9 files changed, 70 insertions, 28 deletions

diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLImageManager.cs b/OpenSim/Region/ClientStack/LindenUDP/LLImageManager.cs
index 2120d33..cc290ed 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLImageManager.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLImageManager.cs
@@ -88,7 +88,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 J2KImage imgrequest;
 
                 // Do a linear search for this texture download
-                lock (m_priorityQueue)
+                lock (m_syncRoot)
                     m_priorityQueue.Find(delegate(J2KImage img) { return img.TextureID == newRequest.RequestedAssetID; }, out imgrequest);
 
                 if (imgrequest != null)
@@ -99,7 +99,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                         try 
                         {
-                            lock (m_priorityQueue)
+                            lock (m_syncRoot)
                                 m_priorityQueue.Delete(imgrequest.PriorityQueueHandle); 
                         }
                         catch (Exception) { }
@@ -211,7 +211,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             J2KImage image = null;
 
-            lock (m_priorityQueue)
+            lock (m_syncRoot)
             {
 
                 if (m_priorityQueue.Count > 0)
@@ -230,23 +230,27 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             image.PriorityQueueHandle = null;
 
-            lock (m_priorityQueue)
-                m_priorityQueue.Add(ref image.PriorityQueueHandle, image);
+            lock (m_syncRoot)
+                try
+                {
+                    m_priorityQueue.Add(ref image.PriorityQueueHandle, image);
+                }
+                catch (Exception) { }
         }
 
         void RemoveImageFromQueue(J2KImage image)
         {
-            try
-            {
-                lock (m_priorityQueue)
+            lock (m_syncRoot)
+                try
+                {
                     m_priorityQueue.Delete(image.PriorityQueueHandle);
-            }
-            catch (Exception) { }
+                }
+                catch (Exception) { }
         }
 
         void UpdateImageInQueue(J2KImage image)
         {
-            lock (m_priorityQueue)
+            lock (m_syncRoot)
             {
                 try { m_priorityQueue.Replace(image.PriorityQueueHandle, image); }
                 catch (Exception)
diff --git a/OpenSim/Region/CoreModules/Asset/CenomeAssetCache.cs b/OpenSim/Region/CoreModules/Asset/CenomeAssetCache.cs
index 5a5ad7e..66ca7c2 100644
--- a/OpenSim/Region/CoreModules/Asset/CenomeAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/CenomeAssetCache.cs
@@ -178,7 +178,7 @@ namespace OpenSim.Region.CoreModules.Asset
         {
             if (maximalSize <= 0 || maximalCount <= 0)
             {
-                Log.Info("[ASSET CACHE]: Cenome asset cache is not enabled.");
+                //Log.Debug("[ASSET CACHE]: Cenome asset cache is not enabled.");
                 m_enabled = false;
                 return;
             }
@@ -194,7 +194,7 @@ namespace OpenSim.Region.CoreModules.Asset
                 CnmSynchronizedCache<string, AssetBase>.Synchronized(new CnmMemoryCache<string, AssetBase>(
                     maximalSize, maximalCount, expirationTime));
             m_enabled = true;
-            Log.InfoFormat(
+            Log.DebugFormat(
                 "[ASSET CACHE]: Cenome asset cache enabled (MaxSize = {0} bytes, MaxCount = {1}, ExpirationTime = {2})",
                 maximalSize,
                 maximalCount,
@@ -263,7 +263,7 @@ namespace OpenSim.Region.CoreModules.Asset
 
             if (m_getCount == m_debugEpoch)
             {
-                Log.InfoFormat(
+                Log.DebugFormat(
                     "[ASSET CACHE]: Cached = {0}, Get = {1}, Hits = {2}%, Size = {3} bytes, Avg. A. Size = {4} bytes",
                     m_cachedCount,
                     m_getCount,
@@ -333,7 +333,7 @@ namespace OpenSim.Region.CoreModules.Asset
                 return;
 
             string name = moduleConfig.GetString("AssetCaching");
-            Log.DebugFormat("[XXX] name = {0} (this module's name: {1}", name, Name);
+            //Log.DebugFormat("[XXX] name = {0} (this module's name: {1}", name, Name);
 
             if (name != Name)
                 return;
@@ -343,14 +343,14 @@ namespace OpenSim.Region.CoreModules.Asset
             int maxCount = DefaultMaxCount;
             TimeSpan expirationTime = DefaultExpirationTime;
 
-            IConfig assetConfig = source.Configs[ "AssetCache" ];
+            IConfig assetConfig = source.Configs["AssetCache"];
             if (assetConfig != null)
             {
                 // Get optional configurations
                 maxSize = assetConfig.GetLong("MaxSize", DefaultMaxSize);
                 maxCount = assetConfig.GetInt("MaxCount", DefaultMaxCount);
                 expirationTime =
-                    TimeSpan.FromMinutes(assetConfig.GetInt("ExpirationTime", (int) DefaultExpirationTime.TotalMinutes));
+                    TimeSpan.FromMinutes(assetConfig.GetInt("ExpirationTime", (int)DefaultExpirationTime.TotalMinutes));
 
                 // Debugging purposes only
                 m_debugEpoch = assetConfig.GetInt("DebugEpoch", 0);
diff --git a/OpenSim/Region/CoreModules/Asset/CoreAssetCache.cs b/OpenSim/Region/CoreModules/Asset/CoreAssetCache.cs
index 2de40d2..0a7e736 100644
--- a/OpenSim/Region/CoreModules/Asset/CoreAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/CoreAssetCache.cs
@@ -66,7 +66,7 @@ namespace OpenSim.Region.CoreModules.Asset
             if (moduleConfig != null)
             {
                 string name = moduleConfig.GetString("AssetCaching");
-                m_log.DebugFormat("[XXX] name = {0} (this module's name: {1}", name, Name);
+                //m_log.DebugFormat("[XXX] name = {0} (this module's name: {1}", name, Name);
 
                 if (name == Name)
                 {
diff --git a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
index c0bb70c..b81ab41 100644
--- a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
@@ -636,11 +636,8 @@ namespace Flotsam.RegionModules.AssetCache
                 m_log.InfoFormat("[FLOTSAM ASSET CACHE] flotsamcache clearfile - Remove all assets cached on disk");
 
