8 files changed, 222 insertions, 104 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 8e73eb1..3a7eb32 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -11182,19 +11182,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                 break;
                             // For the following 8 see the Object version below
                             case ScriptBaseClass.OBJECT_RUNNING_SCRIPT_COUNT:
-                                ret.Add(new LSL_Integer(0));
+                                ret.Add(new LSL_Integer(av.RunningScriptCount()));
                                 break;
                             case ScriptBaseClass.OBJECT_TOTAL_SCRIPT_COUNT:
-                                ret.Add(new LSL_Integer(0));
+                                ret.Add(new LSL_Integer(av.ScriptCount()));
                                 break;
                             case ScriptBaseClass.OBJECT_SCRIPT_MEMORY:
-                                ret.Add(new LSL_Integer(0));
+                                ret.Add(new LSL_Integer(av.RunningScriptCount() * 16384));
                                 break;
                             case ScriptBaseClass.OBJECT_SCRIPT_TIME:
-                                ret.Add(new LSL_Float(0));
+                                ret.Add(new LSL_Float(av.ScriptExecutionTime() / 1000.0f));
                                 break;
                             case ScriptBaseClass.OBJECT_PRIM_EQUIVALENCE:
-                                ret.Add(new LSL_Integer(0));
+                                ret.Add(new LSL_Integer(1));
                                 break;
                             case ScriptBaseClass.OBJECT_SERVER_COST:
                                 ret.Add(new LSL_Float(0));
@@ -11246,43 +11246,48 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             case ScriptBaseClass.OBJECT_CREATOR:
                                 ret.Add(new LSL_String(obj.CreatorID.ToString()));
                                 break;
-                            // The following 8 I have intentionaly coded to return zero. They are part of
-                            // "Land Impact" calculations. These calculations are probably not applicable
-                            // to OpenSim, required figures (cpu/memory usage) are not currently tracked
-                            // I have intentionally left these all at zero rather than return possibly
-                            // missleading numbers
                             case ScriptBaseClass.OBJECT_RUNNING_SCRIPT_COUNT:
-                                // in SL this currently includes crashed scripts
-                                ret.Add(new LSL_Integer(0));
+                                ret.Add(new LSL_Integer(obj.ParentGroup.RunningScriptCount()));
                                 break;
                             case ScriptBaseClass.OBJECT_TOTAL_SCRIPT_COUNT:
-                                ret.Add(new LSL_Integer(0));
+                                ret.Add(new LSL_Integer(obj.ParentGroup.ScriptCount()));
                                 break;
                             case ScriptBaseClass.OBJECT_SCRIPT_MEMORY:
                                 // The value returned in SL for mono scripts is 65536 * number of active scripts
-                                ret.Add(new LSL_Integer(0));
+                                // and 16384 * number of active scripts for LSO. since llGetFreememory
+                                // is coded to give the LSO value use it here
+                                ret.Add(new LSL_Integer(obj.ParentGroup.RunningScriptCount() * 16384));
                                 break;
                             case ScriptBaseClass.OBJECT_SCRIPT_TIME:
-                                // Average cpu time per simulator frame expended on all scripts in the objetc
-                                ret.Add(new LSL_Float(0));
+                                // Average cpu time in seconds per simulator frame expended on all scripts in the object
+                                ret.Add(new LSL_Float(obj.ParentGroup.ScriptExecutionTime() / 1000.0f));
                                 break;
                             case ScriptBaseClass.OBJECT_PRIM_EQUIVALENCE:
                                 // according to the SL wiki A prim or linkset will have prim
                                 // equivalent of the number of prims in a linkset if it does not
                                 // contain a mesh anywhere in the link set or is not a normal prim
                                 // The value returned in SL for normal prims is prim count
-                                ret.Add(new LSL_Integer(0));
+                                ret.Add(new LSL_Integer(obj.ParentGroup.PrimCount));
                                 break;
+                            // The following 3 costs I have intentionaly coded to return zero. They are part of
+                            // "Land Impact" calculations. These calculations are probably not applicable
+                            // to OpenSim and are not yet complete in SL
                             case ScriptBaseClass.OBJECT_SERVER_COST:
-                                // The value returned in SL for normal prims is prim count
+                                // The linden calculation is here
+                                // http://wiki.secondlife.com/wiki/Mesh/Mesh_Server_Weight
+                                // The value returned in SL for normal prims looks like the prim count
                                 ret.Add(new LSL_Float(0));
                                 break;
                             case ScriptBaseClass.OBJECT_STREAMING_COST:
-                                // The value returned in SL for normal prims is prim count * 0.06
+                                // The linden calculation is here
+                                // http://wiki.secondlife.com/wiki/Mesh/Mesh_Streaming_Cost
+                                // The value returned in SL for normal prims looks like the prim count * 0.06
                                 ret.Add(new LSL_Float(0));
                                 break;
                             case ScriptBaseClass.OBJECT_PHYSICS_COST:
-                                // The value returned in SL for normal prims is prim count
+                                // The linden calculation is here
+                                // http://wiki.secondlife.com/wiki/Mesh/Mesh_physics
+                                // The value returned in SL for normal prims looks like the prim count
                                 ret.Add(new LSL_Float(0));
                                 break;
                             default:
@@ -12099,35 +12104,50 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return 1;
         }
 
