Region.Framework.Scenes
                SceneObjectPart part = m_scene.GetSceneObjectPart(m_parentID);
                if (part != null)
                {
+                    part.TaskInventory.LockItemsForRead(true);
                    TaskInventoryDictionary taskIDict = part.TaskInventory;
                    if (taskIDict != null)
                    {
-                        lock (taskIDict)
+                        foreach (UUID taskID in taskIDict.Keys)
                        {
-                            foreach (UUID taskID in taskIDict.Keys)
+                            UnRegisterControlEventsToScript(LocalId, taskID);
-                            {
+                            taskIDict[taskID].PermsMask &= ~(
-                                UnRegisterControlEventsToScript(LocalId, taskID);
+                                2048 | //PERMISSION_CONTROL_CAMERA
-                                taskIDict[taskID].PermsMask &= ~(
+                                4); // PERMISSION_TAKE_CONTROLS
-                                    2048 | //PERMISSION_CONTROL_CAMERA
-                                    4); // PERMISSION_TAKE_CONTROLS
-                            }
                        }
                    }
+                    part.TaskInventory.LockItemsForRead(false);
                    // Reset sit target.
                    if (part.GetAvatarOnSitTarget() == UUID)
                        part.SetAvatarOnSitTarget(UUID.Zero);
                    m_parentPosition = part.GetWorldPosition();
                    ControllingClient.SendClearFollowCamProperties(part.ParentUUID);
                }
+                                // part.GetWorldRotation()   is the rotation of the object being sat on
+                                // Rotation  is the sittiing Av's rotation
+                                
+                                Quaternion wr = Quaternion.Inverse(Quaternion.Inverse(Rotation) * Quaternion.Inverse(part.GetWorldRotation())); // world or. of the av
+                                Vector3 so = new Vector3(1.0f, 0f, 0f) * wr;            // 1M infront of av
+                                Vector3 wso = so + part.GetWorldPosition() + ( m_pos * part.GetWorldRotation());                        // + av sit offset!
                if (m_physicsActor == null)
                {
                    AddToPhysicalScene(false);
                }
+                        AbsolutePosition = wso;                  //KF: Fix stand up.
-                m_pos += m_parentPosition + new Vector3(0.0f, 0.0f, 2.0f*m_sitAvatarHeight);
                m_parentPosition = Vector3.Zero;
+                                m_parentID = 0;
-                m_parentID = 0;
+                part.IsOccupied = false;
                SendFullUpdateToAllClients();
                m_requestedSitTargetID = 0;
                if ((m_physicsActor != null) && (m_avHeight > 0))
@@ -1646,13 +1699,9 @@ namespace OpenSim.Region.Framework.Scenes
                Vector3 avSitOffSet = part.SitTargetPosition;
                Quaternion avSitOrientation = part.SitTargetOrientation;
                UUID avOnTargetAlready = part.GetAvatarOnSitTarget();
+                bool SitTargetOccupied = (avOnTargetAlready != UUID.Zero);
-                bool SitTargetUnOccupied = (!(avOnTargetAlready != UUID.Zero));
+                    bool SitTargetisSet = (Vector3.Zero != avSitOffSet);                //NB Latest SL Spec shows Sit Rotation setting is ignored.
-                bool SitTargetisSet =
+                if (SitTargetisSet && !SitTargetOccupied)
-                    (!(avSitOffSet.X == 0f && avSitOffSet.Y == 0f && avSitOffSet.Z == 0f && avSitOrientation.W == 1f &&
-                       avSitOrientation.X == 0f && avSitOrientation.Y == 0f && avSitOrientation.Z == 0f));
-                if (SitTargetisSet && SitTargetUnOccupied)
                {
                    //switch the target to this prim
                    return part;
@@ -1666,7 +1715,7 @@ namespace OpenSim.Region.Framework.Scenes
        private void SendSitResponse(IClientAPI remoteClient, UUID targetID, Vector3 offset)
        {
            bool autopilot = true;
-            Vector3 pos = new Vector3();
+            Vector3 autopilotTarget = new Vector3();
            Quaternion sitOrientation = Quaternion.Identity;
            Vector3 cameraEyeOffset = Vector3.Zero;
            Vector3 cameraAtOffset = Vector3.Zero;
@@ -1674,76 +1723,104 @@ namespace OpenSim.Region.Framework.Scenes
            //SceneObjectPart part =  m_scene.GetSceneObjectPart(targetID);
            SceneObjectPart part =  FindNextAvailableSitTarget(targetID);
-            if (part != null)
+            if (part == null) return;
-            {
+            
-                // TODO: determine position to sit at based on scene geometry; don't trust offset from client
+            // TODO: determine position to sit at based on scene geometry; don't trust offset from client
-                // see http://wiki.secondlife.com/wiki/User:Andrew_Linden/Office_Hours/2007_11_06 for details on how LL does it
+            // see http://wiki.secondlife.com/wiki/User:Andrew_Linden/Office_Hours/2007_11_06 for details on how LL does it
+                
-                // Is a sit target available?
+                        // part is the prim to sit on
-                Vector3 avSitOffSet = part.SitTargetPosition;
+                        // offset is the world-ref vector distance from that prim center to the click-spot
-                Quaternion avSitOrientation = part.SitTargetOrientation;
+                        // UUID  is the UUID of the Avatar doing the clicking
-                UUID avOnTargetAlready = part.GetAvatarOnSitTarget();
+                                
+                        m_avInitialPos = AbsolutePosition;                      // saved to calculate unscripted sit rotation
-                bool SitTargetUnOccupied = (!(avOnTargetAlready != UUID.Zero));
+                        
-                bool SitTargetisSet =
+            // Is a sit target available?
-                    (!(avSitOffSet.X == 0f && avSitOffSet.Y == 0f && avSitOffSet.Z == 0f &&
+            Vector3 avSitOffSet = part.SitTargetPosition;
-                       (
+            Quaternion avSitOrientation = part.SitTargetOrientation;
-                           avSitOrientation.X == 0f && avSitOrientation.Y == 0f && avSitOrientation.Z == 0f && avSitOrientation.W == 1f // Valid Zero Rotation quaternion
-                           || avSitOrientation.X == 0f && avSitOrientation.Y == 0f && avSitOrientation.Z == 1f && avSitOrientation.W == 0f // W-Z Mapping was invalid at one point
+            bool SitTargetisSet = (Vector3.Zero != avSitOffSet);                //NB Latest SL Spec shows Sit Rotation setting is ignored.
-                           || avSitOrientation.X == 0f && avSitOrientation.Y == 0f && avSitOrientation.Z == 0f && avSitOrientation.W == 0f // Invalid Quaternion
+                Quaternion partIRot = Quaternion.Inverse(part.GetWorldRotation());
-                       )
+                       
-                       ));
+//Console.WriteLine("SendSitResponse offset=" + offset + "  Occup=" + part.IsOccupied + "    TargSet=" + SitTargetisSet);
+                        // Sit analysis rewritten by KF 091125 
-                if (SitTargetisSet && SitTargetUnOccupied)
+            if (SitTargetisSet)                 // scipted sit
-                {
+            {
-                    part.SetAvatarOnSitTarget(UUID);
+                                if (!part.IsOccupied)
-                    offset = new Vector3(avSitOffSet.X, avSitOffSet.Y, avSitOffSet.Z);
+                                {
-                    sitOrientation = avSitOrientation;
+//Console.WriteLine("Scripted, unoccupied");                                    
-                    autopilot = false;
+                    part.SetAvatarOnSitTarget(UUID);            // set that Av will be on it
-                }
+                    offset = new Vector3(avSitOffSet.X, avSitOffSet.Y, avSitOffSet.Z);  // change ofset to the scripted one
+                    sitOrientation = avSitOrientation;          // Change rotatione to the scripted one
-                pos = part.AbsolutePosition + offset;
+                    autopilot = false;                                          // Jump direct to scripted llSitPos()
-                //if (Math.Abs(part.AbsolutePosition.Z - AbsolutePosition.Z) > 1)
+                }
-                //{
+                else
-                   // offset = pos;
+                {
-                    //autopilot = false;
+//Console.WriteLine("Scripted, occupied");                      
-                //}
+                         return;
-                if (m_physicsActor != null)
+                }
-                {
+            }
-                    // If we're not using the client autopilot, we're immediately warping the avatar to the location
+            else        // Not Scripted
-                    // We can remove the physicsActor until they stand up.
+            {
-                    m_sitAvatarHeight = m_physicsActor.Size.Z;
+                if ( (Math.Abs(offset.X) > 0.5f) || (Math.Abs(offset.Y) > 0.5f) ) 
+                {
-                    if (autopilot)
+                        // large prim & offset, ignore if other Avs sitting
-                    {
+//                      offset.Z -= 0.05f;
-                        if (Util.GetDistanceTo(AbsolutePosition, pos) < 4.5)
+                        m_avUnscriptedSitPos = offset * partIRot;                                       // (non-zero) sit where clicked
-                        {
+                        autopilotTarget = part.AbsolutePosition + offset;                       // World location of clicked point
-                            autopilot = false;
+                        
+//Console.WriteLine(" offset ={0}", offset);            
+//Console.WriteLine(" UnscriptedSitPos={0}", m_avUnscriptedSitPos);            
+//Console.WriteLine(" autopilotTarget={0}", autopilotTarget);            
+                        
+                }
+                else            // small offset
+                {
+//Console.WriteLine("Small offset");                            
+                                        if (!part.IsOccupied)
+                                        {
+                                                m_avUnscriptedSitPos = Vector3.Zero;    // Zero = Sit on prim center
+                                                autopilotTarget = part.AbsolutePosition;
+                        }
+                        else return;            // occupied small
+                }       // end large/small
+            } // end Scripted/not
+            cameraAtOffset = part.GetCameraAtOffset();
+            cameraEyeOffset = part.GetCameraEyeOffset();
+            forceMouselook = part.GetForceMouselook();
-                            RemoveFromPhysicalScene();
+            if (m_physicsActor != null)
-                            AbsolutePosition = pos + new Vector3(0.0f, 0.0f, m_sitAvatarHeight);
+            {
-                        }
+                // If we're not using the client autopilot, we're immediately warping the avatar to the location
-                    }
+                // We can remove the physicsActor until they stand up.
-                    else
+                m_sitAvatarHeight = m_physicsActor.Size.Z;
+                if (autopilot)
+                {                               // its not a scripted sit
+//                        if (Util.GetDistanceTo(AbsolutePosition, autopilotTarget) < 4.5)
+                                        if( (Math.Abs(AbsolutePosition.X - autopilotTarget.X) < 2.0f) && (Math.Abs(AbsolutePosition.Y - autopilotTarget.Y) < 2.0f) )
                    {
+                        autopilot = false;              // close enough
                        RemoveFromPhysicalScene();
-                    }
+                        AbsolutePosition = autopilotTarget + new Vector3(0.0f, 0.0f, (m_sitAvatarHeight / 2.0f));  // Warp av to over sit target
+                    } // else the autopilot will get us close
+                }
+                else
+                {       // its a scripted sit
+                    RemoveFromPhysicalScene();
                }
-                cameraAtOffset = part.GetCameraAtOffset();
-                cameraEyeOffset = part.GetCameraEyeOffset();
-                forceMouselook = part.GetForceMouselook();
            }
+            else return;    // physactor is null! 
-            ControllingClient.SendSitResponse(targetID, offset, sitOrientation, autopilot, cameraAtOffset, cameraEyeOffset, forceMouselook);
+                        Vector3 offsetr = offset * partIRot;            
-            m_requestedSitTargetUUID = targetID;
+            ControllingClient.SendSitResponse(part.UUID, offsetr, sitOrientation, autopilot, cameraAtOffset, cameraEyeOffset, forceMouselook);
+            m_requestedSitTargetUUID = part.UUID;               //KF: Correct autopilot target
            // This calls HandleAgentSit twice, once from here, and the client calls
            // HandleAgentSit itself after it gets to the location
            // It doesn't get to the location until we've moved them there though
            // which happens in HandleAgentSit :P
            m_autopilotMoving = autopilot;
-            m_autoPilotTarget = pos;
+            m_autoPilotTarget = autopilotTarget;
            m_sitAtAutoTarget = autopilot;
+            m_initialSitTarget = autopilotTarget;
            if (!autopilot)
                HandleAgentSit(remoteClient, UUID);
        }
@@ -1839,29 +1916,55 @@ namespace OpenSim.Region.Framework.Scenes
                {
                    if (part.GetAvatarOnSitTarget() == UUID)
                    {
+//Console.WriteLine("Scripted Sit");
+                        // Scripted sit
                        Vector3 sitTargetPos = part.SitTargetPosition;
                        Quaternion sitTargetOrient = part.SitTargetOrientation;
-                        //Quaternion vq = new Quaternion(sitTargetPos.X, sitTargetPos.Y+0.2f, sitTargetPos.Z+0.2f, 0);
-                        //Quaternion nq = new Quaternion(-sitTargetOrient.X, -sitTargetOrient.Y, -sitTargetOrient.Z, sitTargetOrient.w);
-                        //Quaternion result = (sitTargetOrient * vq) * nq;
                        m_pos = new Vector3(sitTargetPos.X, sitTargetPos.Y, sitTargetPos.Z);
                        m_pos += SIT_TARGET_ADJUSTMENT;
                        m_bodyRot = sitTargetOrient;
-                        //Rotation = sitTargetOrient;
                        m_parentPosition = part.AbsolutePosition;
+                            part.IsOccupied = true;                        
-                        //SendTerseUpdateToAllClients();
                    }
                    else
                    {
-                        m_pos -= part.AbsolutePosition;
+//Console.WriteLine("NON Scripted Sit");
+                                                // if m_avUnscriptedSitPos is zero then Av sits above center
+                                                // Else Av sits at m_avUnscriptedSitPos                                         
+                                                
+                        // Non-scripted sit by Kitto Flora 21Nov09
+                        // Calculate angle of line from prim to Av
+                        Quaternion partIRot = Quaternion.Inverse(part.GetWorldRotation());
+                        Vector3 sitTargetPos= part.AbsolutePosition + m_avUnscriptedSitPos;
+                                float y_diff = (m_avInitialPos.Y - sitTargetPos.Y);
+                        float x_diff = ( m_avInitialPos.X - sitTargetPos.X);
+                        if(Math.Abs(x_diff) < 0.001f) x_diff = 0.001f;                  // avoid div by 0
+                        if(Math.Abs(y_diff) < 0.001f) y_diff = 0.001f;                  // avoid pol flip at 0
+                        float sit_angle = (float)Math.Atan2( (double)y_diff, (double)x_diff);
+                                                // NOTE: when sitting m_ pos and m_bodyRot are *relative* to the prim location/rotation, not 'World'.
+                        //  Av sits at world euler <0,0, z>, translated by part rotation 
+                        m_bodyRot = partIRot * Quaternion.CreateFromEulers(0f, 0f, sit_angle);          // sit at 0,0,inv-click
+                        
                        m_parentPosition = part.AbsolutePosition;
-                    }
+                        part.IsOccupied = true;
-                }
+                        m_pos = new Vector3(0f, 0f, 0.05f) +                                    // corrections to get Sit Animation
-                else
+                                        (new Vector3(0.0f, 0f, 0.61f) * partIRot) +     // located on center
+                                        (new Vector3(0.34f, 0f, 0.0f) * m_bodyRot) +
+                                        m_avUnscriptedSitPos;                                                   // adds click offset, if any
+                            //Set up raytrace to find top surface of prim
+                                        Vector3 size = part.Scale;
+                                                float mag = 0.1f + (float)Math.Sqrt((size.X * size.X) + (size.Y * size.Y) + (size.Z * size.Z));
+                                                Vector3 start =  part.AbsolutePosition + new Vector3(0f, 0f, mag);
+                                                Vector3 down = new Vector3(0f, 0f, -1f);    
+//Console.WriteLine("st={0}  do={1}  ma={2}", start, down, mag);                                                
+                                m_scene.PhysicsScene.RaycastWorld(
+                                        start,          // Vector3 position,
+                                        down,           // Vector3 direction,
+                                        mag,            // float length,
+                                        SitAltitudeCallback);           // retMethod
+                        } // end scripted/not
+                }
+                else  // no Av
                {
                    return;
                }
@@ -1873,11 +1976,26 @@ namespace OpenSim.Region.Framework.Scenes
            Animator.TrySetMovementAnimation(sitAnimation);
            SendFullUpdateToAllClients();
-            // This may seem stupid, but Our Full updates don't send avatar rotation :P
-            // So we're also sending a terse update (which has avatar rotation)
-            // [Update] We do now.
