8 files changed, 438 insertions, 73 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
index 14edde4..993d10f 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
@@ -247,7 +247,58 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             // Remove Sensors
             m_SensorRepeat[engine].UnSetSenseRepeaterEvents(localID, itemID);
+        }
+
+        /// <summary>
+        /// Get the sensor repeat plugin for this script engine.
+        /// </summary>
+        /// <param name="engine"></param>
+        /// <returns></returns>
+        public static SensorRepeat GetSensorRepeatPlugin(IScriptEngine engine)
+        {
+            if (m_SensorRepeat.ContainsKey(engine))
+                return m_SensorRepeat[engine];
+            else
+                return null;
+        }
 
+        /// <summary>
+        /// Get the dataserver plugin for this script engine.
+        /// </summary>
+        /// <param name="engine"></param>
+        /// <returns></returns>
+        public static Dataserver GetDataserverPlugin(IScriptEngine engine)
+        {
+            if (m_Dataserver.ContainsKey(engine))
+                return m_Dataserver[engine];
+            else
+                return null;
+        }
+
+        /// <summary>
+        /// Get the timer plugin for this script engine.
+        /// </summary>
+        /// <param name="engine"></param>
+        /// <returns></returns>
+        public static Timer GetTimerPlugin(IScriptEngine engine)
+        {
+            if (m_Timer.ContainsKey(engine))
+                return m_Timer[engine];
+            else
+                return null;
+        }
+
+        /// <summary>
+        /// Get the listener plugin for this script engine.
+        /// </summary>
+        /// <param name="engine"></param>
+        /// <returns></returns>
+        public static Listener GetListenerPlugin(IScriptEngine engine)
+        {
+            if (m_Listener.ContainsKey(engine))
+                return m_Listener[engine];
+            else
+                return null;
         }
 
         public static Object[] GetSerializationData(IScriptEngine engine, UUID itemID)
@@ -270,7 +321,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 data.AddRange(timers);
             }
 
-            Object[] sensors=m_SensorRepeat[engine].GetSerializationData(itemID);
+            Object[] sensors = m_SensorRepeat[engine].GetSerializationData(itemID);
             if (sensors.Length > 0)
             {
                 data.Add("sensor");
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 0003515..d7a629b 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -2771,64 +2771,69 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            if (Double.IsNaN(rot.x) || Double.IsNaN(rot.y) || Double.IsNaN(rot.z) || Double.IsNaN(rot.s))
-                return;
-            float dist = (float)llVecDist(llGetPos(), pos);
+            Util.FireAndForget(delegate (object x)
+            {
+                if (Double.IsNaN(rot.x) || Double.IsNaN(rot.y) || Double.IsNaN(rot.z) || Double.IsNaN(rot.s))
+                    return;
+                float dist = (float)llVecDist(llGetPos(), pos);
 
-            if (dist > m_ScriptDistanceFactor * 10.0f)
-                return;
+                if (dist > m_ScriptDistanceFactor * 10.0f)
+                    return;
 
-            TaskInventoryDictionary partInventory = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
+                //Clone is thread-safe
+                TaskInventoryDictionary partInventory = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
 
-            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in partInventory)
-            {
-                if (inv.Value.Name == inventory)
+                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in partInventory)
                 {
-                    // make sure we're an object.
-                    if (inv.Value.InvType != (int)InventoryType.Object)
+                    if (inv.Value.Name == inventory)
                     {
-                        llSay(0, "Unable to create requested object. Object is missing from database.");
-                        return;
-                    }
+                        // make sure we're an object.
+                        if (inv.Value.InvType != (int)InventoryType.Object)
+                        {
+                            llSay(0, "Unable to create requested object. Object is missing from database.");
+                            return;
+                        }
 
-                    Vector3 llpos = new Vector3((float)pos.x, (float)pos.y, (float)pos.z);
-                    Vector3 llvel = new Vector3((float)vel.x, (float)vel.y, (float)vel.z);
+                        Vector3 llpos = new Vector3((float)pos.x, (float)pos.y, (float)pos.z);
+                        Vector3 llvel = new Vector3((float)vel.x, (float)vel.y, (float)vel.z);
 
-                    // need the magnitude later
-                    float velmag = (float)Util.GetMagnitude(llvel);
+                        // need the magnitude later
+                        // float velmag = (float)Util.GetMagnitude(llvel);
 
-                    SceneObjectGroup new_group = World.RezObject(m_host, inv.Value, llpos, Rot2Quaternion(rot), llvel, param);
+                        SceneObjectGroup new_group = World.RezObject(m_host, inv.Value, llpos, Rot2Quaternion(rot), llvel, param);
 