-        #region Not Implemented
-        //
-        // Listing the unimplemented lsl functions here, please move
-        // them from this region as they are completed
-        //
+        public LSL_Integer llGetMemoryLimit()
+        {
+            m_host.AddScriptLPS(1);
+            // The value returned for LSO scripts in SL
+            return 16384;
+        }
 
-        public void llGetEnv(LSL_String name)
+        public LSL_Integer llSetMemoryLimit(LSL_Integer limit)
         {
             m_host.AddScriptLPS(1);
-            NotImplemented("llGetEnv");
+            // Treat as an LSO script
+            return ScriptBaseClass.FALSE;
         }
 
-        public void llGetSPMaxMemory()
+        public LSL_Integer llGetSPMaxMemory()
         {
             m_host.AddScriptLPS(1);
-            NotImplemented("llGetSPMaxMemory");
+            // The value returned for LSO scripts in SL
+            return 16384;
         }
 
         public virtual LSL_Integer llGetUsedMemory()
         {
             m_host.AddScriptLPS(1);
-            NotImplemented("llGetUsedMemory");
-            return 0;
+            // The value returned for LSO scripts in SL
+            return 16384;
         }
 
         public void llScriptProfiler(LSL_Integer flags)
         {
             m_host.AddScriptLPS(1);
-            //NotImplemented("llScriptProfiler");
+            // This does nothing for LSO scripts in SL
+        }
+
+        #region Not Implemented
+        //
+        // Listing the unimplemented lsl functions here, please move
+        // them from this region as they are completed
+        //
+
+        public void llGetEnv(LSL_String name)
+        {
+            m_host.AddScriptLPS(1);
+            NotImplemented("llGetEnv");
         }
 
         public void llSetSoundQueueing(int queue)
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 0dc2aa2..df49fd7 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -1186,12 +1186,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             CheckThreatLevel(ThreatLevel.High, "osSetRegionWaterHeight");
 
             m_host.AddScriptLPS(1);
-            //Check to make sure that the script's owner is the estate manager/master
-            //World.Permissions.GenericEstatePermission(
-            if (World.Permissions.IsGod(m_host.OwnerID))
-            {
-                World.EventManager.TriggerRequestChangeWaterHeight((float)height);
-            }
+
+            World.EventManager.TriggerRequestChangeWaterHeight((float)height);
         }
 
         /// <summary>
@@ -1202,27 +1198,23 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <param name="sunHour">The "Sun Hour" that is desired, 0...24, with 0 just after SunRise</param>
         public void osSetRegionSunSettings(bool useEstateSun, bool sunFixed, double sunHour)
         {
-            CheckThreatLevel(ThreatLevel.Nuisance, "osSetRegionSunSettings");
+            CheckThreatLevel(ThreatLevel.High, "osSetRegionSunSettings");
 
             m_host.AddScriptLPS(1);
-            //Check to make sure that the script's owner is the estate manager/master
-            //World.Permissions.GenericEstatePermission(
-            if (World.Permissions.IsGod(m_host.OwnerID))
-            {
-                while (sunHour > 24.0)
-                    sunHour -= 24.0;
 
-                while (sunHour < 0)
-                    sunHour += 24.0;
+            while (sunHour > 24.0)
+                sunHour -= 24.0;
 
+            while (sunHour < 0)
+                sunHour += 24.0;
 
-                World.RegionInfo.RegionSettings.UseEstateSun = useEstateSun;
-                World.RegionInfo.RegionSettings.SunPosition  = sunHour + 6; // LL Region Sun Hour is 6 to 30
-                World.RegionInfo.RegionSettings.FixedSun     = sunFixed;
-                World.RegionInfo.RegionSettings.Save();
+            World.RegionInfo.RegionSettings.UseEstateSun = useEstateSun;
+            World.RegionInfo.RegionSettings.SunPosition  = sunHour + 6; // LL Region Sun Hour is 6 to 30
+            World.RegionInfo.RegionSettings.FixedSun     = sunFixed;
+            World.RegionInfo.RegionSettings.Save();
 
