Establish EventManager.OnRegionReady event. This will only be triggerred once when the region is ready.

Switch MapImageServiceModule to use this.

OpenSim/Region/CoreModules/ServiceConnectorsOut/MapImage/MapImageServiceModule.cs

@@ -146,7 +146,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.MapImage
             lock (m_scenes)
                 m_scenes[scene.RegionInfo.RegionID] = scene;
 
-            scene.EventManager.OnLoginsEnabled += OnLoginsEnabled;
+            scene.EventManager.OnRegionReady += s => UploadMapTile(s);
         }
 
         ///<summary>
@@ -163,11 +163,6 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.MapImage
 
         #endregion ISharedRegionModule
         
-        void OnLoginsEnabled(IScene scene)
-        {
-            UploadMapTile(scene);
-        }
-
         ///<summary>
         ///
         ///</summary>

OpenSim/Region/Framework/Scenes/EventManager.cs

@@ -498,6 +498,16 @@ namespace OpenSim.Region.Framework.Scenes
         public delegate void LoginsEnabled(IScene scene);
         public event LoginsEnabled OnLoginsEnabled;
 
+        /// <summary>
+        /// Fired when a region is considered ready for use.
+        /// </summary>
+        /// <remarks>
+        /// A region is considered ready when startup operations such as loading of scripts already on the region
+        /// have been completed.
+        /// </remarks>
+        public delegate void RegionReady(IScene scene);
+        public event RegionReady OnRegionReady;
+
         public delegate void PrimsLoaded(Scene s);
         public event PrimsLoaded OnPrimsLoaded;
 
@@ -2427,11 +2437,11 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public void TriggerLoginsEnabled(Scene scene)
+        public void TriggerLoginsEnabled(IScene scene)
         {
             LoginsEnabled handler = OnLoginsEnabled;
 
-            if ( handler != null)
+            if (handler != null)
             {
                 foreach (LoginsEnabled d in handler.GetInvocationList())
                 {
@@ -2441,7 +2451,28 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                     catch (Exception e)
                     {
-                        m_log.ErrorFormat("[EVENT MANAGER]: Delegate for LoginsEnabled failed - continuing {0} - {1}",
+                        m_log.ErrorFormat("[EVENT MANAGER]: Delegate for OnLoginsEnabled failed - continuing {0} - {1}",
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        }
+
+        public void TriggerRegionReady(IScene scene)
+        {
+            RegionReady handler = OnRegionReady;
+
+            if (handler != null)
+            {
+                foreach (RegionReady d in handler.GetInvocationList())
+                {
+                    try
+                    {
+                        d(scene);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat("[EVENT MANAGER]: Delegate for OnRegionReady failed - continuing {0} - {1}",
                             e.Message, e.StackTrace);
                     }
                 }

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -1459,6 +1459,7 @@ namespace OpenSim.Region.Framework.Scenes
                             {
                                 m_log.InfoFormat("[REGION]: Enabling logins for {0}", RegionInfo.RegionName);
                                 LoginsDisabled = false;
+                                EventManager.TriggerRegionReady(this);
                             }
     
                             m_sceneGridService.InformNeighborsThatRegionisUp(RequestModuleInterface<INeighbourService>(), RegionInfo);

OpenSim/Region/OptionalModules/Scripting/RegionReadyModule/RegionReadyModule.cs

@@ -244,6 +244,8 @@ namespace OpenSim.Region.OptionalModules.Scripting.RegionReady
                 {
                     RRAlert("enabled");
                 }
+
+                m_scene.EventManager.TriggerRegionReady(m_scene);
             }
 
             m_scene.EventManager.OnEmptyScriptCompileQueue -= OnEmptyScriptCompileQueue;