-            //SendTerseUpdateToAllClients();
        }
+        
+        public void SitAltitudeCallback(bool hitYN, Vector3 collisionPoint, uint localid, float distance, Vector3 normal)
+        {
+                        // KF: 091202 There appears to be a bug in Prim Edit Size - the process sometimes make a prim that RayTrace no longer
+                        //     sees. Take/re-rez, or sim restart corrects the condition. Result of bug is incorrect sit height.
+                        if(hitYN)
+                        {
+                                // m_pos = Av offset from prim center to make look like on center
+                                // m_parentPosition = Actual center pos of prim
+                                // collisionPoint = spot on prim where we want to sit
+                                // collisionPoint.Z = global sit surface height
+                                SceneObjectPart part = m_scene.GetSceneObjectPart(localid);
+                                Quaternion partIRot = Quaternion.Inverse(part.GetWorldRotation());
+                                float offZ = collisionPoint.Z - m_initialSitTarget.Z;
+                                Vector3 offset = new Vector3(0.0f, 0.0f, offZ) * partIRot; // Altitude correction
+//Console.WriteLine("sitPoint={0},  offset={1}",  sitPoint,  offset);
+                                m_pos += offset;
+                        }
+                } // End SitAltitudeCallback  KF.
        /// <summary>
        /// Event handler for the 'Always run' setting on the client
@@ -1907,7 +2025,7 @@ namespace OpenSim.Region.Framework.Scenes
        /// </summary>
        /// <param name="vec">The vector in which to move.  This is relative to the rotation argument</param>
        /// <param name="rotation">The direction in which this avatar should now face.
-        public void AddNewMovement(Vector3 vec, Quaternion rotation)
+        public void AddNewMovement(Vector3 vec, Quaternion rotation, bool Nudging)
        {
            if (m_isChildAgent)
            {
@@ -1981,7 +2099,7 @@ namespace OpenSim.Region.Framework.Scenes
            // TODO: Add the force instead of only setting it to support multiple forces per frame?
            m_forceToApply = direc;
+            m_isNudging = Nudging;
            m_scene.StatsReporter.AddAgentTime(Util.EnvironmentTickCountSubtract(m_perfMonMS));
        }
@@ -1996,7 +2114,7 @@ namespace OpenSim.Region.Framework.Scenes
            const float POSITION_TOLERANCE = 0.05f;
            //const int TIME_MS_TOLERANCE = 3000;
-            SendPrimUpdates();
+            
            if (m_newCoarseLocations)
            {
@@ -2032,6 +2150,9 @@ namespace OpenSim.Region.Framework.Scenes
                    CheckForBorderCrossing();
                CheckForSignificantMovement(); // sends update to the modules.
            }
+            
+            //Sending prim updates AFTER the avatar terse updates are sent
+            SendPrimUpdates();
        }
        #endregion
@@ -2885,14 +3006,25 @@ namespace OpenSim.Region.Framework.Scenes
        {
            if (m_forceToApply.HasValue)
            {
-                Vector3 force = m_forceToApply.Value;
+                Vector3 force = m_forceToApply.Value;
                m_updateflag = true;
-//                movementvector = force;
                Velocity = force;
                m_forceToApply = null;
            }
+            else
+            {
+                if (m_isNudging)
+                {
+                    Vector3 force = Vector3.Zero;
+                    m_updateflag = true;
+                    Velocity = force;
+                    m_isNudging = false;
+                    m_updateCount = UPDATE_COUNT;                       //KF: Update anims to pickup "STAND"
+                }
+            }
        }
        public override void SetText(string text, Vector3 color, double alpha)
@@ -2942,10 +3074,15 @@ namespace OpenSim.Region.Framework.Scenes
        // Event called by the physics plugin to tell the avatar about a collision.
        private void PhysicsCollisionUpdate(EventArgs e)
        {
+                        if (m_updateCount > 0)                  //KF: Update Anims for a short period. Many Anim
+                        {                                                               // changes are very asynchronous.
+                Animator.UpdateMovementAnimations();
+                m_updateCount--;
+                        }
+                        
            if (e == null)
                return;
-            //if ((Math.Abs(Velocity.X) > 0.1e-9f) || (Math.Abs(Velocity.Y) > 0.1e-9f))
            // The Physics Scene will send updates every 500 ms grep: m_physicsActor.SubscribeEvents(
            // as of this comment the interval is set in AddToPhysicalScene
            if (Animator!=null)
@@ -2956,6 +3093,12 @@ namespace OpenSim.Region.Framework.Scenes
            CollisionPlane = Vector4.UnitW;
+                        if (m_lastColCount != coldata.Count)
+                        {       
+                                m_updateCount = 10;
+                                m_lastColCount = coldata.Count;
+                        }
+                        
            if (coldata.Count != 0 && Animator != null)
            {
                switch (Animator.CurrentMovementAnimation)
@@ -3603,5 +3746,16 @@ namespace OpenSim.Region.Framework.Scenes
                m_reprioritization_called = false;
            }
        }
+        
+        private Vector3 Quat2Euler(Quaternion rot){
+                float x = Utils.RAD_TO_DEG * (float)Math.Atan2((double)((2.0f * rot.X * rot.W) - (2.0f * rot.Y * rot.Z)) , 
+                                                                                                                (double)(1 - (2.0f * rot.X * rot.X) - (2.0f * rot.Z * rot.Z)));
+                float y = Utils.RAD_TO_DEG * (float)Math.Asin ((double)((2.0f * rot.X * rot.Y) + (2.0f * rot.Z * rot.W)));
+                float z = Utils.RAD_TO_DEG * (float)Math.Atan2(((double)(2.0f * rot.Y * rot.W) - (2.0f * rot.X * rot.Z)) , 
+                                                                                                                (double)(1 - (2.0f * rot.Y * rot.Y) - (2.0f * rot.Z * rot.Z)));
+                return(new Vector3(x,y,z));
+            }
    }
-}
-\ No newline at end of file
+}
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
index 8a27b7b..5abbb82 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
@@ -101,7 +101,16 @@ namespace OpenSim.Region.Framework.Scenes.Tests
                {
                    throw new NotImplementedException();
                }
+                public RegionMeta7WindlightData LoadRegionWindlightSettings(UUID regionUUID)
+                {
+                    //This connector doesn't support the windlight module yet
+                    //Return default LL windlight settings
+                    return new RegionMeta7WindlightData();
+                }
+                public void StoreRegionWindlightSettings(RegionMeta7WindlightData wl)
+                {
+                    //This connector doesn't support the windlight module yet
+                }
                public RegionSettings LoadRegionSettings(UUID regionUUID)
                {
                    return null;
diff --git a/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs b/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
index 6c3e7eb..bdf1574 100644
--- a/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
+++ b/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
@@ -936,7 +936,7 @@ namespace OpenSim.Region.OptionalModules.Agent.InternetRelayClientView.Server
            // TODO
        }
-        public void SendGenericMessage(string method, List<string> message)
+        public void SendGenericMessage(string method, List<byte[]> message)
        {
            
        }
diff --git a/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs b/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
index cf36d08..975033a 100644
--- a/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
+++ b/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
@@ -522,7 +522,7 @@ namespace OpenSim.Region.OptionalModules.World.NPC
            
        }
-        public void SendGenericMessage(string method, List<string> message)
+        public void SendGenericMessage(string method, List<byte[]> message)
        {
        }
diff --git a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsActor.cs b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsActor.cs
index 8df997e..f411dd7 100644
--- a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsActor.cs
+++ b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsActor.cs
@@ -303,6 +303,26 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
            set { return; }
        }
+        public override Quaternion APIDTarget 
+        { 
+                set { return; }
+        }
+        
+        public override bool APIDActive
+        { 
+                set { return; }
+        }
+        
+        public override float APIDStrength
+        { 
+                set { return; }
+        }
+        
+        public override float APIDDamping
+        { 
+                set { return; }
+        }
        public override void SubscribeEvents(int ms)
        {
        }
diff --git a/OpenSim/Region/Physics/BulletDotNETPlugin/BulletDotNETCharacter.cs b/OpenSim/Region/Physics/BulletDotNETPlugin/BulletDotNETCharacter.cs
index 5ed3b14..98681d6 100644
--- a/OpenSim/Region/Physics/BulletDotNETPlugin/BulletDotNETCharacter.cs
+++ b/OpenSim/Region/Physics/BulletDotNETPlugin/BulletDotNETCharacter.cs
@@ -619,6 +619,12 @@ namespace OpenSim.Region.Physics.BulletDotNETPlugin
        {
            set { return; }
        }
+        
+        public override Quaternion APIDTarget { set { return; } }
+        public override bool APIDActive { set { return; } }
+        public override float APIDStrength { set { return; } }
+        public override float APIDDamping { set { return; } }
+        
        /// <summary>
        /// Adds the force supplied to the Target Velocity
diff --git a/OpenSim/Region/Physics/BulletDotNETPlugin/BulletDotNETPrim.cs b/OpenSim/Region/Physics/BulletDotNETPlugin/BulletDotNETPrim.cs
index 5b542db..d931f126 100644
--- a/OpenSim/Region/Physics/BulletDotNETPlugin/BulletDotNETPrim.cs
+++ b/OpenSim/Region/Physics/BulletDotNETPlugin/BulletDotNETPrim.cs
@@ -565,6 +565,11 @@ namespace OpenSim.Region.Physics.BulletDotNETPlugin
        public override PIDHoverType PIDHoverType { set { m_PIDHoverType = value; } }
        public override float PIDHoverTau { set { m_PIDHoverTau = value; } }
+        public override Quaternion APIDTarget { set { return; } }
+        public override bool APIDActive { set { return; } }
+        public override float APIDStrength { set { return; } }
+        public override float APIDDamping { set { return; } }
+        
        public override void AddForce(Vector3 force, bool pushforce)
        {
diff --git a/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs b/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
index 1e94ee2..d5d146e 100644
--- a/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
+++ b/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
@@ -1238,6 +1238,26 @@ namespace OpenSim.Region.Physics.BulletXPlugin
        public override PIDHoverType PIDHoverType { set { return; } }
        public override float PIDHoverTau { set { return; } }
+        public override OpenMetaverse.Quaternion APIDTarget
+        {
+            set { return; }
+        }
+        public override bool APIDActive
+        {
+            set { return; }
+        }
+        public override float APIDStrength
+        {
+            set { return; }
+        }
+        public override float APIDDamping
+        {
+            set { return; }
+        }
        public override void SubscribeEvents(int ms)
        {
diff --git a/OpenSim/Region/Physics/Manager/PhysicsActor.cs b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
index f58129d..b82586f 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsActor.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
@@ -243,7 +243,12 @@ namespace OpenSim.Region.Physics.Manager
        public abstract PIDHoverType PIDHoverType { set;}
        public abstract float PIDHoverTau { set;}
+                // For RotLookAt        
+        public abstract Quaternion APIDTarget { set;}
+        public abstract bool APIDActive { set;}
+        public abstract float APIDStrength { set;}
+        public abstract float APIDDamping { set;}
+        
        public abstract void AddForce(Vector3 force, bool pushforce);
        public abstract void AddAngularForce(Vector3 force, bool pushforce);
        public abstract void SetMomentum(Vector3 momentum);
@@ -476,6 +481,12 @@ namespace OpenSim.Region.Physics.Manager
        public override bool PIDHoverActive { set { return; } }
        public override PIDHoverType PIDHoverType { set { return; } }
        public override float PIDHoverTau { set { return; } }
+        
+        public override Quaternion APIDTarget { set { return; } }
+        public override bool APIDActive { set { return; } }
+        public override float APIDStrength { set { return; } }
+        public override float APIDDamping { set { return; } }
+        
        public override void SetMomentum(Vector3 momentum)
        {
diff --git a/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs b/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
index 40fbde1..b99baa2 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
@@ -1196,6 +1196,28 @@ namespace OpenSim.Region.Physics.OdePlugin
        public override bool PIDHoverActive { set { return; } }
        public override PIDHoverType PIDHoverType { set { return; } }
        public override float PIDHoverTau { set { return; } }
+        
+        public override Quaternion APIDTarget
+        {
+            set { return; }
+        }
+        public override bool APIDActive
+        {
+            set { return; }
+        }
+        public override float APIDStrength
+        {
+            set { return; }
+        }
+        public override float APIDDamping
+        {
+            set { return; }
+        }
        public override void SubscribeEvents(int ms)
        {
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEDynamics.cs b/OpenSim/Region/Physics/OdePlugin/ODEDynamics.cs
index 39cdc0f..78b15be 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEDynamics.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEDynamics.cs
@@ -23,6 +23,19 @@
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Revised Aug, Sept 2009 by Kitto Flora. ODEDynamics.cs replaces
+ * ODEVehicleSettings.cs. It and ODEPrim.cs are re-organised:
+ * ODEPrim.cs contains methods dealing with Prim editing, Prim
+ * characteristics and Kinetic motion.
+ * ODEDynamics.cs contains methods dealing with Prim Physical motion
+ * (dynamics) and the associated settings. Old Linear and angular
+ * motors for dynamic motion have been replace with  MoveLinear()
+ * and MoveAngular(); 'Physical' is used only to switch ODE dynamic 
+ * simualtion on/off; VEHICAL_TYPE_NONE/VEHICAL_TYPE_<other> is to
+ * switch between 'VEHICLE' parameter use and general dynamics
+ * settings use.
+ * 
 */
 /* Revised Aug, Sept 2009 by Kitto Flora. ODEDynamics.cs replaces
@@ -120,7 +133,7 @@ namespace OpenSim.Region.Physics.OdePlugin
 //        private float m_VhoverEfficiency = 0f;
        private float m_VhoverTimescale = 0f;
        private float m_VhoverTargetHeight = -1.0f;     // if <0 then no hover, else its the current target height 
-        private float m_VehicleBuoyancy = 0f;                   //KF: m_VehicleBuoyancy is set by VEHICLE_BUOYANCY for a vehicle.
+        private float m_VehicleBuoyancy = 0f;                   // Set by VEHICLE_BUOYANCY, for a vehicle.
                                // Modifies gravity. Slider between -1 (double-gravity) and 1 (full anti-gravity) 
                                // KF: So far I have found no good method to combine a script-requested .Z velocity and gravity.
                                // Therefore only m_VehicleBuoyancy=1 (0g) will use the script-requested .Z velocity. 
@@ -479,7 +492,7 @@ namespace OpenSim.Region.Physics.OdePlugin
                Quaternion rotq = new Quaternion(rot.X, rot.Y, rot.Z, rot.W);   // rotq = rotation of object
                m_dir *= rotq;                                                  // apply obj rotation to velocity vector
-                        // add Gravity andBuoyancy
+                        // add Gravity and Buoyancy
                        // KF: So far I have found no good method to combine a script-requested
                        // .Z velocity and gravity. Therefore only 0g will used script-requested
                        // .Z velocity. >0g (m_VehicleBuoyancy < 1) will used modified gravity only.
@@ -561,6 +574,7 @@ namespace OpenSim.Region.Physics.OdePlugin
                private Vector3 m_angularFrictionTimescale = Vector3.Zero;              // body angular velocity  decay rate
                private Vector3 m_lastAngularVelocity = Vector3.Zero;                   // what was last applied to body
                        */
+//if(frcount == 0) Console.WriteLine("MoveAngular ");   
        
                // Get what the body is doing, this includes 'external' influences
                d.Vector3 angularVelocity = d.BodyGetAngularVel(Body);
@@ -636,7 +650,7 @@ namespace OpenSim.Region.Physics.OdePlugin
                        // Deflection section tba
                        
                        // Sum velocities
-                        m_lastAngularVelocity = m_angularMotorVelocity + vertattr; // + bank + deflection
+                        m_lastAngularVelocity = m_angularMotorVelocity + vertattr; // tba: + bank + deflection
                        
                if (!m_lastAngularVelocity.ApproxEquals(Vector3.Zero, 0.01f))
            {
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index d241574..c27c420 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -21,6 +21,18 @@
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Revised August 26 2009 by Kitto Flora. ODEDynamics.cs replaces
+ * ODEVehicleSettings.cs. It and ODEPrim.cs are re-organised:
+ * ODEPrim.cs contains methods dealing with Prim editing, Prim
+ * characteristics and Kinetic motion.
