* Applied patch from Melanie, mantis issue #1581 - "Refactor LSL language, api and compiler out of XEngine"

"First stage in a major Script Engine refactor, that will result in the LSL implementaions ebing reconverged. Not there yet, but one major part is done."
Thank you, Melanie!

6 files changed, 979 insertions, 0 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Dataserver.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Dataserver.cs
new file mode 100644
index 0000000..6c88ae86
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Dataserver.cs
@@ -0,0 +1,128 @@
+/*
+ * 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 OpenSim 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.Collections;
+using System.Collections.Generic;
+using libsecondlife;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
+{
+    public class Dataserver
+    {
+        public AsyncCommandManager m_CmdManager;
+
+        private Dictionary<string, DataserverRequest> DataserverRequests =
+                new Dictionary<string, DataserverRequest>();
+
+        public Dataserver(AsyncCommandManager CmdManager)
+        {
+            m_CmdManager = CmdManager;
+        }
+
+        private class DataserverRequest
+        {
+            public uint localID;
+            public LLUUID itemID;
+
+            public LLUUID ID;
+            public string handle;
+
+            public DateTime startTime;
+        }
+
+        public LLUUID RegisterRequest(uint localID, LLUUID itemID,
+                                      string identifier)
+        {
+            lock (DataserverRequests)
+            {
+                if (DataserverRequests.ContainsKey(identifier))
+                    return LLUUID.Zero;
+
+                DataserverRequest ds = new DataserverRequest();
+
+                ds.localID = localID;
+                ds.itemID = itemID;
+
+                ds.ID = LLUUID.Random();
+                ds.handle = identifier;
+
+                ds.startTime = DateTime.Now;
+
+                DataserverRequests[identifier]=ds;
+
+                return ds.ID;
+            }
+        }
+
+        public void DataserverReply(string identifier, string reply)
+        {
+            DataserverRequest ds;
+
+            lock (DataserverRequests)
+            {
+                if (!DataserverRequests.ContainsKey(identifier))
+                    return;
+                
+                ds=DataserverRequests[identifier];
+                DataserverRequests.Remove(identifier);
+            }
+
+            m_CmdManager.m_ScriptEngine.PostObjectEvent(ds.localID,
+                    new EventParams("dataserver", new Object[]
+                            { new LSL_Types.LSLString(ds.ID.ToString()),
+                            new LSL_Types.LSLString(reply)},
+                    new DetectParams[0]));
+        }
+
+        public void RemoveEvents(uint localID, LLUUID itemID)
+        {
+            lock (DataserverRequests)
+            {
+                foreach (DataserverRequest ds in new List<DataserverRequest>(DataserverRequests.Values))
+                {
+                    if (ds.itemID == itemID)
+                        DataserverRequests.Remove(ds.handle);
+                }
+            }
+        }
+
+        public void ExpireRequests()
+        {
+            lock (DataserverRequests)
+            {
+                foreach (DataserverRequest ds in new List<DataserverRequest>(DataserverRequests.Values))
+                {
+                    if (ds.startTime > DateTime.Now.AddSeconds(30))
+                        DataserverRequests.Remove(ds.handle);
+                }
+            }
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/HttpRequest.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/HttpRequest.cs
new file mode 100644
index 0000000..92f603d
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/HttpRequest.cs
@@ -0,0 +1,91 @@
+/*
+ * 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 OpenSim 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 OpenSim.Region.Environment.Interfaces;