-                World.EventManager.TriggerEstateToolsSunUpdate(World.RegionInfo.RegionHandle, sunFixed, useEstateSun, (float)sunHour);
-            }
+            World.EventManager.TriggerEstateToolsSunUpdate(
+                World.RegionInfo.RegionHandle, sunFixed, useEstateSun, (float)sunHour);
         }
 
         /// <summary>
@@ -1232,26 +1224,23 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <param name="sunHour">The "Sun Hour" that is desired, 0...24, with 0 just after SunRise</param>
         public void osSetEstateSunSettings(bool sunFixed, double sunHour)
         {
-            CheckThreatLevel(ThreatLevel.Nuisance, "osSetEstateSunSettings");
+            CheckThreatLevel(ThreatLevel.High, "osSetEstateSunSettings");
 
             m_host.AddScriptLPS(1);
-            //Check to make sure that the script's owner is the estate manager/master
-            //World.Permissions.GenericEstatePermission(
-            if (World.Permissions.IsGod(m_host.OwnerID))
-            {
-                while (sunHour > 24.0)
-                    sunHour -= 24.0;
 
-                while (sunHour < 0)
-                    sunHour += 24.0;
+            while (sunHour > 24.0)
+                sunHour -= 24.0;
 
-                World.RegionInfo.EstateSettings.UseGlobalTime = !sunFixed;
-                World.RegionInfo.EstateSettings.SunPosition = sunHour;
-                World.RegionInfo.EstateSettings.FixedSun = sunFixed;
-                World.RegionInfo.EstateSettings.Save();
+            while (sunHour < 0)
+                sunHour += 24.0;
 
-                World.EventManager.TriggerEstateToolsSunUpdate(World.RegionInfo.RegionHandle, sunFixed, World.RegionInfo.RegionSettings.UseEstateSun, (float)sunHour);
-            }
+            World.RegionInfo.EstateSettings.UseGlobalTime = !sunFixed;
+            World.RegionInfo.EstateSettings.SunPosition = sunHour;
+            World.RegionInfo.EstateSettings.FixedSun = sunFixed;
+            World.RegionInfo.EstateSettings.Save();
+
+            World.EventManager.TriggerEstateToolsSunUpdate(
+                World.RegionInfo.RegionHandle, sunFixed, World.RegionInfo.RegionSettings.UseEstateSun, (float)sunHour);
         }
 
         /// <summary>
@@ -2555,7 +2544,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void osNpcStopMoveToTarget(LSL_Key npc)
         {
-            CheckThreatLevel(ThreatLevel.VeryLow, "osNpcStopMoveTo");
+            CheckThreatLevel(ThreatLevel.High, "osNpcStopMoveToTarget");
             m_host.AddScriptLPS(1);
 