+ * ODEDynamics.cs contains methods dealing with Prim Physical motion
+ * (dynamics) and the associated settings. Old Linear and angular
+ * motors for dynamic motion have been replace with  MoveLinear()
+ * and MoveAngular(); 'Physical' is used only to switch ODE dynamic 
+ * simualtion on/off; VEHICAL_TYPE_NONE/VEHICAL_TYPE_<other> is to
+ * switch between 'VEHICLE' parameter use and general dynamics
+ * settings use.
 */
 /*
@@ -81,7 +93,12 @@ namespace OpenSim.Region.Physics.OdePlugin
        private float m_PIDTau;
        private float PID_D = 35f;
        private float PID_G = 25f;
-        private bool m_usePID;
+        private bool m_usePID = false;
+        
+        private Quaternion m_APIDTarget = new Quaternion();
+        private float m_APIDStrength = 0.5f;
+        private float m_APIDDamping = 0.5f;
+        private bool m_useAPID = false;
        // KF: These next 7 params apply to llSetHoverHeight(float height, integer water, float tau),
        // and are for non-VEHICLES only.
@@ -182,6 +199,9 @@ namespace OpenSim.Region.Physics.OdePlugin
        private ODEDynamics m_vehicle;
        internal int m_material = (int)Material.Wood;
+        
+        private int frcount = 0;                                                                                // Used to limit dynamics debug output to 
        public OdePrim(String primName, OdeScene parent_scene, Vector3 pos, Vector3 size,
                       Quaternion rotation, IMesh mesh, PrimitiveBaseShape pbs, bool pisPhysical, CollisionLocker dode)
@@ -1561,9 +1581,14 @@ Console.WriteLine(" JointCreateFixed");
            float fy = 0;
            float fz = 0;
+            frcount++;                                  // used to limit debug comment output
+            if (frcount > 100)
+                frcount = 0;
                
            if (IsPhysical && (Body != IntPtr.Zero) && !m_isSelected && !childPrim)             // KF: Only move root prims.
            {
+//if(frcount == 0) Console.WriteLine("Move " +  m_primName + "  VTyp " + m_vehicle.Type +
+                        //                      "    usePID=" + m_usePID  + "    seHover=" + m_useHoverPID  + "  useAPID=" + m_useAPID);                
                if (m_vehicle.Type != Vehicle.TYPE_NONE)
                {
                        // 'VEHICLES' are dealt with in ODEDynamics.cs
@@ -1571,7 +1596,6 @@ Console.WriteLine(" JointCreateFixed");
                }
                else
                {
-//Console.WriteLine("Move " +  m_primName);             
                        if(!d.BodyIsEnabled (Body))  d.BodyEnable (Body); // KF add 161009
                        // NON-'VEHICLES' are dealt with here
                        if (d.BodyIsEnabled(Body) && !m_angularlock.ApproxEquals(Vector3.Zero, 0.003f))
@@ -1593,21 +1617,18 @@ Console.WriteLine(" JointCreateFixed");
                    //m_log.Info(m_collisionFlags.ToString());
                        
-                        //KF: m_buoyancy should be set by llSetBuoyancy() for non-vehicle.
+                        //KF: m_buoyancy is set by llSetBuoyancy() and is for non-vehicle.
-                        // would come from SceneObjectPart.cs, public void SetBuoyancy(float fvalue) , PhysActor.Buoyancy = fvalue; ??
                        // m_buoyancy: (unlimited value) <0=Falls fast; 0=1g; 1=0g; >1 = floats up 
-                        // gravityz multiplier = 1 - m_buoyancy
+                        // NB Prims in ODE are no subject to global gravity
-                        fz = _parent_scene.gravityz * (1.0f - m_buoyancy) * m_mass;
+                        fz = _parent_scene.gravityz * (1.0f - m_buoyancy) * m_mass; // force = acceleration * mass
                        if (m_usePID)
                        {
-//Console.WriteLine("PID " +  m_primName);              
+//if(frcount == 0) Console.WriteLine("PID " +  m_primName);             
-                        // KF - this is for object move? eg. llSetPos() ?
+                        // KF - this is for object MoveToTarget.
+                        
                            //if (!d.BodyIsEnabled(Body))
                            //d.BodySetForce(Body, 0f, 0f, 0f);
-                            // If we're using the PID controller, then we have no gravity
-                            //fz = (-1 * _parent_scene.gravityz) * m_mass;      //KF: ?? Prims have no global gravity,so simply...
-                            fz = 0f;
                            //  no lock; for now it's only called from within Simulate()
        
@@ -1742,7 +1763,7 @@ Console.WriteLine(" JointCreateFixed");
                            d.BodySetPosition(Body, pos.X, pos.Y, m_targetHoverHeight);
                            d.BodySetLinearVel(Body, vel.X, vel.Y, 0);
                            d.BodyAddForce(Body, 0, 0, fz);
-                            return;
+                    //KF this prevents furthur motions        return;
                        }
                        else
                        {
@@ -1751,8 +1772,46 @@ Console.WriteLine(" JointCreateFixed");
                            // We're flying and colliding with something
                            fz = fz + ((_target_velocity.Z - vel.Z) * (PID_D) * m_mass);
                        }
-                    }
+                    } // end m_useHoverPID && !m_usePID
+                    
+                        if (m_useAPID)
+                        {
+                                // RotLookAt, apparently overrides all other rotation sources. Inputs:
+                                // Quaternion m_APIDTarget
+                                                // float m_APIDStrength         // From SL experiments, this is the time to get there
+                                                // float m_APIDDamping          // From SL experiments, this is damping, 1.0 = damped, 0.1 = wobbly
+                                                                                                        // Also in SL the mass of the object has no effect on time to get there.
+                                                // Factors:
+//if(frcount == 0) Console.WriteLine("APID ");                                                  
+                                    // get present body rotation
+                                    float limit = 1.0f;
+                                    float scaler = 50f;         // adjusts damping time
+                                    float RLAservo = 0f;
+                                    
+                                    d.Quaternion rot = d.BodyGetQuaternion(Body);
+                                    Quaternion rotq = new Quaternion(rot.X, rot.Y, rot.Z, rot.W);
+                                    Quaternion rot_diff = Quaternion.Inverse(rotq) * m_APIDTarget;
+                        float diff_angle;
+                        Vector3 diff_axis;
+                        rot_diff.GetAxisAngle(out diff_axis, out diff_angle);
+                        diff_axis.Normalize();
+                                                if(diff_angle > 0.01f)                  // diff_angle is always +ve
+                                                {
+//                              PhysicsVector rotforce = new PhysicsVector(diff_axis.X, diff_axis.Y, diff_axis.Z);
+                                Vector3 rotforce = new Vector3(diff_axis.X, diff_axis.Y, diff_axis.Z);
+                            rotforce = rotforce * rotq;
+                            if(diff_angle > limit) diff_angle = limit;          // cap the rotate rate
+//                          RLAservo = timestep / m_APIDStrength * m_mass * scaler;
+  //                        rotforce = rotforce * RLAservo * diff_angle ;
+    //                      d.BodyAddRelTorque(Body, rotforce.X, rotforce.Y, rotforce.Z);
+                            RLAservo = timestep / m_APIDStrength * scaler;
+                            rotforce = rotforce * RLAservo * diff_angle ;
+                                                        d.BodySetAngularVel (Body,  rotforce.X, rotforce.Y, rotforce.Z);
+//Console.WriteLine("axis= " + diff_axis + "    angle= " + diff_angle + "servo= " + RLAservo);                                                  
+                                                }
+//if(frcount == 0) Console.WriteLine("mass= " + m_mass + "  servo= " + RLAservo + "   angle= " + diff_angle);                                                   
+                        } // end m_useAPID
+                        
                    fx *= m_mass;
                    fy *= m_mass;
                    //fz *= m_mass;
@@ -2822,6 +2881,12 @@ Console.WriteLine(" JointCreateFixed");
        }
        public override bool PIDActive { set { m_usePID = value; } }
        public override float PIDTau { set { m_PIDTau = value; } }
+        
+                // For RotLookAt        
+        public override Quaternion APIDTarget { set { m_APIDTarget = value; } }
+        public override bool APIDActive { set { m_useAPID = value; } }
+        public override float APIDStrength { set { m_APIDStrength = value; } }
+        public override float APIDDamping { set { m_APIDDamping = value; } }
        public override float PIDHoverHeight { set { m_PIDHoverHeight = value; ; } }
        public override bool PIDHoverActive { set { m_useHoverPID = value; } }
diff --git a/OpenSim/Region/Physics/POSPlugin/POSCharacter.cs b/OpenSim/Region/Physics/POSPlugin/POSCharacter.cs
index 26cd1dd..566b4e7 100644
--- a/OpenSim/Region/Physics/POSPlugin/POSCharacter.cs
+++ b/OpenSim/Region/Physics/POSPlugin/POSCharacter.cs
@@ -304,6 +304,27 @@ namespace OpenSim.Region.Physics.POSPlugin
        {
            set { return; }
        }
+        
+        public override Quaternion APIDTarget
+        {
+            set { return; }
+        }
+        public override bool APIDActive
+        {
+            set { return; }
+        }
+        public override float APIDStrength
+        {
+            set { return; }
+        }
+        public override float APIDDamping
+        {
+            set { return; }
+        }
        public override void SubscribeEvents(int ms)
        {
diff --git a/OpenSim/Region/Physics/POSPlugin/POSPrim.cs b/OpenSim/Region/Physics/POSPlugin/POSPrim.cs
index 96c3e26..847b634 100644
--- a/OpenSim/Region/Physics/POSPlugin/POSPrim.cs
+++ b/OpenSim/Region/Physics/POSPlugin/POSPrim.cs
@@ -299,6 +299,26 @@ namespace OpenSim.Region.Physics.POSPlugin
        {
            set { return; }
        }
+        public override Quaternion APIDTarget
+        {
+            set { return; }
+        }
+        public override bool APIDActive
+        {
+            set { return; }
+        }
+        public override float APIDStrength
+        {
+            set { return; }
+        }
+        public override float APIDDamping
+        {
+            set { return; }
+        }
        public override void SubscribeEvents(int ms)
        {
diff --git a/OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs b/OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs
index 8bdb18d..24eb6b1 100644
--- a/OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs
+++ b/OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs
@@ -498,6 +498,28 @@ namespace OpenSim.Region.Physics.PhysXPlugin
        public override bool PIDHoverActive { set { return; } }
        public override PIDHoverType PIDHoverType { set { return; } }
        public override float PIDHoverTau { set { return; } }
+        
+        public override Quaternion APIDTarget
+        {
+            set { return; }
+        }
+        public override bool APIDActive
+        {
+            set { return; }
+        }
+        public override float APIDStrength
+        {
+            set { return; }
+        }
+        public override float APIDDamping
+        {
+            set { return; }
+        }
        public override void SubscribeEvents(int ms)
        {
@@ -780,6 +802,28 @@ namespace OpenSim.Region.Physics.PhysXPlugin
        public override bool PIDHoverActive { set { return; } }
        public override PIDHoverType PIDHoverType { set { return; } }
        public override float PIDHoverTau { set { return; } }
+        
+        public override Quaternion APIDTarget
+        {
+            set { return; }
+        }
+        public override bool APIDActive
+        {
+            set { return; }
+        }
+        public override float APIDStrength
+        {
+            set { return; }
+        }
+        public override float APIDDamping
+        {
+            set { return; }
+        }
+        
        public override void SubscribeEvents(int ms)
        {
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/CM_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/CM_Api.cs
new file mode 100644
index 0000000..4cc2f0a
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/CM_Api.cs
@@ -0,0 +1,430 @@
+using System;
+using System.Reflection;
+using System.Collections;
+using System.Collections.Generic;
+using System.Runtime.Remoting.Lifetime;
+using OpenMetaverse;
+using Nini.Config;
+using OpenSim;
+using OpenSim.Framework;
+using OpenSim.Region.CoreModules.World.Meta7Windlight;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api.Plugins;
+using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
+using OpenSim.Region.ScriptEngine.Interfaces;
+using OpenSim.Region.ScriptEngine.Shared.Api.Interfaces;
+using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using LSL_Key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_Rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_Vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+namespace OpenSim.Region.ScriptEngine.Shared.Api
+{
+    [Serializable]
+    public class CM_Api : MarshalByRefObject, ICM_Api, IScriptApi
+    {
+        internal IScriptEngine m_ScriptEngine;
+        internal SceneObjectPart m_host;
+        internal uint m_localID;
+        internal UUID m_itemID;
+        internal bool m_CMFunctionsEnabled = false;
+        internal IScriptModuleComms m_comms = null;
+        public void Initialize(IScriptEngine ScriptEngine, SceneObjectPart host, uint localID, UUID itemID)
+        {
+            m_ScriptEngine = ScriptEngine;
+            m_host = host;
+            m_localID = localID;
+            m_itemID = itemID;
+            if (m_ScriptEngine.Config.GetBoolean("AllowCareminsterFunctions", false))
+                m_CMFunctionsEnabled = true;
+            m_comms = m_ScriptEngine.World.RequestModuleInterface<IScriptModuleComms>();
+            if (m_comms == null)
+                m_CMFunctionsEnabled = false;
+        }
+        public override Object InitializeLifetimeService()
+        {
+            ILease lease = (ILease)base.InitializeLifetimeService();
+            if (lease.CurrentState == LeaseState.Initial)
+            {
+                lease.InitialLeaseTime = TimeSpan.FromMinutes(0);
+                //                lease.RenewOnCallTime = TimeSpan.FromSeconds(10.0);
+                //                lease.SponsorshipTimeout = TimeSpan.FromMinutes(1.0);
+            }
+            return lease;
+        }
+        public Scene World
+        {
+            get { return m_ScriptEngine.World; }
+        }
+        //
+        //Dumps an error message on the debug console.