+using OpenSim.Region.Environment.Modules.Scripting.HttpRequest;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Interfaces;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
+{
+    public class HttpRequest
+    {
+        public AsyncCommandManager m_CmdManager;
+
+        public HttpRequest(AsyncCommandManager CmdManager)
+        {
+            m_CmdManager = CmdManager;
+        }
+
+        public void CheckHttpRequests()
+        {
+            if (m_CmdManager.m_ScriptEngine.World == null)
+                return;
+
+            IHttpRequests iHttpReq =
+                m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IHttpRequests>();
+
+            HttpRequestClass httpInfo = null;
+
+            if (iHttpReq != null)
+                httpInfo = iHttpReq.GetNextCompletedRequest();
+
+            while (httpInfo != null)
+            {
+                //m_ScriptEngine.Log.Info("[AsyncLSL]:" + httpInfo.response_body + httpInfo.status);
+
+                // Deliver data to prim's remote_data handler
+                //
+                // TODO: Returning null for metadata, since the lsl function
+                // only returns the byte for HTTP_BODY_TRUNCATED, which is not
+                // implemented here yet anyway.  Should be fixed if/when maxsize
+                // is supported
+
+                iHttpReq.RemoveCompletedRequest(httpInfo.reqID);
+
+                object[] resobj = new object[]
+                {
+                    new LSL_Types.LSLString(httpInfo.reqID.ToString()),
+                    new LSL_Types.LSLInteger(httpInfo.status),
+                    new LSL_Types.list(),
+                    new LSL_Types.LSLString(httpInfo.response_body)
+                };
+
+                foreach (AsyncCommandManager m in m_CmdManager.Managers)
+                {
+                    if (m.m_ScriptEngine.PostObjectEvent(httpInfo.localID,
+                            new EventParams("http_response",
+                            resobj, new DetectParams[0])))
+                        break;
+                }
+                httpInfo = iHttpReq.GetNextCompletedRequest();
+            }
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Listener.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Listener.cs
new file mode 100644
index 0000000..11b45b1
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Listener.cs
@@ -0,0 +1,92 @@
+/*
+ * 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 OpenSim 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 libsecondlife;
+using OpenSim.Region.Environment.Interfaces;
+using OpenSim.Region.Environment.Modules.Scripting.WorldComm;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
+{
+    public class Listener
+    {
+        // private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
+
+        public AsyncCommandManager m_CmdManager;
+
+        public Listener(AsyncCommandManager CmdManager)
+        {
+            m_CmdManager = CmdManager;
+        }
+
+        public void CheckListeners()
+        {
+            if (m_CmdManager.m_ScriptEngine.World == null)
+                return;
+            IWorldComm comms = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
+
+            if (comms != null)
+            {
+                while (comms.HasMessages())
+                {
+                    ListenerInfo lInfo = comms.GetNextMessage();
+
+                    //Deliver data to prim's listen handler
+                    object[] resobj = new object[]
+                    {
+                        new LSL_Types.LSLInteger(lInfo.GetChannel()),
+                        new LSL_Types.LSLString(lInfo.GetName()),
+                        new LSL_Types.LSLString(lInfo.GetID().ToString()),
+                        new LSL_Types.LSLString(lInfo.GetMessage())
+                    };
+
+                    m_CmdManager.m_ScriptEngine.PostScriptEvent(
+                            lInfo.GetItemID(), new EventParams(
+                            "listen", resobj,
+                            new DetectParams[0]));
+                }
+            }
+        }
+
+        public Object[] GetSerializationData(LLUUID itemID)
+        {
+            IWorldComm comms = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