-                    // If either of these are null, then there was an unknown error.
-                    if (new_group == null)
-                        continue;
+                        // If either of these are null, then there was an unknown error.
+                        if (new_group == null)
+                            continue;
 
-                    // objects rezzed with this method are die_at_edge by default.
-                    new_group.RootPart.SetDieAtEdge(true);
+                        // objects rezzed with this method are die_at_edge by default.
+                        new_group.RootPart.SetDieAtEdge(true);
 
-                    new_group.ResumeScripts();
+                        new_group.ResumeScripts();
 
-                    m_ScriptEngine.PostObjectEvent(m_host.LocalId, new EventParams(
-                            "object_rez", new Object[] {
-                            new LSL_String(
-                            new_group.RootPart.UUID.ToString()) },
-                            new DetectParams[0]));
+                        m_ScriptEngine.PostObjectEvent(m_host.LocalId, new EventParams(
+                                "object_rez", new Object[] {
+                                new LSL_String(
+                                new_group.RootPart.UUID.ToString()) },
+                                new DetectParams[0]));
 
-                    float groupmass = new_group.GetMass();
+                        float groupmass = new_group.GetMass();
 
-                    if (new_group.RootPart.PhysActor != null && new_group.RootPart.PhysActor.IsPhysical && llvel != Vector3.Zero)
-                    {
-                        //Recoil.
-                        llApplyImpulse(new LSL_Vector(llvel.X * groupmass, llvel.Y * groupmass, llvel.Z * groupmass), 0);
+                        if (new_group.RootPart.PhysActor != null && new_group.RootPart.PhysActor.IsPhysical && llvel != Vector3.Zero)
+                        {
+                            //Recoil.
+                            llApplyImpulse(new LSL_Vector(llvel.X * groupmass, llvel.Y * groupmass, llvel.Z * groupmass), 0);
+                        }
+                        // Variable script delay? (see (http://wiki.secondlife.com/wiki/LSL_Delay)
+                        return;
                     }
-                    // Variable script delay? (see (http://wiki.secondlife.com/wiki/LSL_Delay)
-                    ScriptSleep((int)((groupmass * velmag) / 10));
-                    ScriptSleep(100);
-                    return;
                 }
-            }
 
-            llSay(0, "Could not find object " + inventory);
+                llSay(0, "Could not find object " + inventory);
+            });
+
+            //ScriptSleep((int)((groupmass * velmag) / 10));
+            ScriptSleep(100);
         }
 
         public void llRezObject(string inventory, LSL_Vector pos, LSL_Vector vel, LSL_Rotation rot, int param)
@@ -3820,7 +3825,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             List<String> nametable = new List<String>();
             World.ForEachRootScenePresence(delegate(ScenePresence presence)
             {
-                if (presence.ParentID != 0 && m_host.ParentGroup.HasChildPrim(presence.ParentID))
+                SceneObjectPart sitPart = presence.ParentPart;
+                if (sitPart != null && m_host.ParentGroup.HasChildPrim(sitPart.LocalId))
                     nametable.Add(presence.ControllingClient.Name);
             });
 
@@ -4308,7 +4314,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             if (m_host.RegionHandle == presence.RegionHandle)
             {
-                Dictionary<UUID, string> animationstateNames = AnimationSet.Animations.AnimStateNames;
+                Dictionary<UUID, string> animationstateNames = DefaultAvatarAnimations.AnimStateNames;
 
                 if (presence != null)
                 {
@@ -4388,22 +4394,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                 // Find pushee position
                 // Pushee Linked?
-                if (pusheeav.ParentID != 0)
-                {
-                    SceneObjectPart parentobj = World.GetSceneObjectPart(pusheeav.ParentID);
-                    if (parentobj != null)
-                    {
-                        PusheePos = parentobj.AbsolutePosition;
-                    }
-                    else
-                    {
-                        PusheePos = pusheeav.AbsolutePosition;
-                    }
-                }
+                SceneObjectPart sitPart = pusheeav.ParentPart;
+                if (sitPart != null)
+                    PusheePos = sitPart.AbsolutePosition;
                 else
-                {
                     PusheePos = pusheeav.AbsolutePosition;
-                }
             }
 
             if (!pusheeIsAvatar)
@@ -5598,14 +5593,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     flags |= ScriptBaseClass.AGENT_IN_AIR;
             }
 