+        //
+        internal void CMShoutError(string message)
+        {
+            if (message.Length > 1023)
+                message = message.Substring(0, 1023);
+            World.SimChat(Utils.StringToBytes(message),
+                          ChatTypeEnum.Shout, ScriptBaseClass.DEBUG_CHANNEL, m_host.ParentGroup.RootPart.AbsolutePosition, m_host.Name, m_host.UUID, true);
+            IWorldComm wComm = m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
+            wComm.DeliverMessage(ChatTypeEnum.Shout, ScriptBaseClass.DEBUG_CHANNEL, m_host.Name, m_host.UUID, message);
+        }
+        /// <summary>
+        /// Get the current Windlight scene
+        /// </summary>
+        /// <returns>List of windlight parameters</returns>
+        public LSL_List cmGetWindlightScene(LSL_List rules)
+        {
+            if (!m_CMFunctionsEnabled)
+            {
+                CMShoutError("Careminster functions are not enabled.");
+                return new LSL_List();
+            }
+            m_host.AddScriptLPS(1);
+            RegionMeta7WindlightData wl = m_host.ParentGroup.Scene.RegionInfo.WindlightSettings;
+            LSL_List values = new LSL_List();
+            int idx = 0;
+            while (idx < rules.Length)
+            {
+                uint rule = (uint)rules.GetLSLIntegerItem(idx);
+                LSL_List toadd = new LSL_List();
+                switch (rule)
+                {
+                    case (int)ScriptBaseClass.WL_AMBIENT:
+                        toadd.Add(new LSL_Rotation(wl.ambient.X, wl.ambient.Y, wl.ambient.Z, wl.ambient.W));
+                        break;
+                    case (int)ScriptBaseClass.WL_BIG_WAVE_DIRECTION:
+                        toadd.Add(new LSL_Vector(wl.bigWaveDirection.X, wl.bigWaveDirection.Y, 0.0f));
+                        break;
+                    case (int)ScriptBaseClass.WL_BLUE_DENSITY:
+                        toadd.Add(new LSL_Rotation(wl.blueDensity.X, wl.blueDensity.Y, wl.blueDensity.Z, wl.blueDensity.W));
+                        break;
+                    case (int)ScriptBaseClass.WL_BLUR_MULTIPLIER:
+                        toadd.Add(new LSL_Float(wl.blurMultiplier));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_COLOR:
+                        toadd.Add(new LSL_Rotation(wl.cloudColor.X, wl.cloudColor.Y, wl.cloudColor.Z, wl.cloudColor.W));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_COVERAGE:
+                        toadd.Add(new LSL_Float(wl.cloudCoverage));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_DETAIL_XY_DENSITY:
+                        toadd.Add(new LSL_Vector(wl.cloudDetailXYDensity.X, wl.cloudDetailXYDensity.Y, wl.cloudDetailXYDensity.Z));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_SCALE:
+                        toadd.Add(new LSL_Float(wl.cloudScale));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_SCROLL_X:
+                        toadd.Add(new LSL_Float(wl.cloudScrollX));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_SCROLL_X_LOCK:
+                        toadd.Add(new LSL_Integer(wl.cloudScrollXLock ? 1 : 0));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_SCROLL_Y:
+                        toadd.Add(new LSL_Float(wl.cloudScrollY));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_SCROLL_Y_LOCK:
+                        toadd.Add(new LSL_Integer(wl.cloudScrollYLock ? 1 : 0));
+                        break;
+                    case (int)ScriptBaseClass.WL_CLOUD_XY_DENSITY:
+                        toadd.Add(new LSL_Vector(wl.cloudXYDensity.X, wl.cloudXYDensity.Y, wl.cloudXYDensity.Z));
+                        break;
+                    case (int)ScriptBaseClass.WL_DENSITY_MULTIPLIER:
+                        toadd.Add(new LSL_Float(wl.densityMultiplier));
+                        break;
+                    case (int)ScriptBaseClass.WL_DISTANCE_MULTIPLIER:
+                        toadd.Add(new LSL_Float(wl.distanceMultiplier));
+                        break;
+                    case (int)ScriptBaseClass.WL_DRAW_CLASSIC_CLOUDS:
+                        toadd.Add(new LSL_Integer(wl.drawClassicClouds ? 1 : 0));
+                        break;
+                    case (int)ScriptBaseClass.WL_EAST_ANGLE:
+                        toadd.Add(new LSL_Float(wl.eastAngle));
+                        break;
+                    case (int)ScriptBaseClass.WL_FRESNEL_OFFSET:
+                        toadd.Add(new LSL_Float(wl.fresnelOffset));
+                        break;
+                    case (int)ScriptBaseClass.WL_FRESNEL_SCALE:
+                        toadd.Add(new LSL_Float(wl.fresnelScale));
+                        break;
+                    case (int)ScriptBaseClass.WL_HAZE_DENSITY:
+                        toadd.Add(new LSL_Float(wl.hazeDensity));
+                        break;
+                    case (int)ScriptBaseClass.WL_HAZE_HORIZON:
+                        toadd.Add(new LSL_Float(wl.hazeHorizon));
+                        break;
+                    case (int)ScriptBaseClass.WL_HORIZON:
+                        toadd.Add(new LSL_Rotation(wl.horizon.X, wl.horizon.Y, wl.horizon.Z, wl.horizon.W));
+                        break;
+                    case (int)ScriptBaseClass.WL_LITTLE_WAVE_DIRECTION:
+                        toadd.Add(new LSL_Vector(wl.littleWaveDirection.X, wl.littleWaveDirection.Y, 0.0f));
+                        break;
+                    case (int)ScriptBaseClass.WL_MAX_ALTITUDE:
+                        toadd.Add(new LSL_Integer(wl.maxAltitude));
+                        break;
+                    case (int)ScriptBaseClass.WL_NORMAL_MAP_TEXTURE:
+                        toadd.Add(new LSL_Key(wl.normalMapTexture.ToString()));
+                        break;
+                    case (int)ScriptBaseClass.WL_REFLECTION_WAVELET_SCALE:
+                        toadd.Add(new LSL_Vector(wl.reflectionWaveletScale.X, wl.reflectionWaveletScale.Y, wl.reflectionWaveletScale.Z));
+                        break;
+                    case (int)ScriptBaseClass.WL_REFRACT_SCALE_ABOVE:
+                        toadd.Add(new LSL_Float(wl.refractScaleAbove));
+                        break;
+                    case (int)ScriptBaseClass.WL_REFRACT_SCALE_BELOW:
+                        toadd.Add(new LSL_Float(wl.refractScaleBelow));
+                        break;
+                    case (int)ScriptBaseClass.WL_SCENE_GAMMA:
+                        toadd.Add(new LSL_Float(wl.sceneGamma));
+                        break;
+                    case (int)ScriptBaseClass.WL_STAR_BRIGHTNESS:
+                        toadd.Add(new LSL_Float(wl.starBrightness));
+                        break;
+                    case (int)ScriptBaseClass.WL_SUN_GLOW_FOCUS:
+                        toadd.Add(new LSL_Float(wl.sunGlowFocus));
+                        break;
+                    case (int)ScriptBaseClass.WL_SUN_GLOW_SIZE:
+                        toadd.Add(new LSL_Float(wl.sunGlowSize));
+                        break;
+                    case (int)ScriptBaseClass.WL_SUN_MOON_COLOR:
+                        toadd.Add(new LSL_Rotation(wl.sunMoonColor.X, wl.sunMoonColor.Y, wl.sunMoonColor.Z, wl.sunMoonColor.W));
+                        break;
+                    case (int)ScriptBaseClass.WL_UNDERWATER_FOG_MODIFIER:
+                        toadd.Add(new LSL_Float(wl.underwaterFogModifier));
+                        break;
+                    case (int)ScriptBaseClass.WL_WATER_COLOR:
+                        toadd.Add(new LSL_Vector(wl.waterColor.X, wl.waterColor.Y, wl.waterColor.Z));
+                        break;
+                    case (int)ScriptBaseClass.WL_WATER_FOG_DENSITY_EXPONENT:
+                        toadd.Add(new LSL_Float(wl.waterFogDensityExponent));
+                        break;
+                }
+                if (toadd.Length > 0)
+                {
+                    values.Add(rule);
+                    values.Add(toadd.Data[0]);
+                }
+                idx++;
+            }
+            return values;
+        }
+        /// <summary>
+        /// Set the current Windlight scene
+        /// </summary>
+        /// <param name="rules"></param>
+        /// <returns>success: true or false</returns>
+        public int cmSetWindlightScene(LSL_List rules)
+        {
+            if (!m_CMFunctionsEnabled)
+            {
+                CMShoutError("Careminster functions are not enabled.");
+                return 0;
+            }
+            int success = 0;
+            m_host.AddScriptLPS(1);
+            if (Meta7WindlightModule.EnableWindlight)
+            {
+                RegionMeta7WindlightData wl = m_host.ParentGroup.Scene.RegionInfo.WindlightSettings;
+                LSL_List values = new LSL_List();
+                int idx = 0;
+                success = 1;
+                while (idx < rules.Length)
+                {
+                    uint rule = (uint)rules.GetLSLIntegerItem(idx);
+                    LSL_Types.Quaternion iQ;
+                    LSL_Types.Vector3 iV;
+                    switch (rule)
+                    {
+                        case (int)ScriptBaseClass.WL_AMBIENT:
+                            idx++;
+                            iQ = rules.GetQuaternionItem(idx);
+                            wl.ambient = new Vector4((float)iQ.x, (float)iQ.y, (float)iQ.z, (float)iQ.s);
+                            break;
+                        case (int)ScriptBaseClass.WL_BIG_WAVE_DIRECTION:
+                            idx++;
+                            iV = rules.GetVector3Item(idx);
+                            wl.bigWaveDirection = new Vector2((float)iV.x, (float)iV.y);
+                            break;
+                        case (int)ScriptBaseClass.WL_BLUE_DENSITY:
+                            idx++;
+                            iQ = rules.GetQuaternionItem(idx);
+                            wl.blueDensity = new Vector4((float)iQ.x, (float)iQ.y, (float)iQ.z, (float)iQ.s);
+                            break;
+                        case (int)ScriptBaseClass.WL_BLUR_MULTIPLIER:
+                            idx++;
+                            wl.blurMultiplier = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_COLOR:
+                            idx++;
+                            iQ = rules.GetQuaternionItem(idx);
+                            wl.cloudColor = new Vector4((float)iQ.x, (float)iQ.y, (float)iQ.z, (float)iQ.s);
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_COVERAGE:
+                            idx++;
+                            wl.cloudCoverage = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_DETAIL_XY_DENSITY:
+                            idx++;
+                            iV = rules.GetVector3Item(idx);
+                            wl.cloudDetailXYDensity = new Vector3((float)iV.x, (float)iV.y, (float)iV.z);
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_SCALE:
+                            idx++;
+                            wl.cloudScale = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_SCROLL_X:
+                            idx++;
+                            wl.cloudScrollX = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_SCROLL_X_LOCK:
+                            idx++;
+                            wl.cloudScrollXLock = rules.GetLSLIntegerItem(idx).value == 1 ? true : false;
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_SCROLL_Y:
+                            idx++;
+                            wl.cloudScrollY = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_SCROLL_Y_LOCK:
+                            idx++;
+                            wl.cloudScrollYLock = rules.GetLSLIntegerItem(idx).value == 1 ? true : false;
+                            break;
+                        case (int)ScriptBaseClass.WL_CLOUD_XY_DENSITY:
+                            idx++;
+                            iV = rules.GetVector3Item(idx);
+                            wl.cloudDetailXYDensity = new Vector3((float)iV.x, (float)iV.y, (float)iV.z);
+                            break;
+                        case (int)ScriptBaseClass.WL_DENSITY_MULTIPLIER:
+                            idx++;
+                            wl.densityMultiplier = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_DISTANCE_MULTIPLIER:
+                            idx++;
+                            wl.distanceMultiplier = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_DRAW_CLASSIC_CLOUDS:
+                            idx++;
+                            wl.drawClassicClouds = rules.GetLSLIntegerItem(idx).value == 1 ? true : false;
+                            break;
+                        case (int)ScriptBaseClass.WL_EAST_ANGLE:
+                            idx++;
+                            wl.eastAngle = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_FRESNEL_OFFSET:
+                            idx++;
+                            wl.fresnelOffset = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_FRESNEL_SCALE:
+                            idx++;
+                            wl.fresnelScale = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_HAZE_DENSITY:
+                            idx++;
+                            wl.hazeDensity = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_HAZE_HORIZON:
+                            idx++;
+                            wl.hazeHorizon = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_HORIZON:
+                            idx++;
+                            iQ = rules.GetQuaternionItem(idx);
+                            wl.horizon = new Vector4((float)iQ.x, (float)iQ.y, (float)iQ.z, (float)iQ.s);
+                            break;
+                        case (int)ScriptBaseClass.WL_LITTLE_WAVE_DIRECTION:
+                            idx++;
+                            iV = rules.GetVector3Item(idx);
+                            wl.littleWaveDirection = new Vector2((float)iV.x, (float)iV.y);
+                            break;
+                        case (int)ScriptBaseClass.WL_MAX_ALTITUDE:
+                            idx++;
+                            wl.maxAltitude = (ushort)rules.GetLSLIntegerItem(idx).value;
+                            break;
+                        case (int)ScriptBaseClass.WL_NORMAL_MAP_TEXTURE:
+                            idx++;
+                            wl.normalMapTexture = new UUID(rules.GetLSLStringItem(idx).m_string);
+                            break;
+                        case (int)ScriptBaseClass.WL_REFLECTION_WAVELET_SCALE:
+                            idx++;
+                            iV = rules.GetVector3Item(idx);
+                            wl.reflectionWaveletScale = new Vector3((float)iV.x, (float)iV.y, (float)iV.z);
+                            break;
+                        case (int)ScriptBaseClass.WL_REFRACT_SCALE_ABOVE:
+                            idx++;
+                            wl.refractScaleAbove = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_REFRACT_SCALE_BELOW:
+                            idx++;
+                            wl.refractScaleBelow = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_SCENE_GAMMA:
+                            idx++;
+                            wl.sceneGamma = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_STAR_BRIGHTNESS:
+                            idx++;
+                            wl.starBrightness = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_SUN_GLOW_FOCUS:
+                            idx++;
+                            wl.sunGlowFocus = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_SUN_GLOW_SIZE:
+                            idx++;
+                            wl.sunGlowSize = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_SUN_MOON_COLOR:
+                            idx++;
+                            iQ = rules.GetQuaternionItem(idx);
+                            wl.sunMoonColor = new Vector4((float)iQ.x, (float)iQ.y, (float)iQ.z, (float)iQ.s);
+                            break;
+                        case (int)ScriptBaseClass.WL_UNDERWATER_FOG_MODIFIER:
+                            idx++;
+                            wl.underwaterFogModifier = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        case (int)ScriptBaseClass.WL_WATER_COLOR:
+                            idx++;
+                            iV = rules.GetVector3Item(idx);
+                            wl.waterColor = new Vector3((float)iV.x, (float)iV.y, (float)iV.z);
+                            break;
+                        case (int)ScriptBaseClass.WL_WATER_FOG_DENSITY_EXPONENT:
+                            idx++;
+                            wl.waterFogDensityExponent = (float)rules.GetLSLFloatItem(idx);
+                            break;
+                        default:
+                            success = 0;
+                            break;
+                    }
+                    idx++;
+                }
+                m_host.ParentGroup.Scene.StoreWindlightProfile(wl);
+            }
+            return success;
+        }
+        
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 9a905f1..e694f15 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -28,6 +28,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Runtime.Remoting.Lifetime;
 using System.Text;
 using System.Threading;
@@ -151,6 +152,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            get { return m_ScriptEngine.World; }
        }
+        [DebuggerNonUserCode]
        public void state(string newState)
        {
            m_ScriptEngine.SetState(m_itemID, newState);
@@ -160,6 +162,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        /// Reset the named script. The script must be present
        /// in the same prim.
