Pipe Throttle Update Event to EventManager, client --> ScenePresence --> EventManager, so that modules can know when throttles are updated. The event contains no client specific data to preserve the possibility of 'multiple clients' and you must still call ControllingClient.GetThrottlesPacked(f) to see what the throttles actually are once the event fires. Hook EventManager.OnUpdateThrottle to GetTextureModule.

OpenSim/Framework/IClientAPI.cs

@@ -1038,7 +1038,7 @@ namespace OpenSim.Framework
         event MuteListEntryRemove OnRemoveMuteListEntry;
         event GodlikeMessage onGodlikeMessage;
         event GodUpdateRegionInfoUpdate OnGodUpdateRegionInfoUpdate;
-
+        event GenericCall2 OnUpdateThrottles;
         /// <summary>
         /// Set the debug level at which packet output should be printed to console.
         /// </summary>

OpenSim/Region/ClientStack/Linden/Caps/GetTextureModule.cs

@@ -91,6 +91,7 @@ namespace OpenSim.Region.ClientStack.Linden
         {
             m_scene.EventManager.OnRegisterCaps -= RegisterCaps;
             m_scene.EventManager.OnDeregisterCaps -= DeregisterCaps;
+            m_scene.EventManager.OnThrottleUpdate -= ThrottleUpdate;
             m_scene = null;
         }
 
@@ -101,6 +102,7 @@ namespace OpenSim.Region.ClientStack.Linden
 
             m_scene.EventManager.OnRegisterCaps += RegisterCaps;
             m_scene.EventManager.OnDeregisterCaps += DeregisterCaps;
+            m_scene.EventManager.OnThrottleUpdate += ThrottleUpdate;
 
             if (m_workerThreads == null)
             {
@@ -118,6 +120,46 @@ namespace OpenSim.Region.ClientStack.Linden
                 }
             }
         }
+        private int ExtractImageThrottle(byte[] pthrottles)
+        {
+       
+            byte[] adjData;
+            int pos = 0;
+
+            if (!BitConverter.IsLittleEndian)
+            {
+                byte[] newData = new byte[7 * 4];
+                Buffer.BlockCopy(pthrottles, 0, newData, 0, 7 * 4);
+
+                for (int i = 0; i < 7; i++)
+                    Array.Reverse(newData, i * 4, 4);
+
+                adjData = newData;
+            }
+            else
+            {
+                adjData = pthrottles;
+            }
+
+            // 0.125f converts from bits to bytes
+            //int resend = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f); pos += 4;
+           // int land = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f); pos += 4;
+           // int wind = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f); pos += 4;
+           // int cloud = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f); pos += 4;
+           // int task = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f); pos += 4;
+            pos = pos + 16;
+            int texture = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f); pos += 4;
+            //int asset = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f);
+            return texture;
+        }
+
+        // Now we know when the throttle is changed by the client in the case of a root agent or by a neighbor region in the case of a child agent.
+        public void ThrottleUpdate(ScenePresence p)
+        {
+            byte[] throttles = p.ControllingClient.GetThrottlesPacked(1);
+            UUID user = p.UUID;
+            int imagethrottle = ExtractImageThrottle(throttles);
+        }
 
         public void PostInitialise()
         {

OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs

@@ -295,6 +295,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         public event MuteListEntryRemove OnRemoveMuteListEntry;
         public event GodlikeMessage onGodlikeMessage;
         public event GodUpdateRegionInfoUpdate OnGodUpdateRegionInfoUpdate;
+        public event GenericCall2 OnUpdateThrottles;
 
         #endregion Events
 
@@ -6729,6 +6730,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             #endregion
 
             m_udpClient.SetThrottles(atpack.Throttle.Throttles);
+            GenericCall2 handler = OnUpdateThrottles;
+            if (handler != null)
+            {
+                handler();
+            }
             return true;
         }
 
@@ -11870,6 +11876,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         public void SetChildAgentThrottle(byte[] throttles)
         {
             m_udpClient.SetThrottles(throttles);
+            GenericCall2 handler = OnUpdateThrottles;
+            if (handler != null)
+            {
+                handler();
+            }
         }
 
         /// <summary>

OpenSim/Region/Framework/Scenes/EventManager.cs

@@ -376,6 +376,10 @@ namespace OpenSim.Region.Framework.Scenes
         public event ParcelPrimCountTainted OnParcelPrimCountTainted;
         public event GetScriptRunning OnGetScriptRunning;
 
+        public delegate void ThrottleUpdate(ScenePresence scenePresence);
+
+        public event ThrottleUpdate OnThrottleUpdate;
+
         /// <summary>
         /// RegisterCapsEvent is called by Scene after the Caps object
         /// has been instantiated and before it is return to the
@@ -2641,5 +2645,14 @@ namespace OpenSim.Region.Framework.Scenes
                 }
             }
         }
+
+        public void TriggerThrottleUpdate(ScenePresence scenePresence)
+        {
+            ThrottleUpdate handler = OnThrottleUpdate;
+            if (handler != null)
+            {
+                handler(scenePresence);
+            }
+        }
     }
 }

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -793,6 +793,7 @@ namespace OpenSim.Region.Framework.Scenes
             ControllingClient.OnChangeAnim += avnHandleChangeAnim;
             ControllingClient.OnForceReleaseControls += HandleForceReleaseControls;
             ControllingClient.OnAutoPilotGo += MoveToTarget;
+            ControllingClient.OnUpdateThrottles += RaiseUpdateThrottles;
 
             // ControllingClient.OnChildAgentStatus += new StatusChange(this.ChildStatusChange);
             // ControllingClient.OnStopMovement += new GenericCall2(this.StopMovement);
@@ -3166,6 +3167,10 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         private static Vector3 marker = new Vector3(-1f, -1f, -1f);
+        private void RaiseUpdateThrottles()
+        {
+            m_scene.EventManager.TriggerThrottleUpdate(this);
+        }
         /// <summary>
         /// This updates important decision making data about a child agent
         /// The main purpose is to figure out what objects to send to a child agent that's in a neighboring region

OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs

@@ -873,6 +873,7 @@ namespace OpenSim.Region.OptionalModules.Agent.InternetRelayClientView.Server
         public event MuteListEntryRemove OnRemoveMuteListEntry;
         public event GodlikeMessage onGodlikeMessage;
         public event GodUpdateRegionInfoUpdate OnGodUpdateRegionInfoUpdate;
+        public event GenericCall2 OnUpdateThrottles;
 
 #pragma warning restore 67
 

OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs

@@ -473,7 +473,7 @@ namespace OpenSim.Region.OptionalModules.World.NPC
         public event MuteListEntryRemove OnRemoveMuteListEntry;
         public event GodlikeMessage onGodlikeMessage;
         public event GodUpdateRegionInfoUpdate OnGodUpdateRegionInfoUpdate;
-
+        public event GenericCall2 OnUpdateThrottles;
 #pragma warning restore 67
 
         #endregion

OpenSim/Tests/Common/Mock/TestClient.cs

@@ -320,7 +320,7 @@ namespace OpenSim.Tests.Common.Mock
         public event MuteListEntryRemove OnRemoveMuteListEntry;
         public event GodlikeMessage onGodlikeMessage;
         public event GodUpdateRegionInfoUpdate OnGodUpdateRegionInfoUpdate;
-
+        public event GenericCall2 OnUpdateThrottles;
 #pragma warning restore 67
 
         /// <value>