             }
-
-
         }
 
         #endregion
-
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/CoreModules/Asset/GlynnTuckerAssetCache.cs b/OpenSim/Region/CoreModules/Asset/GlynnTuckerAssetCache.cs
index 8d8e0fe..4869f5d 100644
--- a/OpenSim/Region/CoreModules/Asset/GlynnTuckerAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/GlynnTuckerAssetCache.cs
@@ -68,7 +68,7 @@ namespace OpenSim.Region.CoreModules.Asset
             if (moduleConfig != null)
             {
                 string name = moduleConfig.GetString("AssetCaching");
-                m_log.DebugFormat("[ASSET CACHE] name = {0} (this module's name: {1}). Sync? ", name, Name, m_Cache.IsSynchronized);
+                //m_log.DebugFormat("[ASSET CACHE] name = {0} (this module's name: {1}). Sync? ", name, Name, m_Cache.IsSynchronized);
 
                 if (name == Name)
                 {
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/LocalGridServiceConnector.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/LocalGridServiceConnector.cs
index 3ca4882..1c72488 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/LocalGridServiceConnector.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/LocalGridServiceConnector.cs
@@ -206,6 +206,20 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
 
         public GridRegion GetRegionByPosition(UUID scopeID, int x, int y)
         {
+            GridRegion region = null;
+
+            // First see if it's a neighbour, even if it isn't on this sim.
+            // Neighbour data is cached in memory, so this is fast
+            foreach (RegionCache rcache in m_LocalCache.Values)
+            {
+                region = rcache.GetRegionByPosition(x, y);
+                if (region != null)
+                {
+                    return region;
+                }
+            }
+
+            // Then try on this sim (may be a lookup in DB if this is using MySql).
             return m_GridService.GetRegionByPosition(scopeID, x, y);
         }
 
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionCache.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionCache.cs
index 2b336bb..44e850b 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionCache.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionCache.cs
@@ -29,10 +29,12 @@ using System;
 using System.Collections.Generic;
 using System.Reflection;
 
+using OpenSim.Framework;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Services.Interfaces;
 using GridRegion = OpenSim.Services.Interfaces.GridRegion;
 
+using OpenMetaverse;
 using log4net;
 
 namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
@@ -75,5 +77,17 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
         {
             return new List<GridRegion>(m_neighbours.Values);
         }
+
+        public GridRegion GetRegionByPosition(int x, int y)
+        {
+            uint xsnap = (uint)(x / Constants.RegionSize) * Constants.RegionSize;
+            uint ysnap = (uint)(y / Constants.RegionSize) * Constants.RegionSize;
+            ulong handle = Utils.UIntsToLong(xsnap, ysnap);
+            
+            if (m_neighbours.ContainsKey(handle))
+                return m_neighbours[handle];
+            
+            return null;
+        }
     }
 }
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index c06a58f..9418e3d 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -137,6 +137,8 @@ namespace OpenSim.Region.Framework.Scenes
         protected IAssetService m_AssetService = null;
         protected IAuthorizationService m_AuthorizationService = null;
 
+        private Object m_heartbeatLock = new Object();
+
         public IAssetService AssetService
         {
             get
@@ -942,6 +944,9 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="e"></param>
         private void Heartbeat(object sender)
         {
+            if (!Monitor.TryEnter(m_heartbeatLock))
+                return;
+
             try
             {
                 Update();
@@ -952,6 +957,11 @@ namespace OpenSim.Region.Framework.Scenes
             catch (ThreadAbortException)
             {
             }
+            finally
+            {
+                Monitor.Pulse(m_heartbeatLock);
+                Monitor.Exit(m_heartbeatLock);
+            }
         }
 
         /// <summary>
@@ -962,6 +972,12 @@ namespace OpenSim.Region.Framework.Scenes
             int maintc = 0;
             while (!shuttingdown)
             {
+//#if DEBUG
+//                int w = 0, io = 0;
+//                ThreadPool.GetAvailableThreads(out w, out io);
+//                if ((w < 10) || (io < 10))
+//                    m_log.DebugFormat("[WARNING]: ThreadPool reaching exhaustion. workers = {0}; io = {1}", w, io);
+//#endif
                 maintc = Environment.TickCount;
 
                 TimeSpan SinceLastFrame = DateTime.Now - m_lastupdate;
diff --git a/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs b/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
index 06bae5a..c02b123 100644
--- a/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
+++ b/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
@@ -3488,7 +3488,7 @@ namespace OpenSim.Region.Physics.OdePlugin
         public override void UnCombine(PhysicsScene pScene)
         {
             IntPtr localGround = IntPtr.Zero;
-            float[] localHeightfield;
+            //float[] localHeightfield;
             bool proceed = false;
             List<IntPtr> geomDestroyList = new List<IntPtr>();
 
@@ -3785,16 +3785,13 @@ namespace OpenSim.Region.Physics.OdePlugin
                         sides.Z = 0.5f;
 
                         ds.DrawBox(ref pos, ref R, ref sides);
-
-
                     }
                 }
             }
         }
 
         public void start(int unused)
-        {
-            
+        {            
             ds.SetViewpoint(ref xyz, ref hpr);
         }
 #endif