        /// </summary>
+        [DebuggerNonUserCode]
        public void llResetScript()
        {
            m_host.AddScriptLPS(1);
@@ -272,40 +275,48 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        protected UUID InventorySelf()
        {
            UUID invItemID = new UUID();
+            bool unlock = false;
-            lock (m_host.TaskInventory)
+            if (!m_host.TaskInventory.IsReadLockedByMe())
+            {
+                m_host.TaskInventory.LockItemsForRead(true);
+                unlock = true;
+            }
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Type == 10 && inv.Value.ItemID == m_itemID)
                {
-                    if (inv.Value.Type == 10 && inv.Value.ItemID == m_itemID)
+                    invItemID = inv.Key;
-                    {
+                    break;
-                        invItemID = inv.Key;
-                        break;
-                    }
                }
            }
+            if (unlock)
+            {
+                m_host.TaskInventory.LockItemsForRead(false);
+            }
            return invItemID;
        }
        protected UUID InventoryKey(string name, int type)
        {
            m_host.AddScriptLPS(1);
+            m_host.TaskInventory.LockItemsForRead(true);
-            lock (m_host.TaskInventory)
+            
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                {
-                    if (inv.Value.Name == name)
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    
+                    if (inv.Value.Type != type)
                    {
-                        if (inv.Value.Type != type)
+                        return UUID.Zero;
-                            return UUID.Zero;
-                        return inv.Value.AssetID;
                    }
+                    return inv.Value.AssetID;
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return UUID.Zero;
        }
@@ -313,17 +324,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                {
-                    if (inv.Value.Name == name)
+                    m_host.TaskInventory.LockItemsForRead(false);
-                    {
+                    return inv.Value.AssetID;
-                        return inv.Value.AssetID;
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return UUID.Zero;
        }
@@ -2555,12 +2570,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            m_host.AddScriptLPS(1);
+            m_host.TaskInventory.LockItemsForRead(true);
            TaskInventoryItem item = m_host.TaskInventory[invItemID];
+            m_host.TaskInventory.LockItemsForRead(false);
-            lock (m_host.TaskInventory)
-            {
-                item = m_host.TaskInventory[invItemID];
-            }
            if (item.PermsGranter == UUID.Zero)
                return 0;
@@ -2635,6 +2647,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            if (dist > m_ScriptDistanceFactor * 10.0f)
                return;
+            //Clone is thread-safe
            TaskInventoryDictionary partInventory = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in partInventory)
@@ -2720,11 +2733,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            // Orient the object to the angle calculated
            llSetRot(rot);
        }
+        
+        public void llRotLookAt(LSL_Rotation target, double strength, double damping)
+        {
+            m_host.AddScriptLPS(1);
+//            NotImplemented("llRotLookAt");
+            m_host.RotLookAt(Rot2Quaternion(target), (float)strength, (float)damping);
+            
+        }
        public void llStopLookAt()
        {
            m_host.AddScriptLPS(1);
-            NotImplemented("llStopLookAt");
+//            NotImplemented("llStopLookAt");
+            m_host.StopLookAt();
        }
        public void llSetTimerEvent(double sec)
@@ -2758,13 +2781,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            TaskInventoryItem item;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
            {
-                if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
+                m_host.TaskInventory.LockItemsForRead(false);
-                    return;
+                return;
-                else
+            }
-                    item = m_host.TaskInventory[InventorySelf()];
+            else
+            {
+                item = m_host.TaskInventory[InventorySelf()];
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            if (item.PermsGranter != UUID.Zero)
            {
@@ -2786,13 +2813,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            TaskInventoryItem item;
+            m_host.TaskInventory.LockItemsForRead(true);
            lock (m_host.TaskInventory)
            {
+                
                if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
+                {
+                    m_host.TaskInventory.LockItemsForRead(false);
                    return;
+                }
                else
+                {
                    item = m_host.TaskInventory[InventorySelf()];
+                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            m_host.AddScriptLPS(1);
@@ -2829,14 +2864,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            TaskInventoryItem item;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
            {
-                if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
+                m_host.TaskInventory.LockItemsForRead(false);
-                    return;
+                return;
-                else
+            }
-                    item = m_host.TaskInventory[InventorySelf()];
+            else
+            {
+                item = m_host.TaskInventory[InventorySelf()];
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            if (item.PermsGranter != m_host.OwnerID)
                return;
@@ -2861,13 +2902,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            TaskInventoryItem item;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
            {
-                if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
+                m_host.TaskInventory.LockItemsForRead(false);
-                    return;
+                return;
-                else
-                    item = m_host.TaskInventory[InventorySelf()];
            }
+            else
+            {
+                item = m_host.TaskInventory[InventorySelf()];
+            }
+            m_host.TaskInventory.LockItemsForRead(false);
            if (item.PermsGranter != m_host.OwnerID)
                return;
@@ -2903,8 +2950,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            return m_host.OwnerID.ToString();
        }
+        [DebuggerNonUserCode]
        public void llInstantMessage(string user, string message)
        {
+            UUID result;
+            if (!UUID.TryParse(user, out result))
+            {
+                throw new Exception(String.Format("An invalid key of '{0} was passed to llInstantMessage", user));
+                return;
+            }
+            
            m_host.AddScriptLPS(1);
            // We may be able to use ClientView.SendInstantMessage here, but we need a client instance.
@@ -2919,7 +2975,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            UUID friendTransactionID = UUID.Random();
            //m_pendingFriendRequests.Add(friendTransactionID, fromAgentID);
+            
            GridInstantMessage msg = new GridInstantMessage();
            msg.fromAgentID = new Guid(m_host.UUID.ToString()); // fromAgentID.Guid;
            msg.toAgentID = new Guid(user); // toAgentID.Guid;
@@ -3068,12 +3124,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            m_host.AddScriptLPS(1);
        }
-        public void llRotLookAt(LSL_Rotation target, double strength, double damping)
-        {
-            m_host.AddScriptLPS(1);
-            NotImplemented("llRotLookAt");
-        }
        public LSL_Integer llStringLength(string str)
        {
            m_host.AddScriptLPS(1);
@@ -3097,14 +3147,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            TaskInventoryItem item;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
            {
-                if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
+                m_host.TaskInventory.LockItemsForRead(false);
-                    return;
+                return;
-                else
-                    item = m_host.TaskInventory[InventorySelf()];
            }
+            else
+            {
+                item = m_host.TaskInventory[InventorySelf()];
+            }
+            m_host.TaskInventory.LockItemsForRead(false);
            if (item.PermsGranter == UUID.Zero)
                return;
@@ -3134,13 +3187,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            TaskInventoryItem item;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
            {
-                if (!m_host.TaskInventory.ContainsKey(InventorySelf()))
+                m_host.TaskInventory.LockItemsForRead(false);
-                    return;
+                return;
-                else
-                    item = m_host.TaskInventory[InventorySelf()];
            }
+            else
+            {
+                item = m_host.TaskInventory[InventorySelf()];
+            }
+            m_host.TaskInventory.LockItemsForRead(false);
+            
            if (item.PermsGranter == UUID.Zero)
                return;
@@ -3213,10 +3271,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            TaskInventoryItem item;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            if (!m_host.TaskInventory.ContainsKey(invItemID))
+            {
+                m_host.TaskInventory.LockItemsForRead(false);
+                return;
+            }
+            else
            {
                item = m_host.TaskInventory[invItemID];
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            if (agentID == UUID.Zero || perm == 0) // Releasing permissions
            {
@@ -3248,11 +3314,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                if ((perm & (~implicitPerms)) == 0) // Requested only implicit perms
                {
-                    lock (m_host.TaskInventory)
+                    m_host.TaskInventory.LockItemsForWrite(true);
-                    {
+                    m_host.TaskInventory[invItemID].PermsGranter = agentID;
-                        m_host.TaskInventory[invItemID].PermsGranter = agentID;
+                    m_host.TaskInventory[invItemID].PermsMask = perm;
-                        m_host.TaskInventory[invItemID].PermsMask = perm;
+                    m_host.TaskInventory.LockItemsForWrite(false);
-                    }
                    m_ScriptEngine.PostScriptEvent(m_itemID, new EventParams(
                            "run_time_permissions", new Object[] {
@@ -3272,11 +3337,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                if ((perm & (~implicitPerms)) == 0) // Requested only implicit perms
                {
-                    lock (m_host.TaskInventory)
+                    m_host.TaskInventory.LockItemsForWrite(true);
-                    {
+                    m_host.TaskInventory[invItemID].PermsGranter = agentID;
-                        m_host.TaskInventory[invItemID].PermsGranter = agentID;
+                    m_host.TaskInventory[invItemID].PermsMask = perm;
-                        m_host.TaskInventory[invItemID].PermsMask = perm;
+                    m_host.TaskInventory.LockItemsForWrite(false);
-                    }
                    m_ScriptEngine.PostScriptEvent(m_itemID, new EventParams(
                            "run_time_permissions", new Object[] {
@@ -3297,11 +3361,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                if (!m_waitingForScriptAnswer)
                {
-                    lock (m_host.TaskInventory)
+                    m_host.TaskInventory.LockItemsForWrite(true);
-                    {
+                    m_host.TaskInventory[invItemID].PermsGranter = agentID;
-                        m_host.TaskInventory[invItemID].PermsGranter = agentID;
+                    m_host.TaskInventory[invItemID].PermsMask = 0;
-                        m_host.TaskInventory[invItemID].PermsMask = 0;
+                    m_host.TaskInventory.LockItemsForWrite(false);
-                    }
                    presence.ControllingClient.OnScriptAnswer += handleScriptAnswer;
                    m_waitingForScriptAnswer=true;
@@ -3336,10 +3399,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            if ((answer & ScriptBaseClass.PERMISSION_TAKE_CONTROLS) == 0)
                llReleaseControls();
-            lock (m_host.TaskInventory)
+            
-            {
+            m_host.TaskInventory.LockItemsForWrite(true);
-                m_host.TaskInventory[invItemID].PermsMask = answer;
+            m_host.TaskInventory[invItemID].PermsMask = answer;
-            }
+            m_host.TaskInventory.LockItemsForWrite(false);
+            
            m_ScriptEngine.PostScriptEvent(m_itemID, new EventParams(
                    "run_time_permissions", new Object[] {
@@ -3351,16 +3415,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            
+            foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
            {
-                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                if (item.Type == 10 && item.ItemID == m_itemID)
                {
-                    if (item.Type == 10 && item.ItemID == m_itemID)
+                    m_host.TaskInventory.LockItemsForRead(false);
-                    {
+                    return item.PermsGranter.ToString();
-                        return item.PermsGranter.ToString();
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return UUID.Zero.ToString();
        }
@@ -3369,19 +3434,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
            {
-                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                if (item.Type == 10 && item.ItemID == m_itemID)
                {
-                    if (item.Type == 10 && item.ItemID == m_itemID)
+                    int perms = item.PermsMask;
-                    {
+                    if (m_automaticLinkPermission)
-                        int perms = item.PermsMask;
+                        perms |= ScriptBaseClass.PERMISSION_CHANGE_LINKS;
-                        if (m_automaticLinkPermission)
+                    m_host.TaskInventory.LockItemsForRead(false);
-                            perms |= ScriptBaseClass.PERMISSION_CHANGE_LINKS;
+                    return perms;
-                        return perms;
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return 0;
        }
@@ -3414,11 +3480,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            UUID invItemID = InventorySelf();
            TaskInventoryItem item;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
-            {
+            item = m_host.TaskInventory[invItemID];
-                item = m_host.TaskInventory[invItemID];
+            m_host.TaskInventory.LockItemsForRead(false);
-            }
+             
            if ((item.PermsMask & ScriptBaseClass.PERMISSION_CHANGE_LINKS) == 0
                && !m_automaticLinkPermission)
            {
@@ -3471,16 +3536,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            m_host.AddScriptLPS(1);
            UUID invItemID = InventorySelf();
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
-            {
                if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_CHANGE_LINKS) == 0
                    && !m_automaticLinkPermission)
                {
                    ShoutError("Script trying to link but PERMISSION_CHANGE_LINKS permission not set!");
+                    m_host.TaskInventory.LockItemsForRead(false);
                    return;
                }
-            }
+            m_host.TaskInventory.LockItemsForRead(false);
+            
            if (linknum < ScriptBaseClass.LINK_THIS)
                return;
@@ -3657,17 +3722,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            m_host.AddScriptLPS(1);
            int count = 0;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Type == type || type == -1)
                {
-                    if (inv.Value.Type == type || type == -1)
+                    count = count + 1;
-                    {
-                        count = count + 1;
-                    }
                }
            }
+            
+            m_host.TaskInventory.LockItemsForRead(false);
            return count;
        }
@@ -3676,16 +3740,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            m_host.AddScriptLPS(1);
            ArrayList keys = new ArrayList();
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Type == type || type == -1)
                {
-                    if (inv.Value.Type == type || type == -1)
+                    keys.Add(inv.Value.Name);
-                    {
-                        keys.Add(inv.Value.Name);
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            if (keys.Count == 0)
            {
@@ -3722,20 +3785,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            }
            // move the first object found with this inventory name
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == inventory)
                {
-                    if (inv.Value.Name == inventory)
+                    found = true;
-                    {
+                    objId = inv.Key;
-                        found = true;
+                    assetType = inv.Value.Type;
-                        objId = inv.Key;
+                    objName = inv.Value.Name;
-                        assetType = inv.Value.Type;
+                    break;
-                        objName = inv.Value.Name;
-                        break;
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            if (!found)
            {
@@ -3780,24 +3842,26 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            ScriptSleep(3000);
        }
+        [DebuggerNonUserCode]
        public void llRemoveInventory(string name)
        {
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
            {
-                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                if (item.Name == name)
                {
-                    if (item.Name == name)
+                    if (item.ItemID == m_itemID)
-                    {
+                        throw new ScriptDeleteException();
-                        if (item.ItemID == m_itemID)
+                    else
-                            throw new ScriptDeleteException();
+                        m_host.Inventory.RemoveInventoryItem(item.ItemID);
-                        else
-                            m_host.Inventory.RemoveInventoryItem(item.ItemID);
+                    m_host.TaskInventory.LockItemsForRead(false);
-                        return;
+                    return;
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
        }
        public void llSetText(string text, LSL_Vector color, double alpha)
@@ -3886,6 +3950,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
+            //Clone is thread safe
            TaskInventoryDictionary itemDictionary = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
            foreach (TaskInventoryItem item in itemDictionary.Values)
@@ -3976,17 +4041,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            UUID soundId = UUID.Zero;
            if (!UUID.TryParse(impact_sound, out soundId))
            {
-                lock (m_host.TaskInventory)
+                m_host.TaskInventory.LockItemsForRead(true);
+                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
                {
-                    foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                    if (item.Type == (int)AssetType.Sound && item.Name == impact_sound)
                    {
-                        if (item.Type == (int)AssetType.Sound && item.Name == impact_sound)
+                        soundId = item.AssetID;
-                        {
+                        break;
-                            soundId = item.AssetID;
-                            break;
-                        }
                    }
                }
+                m_host.TaskInventory.LockItemsForRead(false);
            }
            m_host.CollisionSound = soundId;
            m_host.CollisionSoundVolume = (float)impact_volume;
@@ -4032,6 +4096,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            UUID partItemID;
            foreach (SceneObjectPart part in parts)
            {
+                //Clone is thread safe
                TaskInventoryDictionary itemsDictionary = (TaskInventoryDictionary)part.TaskInventory.Clone();
                foreach (TaskInventoryItem item in itemsDictionary.Values)
@@ -4239,17 +4304,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
            {
-                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                if (item.Type == 10 && item.ItemID == m_itemID)
                {
-                    if (item.Type == 10 && item.ItemID == m_itemID)
+                    result =  item.Name!=null?item.Name:String.Empty;
-                    {
+                    break;
-                        result =  item.Name!=null?item.Name:String.Empty;