+
+            return comms.GetSerializationData(itemID);
+        }
+
+        public void CreateFromData(uint localID, LLUUID itemID, LLUUID hostID,
+                Object[] data)
+        {
+            IWorldComm comms = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
+
+            comms.CreateFromData(localID, itemID, hostID, data);
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
new file mode 100644
index 0000000..5833512
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
@@ -0,0 +1,389 @@
+/*
+ * 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 OpenSim 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.Collections.Generic;
+using libsecondlife;
+using OpenSim.Framework;
+using OpenSim.Region.Environment.Scenes;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
+{
+    public class SensorRepeat
+    {
+        public AsyncCommandManager m_CmdManager;
+
+        public SensorRepeat(AsyncCommandManager CmdManager)
+        {
+            m_CmdManager = CmdManager;
+        }
+
+        public Dictionary<uint, Dictionary<LLUUID, LSL_Types.list>> SenseEvents =
+            new Dictionary<uint, Dictionary<LLUUID, LSL_Types.list>>();
+        private Object SenseLock = new Object();
+
+        //
+        // SenseRepeater and Sensors
+        //
+        private class SenseRepeatClass
+        {
+            public uint localID;
+            public LLUUID itemID;
+            public double interval;
+            public DateTime next;
+
+            public string name;
+            public LLUUID keyID;
+            public int type;
+            public double range;
+            public double arc;
+            public SceneObjectPart host;
+        }
+
+        private List<SenseRepeatClass> SenseRepeaters = new List<SenseRepeatClass>();
+        private object SenseRepeatListLock = new object();
+
+        public void SetSenseRepeatEvent(uint m_localID, LLUUID m_itemID,
+                                        string name, LLUUID keyID, int type, double range,
+                                        double arc, double sec, SceneObjectPart host)
+        {
+            // Always remove first, in case this is a re-set
+            UnSetSenseRepeaterEvents(m_localID, m_itemID);
+            if (sec == 0) // Disabling timer
+                return;
+
+            // Add to timer
+            SenseRepeatClass ts = new SenseRepeatClass();
+            ts.localID = m_localID;
+            ts.itemID = m_itemID;
+            ts.interval = sec;
+            ts.name = name;
+            ts.keyID = keyID;
+            ts.type = type;
+            ts.range = range;
+            ts.arc = arc;
+            ts.host = host;
+
+            ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
+            lock (SenseRepeatListLock)
+            {
+                SenseRepeaters.Add(ts);
+            }
+        }
+
+        public void UnSetSenseRepeaterEvents(uint m_localID, LLUUID m_itemID)
+        {
+            // Remove from timer
+            lock (SenseRepeatListLock)
+            {
+                List<SenseRepeatClass> NewSensors = new List<SenseRepeatClass>();
+                foreach (SenseRepeatClass ts in SenseRepeaters)
+                {
+                    if (ts.localID != m_localID && ts.itemID != m_itemID)
+                    {
+                        NewSensors.Add(ts);
+                    }
+                }
+                SenseRepeaters.Clear();
+                SenseRepeaters = NewSensors;
+            }
+        }
+
+        public void CheckSenseRepeaterEvents()
+        {
+            // Nothing to do here?
+            if (SenseRepeaters.Count == 0)
+                return;
+
+            lock (SenseRepeatListLock)
+            {
+                // Go through all timers
+                foreach (SenseRepeatClass ts in SenseRepeaters)
+                {
+                    // Time has passed?
+                    if (ts.next.ToUniversalTime() < DateTime.Now.ToUniversalTime())
+                    {
+                        SensorSweep(ts);
+                        // set next interval