-             if (agent.ParentID != 0)
+             if (agent.ParentPart != null)
              {
                  flags |= ScriptBaseClass.AGENT_ON_OBJECT;
                  flags |= ScriptBaseClass.AGENT_SITTING;
              }
 
              if (agent.Animator.Animations.DefaultAnimation.AnimID
-                == AnimationSet.Animations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
+                == DefaultAvatarAnimations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
              {
                  flags |= ScriptBaseClass.AGENT_SITTING;
              }
@@ -7687,7 +7682,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             World.ForEachRootScenePresence(delegate(ScenePresence presence)
             {
                 if (presence.ParentID != 0 && m_host.ParentGroup.HasChildPrim(presence.ParentID))
-                        avatarCount++;
+                    avatarCount++;
             });
 
             return m_host.ParentGroup.PrimCount + avatarCount;
@@ -7719,7 +7714,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     LSL_Vector lower;
                     LSL_Vector upper;
                     if (presence.Animator.Animations.DefaultAnimation.AnimID
-                        == AnimationSet.Animations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
+                        == DefaultAvatarAnimations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
                     {
                         // This is for ground sitting avatars
                         float height = presence.Appearance.AvatarHeight / 2.66666667f;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
index d4facdd..7c07e15 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
@@ -116,6 +116,159 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             wComm.DeliverMessage(ChatTypeEnum.Shout, ScriptBaseClass.DEBUG_CHANNEL, m_host.Name, m_host.UUID, message);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="fname">The name of the function to invoke</param>
+        /// <param name="parms">List of parameters</param>
+        /// <returns>string result of the invocation</returns>
+        public void modInvokeN(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(string))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            modInvoke(fname,parms);
+        }
+
+        public LSL_String modInvokeS(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(string))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            string result = (string)modInvoke(fname,parms);
+            return new LSL_String(result);
+        }
+
+        public LSL_Integer modInvokeI(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(int))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            int result = (int)modInvoke(fname,parms);
+            return new LSL_Integer(result);
+        }
+        
+        public LSL_Float modInvokeF(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(float))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            float result = (float)modInvoke(fname,parms);
+            return new LSL_Float(result);
+        }
+
+        public LSL_Key modInvokeK(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(UUID))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            UUID result = (UUID)modInvoke(fname,parms);
+            return new LSL_Key(result.ToString());
+        }
+
+        public LSL_Vector modInvokeV(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(OpenMetaverse.Vector3))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            OpenMetaverse.Vector3 result = (OpenMetaverse.Vector3)modInvoke(fname,parms);
+            return new LSL_Vector(result.X,result.Y,result.Z);
+        }
+
+        public LSL_Rotation modInvokeR(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(OpenMetaverse.Quaternion))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            OpenMetaverse.Quaternion result = (OpenMetaverse.Quaternion)modInvoke(fname,parms);
+            return new LSL_Rotation(result.X,result.Y,result.Z,result.W);
+        }
+
+        public LSL_List modInvokeL(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(object[]))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            object[] result = (object[])modInvoke(fname,parms);
+            object[] llist = new object[result.Length];
+            for (int i = 0; i < result.Length; i++)
+            {
+                if (result[i] is string)
+                    llist[i] = new LSL_String((string)result[i]);
+                else if (result[i] is int)
+                    llist[i] = new LSL_Integer((int)result[i]);
+                else if (result[i] is float)
+                    llist[i] = new LSL_Float((float)result[i]);
+                else if (result[i] is OpenMetaverse.Vector3)
+                {
+                    OpenMetaverse.Vector3 vresult = (OpenMetaverse.Vector3)result[i];
+                    llist[i] = new LSL_Vector(vresult.X,vresult.Y,vresult.Z);
+                }
+                else if (result[i] is OpenMetaverse.Quaternion)
+                {
+                    OpenMetaverse.Quaternion qresult = (OpenMetaverse.Quaternion)result[i];
+                    llist[i] = new LSL_Rotation(qresult.X,qresult.Y,qresult.Z,qresult.W);
+                }
+                else
+                {
+                    MODError(String.Format("unknown list element returned by {0}",fname));
+                }
+            }
+
+            return new LSL_List(llist);
+        }
+
+        /// <summary>
+        /// Invokes a preregistered function through the ScriptModuleComms class
+        /// </summary>
+        /// <param name="fname">The name of the function to invoke</param>
+        /// <param name="fname">List of parameters</param>