-                        break;
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return result;
        }
@@ -4507,23 +4571,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                {
-                    if (inv.Value.Name == name)
+                    if ((inv.Value.CurrentPermissions & (uint)(PermissionMask.Copy | PermissionMask.Transfer | PermissionMask.Modify)) == (uint)(PermissionMask.Copy | PermissionMask.Transfer | PermissionMask.Modify))
                    {
-                        if ((inv.Value.CurrentPermissions & (uint)(PermissionMask.Copy | PermissionMask.Transfer | PermissionMask.Modify)) == (uint)(PermissionMask.Copy | PermissionMask.Transfer | PermissionMask.Modify))
+                        m_host.TaskInventory.LockItemsForRead(false);
-                        {
+                        return inv.Value.AssetID.ToString();
-                            return inv.Value.AssetID.ToString();
+                    }
-                        }
+                    else
-                        else
+                    {
-                        {
+                        m_host.TaskInventory.LockItemsForRead(false);
-                            return UUID.Zero.ToString();
+                        return UUID.Zero.ToString();
-                        }
                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return UUID.Zero.ToString();
        }
@@ -6019,14 +6084,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        protected UUID GetTaskInventoryItem(string name)
        {
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                {
-                    if (inv.Value.Name == name)
+                    m_host.TaskInventory.LockItemsForRead(false);
-                        return inv.Key;
+                    return inv.Key;
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return UUID.Zero;
        }
@@ -6337,22 +6404,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            }
            // copy the first script found with this inventory name
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                {
-                    if (inv.Value.Name == name)
+                    // make sure the object is a script
+                    if (10 == inv.Value.Type)
                    {
-                        // make sure the object is a script
+                        found = true;
-                        if (10 == inv.Value.Type)
+                        srcId = inv.Key;
-                        {
+                        break;
-                            found = true;
-                            srcId = inv.Key;
-                            break;
-                        }
                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            if (!found)
            {
@@ -8155,28 +8221,28 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == item)
                {
-                    if (inv.Value.Name == item)
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    switch (mask)
                    {
-                        switch (mask)
+                        case 0:
-                        {
+                            return (int)inv.Value.BasePermissions;
-                            case 0:
+                        case 1:
-                                return (int)inv.Value.BasePermissions;
+                            return (int)inv.Value.CurrentPermissions;
-                            case 1:
+                        case 2:
-                                return (int)inv.Value.CurrentPermissions;
+                            return (int)inv.Value.GroupPermissions;
-                            case 2:
+                        case 3:
-                                return (int)inv.Value.GroupPermissions;
+                            return (int)inv.Value.EveryonePermissions;
-                            case 3:
+                        case 4:
-                                return (int)inv.Value.EveryonePermissions;
+                            return (int)inv.Value.NextPermissions;
-                            case 4:
-                                return (int)inv.Value.NextPermissions;
-                        }
                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return -1;
        }
@@ -8191,16 +8257,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == item)
                {
-                    if (inv.Value.Name == item)
+                    m_host.TaskInventory.LockItemsForRead(false);
-                    {
+                    return inv.Value.CreatorID.ToString();
-                        return inv.Value.CreatorID.ToString();
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            llSay(0, "No item name '" + item + "'");
@@ -8724,16 +8790,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
            {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                {
-                    if (inv.Value.Name == name)
+                    m_host.TaskInventory.LockItemsForRead(false);
-                    {
+                    return inv.Value.Type;
-                        return inv.Value.Type;
-                    }
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return -1;
        }
@@ -8764,17 +8830,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            if (invItemID == UUID.Zero)
                return new LSL_Vector();
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            if (m_host.TaskInventory[invItemID].PermsGranter == UUID.Zero)
            {
-                if (m_host.TaskInventory[invItemID].PermsGranter == UUID.Zero)
+                m_host.TaskInventory.LockItemsForRead(false);
-                   return new LSL_Vector();
+                return new LSL_Vector();
+            }
-                if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_TRACK_CAMERA) == 0)
+            if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_TRACK_CAMERA) == 0)
-                {
+            {
-                    ShoutError("No permissions to track the camera");
+                ShoutError("No permissions to track the camera");
-                    return new LSL_Vector();
+                m_host.TaskInventory.LockItemsForRead(false);
-                }
+                return new LSL_Vector();
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            ScenePresence presence = World.GetScenePresence(m_host.OwnerID);
            if (presence != null)
@@ -8792,17 +8861,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            if (invItemID == UUID.Zero)
                return new LSL_Rotation();
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            if (m_host.TaskInventory[invItemID].PermsGranter == UUID.Zero)
            {
-                if (m_host.TaskInventory[invItemID].PermsGranter == UUID.Zero)
+                m_host.TaskInventory.LockItemsForRead(false);
-                   return new LSL_Rotation();
+                return new LSL_Rotation();
-                if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_TRACK_CAMERA) == 0)
-                {
-                    ShoutError("No permissions to track the camera");
-                    return new LSL_Rotation();
-                }
            }
+            if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_TRACK_CAMERA) == 0)
+            {
+                ShoutError("No permissions to track the camera");
+                m_host.TaskInventory.LockItemsForRead(false);
+                return new LSL_Rotation();
+            }
+            m_host.TaskInventory.LockItemsForRead(false);
            ScenePresence presence = World.GetScenePresence(m_host.OwnerID);
            if (presence != null)
@@ -8952,14 +9023,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            if (objectID == UUID.Zero) return;
            UUID agentID;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
-            {
+            // we need the permission first, to know which avatar we want to set the camera for
-                // we need the permission first, to know which avatar we want to set the camera for
+            agentID = m_host.TaskInventory[invItemID].PermsGranter;
-                agentID = m_host.TaskInventory[invItemID].PermsGranter;
-                if (agentID == UUID.Zero) return;
+            if (agentID == UUID.Zero)
-                if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_CONTROL_CAMERA) == 0) return;
+            {
+                m_host.TaskInventory.LockItemsForRead(false);
+                return;
            }
+            if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_CONTROL_CAMERA) == 0)
+            {
+                m_host.TaskInventory.LockItemsForRead(false);
+                return;
+            }
+            m_host.TaskInventory.LockItemsForRead(false);
            ScenePresence presence = World.GetScenePresence(agentID);
@@ -9009,12 +9087,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            // we need the permission first, to know which avatar we want to clear the camera for
            UUID agentID;
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            agentID = m_host.TaskInventory[invItemID].PermsGranter;
+            if (agentID == UUID.Zero)
+            {
+                m_host.TaskInventory.LockItemsForRead(false);
+                return;
+            }
+            if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_CONTROL_CAMERA) == 0)
            {
-                agentID = m_host.TaskInventory[invItemID].PermsGranter;
+                m_host.TaskInventory.LockItemsForRead(false);
-                if (agentID == UUID.Zero) return;
+                return;
-                if ((m_host.TaskInventory[invItemID].PermsMask & ScriptBaseClass.PERMISSION_CONTROL_CAMERA) == 0) return;
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            ScenePresence presence = World.GetScenePresence(agentID);
@@ -9471,15 +9556,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        internal UUID ScriptByName(string name)
        {
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
            {
-                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                if (item.Type == 10 && item.Name == name)
                {
-                    if (item.Type == 10 && item.Name == name)
+                    m_host.TaskInventory.LockItemsForRead(false);
-                        return item.ItemID;
+                    return item.ItemID;
                }
            }
+            m_host.TaskInventory.LockItemsForRead(false);
            return UUID.Zero;
        }
@@ -9520,6 +9609,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
+            //Clone is thread safe
            TaskInventoryDictionary itemsDictionary = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
            UUID assetID = UUID.Zero;
@@ -9582,6 +9672,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
        {
            m_host.AddScriptLPS(1);
+            //Clone is thread safe
            TaskInventoryDictionary itemsDictionary = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
            UUID assetID = UUID.Zero;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 5501679..836f276 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -728,18 +728,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                if (target != null)
                {
                    UUID animID=UUID.Zero;
-                    lock (m_host.TaskInventory)
+                    m_host.TaskInventory.LockItemsForRead(true);
+                    foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
                    {
-                        foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                        if (inv.Value.Name == animation)
                        {
-                            if (inv.Value.Name == animation)
+                            if (inv.Value.Type == (int)AssetType.Animation)
-                            {
+                                animID = inv.Value.AssetID;
-                                if (inv.Value.Type == (int)AssetType.Animation)
+                            continue;
-                                    animID = inv.Value.AssetID;
-                                continue;
-                            }
                        }
                    }
+                    m_host.TaskInventory.LockItemsForRead(false);
                    if (animID == UUID.Zero)
                        target.Animator.AddAnimation(animation, m_host.UUID);
                    else
@@ -761,18 +760,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                if (target != null)
                {
                    UUID animID=UUID.Zero;
-                    lock (m_host.TaskInventory)
+                    m_host.TaskInventory.LockItemsForRead(true);
+                    foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
                    {
-                        foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                        if (inv.Value.Name == animation)
                        {
-                            if (inv.Value.Name == animation)
+                            if (inv.Value.Type == (int)AssetType.Animation)
-                            {
+                                animID = inv.Value.AssetID;
-                                if (inv.Value.Type == (int)AssetType.Animation)
+                            continue;
-                                    animID = inv.Value.AssetID;
-                                continue;
-                            }
                        }
                    }
+                    m_host.TaskInventory.LockItemsForRead(false);
                    
                    if (animID == UUID.Zero)
                        target.Animator.RemoveAnimation(animation);
@@ -1541,6 +1539,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            if (!UUID.TryParse(name, out assetID))
            {
+                m_host.TaskInventory.LockItemsForRead(true);
                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
                {
                    if (item.Type == 7 && item.Name == name)
@@ -1548,6 +1547,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                        assetID = item.AssetID;
                    }
                }
+                m_host.TaskInventory.LockItemsForRead(false);
            }
            if (assetID == UUID.Zero)
@@ -1594,6 +1594,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            if (!UUID.TryParse(name, out assetID))
            {
+                m_host.TaskInventory.LockItemsForRead(true);
                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
                {
                    if (item.Type == 7 && item.Name == name)
@@ -1601,6 +1602,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                        assetID = item.AssetID;
                    }
                }
+                m_host.TaskInventory.LockItemsForRead(false);
            }
            if (assetID == UUID.Zero)
@@ -1651,6 +1653,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
            if (!UUID.TryParse(name, out assetID))
            {
+                m_host.TaskInventory.LockItemsForRead(true);
                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
                {
                    if (item.Type == 7 && item.Name == name)
@@ -1658,6 +1661,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                        assetID = item.AssetID;
                    }
                }
+                m_host.TaskInventory.LockItemsForRead(false);
            }
            if (assetID == UUID.Zero)
@@ -1969,6 +1973,5 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                        }
                        return ret;
                }
    }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ICM_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ICM_Api.cs
new file mode 100644
index 0000000..9dd0b73
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ICM_Api.cs
@@ -0,0 +1,20 @@
+using System.Collections;
+using OpenSim.Region.ScriptEngine.Interfaces;
+using key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
+using vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
+namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
+{
+    public interface ICM_Api
+    {
+        // Windlight Functions
+        LSL_List cmGetWindlightScene(LSL_List rules);
+        int cmSetWindlightScene(LSL_List rules);
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
index 0b0dc00..c3bf7d2 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
@@ -80,7 +80,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
        // Avatar Info Commands
        string osGetAgentIP(string agent);
        LSL_List osGetAgents();
+        
        // Teleport commands
        void osTeleportAgent(string agent, string regionName, LSL_Types.Vector3 position, LSL_Types.Vector3 lookat);
        void osTeleportAgent(string agent, int regionX, int regionY, LSL_Types.Vector3 position, LSL_Types.Vector3 lookat);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Constants.cs
new file mode 100644
index 0000000..7b67fa3
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Constants.cs
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+using rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
+using LSLInteger = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
+{
+    public partial class ScriptBaseClass
+    {
+        // Constants for cmWindlight*
+        public const int WL_WATER_COLOR = 0;
+        public const int WL_WATER_FOG_DENSITY_EXPONENT = 1;
+        public const int WL_UNDERWATER_FOG_MODIFIER = 2;
+        public const int WL_REFLECTION_WAVELET_SCALE = 3;
+        public const int WL_FRESNEL_SCALE = 4;
+        public const int WL_FRESNEL_OFFSET = 5;
+        public const int WL_REFRACT_SCALE_ABOVE = 6;
+        public const int WL_REFRACT_SCALE_BELOW = 7;
+        public const int WL_BLUR_MULTIPLIER = 8;
+        public const int WL_BIG_WAVE_DIRECTION = 9;
+        public const int WL_LITTLE_WAVE_DIRECTION = 10;
+        public const int WL_NORMAL_MAP_TEXTURE = 11;
+        public const int WL_HORIZON = 12;
+        public const int WL_HAZE_HORIZON = 13;
+        public const int WL_BLUE_DENSITY = 14;
+        public const int WL_HAZE_DENSITY = 15;
+        public const int WL_DENSITY_MULTIPLIER = 16;
+        public const int WL_DISTANCE_MULTIPLIER = 17;
+        public const int WL_MAX_ALTITUDE = 18;
+        public const int WL_SUN_MOON_COLOR = 19;
+        public const int WL_AMBIENT = 20;
+        public const int WL_EAST_ANGLE = 21;
+        public const int WL_SUN_GLOW_FOCUS = 22;
+        public const int WL_SUN_GLOW_SIZE = 23;
+        public const int WL_SCENE_GAMMA = 24;
+        public const int WL_STAR_BRIGHTNESS = 25;
+        public const int WL_CLOUD_COLOR = 26;
+        public const int WL_CLOUD_XY_DENSITY = 27;
+        public const int WL_CLOUD_COVERAGE = 28;
+        public const int WL_CLOUD_SCALE = 29;
+        public const int WL_CLOUD_DETAIL_XY_DENSITY = 30;
+        public const int WL_CLOUD_SCROLL_X = 31;
+        public const int WL_CLOUD_SCROLL_Y = 32;
+        public const int WL_CLOUD_SCROLL_Y_LOCK = 33;
+        public const int WL_CLOUD_SCROLL_X_LOCK = 34;
+        public const int WL_DRAW_CLASSIC_CLOUDS = 35;
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Stub.cs
new file mode 100644
index 0000000..e85d41e
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Stub.cs
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Runtime.Remoting.Lifetime;
+using System.Threading;
+using System.Reflection;
+using System.Collections;
+using System.Collections.Generic;
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.ScriptEngine.Interfaces;
+using OpenSim.Region.ScriptEngine.Shared.Api.Interfaces;
+using integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+using rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
+using key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
+{
+    public partial class ScriptBaseClass : MarshalByRefObject
+    {
+        public ICM_Api m_CM_Functions;
+        public void ApiTypeCM(IScriptApi api)
+        {
+            if (!(api is ICM_Api))
+                return;
+            m_CM_Functions = (ICM_Api)api;
+        }
+        public LSL_List cmGetWindlightScene(LSL_List rules)
+        {
+            return m_CM_Functions.cmGetWindlightScene(rules);
+        }
+        public int cmSetWindlightScene(LSL_List rules)
+        {
+            return m_CM_Functions.cmSetWindlightScene(rules);
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/Executor.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/Executor.cs
index 7f67599..15e0408 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/Executor.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/Executor.cs
@@ -27,6 +27,7 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Reflection;
 using System.Runtime.Remoting.Lifetime;
 using OpenSim.Region.ScriptEngine.Shared;
@@ -131,6 +132,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
            return (eventFlags);
        }
+        [DebuggerNonUserCode]
        public void ExecuteEvent(string state, string FunctionName, object[] args)
        {
            // IMPORTANT: Types and MemberInfo-derived objects require a LOT of memory.