             INPCModule module = World.RequestModuleInterface<INPCModule>();
@@ -3095,5 +3084,60 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             return ScriptBaseClass.TRUE;
         }
+
+        /// <summary>
+        /// Sets terrain estate texture
+        /// </summary>
+        /// <param name="level"></param>
+        /// <param name="texture"></param>
+        /// <returns></returns>
+        public void osSetTerrainTexture(int level, LSL_Key texture)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osSetTerrainTexture");
+
+            m_host.AddScriptLPS(1);
+            //Check to make sure that the script's owner is the estate manager/master
+            //World.Permissions.GenericEstatePermission(
+            if (World.Permissions.IsGod(m_host.OwnerID))
+            {
+                if (level < 0 || level > 3)
+                    return;
+
+                UUID textureID = new UUID();
+                if (!UUID.TryParse(texture, out textureID))
+                    return;
+
+                // estate module is required
+                IEstateModule estate = World.RequestModuleInterface<IEstateModule>();
+                if (estate != null)
+                    estate.setEstateTerrainBaseTexture(level, textureID);
+            }
+        }
+
+        /// <summary>
+        /// Sets terrain heights of estate
+        /// </summary>
+        /// <param name="corner"></param>
+        /// <param name="low"></param>
+        /// <param name="high"></param>
+        /// <returns></returns>
+        public void osSetTerrainTextureHeight(int corner, double low, double high)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osSetTerrainTextureHeight");
+
+            m_host.AddScriptLPS(1);
+            //Check to make sure that the script's owner is the estate manager/master
+            //World.Permissions.GenericEstatePermission(
+            if (World.Permissions.IsGod(m_host.OwnerID))
+            {
+                if (corner < 0 || corner > 3)
+                    return;
+
+                // estate module is required
+                IEstateModule estate = World.RequestModuleInterface<IEstateModule>();
+                if (estate != null)
+                    estate.setEstateTerrainTextureHeights(corner, (float)low, (float)high);
+            }
+        }
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
index 5c528977..eab6851 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
@@ -149,7 +149,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
       LSL_Rotation llGetLocalRot();
          LSL_Float llGetMass();
          LSL_Float llGetMassMKS();
-      void llGetNextEmail(string address, string subject);
+       LSL_Integer llGetMemoryLimit();
+              void llGetNextEmail(string address, string subject);
         LSL_String llGetNotecardLine(string name, int line);
            LSL_Key llGetNumberOfNotecardLines(string name);
        LSL_Integer llGetNumberOfPrims();
@@ -187,6 +188,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         LSL_String llGetScriptName();
        LSL_Integer llGetScriptState(string name);
         LSL_String llGetSimulatorHostname();
+       LSL_Integer llGetSPMaxMemory();
        LSL_Integer llGetStartParameter();
        LSL_Integer llGetStatus(int status);
         LSL_String llGetSubString(string src, int start, int end);
@@ -322,6 +324,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
               void llSay(int channelID, string text);
               void llScaleTexture(double u, double v, int face);
        LSL_Integer llScriptDanger(LSL_Vector pos);
+              void llScriptProfiler(LSL_Integer flag);
            LSL_Key llSendRemoteData(string channel, string dest, int idata, string sdata);
               void llSensor(string name, string id, int type, double range, double arc);
               void llSensorRemove();
@@ -345,6 +348,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
               void llSetLinkTexture(int linknumber, string texture, int face);
               void llSetLinkTextureAnim(int linknum, int mode, int face, int sizex, int sizey, double start, double length, double rate);
               void llSetLocalRot(LSL_Rotation rot);
+       LSL_Integer llSetMemoryLimit(LSL_Integer limit);
               void llSetObjectDesc(string desc);
               void llSetObjectName(string name);
               void llSetObjectPermMask(int mask, int value);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
index 444a681..2fcc443 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
@@ -234,5 +234,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
 
         LSL_Integer osInviteToGroup(LSL_Key agentId);
         LSL_Integer osEjectFromGroup(LSL_Key agentId);
+
+        void osSetTerrainTexture(int level, LSL_Key texture);
+        void osSetTerrainTextureHeight(int corner, double low, double high);
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index 6246b57..23b4336 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -383,6 +383,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int PRIM_SCULPT_FLAG_INVERT = 64;
         public const int PRIM_SCULPT_FLAG_MIRROR = 128;
 
+        public const int PROFILE_NONE = 0;
+        public const int PROFILE_SCRIPT_MEMORY = 1;
+
         public const int MASK_BASE = 0;
         public const int MASK_OWNER = 1;
         public const int MASK_GROUP = 2;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
index 70c5fcd..9446099 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
@@ -586,6 +586,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llGetMassMKS();
         }
 
+        public LSL_Integer llGetMemoryLimit()
+        {
+            return m_LSL_Functions.llGetMemoryLimit();
+        }
+
         public void llGetNextEmail(string address, string subject)
         {
             m_LSL_Functions.llGetNextEmail(address, subject);
@@ -776,6 +781,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llGetSimulatorHostname();
         }
 
+        public LSL_Integer llGetSPMaxMemory()
+        {
+            return m_LSL_Functions.llGetSPMaxMemory();
+        }
+
         public LSL_Integer llGetStartParameter()
         {
             return m_LSL_Functions.llGetStartParameter();
@@ -1445,6 +1455,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llScriptDanger(pos);
         }
 
+        public void llScriptProfiler(LSL_Integer flags)
+        {
+            m_LSL_Functions.llScriptProfiler(flags);
+        }
+
         public LSL_Key llSendRemoteData(string channel, string dest, int idata, string sdata)
         {
             return m_LSL_Functions.llSendRemoteData(channel, dest, idata, sdata);
@@ -1555,6 +1570,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_LSL_Functions.llSetLocalRot(rot);
         }
 
