From 9fee431cc8a054dd4d6b20392cbefd0a0f8343f1 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Sat, 30 Mar 2013 01:21:16 +0000
Subject: In the flotasm asset cache, if we get a request for a file that we're
 actively writing, simply return null instead of first logging an exception.

---
 .../Region/CoreModules/Asset/FlotsamAssetCache.cs  | 52 +++++++++++-----------
 1 file changed, 27 insertions(+), 25 deletions(-)

diff --git a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
index 3cba9b4..2afe065 100644
--- a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
@@ -341,11 +341,35 @@ namespace OpenSim.Region.CoreModules.Asset
         /// <param name="id"></param>
         /// <returns>An asset retrieved from the file cache.  null if there was a problem retrieving an asset.</returns>
         private AssetBase GetFromFileCache(string id)
-        {
-            AssetBase asset = null;
-           
+        {          
             string filename = GetFileName(id);
 
+#if WAIT_ON_INPROGRESS_REQUESTS
+            // Check if we're already downloading this asset.  If so, try to wait for it to
+            // download.
+            if (m_WaitOnInprogressTimeout > 0)
+            {
+                m_RequestsForInprogress++;
+
+                ManualResetEvent waitEvent;
+                if (m_CurrentlyWriting.TryGetValue(filename, out waitEvent))
+                {
+                    waitEvent.WaitOne(m_WaitOnInprogressTimeout);
+                    return Get(id);
+                }
+            }
+#else
+            // Track how often we have the problem that an asset is requested while
+            // it is still being downloaded by a previous request.
+            if (m_CurrentlyWriting.Contains(filename))
+            {
+                m_RequestsForInprogress++;
+                return null;
+            }
+#endif
+
+            AssetBase asset = null;
+
             if (File.Exists(filename))
             {
                 FileStream stream = null;
@@ -383,28 +407,6 @@ namespace OpenSim.Region.CoreModules.Asset
                 }
             }
 
-#if WAIT_ON_INPROGRESS_REQUESTS
-            // Check if we're already downloading this asset.  If so, try to wait for it to
-            // download.
-            if (m_WaitOnInprogressTimeout > 0)
-            {
-                m_RequestsForInprogress++;
-
-                ManualResetEvent waitEvent;
-                if (m_CurrentlyWriting.TryGetValue(filename, out waitEvent))
-                {
-                    waitEvent.WaitOne(m_WaitOnInprogressTimeout);
-                    return Get(id);
-                }
-            }
-#else
-            // Track how often we have the problem that an asset is requested while
-            // it is still being downloaded by a previous request.
-            if (m_CurrentlyWriting.Contains(filename))
-            {
-                m_RequestsForInprogress++;
-            }
-#endif
             return asset;
         }
 
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