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OpenSim.Region.ScriptEngine.Shared.Api.Runtime.mdp b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OpenSim.Region.ScriptEngine.Shared.Api.Runtime.mdp
index 98bbc68..23138ef 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OpenSim.Region.ScriptEngine.Shared.Api.Runtime.mdp
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OpenSim.Region.ScriptEngine.Shared.Api.Runtime.mdp
@@ -17,6 +17,8 @@
    <excludeFiles />
  </DeploymentInformation>
  <Contents>
+    <File name="./CM_Constants.cs" subtype="Code" buildaction="Compile" dependson="" data="" />
+    <File name="./CM_Stub.cs" subtype="Code" buildaction="Compile" dependson="" data="" />
    <File name="./Executor.cs" subtype="Code" buildaction="Compile" dependson="" data="" />
    <File name="./LSL_Constants.cs" subtype="Code" buildaction="Compile" dependson="" data="" />
    <File name="./LSL_Stub.cs" subtype="Code" buildaction="Compile" dependson="" data="" />
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/ScriptBase.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/ScriptBase.cs
index 121159c..a44abb0 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/ScriptBase.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/ScriptBase.cs
@@ -33,6 +33,7 @@ using System.Threading;
 using System.Reflection;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using OpenSim.Region.ScriptEngine.Interfaces;
 using OpenSim.Region.ScriptEngine.Shared;
 using OpenSim.Region.ScriptEngine.Shared.Api.Runtime;
@@ -90,6 +91,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
            return (int)m_Executor.GetStateEventFlags(state);
        }
+        [DebuggerNonUserCode]
        public void ExecuteEvent(string state, string FunctionName, object[] args)
        {
            m_Executor.ExecuteEvent(state, FunctionName, args);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs b/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
index 5c5d57e..8333a27 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
@@ -27,6 +27,7 @@
 using System;
 using System.IO;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Runtime.Remoting;
 using System.Runtime.Remoting.Lifetime;
 using System.Threading;
@@ -237,13 +238,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
            if (part != null)
            {
-                lock (part.TaskInventory)
+                part.TaskInventory.LockItemsForRead(true);
+                if (part.TaskInventory.ContainsKey(m_ItemID))
                {
-                    if (part.TaskInventory.ContainsKey(m_ItemID))
+                    m_thisScriptTask = part.TaskInventory[m_ItemID];
-                    {
-                        m_thisScriptTask = part.TaskInventory[m_ItemID];
-                    }
                }
+                part.TaskInventory.LockItemsForRead(false);
            }
            ApiManager am = new ApiManager();
@@ -428,14 +428,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
            {
                int permsMask;
                UUID permsGranter;
-                lock (part.TaskInventory)
+                part.TaskInventory.LockItemsForRead(true);
+                if (!part.TaskInventory.ContainsKey(m_ItemID))
                {
-                    if (!part.TaskInventory.ContainsKey(m_ItemID))
+                    part.TaskInventory.LockItemsForRead(false);
-                        return;
+                    return;
-                    permsGranter = part.TaskInventory[m_ItemID].PermsGranter;
-                    permsMask = part.TaskInventory[m_ItemID].PermsMask;
                }
+                permsGranter = part.TaskInventory[m_ItemID].PermsGranter;
+                permsMask = part.TaskInventory[m_ItemID].PermsMask;
+                part.TaskInventory.LockItemsForRead(false);
                if ((permsMask & ScriptBaseClass.PERMISSION_TAKE_CONTROLS) != 0)
                {
@@ -544,6 +545,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
            return true;
        }
+        [DebuggerNonUserCode] //Prevents the debugger from farting in this function
        public void SetState(string state)
        {
            if (state == State)
@@ -555,7 +557,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
                                       new DetectParams[0]));
            PostEvent(new EventParams("state_entry", new Object[0],
                                       new DetectParams[0]));
+            
            throw new EventAbortException();
        }
@@ -638,154 +640,158 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
        /// <returns></returns>
        public object EventProcessor()
        {
+        EventParams data = null;
+        lock (m_EventQueue)
+        {
            lock (m_Script)
            {
-                EventParams data = null;
+                data = (EventParams) m_EventQueue.Dequeue();
+                if (data == null) // Shouldn't happen
-                lock (m_EventQueue)
                {
-                    data = (EventParams) m_EventQueue.Dequeue();
+                    if ((m_EventQueue.Count > 0) && m_RunEvents && (!m_ShuttingDown))
-                    if (data == null) // Shouldn't happen
                    {
-                        if ((m_EventQueue.Count > 0) && m_RunEvents && (!m_ShuttingDown))
+                        m_CurrentResult = m_Engine.QueueEventHandler(this);
-                        {
-                            m_CurrentResult = m_Engine.QueueEventHandler(this);
-                        }
-                        else
-                        {
-                            m_CurrentResult = null;
-                        }
-                        return 0;
                    }
+                    else
-                    if (data.EventName == "timer")
-                        m_TimerQueued = false;
-                    if (data.EventName == "control")
                    {
-                        if (m_ControlEventsInQueue > 0)
+                        m_CurrentResult = null;
-                            m_ControlEventsInQueue--;
                    }
-                    if (data.EventName == "collision")
+                    return 0;
-                        m_CollisionInQueue = false;
                }
-                
-                //m_log.DebugFormat("[XENGINE]: Processing event {0} for {1}", data.EventName, this);
-                m_DetectParams = data.DetectParams;
+                if (data.EventName == "timer")
+                    m_TimerQueued = false;
-                if (data.EventName == "state") // Hardcoded state change
+                if (data.EventName == "control")
                {
-    //                m_log.DebugFormat("[Script] Script {0}.{1} state set to {2}",
+                    if (m_ControlEventsInQueue > 0)
-    //                        m_PrimName, m_ScriptName, data.Params[0].ToString());
+                        m_ControlEventsInQueue--;
-                    m_State=data.Params[0].ToString();
+                }
-                    AsyncCommandManager.RemoveScript(m_Engine,
+                if (data.EventName == "collision")
-                        m_LocalID, m_ItemID);
+                    m_CollisionInQueue = false;
+            }
+        }
+        lock(m_Script)
+        {
+            
+            //m_log.DebugFormat("[XENGINE]: Processing event {0} for {1}", data.EventName, this);
-                    SceneObjectPart part = m_Engine.World.GetSceneObjectPart(
+            m_DetectParams = data.DetectParams;
-                        m_LocalID);
-                    if (part != null)
+            if (data.EventName == "state") // Hardcoded state change
-                    {
+            {
-                        part.SetScriptEvents(m_ItemID,
+//                m_log.DebugFormat("[Script] Script {0}.{1} state set to {2}",
-                                             (int)m_Script.GetStateEventFlags(State));
+//                        m_PrimName, m_ScriptName, data.Params[0].ToString());
-                    }
+                m_State=data.Params[0].ToString();
+                AsyncCommandManager.RemoveScript(m_Engine,
+                    m_LocalID, m_ItemID);
+                SceneObjectPart part = m_Engine.World.GetSceneObjectPart(
+                    m_LocalID);
+                if (part != null)
+                {
+                    part.SetScriptEvents(m_ItemID,
+                                         (int)m_Script.GetStateEventFlags(State));
                }
-                else
+            }
+            else
+            {
+                if (m_Engine.World.PipeEventsForScript(m_LocalID) ||
+                    data.EventName == "control") // Don't freeze avies!
                {
-                    if (m_Engine.World.PipeEventsForScript(m_LocalID) ||
+                    SceneObjectPart part = m_Engine.World.GetSceneObjectPart(
-                        data.EventName == "control") // Don't freeze avies!
+                        m_LocalID);
-                    {
+    //                m_log.DebugFormat("[Script] Delivered event {2} in state {3} to {0}.{1}",
-                        SceneObjectPart part = m_Engine.World.GetSceneObjectPart(
+    //                        m_PrimName, m_ScriptName, data.EventName, m_State);
-                            m_LocalID);
-        //                m_log.DebugFormat("[Script] Delivered event {2} in state {3} to {0}.{1}",
-        //                        m_PrimName, m_ScriptName, data.EventName, m_State);
-                        try
+                    try
-                        {
+                    {
-                            m_CurrentEvent = data.EventName;
+                        m_CurrentEvent = data.EventName;
-                            m_EventStart = DateTime.Now;
+                        m_EventStart = DateTime.Now;
-                            m_InEvent = true;
+                        m_InEvent = true;
-                            m_Script.ExecuteEvent(State, data.EventName, data.Params);
+                        m_Script.ExecuteEvent(State, data.EventName, data.Params);
-                            m_InEvent = false;
+                        m_InEvent = false;
-                            m_CurrentEvent = String.Empty;
+                        m_CurrentEvent = String.Empty;
-                            if (m_SaveState)
+                        if (m_SaveState)
-                            {
+                        {
-                                // This will be the very first event we deliver
+                            // This will be the very first event we deliver
-                                // (state_entry) in default state
+                            // (state_entry) in default state
-                                //
+                            //
-                                SaveState(m_Assembly);
+                            SaveState(m_Assembly);
-                                m_SaveState = false;
+                            m_SaveState = false;
-                            }
                        }
-                        catch (Exception e)
+                    }
-                        {
+                    catch (Exception e)
-                            // m_log.DebugFormat("[SCRIPT] Exception: {0}", e.Message);
+                    {
-                            m_InEvent = false;
+                        // m_log.DebugFormat("[SCRIPT] Exception: {0}", e.Message);
-                            m_CurrentEvent = String.Empty;
+                        m_InEvent = false;
+                        m_CurrentEvent = String.Empty;
-                            if ((!(e is TargetInvocationException) || (!(e.InnerException is SelfDeleteException) && !(e.InnerException is ScriptDeleteException))) && !(e is ThreadAbortException))
+                        if ((!(e is TargetInvocationException) || (!(e.InnerException is SelfDeleteException) && !(e.InnerException is ScriptDeleteException))) && !(e is ThreadAbortException))
-                            {
+                        {
-                                try
+                            try
-                                {
-                                    // DISPLAY ERROR INWORLD
-                                    string text = FormatException(e);
-                                    if (text.Length > 1000)
-                                        text = text.Substring(0, 1000);
-                                    m_Engine.World.SimChat(Utils.StringToBytes(text),
-                                                           ChatTypeEnum.DebugChannel, 2147483647,
-                                                           part.AbsolutePosition,
-                                                           part.Name, part.UUID, false);
-                                }
-                                catch (Exception)
-                                {
-                                }
-                                // catch (Exception e2) // LEGIT: User Scripting
-                                // {
-                                    // m_log.Error("[SCRIPT]: "+
-                                      //           "Error displaying error in-world: " +
-                                        //         e2.ToString());
-                                 //    m_log.Error("[SCRIPT]: " +
-                                   //              "Errormessage: Error compiling script:\r\n" +
-                                     //            e.ToString());
-                                // }
-                            }
-                            else if ((e is TargetInvocationException) && (e.InnerException is SelfDeleteException))
                            {
-                                m_InSelfDelete = true;
+                                // DISPLAY ERROR INWORLD
-                                if (part != null && part.ParentGroup != null)
+                                string text = FormatException(e);
-                                    m_Engine.World.DeleteSceneObject(part.ParentGroup, false);
+                                if (text.Length > 1000)
+                                    text = text.Substring(0, 1000);
+                                m_Engine.World.SimChat(Utils.StringToBytes(text),
+                                                       ChatTypeEnum.DebugChannel, 2147483647,
+                                                       part.AbsolutePosition,
+                                                       part.Name, part.UUID, false);
                            }
-                            else if ((e is TargetInvocationException) && (e.InnerException is ScriptDeleteException))
+                            catch (Exception)
                            {
-                                m_InSelfDelete = true;
-                                if (part != null && part.ParentGroup != null)
-                                    part.Inventory.RemoveInventoryItem(m_ItemID);
                            }
+                            // catch (Exception e2) // LEGIT: User Scripting
+                            // {
+                                // m_log.Error("[SCRIPT]: "+
+                                  //           "Error displaying error in-world: " +
+                                    //         e2.ToString());
+                             //    m_log.Error("[SCRIPT]: " +
+                               //              "Errormessage: Error compiling script:\r\n" +
+                                 //            e.ToString());
+                            // }
+                        }
+                        else if ((e is TargetInvocationException) && (e.InnerException is SelfDeleteException))
+                        {
+                            m_InSelfDelete = true;
+                            if (part != null && part.ParentGroup != null)
+                                m_Engine.World.DeleteSceneObject(part.ParentGroup, false);
+                        }
+                        else if ((e is TargetInvocationException) && (e.InnerException is ScriptDeleteException))
+                        {
+                            m_InSelfDelete = true;
+                            if (part != null && part.ParentGroup != null)
+                                part.Inventory.RemoveInventoryItem(m_ItemID);
                        }
                    }
                }
+            }
-                lock (m_EventQueue)
+            lock (m_EventQueue)
+            {
+                if ((m_EventQueue.Count > 0) && m_RunEvents && (!m_ShuttingDown))
                {
-                    if ((m_EventQueue.Count > 0) && m_RunEvents && (!m_ShuttingDown))
+                    m_CurrentResult = m_Engine.QueueEventHandler(this);
-                    {
+                }
-                        m_CurrentResult = m_Engine.QueueEventHandler(this);
+                else
-                    }
+                {
-                    else
+                    m_CurrentResult = null;
-                    {
-                        m_CurrentResult = null;
-                    }
                }
+            }
-                m_DetectParams = null;
+            m_DetectParams = null;
-                return 0;
+            return 0;
-            }
+        }
        }
        public int EventTime()
@@ -824,6 +830,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
                    new Object[0], new DetectParams[0]));
        }
+        [DebuggerNonUserCode] //Stops the VS debugger from farting in this function
        public void ApiResetScript()
        {
            // bool running = Running;
diff --git a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
index 3f38bb6..1fc31c5 100644
--- a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
@@ -429,6 +429,11 @@ namespace OpenSim.Region.ScriptEngine.Shared
                }
            }
+            public int Size
+            {
+                get { return 0; }
+            }
            public object[] Data
            {
                get {
diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index 9030a5c..184af19 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -30,6 +30,7 @@ using System.IO;
 using System.Threading;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Security;
 using System.Security.Policy;
 using System.Reflection;
@@ -100,6 +101,8 @@ namespace OpenSim.Region.ScriptEngine.XEngine
        private Dictionary<UUID, IScriptInstance> m_Scripts =
                new Dictionary<UUID, IScriptInstance>();
+        private OpenMetaverse.ReaderWriterLockSlim m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim();
        // Maps the asset ID to the assembly
        private Dictionary<UUID, string> m_Assemblies =
@@ -121,6 +124,71 @@ namespace OpenSim.Region.ScriptEngine.XEngine
        private ScriptCompileQueue m_CompileQueue = new ScriptCompileQueue();
        IWorkItemResult m_CurrentCompile = null;
+        private void lockScriptsForRead(bool locked)
+        {
+            if (locked)
+            {
+                if (m_scriptsLock.RecursiveReadCount > 0)
+                {
+                    m_log.Error("[XEngine.m_Scripts] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue.");
+                    m_scriptsLock.ExitReadLock();
+                }
+                if (m_scriptsLock.RecursiveWriteCount > 0)
+                {
+                    m_log.Error("[XEngine.m_Scripts] Recursive write lock requested. This should not happen and means something needs to be fixed.");
+                    m_scriptsLock.ExitWriteLock();
+                }
+                while (!m_scriptsLock.TryEnterReadLock(60000))
+                {
+                    m_log.Error("[XEngine.m_Scripts] Thread lock detected while trying to aquire READ lock of m_scripts in XEngine. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed.");
+                    if (m_scriptsLock.IsWriteLockHeld)
+                    {
+                        m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim();
+                    }
+                }
+            }
+            else
+            {
+                if (m_scriptsLock.RecursiveReadCount > 0)
+                {
+                    m_scriptsLock.ExitReadLock();
+                }
+            }
+        }
+        private void lockScriptsForWrite(bool locked)
+        {
+            if (locked)
+            {
+                if (m_scriptsLock.RecursiveReadCount > 0)
+                {
+                    m_log.Error("[XEngine.m_Scripts] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue.");
+                    m_scriptsLock.ExitReadLock();
+                }
+                if (m_scriptsLock.RecursiveWriteCount > 0)
+                {
+                    m_log.Error("[XEngine.m_Scripts] Recursive write lock requested. This should not happen and means something needs to be fixed.");
+                    m_scriptsLock.ExitWriteLock();