+        public LSL_Integer llSetMemoryLimit(LSL_Integer limit)
+        {
+            return m_LSL_Functions.llSetMemoryLimit(limit);
+        }
+
         public void llSetObjectDesc(string desc)
         {
             m_LSL_Functions.llSetObjectDesc(desc);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
index 680cefb4..b94b9bf 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
@@ -878,5 +878,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         {
             return m_OSSL_Functions.osEjectFromGroup(agentId);
         }
+
+        public void osSetTerrainTexture(int level, LSL_Key texture)
+        {
+            m_OSSL_Functions.osSetTerrainTexture(level, texture);
+        }
+
+        public void osSetTerrainTextureHeight(int corner, double low, double high)
+        {
+            m_OSSL_Functions.osSetTerrainTextureHeight(corner, low, high);
+        }
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index 1e0f01f..bfe7418 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -1997,45 +1997,59 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     if (!topScripts.ContainsKey(si.LocalID))
                         topScripts[si.RootLocalID] = 0;
 
-//                    long ticksElapsed = tickNow - si.MeasurementPeriodTickStart;
-//                    float framesElapsed = ticksElapsed / (18.1818 * TimeSpan.TicksPerMillisecond);
-
-                    // Execution time of the script adjusted by it's measurement period to make scripts started at
-                    // different times comparable.
-//                    float adjustedExecutionTime
-//                        = (float)si.MeasurementPeriodExecutionTime
-//                            / ((float)(tickNow - si.MeasurementPeriodTickStart) / ScriptInstance.MaxMeasurementPeriod)
-//                            / TimeSpan.TicksPerMillisecond;
-
-                    long ticksElapsed = tickNow - si.MeasurementPeriodTickStart;
-
-                    // Avoid divide by zerp
-                    if (ticksElapsed == 0)
-                        ticksElapsed = 1;
+                    topScripts[si.RootLocalID] += CalculateAdjustedExectionTime(si, tickNow);
+                }
+            }
 
-                    // Scale execution time to the ideal 55 fps frame time for these reasons.
-                    //
-                    // 1) XEngine does not execute scripts per frame, unlike other script engines.  Hence, there is no
-                    // 'script execution time per frame', which is the original purpose of this value.
-                    //
-                    // 2) Giving the raw execution times is misleading since scripts start at different times, making
-                    // it impossible to compare scripts.
-                    //
-                    // 3) Scaling the raw execution time to the time that the script has been running is better but
-                    // is still misleading since a script that has just been rezzed may appear to have been running
-                    // for much longer.
-                    //
-                    // 4) Hence, we scale execution time to an idealised frame time (55 fps).  This is also not perfect
-                    // since the figure does not represent actual execution time and very hard running scripts will
-                    // never exceed 18ms (though this is a very high number for script execution so is a warning sign).
-                    float adjustedExecutionTime
-                        = ((float)si.MeasurementPeriodExecutionTime / ticksElapsed) * 18.1818f;
+            return topScripts;
+        }
 
-                    topScripts[si.RootLocalID] += adjustedExecutionTime;
+        public float GetScriptExecutionTime(List<UUID> itemIDs)
+        {
+            if (itemIDs == null|| itemIDs.Count == 0)
+            {
+                return 0.0f;
+            }
+            float time = 0.0f;
+            long tickNow = Util.EnvironmentTickCount();
+            IScriptInstance si;
+            // Calculate the time for all scripts that this engine is executing
+            // Ignore any others
+            foreach (UUID id in itemIDs)
+            {
+                si = GetInstance(id);
+                if (si != null && si.Running)
+                {
+                    time += CalculateAdjustedExectionTime(si, tickNow);
                 }
             }
+            return time;
+        }
 
-            return topScripts;
+        private float CalculateAdjustedExectionTime(IScriptInstance si, long tickNow)
+        {
+            long ticksElapsed = tickNow - si.MeasurementPeriodTickStart;
+
+            // Avoid divide by zero
+            if (ticksElapsed == 0)
+                ticksElapsed = 1;
+
+            // Scale execution time to the ideal 55 fps frame time for these reasons.
+            //
+            // 1) XEngine does not execute scripts per frame, unlike other script engines.  Hence, there is no
+            // 'script execution time per frame', which is the original purpose of this value.
+            //
+            // 2) Giving the raw execution times is misleading since scripts start at different times, making
+            // it impossible to compare scripts.
+            //
+            // 3) Scaling the raw execution time to the time that the script has been running is better but
+            // is still misleading since a script that has just been rezzed may appear to have been running
+            // for much longer.
+            //
+            // 4) Hence, we scale execution time to an idealised frame time (55 fps).  This is also not perfect
+            // since the figure does not represent actual execution time and very hard running scripts will
+            // never exceed 18ms (though this is a very high number for script execution so is a warning sign).
+            return ((float)si.MeasurementPeriodExecutionTime / ticksElapsed) * 18.1818f;
         }
 
         public void SuspendScript(UUID itemID)