+                        ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
+                    }
+                }
+            } // lock
+        }
+
+        public void SenseOnce(uint m_localID, LLUUID m_itemID,
+                              string name, LLUUID keyID, int type,
+                              double range, double arc, SceneObjectPart host)
+        {
+            // Add to timer
+            SenseRepeatClass ts = new SenseRepeatClass();
+            ts.localID = m_localID;
+            ts.itemID = m_itemID;
+            ts.interval = 0;
+            ts.name = name;
+            ts.keyID = keyID;
+            ts.type = type;
+            ts.range = range;
+            ts.arc = arc;
+            ts.host = host;
+            SensorSweep(ts);
+        }
+
+        public LSL_Types.list GetSensorList(uint m_localID, LLUUID m_itemID)
+        {
+            lock (SenseLock)
+            {
+                Dictionary<LLUUID, LSL_Types.list> Obj = null;
+                if (!SenseEvents.TryGetValue(m_localID, out Obj))
+                {
+                    return null;
+                }
+                lock (Obj)
+                {
+                    // Get script
+                    LSL_Types.list SenseList = null;
+                    if (!Obj.TryGetValue(m_itemID, out SenseList))
+                    {
+                        return null;
+                    }
+                    return SenseList;
+                }
+            }
+        }
+
+        private void SensorSweep(SenseRepeatClass ts)
+        {
+            SceneObjectPart SensePoint = ts.host;
+
+            if (SensePoint == null)
+            {
+                return;
+            }
+
+            LLVector3 sensorPos = SensePoint.AbsolutePosition;
+            LLVector3 regionPos = new LLVector3(m_CmdManager.m_ScriptEngine.World.RegionInfo.RegionLocX * Constants.RegionSize, m_CmdManager.m_ScriptEngine.World.RegionInfo.RegionLocY * Constants.RegionSize, 0);
+            LLVector3 fromRegionPos = sensorPos + regionPos;
+
+            LLQuaternion q = SensePoint.RotationOffset;
+            LSL_Types.Quaternion r = new LSL_Types.Quaternion(q.X, q.Y, q.Z, q.W);
+            LSL_Types.Vector3 forward_dir = (new LSL_Types.Vector3(1, 0, 0) * r);
+            double mag_fwd = LSL_Types.Vector3.Mag(forward_dir);
+
+            // Here we should do some smart culling ...
+            // math seems quicker than strings so try that first
+            LSL_Types.list SensedObjects = new LSL_Types.list();
+            LSL_Types.Vector3 ZeroVector = new LSL_Types.Vector3(0, 0, 0);
+
+            foreach (EntityBase ent in m_CmdManager.m_ScriptEngine.World.Entities.Values)
+            {
+                LLVector3 toRegionPos = ent.AbsolutePosition + regionPos;
+                double dis = Math.Abs((double)Util.GetDistanceTo(toRegionPos, fromRegionPos));
+                if (dis <= ts.range)
+                {
+                    // In Range, is it the right Type ?
+                    int objtype = 0;
+
+                    if (m_CmdManager.m_ScriptEngine.World.GetScenePresence(ent.UUID) != null) objtype |= 0x01; // actor
+                    if (ent.Velocity.Equals(ZeroVector))
+                        objtype |= 0x04; // passive non-moving
+                    else
+                        objtype |= 0x02; // active moving
+
+                    SceneObjectPart part = m_CmdManager.m_ScriptEngine.World.GetSceneObjectPart(ent.UUID);
+
+                    if (part != null && part.ContainsScripts()) objtype |= 0x08; // Scripted. It COULD have one hidden ...
+
+                    if (((ts.type & objtype) != 0) || ((ts.type & objtype) == ts.type))
+                    {
+                        // docs claim AGENT|ACTIVE should find agent objects OR active objects
+                        // so the bitwise AND with object type should be non-zero
+
+                        // Right type too, what about the other params , key and name ?
+                        bool keep = true;
+                        if (ts.arc < Math.PI)
+                        {
+                            // not omni-directional. Can you see it ?