+                }
+                while (!m_scriptsLock.TryEnterWriteLock(60000))
+                {
+                    m_log.Error("[XEngine.m_Scripts] Thread lock detected while trying to aquire WRITE lock of m_scripts in XEngine. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed.");
+                    if (m_scriptsLock.IsWriteLockHeld)
+                    {
+                        m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim();
+                    }
+                }
+            }
+            else
+            {
+                if (m_scriptsLock.RecursiveWriteCount > 0)
+                {
+                    m_scriptsLock.ExitWriteLock();
+                }
+            }
+        }
        public string ScriptEngineName
        {
            get { return "XEngine"; }
@@ -260,43 +328,45 @@ namespace OpenSim.Region.ScriptEngine.XEngine
        public void RemoveRegion(Scene scene)
        {
-            lock (m_Scripts)
+            lockScriptsForRead(true);
+            foreach (IScriptInstance instance in m_Scripts.Values)
            {
-                foreach (IScriptInstance instance in m_Scripts.Values)
+                // Force a final state save
+                //
+                if (m_Assemblies.ContainsKey(instance.AssetID))
                {
-                    // Force a final state save
+                    string assembly = m_Assemblies[instance.AssetID];
-                    //
+                    instance.SaveState(assembly);
-                    if (m_Assemblies.ContainsKey(instance.AssetID))
+                }
-                    {
-                        string assembly = m_Assemblies[instance.AssetID];
-                        instance.SaveState(assembly);
-                    }
-                    // Clear the event queue and abort the instance thread
+                // Clear the event queue and abort the instance thread
-                    //
+                //
-                    instance.ClearQueue();
+                instance.ClearQueue();
-                    instance.Stop(0);
+                instance.Stop(0);
-                    // Release events, timer, etc
+                // Release events, timer, etc
-                    //
+                //
-                    instance.DestroyScriptInstance();
+                instance.DestroyScriptInstance();
-                    // Unload scripts and app domains
+                // Unload scripts and app domains
-                    // Must be done explicitly because they have infinite
+                // Must be done explicitly because they have infinite
-                    // lifetime
+                // lifetime
-                    //
+                //
-                    m_DomainScripts[instance.AppDomain].Remove(instance.ItemID);
+                m_DomainScripts[instance.AppDomain].Remove(instance.ItemID);
-                    if (m_DomainScripts[instance.AppDomain].Count == 0)
+                if (m_DomainScripts[instance.AppDomain].Count == 0)
-                    {
+                {
-                        m_DomainScripts.Remove(instance.AppDomain);
+                    m_DomainScripts.Remove(instance.AppDomain);
-                        UnloadAppDomain(instance.AppDomain);
+                    UnloadAppDomain(instance.AppDomain);
-                    }
                }
-                m_Scripts.Clear();
-                m_PrimObjects.Clear();
-                m_Assemblies.Clear();
-                m_DomainScripts.Clear();
            }
+            lockScriptsForRead(false);
+            lockScriptsForWrite(true);
+            m_Scripts.Clear();
+            lockScriptsForWrite(false);
+            m_PrimObjects.Clear();
+            m_Assemblies.Clear();
+            m_DomainScripts.Clear();
+           
            lock (m_ScriptEngines)
            {
                m_ScriptEngines.Remove(this);
@@ -355,22 +425,20 @@ namespace OpenSim.Region.ScriptEngine.XEngine
            List<IScriptInstance> instances = new List<IScriptInstance>();
-            lock (m_Scripts)
+            lockScriptsForRead(true);
-            {
+                 foreach (IScriptInstance instance in m_Scripts.Values)
-                foreach (IScriptInstance instance in m_Scripts.Values)
                    instances.Add(instance);
-            }
+            lockScriptsForRead(false);
            foreach (IScriptInstance i in instances)
            {
                string assembly = String.Empty;
-                lock (m_Scripts)
+                
-                {
                    if (!m_Assemblies.ContainsKey(i.AssetID))
                        continue;
                    assembly = m_Assemblies[i.AssetID];
-                }
+                
                i.SaveState(assembly);
            }
@@ -672,172 +740,183 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                return false;
            }
-            lock (m_Scripts)
+            
+            ScriptInstance instance = null;
+            // Create the object record
+            lockScriptsForRead(true);
+            if ((!m_Scripts.ContainsKey(itemID)) ||
+                (m_Scripts[itemID].AssetID != assetID))
            {
-                ScriptInstance instance = null;
+                lockScriptsForRead(false);
-                // Create the object record
-                if ((!m_Scripts.ContainsKey(itemID)) ||
+                UUID appDomain = assetID;
-                    (m_Scripts[itemID].AssetID != assetID))
-                {
-                    UUID appDomain = assetID;
-                    if (part.ParentGroup.IsAttachment)
+                if (part.ParentGroup.IsAttachment)
-                        appDomain = part.ParentGroup.RootPart.UUID;
+                    appDomain = part.ParentGroup.RootPart.UUID;
-                    if (!m_AppDomains.ContainsKey(appDomain))
+                if (!m_AppDomains.ContainsKey(appDomain))
+                {
+                    try
                    {
-                        try
+                        AppDomainSetup appSetup = new AppDomainSetup();
-                        {
+                        //                            appSetup.ApplicationBase = Path.Combine(
-                            AppDomainSetup appSetup = new AppDomainSetup();
+                        //                                    "ScriptEngines",
-//                            appSetup.ApplicationBase = Path.Combine(
+                        //                                    m_Scene.RegionInfo.RegionID.ToString());
-//                                    "ScriptEngines",
-//                                    m_Scene.RegionInfo.RegionID.ToString());
+                        Evidence baseEvidence = AppDomain.CurrentDomain.Evidence;
+                        Evidence evidence = new Evidence(baseEvidence);
-                            Evidence baseEvidence = AppDomain.CurrentDomain.Evidence;
-                            Evidence evidence = new Evidence(baseEvidence);
+                        AppDomain sandbox;
+                        if (m_AppDomainLoading)
-                            AppDomain sandbox;
+                            sandbox = AppDomain.CreateDomain(
-                            if (m_AppDomainLoading)
+                                            m_Scene.RegionInfo.RegionID.ToString(),
-                                sandbox = AppDomain.CreateDomain(
+                                            evidence, appSetup);
-                                                m_Scene.RegionInfo.RegionID.ToString(),
+                        else
-                                                evidence, appSetup);
+                            sandbox = AppDomain.CurrentDomain;
-                            else
-                                sandbox = AppDomain.CurrentDomain;
+                        //PolicyLevel sandboxPolicy = PolicyLevel.CreateAppDomainLevel();
-                            
+                        //AllMembershipCondition sandboxMembershipCondition = new AllMembershipCondition();
-                            //PolicyLevel sandboxPolicy = PolicyLevel.CreateAppDomainLevel();
+                        //PermissionSet sandboxPermissionSet = sandboxPolicy.GetNamedPermissionSet("Internet");
-                            //AllMembershipCondition sandboxMembershipCondition = new AllMembershipCondition();
+                        //PolicyStatement sandboxPolicyStatement = new PolicyStatement(sandboxPermissionSet);
-                            //PermissionSet sandboxPermissionSet = sandboxPolicy.GetNamedPermissionSet("Internet");
+                        //CodeGroup sandboxCodeGroup = new UnionCodeGroup(sandboxMembershipCondition, sandboxPolicyStatement);
-                            //PolicyStatement sandboxPolicyStatement = new PolicyStatement(sandboxPermissionSet);
+                        //sandboxPolicy.RootCodeGroup = sandboxCodeGroup;
-                            //CodeGroup sandboxCodeGroup = new UnionCodeGroup(sandboxMembershipCondition, sandboxPolicyStatement);
+                        //sandbox.SetAppDomainPolicy(sandboxPolicy);
-                            //sandboxPolicy.RootCodeGroup = sandboxCodeGroup;
-                            //sandbox.SetAppDomainPolicy(sandboxPolicy);
+                        m_AppDomains[appDomain] = sandbox;
-                            
-                            m_AppDomains[appDomain] = sandbox;
+                        m_AppDomains[appDomain].AssemblyResolve +=
+                            new ResolveEventHandler(
-                            m_AppDomains[appDomain].AssemblyResolve +=
+                                AssemblyResolver.OnAssemblyResolve);
-                                new ResolveEventHandler(
+                        m_DomainScripts[appDomain] = new List<UUID>();
-                                    AssemblyResolver.OnAssemblyResolve);
-                            m_DomainScripts[appDomain] = new List<UUID>();
-                        }
-                        catch (Exception e)
-                        {
-                            m_log.ErrorFormat("[XEngine] Exception creating app domain:\n {0}", e.ToString());
-                            m_ScriptErrorMessage += "Exception creating app domain:\n";
-                            m_ScriptFailCount++;
-                            lock (m_AddingAssemblies) 
-                            {
-                                m_AddingAssemblies[assembly]--;
-                            }
-                            return false;
-                        }
                    }
-                    m_DomainScripts[appDomain].Add(itemID);
+                    catch (Exception e)
-                    instance = new ScriptInstance(this, part,
-                                                  itemID, assetID, assembly,
-                                                  m_AppDomains[appDomain],
-                                                  part.ParentGroup.RootPart.Name,
-                                                  item.Name, startParam, postOnRez,
-                                                  stateSource, m_MaxScriptQueue);
-                    
-                    m_log.DebugFormat("[XEngine] Loaded script {0}.{1}, script UUID {2}, prim UUID {3} @ {4}",
-                            part.ParentGroup.RootPart.Name, item.Name, assetID, part.UUID, part.ParentGroup.RootPart.AbsolutePosition.ToString());
-                    if (presence != null)
                    {
-                        ShowScriptSaveResponse(item.OwnerID,
+                        m_log.ErrorFormat("[XEngine] Exception creating app domain:\n {0}", e.ToString());
-                                assetID, "Compile successful", true);
+                        m_ScriptErrorMessage += "Exception creating app domain:\n";
+                        m_ScriptFailCount++;
+                        lock (m_AddingAssemblies)
+                        {
+                            m_AddingAssemblies[assembly]--;
+                        }
+                        return false;
                    }
+                }
+                m_DomainScripts[appDomain].Add(itemID);
-                    instance.AppDomain = appDomain;
+                instance = new ScriptInstance(this, part,
-                    instance.LineMap = linemap;
+                                              itemID, assetID, assembly,
+                                              m_AppDomains[appDomain],
+                                              part.ParentGroup.RootPart.Name,
+                                              item.Name, startParam, postOnRez,
+                                              stateSource, m_MaxScriptQueue);
-                    m_Scripts[itemID] = instance;
+                m_log.DebugFormat("[XEngine] Loaded script {0}.{1}, script UUID {2}, prim UUID {3} @ {4}",
-                }
+                        part.ParentGroup.RootPart.Name, item.Name, assetID, part.UUID, part.ParentGroup.RootPart.AbsolutePosition.ToString());
-                lock (m_PrimObjects)
+                if (presence != null)
                {
-                    if (!m_PrimObjects.ContainsKey(localID))
+                    ShowScriptSaveResponse(item.OwnerID,
-                        m_PrimObjects[localID] = new List<UUID>();
+                            assetID, "Compile successful", true);
+                }
-                    if (!m_PrimObjects[localID].Contains(itemID))
+                instance.AppDomain = appDomain;
-                        m_PrimObjects[localID].Add(itemID);
+                instance.LineMap = linemap;
+                lockScriptsForWrite(true);
+                m_Scripts[itemID] = instance;
+                lockScriptsForWrite(false);
+            }
+            else
+            {
+                lockScriptsForRead(false);
+            }
+            lock (m_PrimObjects)
+            {
+                if (!m_PrimObjects.ContainsKey(localID))
+                    m_PrimObjects[localID] = new List<UUID>();
-                }
+                if (!m_PrimObjects[localID].Contains(itemID))
+                    m_PrimObjects[localID].Add(itemID);
-                if (!m_Assemblies.ContainsKey(assetID))
+            }
-                    m_Assemblies[assetID] = assembly;
-                lock (m_AddingAssemblies) 
+            if (!m_Assemblies.ContainsKey(assetID))
-                {
+                m_Assemblies[assetID] = assembly;
-                    m_AddingAssemblies[assembly]--;
-                }
-                if (instance!=null) 
+            lock (m_AddingAssemblies) 
-                    instance.Init();
+            {
+                m_AddingAssemblies[assembly]--;
            }
+            if (instance!=null) 
+                instance.Init();
+            
            return true;
        }
        public void OnRemoveScript(uint localID, UUID itemID)
        {
-            lock (m_Scripts)
+            lockScriptsForRead(true);
+            // Do we even have it?
+            if (!m_Scripts.ContainsKey(itemID))
            {
-                // Do we even have it?
+                lockScriptsForRead(false);
-                if (!m_Scripts.ContainsKey(itemID))
+                return;
-                    return;
+            }
+             
-                IScriptInstance instance=m_Scripts[itemID];
-                m_Scripts.Remove(itemID);
-                instance.ClearQueue();
+            IScriptInstance instance=m_Scripts[itemID];
-                instance.Stop(0);
+            lockScriptsForRead(false);
+            lockScriptsForWrite(true);
+            m_Scripts.Remove(itemID);
+            lockScriptsForWrite(false);
+            instance.ClearQueue();
+            instance.Stop(0);
-                SceneObjectPart part =
+            SceneObjectPart part =
-                    m_Scene.GetSceneObjectPart(localID);
+                m_Scene.GetSceneObjectPart(localID);
-                if (part != null)
+            if (part != null)
-                    part.RemoveScriptEvents(itemID);
+                part.RemoveScriptEvents(itemID);
 //                bool objectRemoved = false;
-                lock (m_PrimObjects)
+            lock (m_PrimObjects)
+            {
+                // Remove the script from it's prim
+                if (m_PrimObjects.ContainsKey(localID))
                {
-                    // Remove the script from it's prim
+                    // Remove inventory item record
-                    if (m_PrimObjects.ContainsKey(localID))
+                    if (m_PrimObjects[localID].Contains(itemID))
-                    {
+                        m_PrimObjects[localID].Remove(itemID);
-                        // Remove inventory item record
-                        if (m_PrimObjects[localID].Contains(itemID))
-                            m_PrimObjects[localID].Remove(itemID);
-                        // If there are no more scripts, remove prim
+                    // If there are no more scripts, remove prim
-                        if (m_PrimObjects[localID].Count == 0)
+                    if (m_PrimObjects[localID].Count == 0)
-                        {
+                    {
-                            m_PrimObjects.Remove(localID);
+                        m_PrimObjects.Remove(localID);
 //                            objectRemoved = true;
-                        }
                    }
                }
+            }
-                instance.RemoveState();
+            instance.RemoveState();
-                instance.DestroyScriptInstance();
+            instance.DestroyScriptInstance();
-                m_DomainScripts[instance.AppDomain].Remove(instance.ItemID);
+            m_DomainScripts[instance.AppDomain].Remove(instance.ItemID);
-                if (m_DomainScripts[instance.AppDomain].Count == 0)
+            if (m_DomainScripts[instance.AppDomain].Count == 0)
-                {
+            {
-                    m_DomainScripts.Remove(instance.AppDomain);
+                m_DomainScripts.Remove(instance.AppDomain);
-                    UnloadAppDomain(instance.AppDomain);
+                UnloadAppDomain(instance.AppDomain);
-                }
+            }
-                instance = null;
+            instance = null;
-                ObjectRemoved handlerObjectRemoved = OnObjectRemoved;
+            ObjectRemoved handlerObjectRemoved = OnObjectRemoved;
-                if (handlerObjectRemoved != null)
+            if (handlerObjectRemoved != null)
-                    handlerObjectRemoved(part.UUID);
+                handlerObjectRemoved(part.UUID);
-                CleanAssemblies();
+            CleanAssemblies();
-            }
+            
            ScriptRemoved handlerScriptRemoved = OnScriptRemoved;
            if (handlerScriptRemoved != null)
@@ -1090,12 +1169,14 @@ namespace OpenSim.Region.ScriptEngine.XEngine
        private IScriptInstance GetInstance(UUID itemID)
        {
            IScriptInstance instance;
-            lock (m_Scripts)
+            lockScriptsForRead(true);
+            if (!m_Scripts.ContainsKey(itemID))
            {
-                if (!m_Scripts.ContainsKey(itemID))
+                lockScriptsForRead(false);
-                    return null;
+                return null;
-                instance = m_Scripts[itemID];
            }
+            instance = m_Scripts[itemID];
+            lockScriptsForRead(false);
            return instance;
        }
@@ -1119,6 +1200,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
            return false;
        }
+        [DebuggerNonUserCode]
        public void ApiResetScript(UUID itemID)
        {
            IScriptInstance instance = GetInstance(itemID);
@@ -1170,6 +1252,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
            return UUID.Zero;
        }
+        [DebuggerNonUserCode]
        public void SetState(UUID itemID, string newState)
        {
            IScriptInstance instance = GetInstance(itemID);
@@ -1197,11 +1280,10 @@ namespace OpenSim.Region.ScriptEngine.XEngine
        {
            List<IScriptInstance> instances = new List<IScriptInstance>();
-            lock (m_Scripts)
+            lockScriptsForRead(true);
-            {
+            foreach (IScriptInstance instance in m_Scripts.Values)
-                foreach (IScriptInstance instance in m_Scripts.Values)
                    instances.Add(instance);
-            }
+            lockScriptsForRead(false);
            foreach (IScriptInstance i in instances)
            {
diff --git a/OpenSim/Tests/Common/Mock/TestClient.cs b/OpenSim/Tests/Common/Mock/TestClient.cs
index 27025d9..5f172c4 100644
--- a/OpenSim/Tests/Common/Mock/TestClient.cs
+++ b/OpenSim/Tests/Common/Mock/TestClient.cs
@@ -491,7 +491,7 @@ namespace OpenSim.Tests.Common.Mock
        }
-        public void SendGenericMessage(string method, List<string> message)
+        public void SendGenericMessage(string method, List<byte[]> message)
        {
        }