* Added additional debug testing info to Scene

* Corrected issue with MRMs where it would attempt to overwrite an already loaded DLL. (and thus fail with cryptic UnauthorizedAccessException.)
* Made DrunkenTextAppreciationModule.cs MRM not crash with StackOverflowException
* Added some temporary logging to MRM World.*

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -3147,6 +3147,7 @@ namespace OpenSim.Region.Framework.Scenes
                 catch (Exception e)
                 {
                     m_log.Info("[BUG] in " + RegionInfo.RegionName + ": " + e.ToString());
+                    m_log.Info("[BUG] Stack Trace: " + e.StackTrace);
                 }
             }
         }

OpenSim/Region/OptionalModules/Scripting/Minimodule/MRMModule.cs

@@ -91,8 +91,23 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
                     m_log.Info("[MRM] Starting MRM");
                     mmb.Start();
                 }
+                catch (UnauthorizedAccessException e)
+                {
+                    m_log.Error("[MRM] UAE " + e.Message);
+                    m_log.Error("[MRM] " + e.StackTrace);
+
+                    if (e.InnerException != null)
+                        m_log.Error("[MRM] " + e.InnerException);
+
+                    m_scene.Broadcast(delegate(IClientAPI user)
+                    {
+                        user.SendAlertMessage(
+                            "MRM UnAuthorizedAccess: " + e);
+                    });
+                }
                 catch (Exception e)
                 {
+                    m_log.Info("[MRM] Error: " + e);
                     m_scene.Broadcast(delegate(IClientAPI user)
                                           {
                                               user.SendAlertMessage(
@@ -133,13 +148,15 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
         /// <returns></returns>
         internal string CompileFromDotNetText(string Script, string uuid)
         {
+            m_log.Info("MRM 1");
             const string ext = ".cs";
             const string FilePrefix = "MiniModule";
 
             // Output assembly name
             string OutFile = Path.Combine("MiniModules", Path.Combine(
                                                              m_scene.RegionInfo.RegionID.ToString(),
-                                                             FilePrefix + "_compiled_" + uuid + ".dll"));
+                                                             FilePrefix + "_compiled_" + uuid + "_" +
+                                                             Util.RandomClass.Next(9000) + ".dll"));
 
             // Create Directories for Assemblies
             if (!Directory.Exists("MiniModules"))
@@ -148,10 +165,19 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
             if (!Directory.Exists(tmp))
                 Directory.CreateDirectory(tmp);
 
+
+            m_log.Info("MRM 2");
+
             try
             {
                 File.Delete(OutFile);
             }
+            catch (UnauthorizedAccessException e)
+            {
+                throw new Exception("Unable to delete old existing " +
+                                    "script-file before writing new. Compile aborted: " +
+                                    e);
+            }
             catch (IOException e)
             {
                 throw new Exception("Unable to delete old existing " +
@@ -159,6 +185,8 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
                                     e);
             }
 
+            m_log.Info("MRM 3");
+
             // DEBUG - write source to disk
             string srcFileName = FilePrefix + "_source_" +
                                  Path.GetFileNameWithoutExtension(OutFile) + ext;
@@ -176,6 +204,8 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
                             srcFileName + "\": " + ex.ToString());
             }
 
+            m_log.Info("MRM 4");
+
             // Do actual compile
             CompilerParameters parameters = new CompilerParameters();
 
@@ -196,9 +226,13 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
             parameters.IncludeDebugInformation = true;
             parameters.TreatWarningsAsErrors = false;
 
+            m_log.Info("MRM 5");
+
             CompilerResults results = CScodeProvider.CompileAssemblyFromSource(
                 parameters, Script);
 
+            m_log.Info("MRM 6");
+
             int display = 5;
             if (results.Errors.Count > 0)
             {
@@ -232,6 +266,8 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
                 }
             }
 
+            m_log.Info("MRM 7");
+
             if (!File.Exists(OutFile))
             {
                 string errtext = String.Empty;
@@ -256,6 +292,8 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
                 throw new Exception(errtext);
             }
 
+            m_log.Info("MRM 8");
+
             // Convert to base64
             //
             string filetext = Convert.ToBase64String(data);
@@ -264,10 +302,14 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
 
             Byte[] buf = enc.GetBytes(filetext);
 
+            m_log.Info("MRM 9");
+
             FileStream sfs = File.Create(OutFile + ".cil.b64");
             sfs.Write(buf, 0, buf.Length);
             sfs.Close();
 
+            m_log.Info("MRM 10");
+
             return OutFile;
         }
     }

OpenSim/Region/OptionalModules/Scripting/Minimodule/Test/DrunkenTextAppreciationModule.cs

@@ -38,12 +38,15 @@ namespace OpenSim
 
         void World_OnChat(IWorld sender, ChatEventArgs e)
         {
-            e.Text.Replace("s", "sh");
+            if(!e.Text.Contains("hic!"))
-            e.Text.Replace("S", "Sh");
+            {
+                e.Text = e.Text.Replace("s", "sh");
+                e.Text = e.Text.Replace("S", "Sh");
                 e.Text += " ...hic!";
 
                 Host.Object.Say(e.Text);
             }
+        }
 
         public override void Stop()
         {

OpenSim/Region/OptionalModules/Scripting/Minimodule/World.cs

@@ -26,7 +26,10 @@
  */
 
 using System.Collections.Generic;
+using System.Reflection;
+using log4net;
 using OpenSim.Framework;
+using OpenSim.Framework.Client;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 
@@ -34,6 +37,8 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
 {
     public class World : IWorld 
     {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
         private readonly Scene m_internalScene;
         private readonly Heightmap m_heights;
 
@@ -100,7 +105,7 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
                 return;
             }
             // Avatar?
-            if (chat.SenderObject != null && chat.SenderObject == null)
+            if (chat.Sender != null && chat.SenderObject == null)
             {
                 ChatEventArgs e = new ChatEventArgs();
                 e.Sender = new SPAvatar(m_internalScene, chat.SenderUUID);