+                            // vec forward_dir = llRot2Fwd(llGetRot())
+                            // vec obj_dir = toRegionPos-fromRegionPos
+                            // dot=dot(forward_dir,obj_dir)
+                            // mag_fwd = mag(forward_dir)
+                            // mag_obj = mag(obj_dir)
+                            // ang = acos(dot /(mag_fwd*mag_obj))
+                            double ang_obj = 0;
+                            try
+                            {
+                                LLVector3 diff = toRegionPos - fromRegionPos;
+                                LSL_Types.Vector3 obj_dir = new LSL_Types.Vector3(diff.X, diff.Y, diff.Z);
+                                double dot = LSL_Types.Vector3.Dot(forward_dir, obj_dir);
+                                double mag_obj = LSL_Types.Vector3.Mag(obj_dir);
+                                ang_obj = Math.Acos(dot / (mag_fwd * mag_obj));
+                            }
+                            catch
+                            {
+                            }
+
+                            if (ang_obj > ts.arc) keep = false;
+                        }
+
+                        if (keep && (ts.keyID != LLUUID.Zero) && (ts.keyID != ent.UUID))
+                        {
+                            keep = false;
+                        }
+
+                        if (keep && (ts.name.Length > 0))
+                        {
+                            string avatarname=null;
+                            string objectname=null;
+                            string entname =ent.Name;
+
+                            // try avatar username surname
+                            UserProfileData profile = m_CmdManager.m_ScriptEngine.World.CommsManager.UserService.GetUserProfile(ent.UUID);
+                            if (profile != null)
+                            {
+                               avatarname = profile.FirstName + " " + profile.SurName;
+                            }
+                            // try an scene object
+                            SceneObjectPart SOP = m_CmdManager.m_ScriptEngine.World.GetSceneObjectPart(ent.UUID);
+                            if (SOP != null)
+                            {
+                                objectname = SOP.Name;
+                            }
+
+                            if ((ts.name != entname) && (ts.name != avatarname) && (ts.name != objectname))
+                            {
+                               keep = false;
+                            }
+                        }
+
+                        if (keep == true) SensedObjects.Add(ent.UUID);
+                    }
+                }
+            }
+
+            lock (SenseLock)
+            {
+                // Create object if it doesn't exist
+                if (SenseEvents.ContainsKey(ts.localID) == false)
+                {
+                    SenseEvents.Add(ts.localID, new Dictionary<LLUUID, LSL_Types.list>());
+                }
+                // clear if previous traces exist
+                Dictionary<LLUUID, LSL_Types.list> Obj;
+                SenseEvents.TryGetValue(ts.localID, out Obj);
+                if (Obj.ContainsKey(ts.itemID) == true)
+                    Obj.Remove(ts.itemID);
+
+                // note list may be zero length
+                Obj.Add(ts.itemID, SensedObjects);
+
+                if (SensedObjects.Length == 0)
+                {
+                    // send a "no_sensor"
+                    // Add it to queue
+                    m_CmdManager.m_ScriptEngine.PostScriptEvent(ts.itemID,
+                            new EventParams("no_sensor", new Object[0],
+                            new DetectParams[0]));
+                }
+                else
+                {
+                    DetectParams[] detect =
+                            new DetectParams[SensedObjects.Length];
+
+                    int idx;
+                    for (idx = 0; idx < SensedObjects.Length; idx++)
+                    {
+                        detect[idx] = new DetectParams();
+                        detect[idx].Key=(LLUUID)(SensedObjects.Data[idx]);
+                        detect[idx].Populate(m_CmdManager.m_ScriptEngine.World);
+                    }
+
+                    m_CmdManager.m_ScriptEngine.PostScriptEvent(ts.itemID,
+                            new EventParams("sensor",
+                            new Object[] {