+        /// <returns>string result of the invocation</returns>
+        protected object modInvoke(string fname, params object[] parms)
+        {
+            if (!m_MODFunctionsEnabled)
+            {
+                MODShoutError("Module command functions not enabled");
+                return "";
+            }
+
+            Type[] signature = m_comms.LookupTypeSignature(fname);
+            if (signature.Length != parms.Length)
+                MODError(String.Format("wrong number of parameters to function {0}",fname));
+            
+            object[] convertedParms = new object[parms.Length];
+            for (int i = 0; i < parms.Length; i++)
+                convertedParms[i] = ConvertFromLSL(parms[i],signature[i]);
+
+            // now call the function, the contract with the function is that it will always return
+            // non-null but don't trust it completely
+            try 
+            {
+                object result = m_comms.InvokeOperation(m_host.UUID, m_itemID, fname, convertedParms);
+                if (result != null)
+                    return result;
+
+                MODError(String.Format("Invocation of {0} failed; null return value",fname));
+            }
+            catch (Exception e)
+            {
+                MODError(String.Format("Invocation of {0} failed; {1}",fname,e.Message));
+            }
+
+            return null;
+        }
+        
+        /// <summary>
+        /// Send a command to functions registered on an event
+        /// </summary>
         public string modSendCommand(string module, string command, string k)
         {
             if (!m_MODFunctionsEnabled)
@@ -130,5 +283,101 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             return req.ToString();
         }
+
+        /// <summary>
+        /// </summary>
+        protected object ConvertFromLSL(object lslparm, Type type)
+        {
+            // ---------- String ----------
+            if (lslparm is LSL_String)
+            {
+                if (type == typeof(string))
+                    return (string)(LSL_String)lslparm;
+
+                // Need to check for UUID since keys are often treated as strings
+                if (type == typeof(UUID))
+                    return new UUID((string)(LSL_String)lslparm);
+            }
+
+            // ---------- Integer ----------
+            else if (lslparm is LSL_Integer)
+            {
+                if (type == typeof(int))
+                    return (int)(LSL_Integer)lslparm;
+            }
+
+            // ---------- Float ----------
+            else if (lslparm is LSL_Float)
+            {
+                if (type == typeof(float))
+                    return (float)(LSL_Float)lslparm;
+            }
+
+            // ---------- Key ----------
+            else if (lslparm is LSL_Key)
+            {
+                if (type == typeof(UUID))
+                    return new UUID((LSL_Key)lslparm);
+            }
+
+            // ---------- Rotation ----------
+            else if (lslparm is LSL_Rotation)
+            {
+                if (type == typeof(OpenMetaverse.Quaternion))
+                {
+                    LSL_Rotation rot = (LSL_Rotation)lslparm;
+                    return new OpenMetaverse.Quaternion((float)rot.x,(float)rot.y,(float)rot.z,(float)rot.s);
+                }
+            }
+
+            // ---------- Vector ----------
+            else if (lslparm is LSL_Vector)
+            {
+                if (type == typeof(OpenMetaverse.Vector3))
+                {
+                    LSL_Vector vect = (LSL_Vector)lslparm;
+                    return new OpenMetaverse.Vector3((float)vect.x,(float)vect.y,(float)vect.z);
+                }
+            }
+
+            // ---------- List ----------
+            else if (lslparm is LSL_List)
+            {
+                if (type == typeof(object[]))
+                {
+                    object[] plist = (lslparm as LSL_List).Data;
+                    object[] result = new object[plist.Length];
+                    for (int i = 0; i < plist.Length; i++)
+                    {
+                        if (plist[i] is LSL_String)
+                            result[i] = (string)(LSL_String)plist[i];                            
+                        else if (plist[i] is LSL_Integer)
+                            result[i] = (int)(LSL_Integer)plist[i];
+                        else if (plist[i] is LSL_Float)
+                            result[i] = (float)(LSL_Float)plist[i];
+                        else if (plist[i] is LSL_Key)
+                            result[i] = new UUID((LSL_Key)plist[i]);
+                        else if (plist[i] is LSL_Rotation)
+                        {
+                            LSL_Rotation rot = (LSL_Rotation)plist[i];
+                            result[i] = new OpenMetaverse.Quaternion((float)rot.x,(float)rot.y,(float)rot.z,(float)rot.s);
+                        }
+                        else if (plist[i] is LSL_Vector)
+                        {
+                            LSL_Vector vect = (LSL_Vector)plist[i];
+                            result[i] = new OpenMetaverse.Vector3((float)vect.x,(float)vect.y,(float)vect.z);
+                        }
+                        else
+                            MODError("unknown LSL list element type");
+                    }
+
+                    return result;
+                }
+            }
+            
+            MODError(String.Format("parameter type mismatch; expecting {0}",type.Name));
+            return null;
+        }
+
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 8edd146..2ecd890 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -2093,6 +2093,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return HomeURI;
         }
 
+        public string osGetGridGatekeeperURI()
+        {
+            CheckThreatLevel(ThreatLevel.Moderate, "osGetGridGatekeeperURI");
+            m_host.AddScriptLPS(1);
+
+            string gatekeeperURI = String.Empty;
+            IConfigSource config = m_ScriptEngine.ConfigSource;
+
+            if (config.Configs["GridService"] != null)
+                gatekeeperURI = config.Configs["GridService"].GetString("Gatekeeper", gatekeeperURI);
+
+            return gatekeeperURI;
+        }
+
         public string osGetGridCustom(string key)
         {
             CheckThreatLevel(ThreatLevel.Moderate, "osGetGridCustom");
@@ -2943,5 +2957,28 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             return date.ToString("yyyy-MM-ddTHH:mm:ss.fffffffZ");
         }
+
+        /// <summary>
+        /// Get the description from an inventory item
+        /// </summary>
+        /// <param name="inventoryName"></param>
+        /// <returns>Item description</returns>  
+        public LSL_String osGetInventoryDesc(string item)
+        {
+            m_host.AddScriptLPS(1);
+
+            lock (m_host.TaskInventory)
+            {
+                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                {
+                    if (inv.Value.Name == item)
+                    {
+                        return inv.Value.Description.ToString();
+                    }
+                }
+            }
+
+            return String.Empty;
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Dataserver.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Dataserver.cs
index 7fa19b1..9f78a49 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Dataserver.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Dataserver.cs
@@ -38,6 +38,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
     {
         public AsyncCommandManager m_CmdManager;
 
+        public int DataserverRequestsCount
+        {
+            get
+            {
+                lock (DataserverRequests)
+                    return DataserverRequests.Count;
+            }
+        }
+
         private Dictionary<string, DataserverRequest> DataserverRequests =
                 new Dictionary<string, DataserverRequest>();
 
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Listener.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Listener.cs
index 740816f..93e0261 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Listener.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Listener.cs
@@ -42,22 +42,29 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
 
         public AsyncCommandManager m_CmdManager;
 
+        private IWorldComm m_commsPlugin;
+
+        public int ListenerCount
+        {
+            get { return m_commsPlugin.ListenerCount; }
+        }
+
         public Listener(AsyncCommandManager CmdManager)
         {
             m_CmdManager = CmdManager;
+            m_commsPlugin = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
         }
 
         public void CheckListeners()
         {
             if (m_CmdManager.m_ScriptEngine.World == null)
                 return;
-            IWorldComm comms = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
 
-            if (comms != null)
+            if (m_commsPlugin != null)
             {
-                while (comms.HasMessages())
+                while (m_commsPlugin.HasMessages())
                 {
-                    ListenerInfo lInfo = (ListenerInfo)comms.GetNextMessage();
+                    ListenerInfo lInfo = (ListenerInfo)m_commsPlugin.GetNextMessage();
 
                     //Deliver data to prim's listen handler
                     object[] resobj = new object[]
@@ -81,17 +88,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
 
         public Object[] GetSerializationData(UUID itemID)
         {
-            IWorldComm comms = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
-
-            return comms.GetSerializationData(itemID);
+            return m_commsPlugin.GetSerializationData(itemID);
         }
 
         public void CreateFromData(uint localID, UUID itemID, UUID hostID,
                 Object[] data)
         {
-            IWorldComm comms = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
-
-            comms.CreateFromData(localID, itemID, hostID, data);
+            m_commsPlugin.CreateFromData(localID, itemID, hostID, data);
         }
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
index fbb7c39..1c272f8 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
@@ -44,6 +44,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
 
         public AsyncCommandManager m_CmdManager;
 
+        /// <summary>
+        /// Number of sensors active.
+        /// </summary>
+        public int SensorsCount
+        {
+            get
+            {
+                lock (SenseRepeatListLock)
+                    return SenseRepeaters.Count;
+            }
+        }
+
         public SensorRepeat(AsyncCommandManager CmdManager)
         {
             m_CmdManager = CmdManager;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs
index eeb59d9..bc63030 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs
@@ -37,6 +37,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
     {
         public AsyncCommandManager m_CmdManager;
 
+        public int TimersCount
+        {
+            get
+            {
+                lock (TimerListLock)
+                    return Timers.Count;
+            }
+        }
+
         public Timer(AsyncCommandManager CmdManager)
         {
             m_CmdManager = CmdManager;