+                            new LSL_Types.LSLInteger(SensedObjects.Length) },
+                            detect));
+                }
+            }
+        }
+
+        public Object[] GetSerializationData(LLUUID itemID)
+        {
+            List<Object> data = new List<Object>();
+
+            foreach (SenseRepeatClass ts in SenseRepeaters)
+            {
+                if (ts.itemID == itemID)
+                {
+                    data.Add(ts.interval);
+                    data.Add(ts.name);
+                    data.Add(ts.keyID);
+                    data.Add(ts.type);
+                    data.Add(ts.range);
+                    data.Add(ts.arc);
+                }
+            }
+            return data.ToArray();
+        }
+
+        public void CreateFromData(uint localID, LLUUID itemID, LLUUID objectID,
+                                   Object[] data)
+        {
+            SceneObjectPart part =
+                m_CmdManager.m_ScriptEngine.World.GetSceneObjectPart(
+                    objectID);
+
+            if (part == null)
+                return;
+
+            int idx = 0;
+
+            while (idx < data.Length)
+            {
+                SenseRepeatClass ts = new SenseRepeatClass();
+
+                ts.localID = localID;
+                ts.itemID = itemID;
+
+                ts.interval = (double)data[idx];
+                ts.name = (string)data[idx+1];
+                ts.keyID = (LLUUID)data[idx+2];
+                ts.type = (int)data[idx+3];
+                ts.range = (double)data[idx+4];
+                ts.arc = (double)data[idx+5];
+                ts.host = part;
+
+                ts.next =
+                    DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
+
+                SenseRepeaters.Add(ts);
+                idx += 6;
+            }
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs
new file mode 100644
index 0000000..36e992b
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs
@@ -0,0 +1,162 @@
+/*
+ * 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 OpenSim 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.Collections;
+using System.Collections.Generic;
+using libsecondlife;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
+{
+    public class Timer
+    {
+        public AsyncCommandManager m_CmdManager;
+
+        public Timer(AsyncCommandManager CmdManager)
+        {
+            m_CmdManager = CmdManager;
+        }
+
+        //
+        // TIMER
+        //
+        private class TimerClass
+        {
+            public uint localID;
+            public LLUUID itemID;
+            //public double interval;
+            public long interval;
+            //public DateTime next;
+            public long next;
+        }
+
+        private List<TimerClass> Timers = new List<TimerClass>();
+        private object TimerListLock = new object();
+
+        public void SetTimerEvent(uint m_localID, LLUUID m_itemID, double sec)
+        {
+            // Always remove first, in case this is a re-set
+            UnSetTimerEvents(m_localID, m_itemID);
+            if (sec == 0) // Disabling timer
+                return;
+
+            // Add to timer
+            TimerClass ts = new TimerClass();
+            ts.localID = m_localID;
+            ts.itemID = m_itemID;
+            ts.interval = Convert.ToInt64(sec * 10000000); // How many 100 nanoseconds (ticks) should we wait
+            //       2193386136332921 ticks
+            //       219338613 seconds
+
+            //ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
+            ts.next = DateTime.Now.Ticks + ts.interval;
+            lock (TimerListLock)
+            {
+                Timers.Add(ts);
+            }
+        }
+
+        public void UnSetTimerEvents(uint m_localID, LLUUID m_itemID)
+        {
+            // Remove from timer
+            lock (TimerListLock)
+            {
+                foreach (TimerClass ts in new ArrayList(Timers))
+                {
+                    if (ts.localID == m_localID && ts.itemID == m_itemID)
+                        Timers.Remove(ts);
+                }
+            }
+        }
+
+        public void CheckTimerEvents()
+        {
+            // Nothing to do here?
+            if (Timers.Count == 0)
+                return;
+
+            lock (TimerListLock)
+            {
+                // Go through all timers
+                foreach (TimerClass ts in Timers)
+                {
+                    // Time has passed?
+                    if (ts.next < DateTime.Now.Ticks)
+                    {
+                        //                        Console.WriteLine("Time has passed: Now: " + DateTime.Now.Ticks + ", Passed: " + ts.next);
+                        // Add it to queue
+                        m_CmdManager.m_ScriptEngine.PostScriptEvent(ts.itemID,
+                                new EventParams("timer", new Object[0],
+                                new DetectParams[0]));
+                        // set next interval
+
+                        //ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
+                        ts.next = DateTime.Now.Ticks + ts.interval;
+                    }
+                }
+            }
+        }
+
+        public Object[] GetSerializationData(LLUUID itemID)
+        {
+            List<Object> data = new List<Object>();
+
+            lock (TimerListLock)
+            {
+                foreach (TimerClass ts in Timers)
+                {
+                    if (ts.itemID == itemID)
+                    {
+                        data.Add(ts.interval);
+                        data.Add(ts.next-DateTime.Now.Ticks);
+                    }
+                }
+            }
+            return data.ToArray();
+        }
+
+        public void CreateFromData(uint localID, LLUUID itemID, LLUUID objectID,
+                                   Object[] data)
+        {
+            int idx = 0;
+
+            while (idx < data.Length)
+            {
+                TimerClass ts = new TimerClass();
+
+                ts.localID = localID;
+                ts.itemID = itemID;
+                ts.interval = (long)data[idx];
+                ts.next = DateTime.Now.Ticks + (long)data[idx+1];
+                idx += 2;
+
+                Timers.Add(ts);
+            }
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/XmlRequest.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/XmlRequest.cs
new file mode 100644
index 0000000..89bf51c
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/XmlRequest.cs
@@ -0,0 +1,117 @@
+/*
+ * 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 OpenSim 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 OpenSim.Region.Environment.Interfaces;
+using OpenSim.Region.Environment.Modules.Scripting.XMLRPC;
+using OpenSim.Region.ScriptEngine.Interfaces;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
+{
+    public class XmlRequest
+    {
+        public AsyncCommandManager m_CmdManager;
+
+        public XmlRequest(AsyncCommandManager CmdManager)
+        {
+            m_CmdManager = CmdManager;
+        }
+
+        public void CheckXMLRPCRequests()
+        {
+            if (m_CmdManager.m_ScriptEngine.World == null)
+                return;
+
+            IXMLRPC xmlrpc = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IXMLRPC>();
+
+            if (xmlrpc != null)
+            {
+                RPCRequestInfo rInfo = xmlrpc.GetNextCompletedRequest();
+
+                while (rInfo != null)
+                {
+                    xmlrpc.RemoveCompletedRequest(rInfo.GetMessageID());
+
+                    //Deliver data to prim's remote_data handler
+                    object[] resobj = new object[]
+                    {
+                        new LSL_Types.LSLInteger(2),
+                        new LSL_Types.LSLString(
+                                rInfo.GetChannelKey().ToString()),
+                        new LSL_Types.LSLString(
+                                rInfo.GetMessageID().ToString()),
+                        new LSL_Types.LSLString(String.Empty),
+                        new LSL_Types.LSLInteger(rInfo.GetIntValue()),
+                        new LSL_Types.LSLString(rInfo.GetStrVal())
+                    };
+                    
+                    foreach (AsyncCommandManager m in m_CmdManager.Managers)
+                    {
+                        if (m.m_ScriptEngine.PostScriptEvent(
+                                rInfo.GetItemID(), new EventParams(
+                                    "remote_data", resobj,
+                                    new DetectParams[0])))
+                            break;
+                    }
+
+                    rInfo = xmlrpc.GetNextCompletedRequest();
+                }
+
+                SendRemoteDataRequest srdInfo = xmlrpc.GetNextCompletedSRDRequest();
+
+                while (srdInfo != null)
+                {
+                    xmlrpc.RemoveCompletedSRDRequest(srdInfo.GetReqID());
+
+                    //Deliver data to prim's remote_data handler
+                    object[] resobj = new object[]
+                    {
+                        new LSL_Types.LSLInteger(3),
+                        new LSL_Types.LSLString(srdInfo.channel.ToString()),
+                        new LSL_Types.LSLString(srdInfo.GetReqID().ToString()),
+                        new LSL_Types.LSLString(String.Empty),
+                        new LSL_Types.LSLInteger(srdInfo.idata),
+                        new LSL_Types.LSLString(srdInfo.sdata)
+                    };
+
+                    foreach (AsyncCommandManager m in m_CmdManager.Managers)
+                    {
+                        if (m.m_ScriptEngine.PostScriptEvent(
+                                srdInfo.m_itemID, new EventParams(
+                                    "remote_data", resobj,
+                                    new DetectParams[0])))
+                            break;
+                    }
+
+                    srdInfo = xmlrpc.GetNextCompletedSRDRequest();
+                }
+            }
+        }
+    }
+}