Added IRegionCreator interface that all ApplicationPlugins that are creators of Scenes should implement and register with the ApplicationRegistry.StackModuleInterface<>(); So that other plugins can attach to their OnNewRegionCreated event.

Made some changes to IRegistryCore and RegistryCore so they support "Stacked" interfaces.

OpenSim/ApplicationPlugins/CreateCommsManager/CreateCommsManagerPlugin.cs

@@ -114,6 +114,7 @@ namespace OpenSim.ApplicationPlugins.CreateCommsManager
         private void InitialiseCommsManager(OpenSimBase openSim)
         {
             LibraryRootFolder libraryRootFolder = new LibraryRootFolder(m_openSim.ConfigurationSettings.LibrariesXMLFile);
+
             bool hgrid = m_openSim.ConfigSource.Source.Configs["Startup"].GetBoolean("hypergrid", false);
 
             if (hgrid)

OpenSim/ApplicationPlugins/LoadRegions/LoadRegionsPlugin.cs

@@ -42,9 +42,7 @@ using OpenSim.Framework.Servers;
 
 namespace OpenSim.ApplicationPlugins.LoadRegions
 {
-    public delegate void NewRegionCreated(IScene scene);
+    public class LoadRegionsPlugin : IApplicationPlugin, IRegionCreator
-
-    public class LoadRegionsPlugin : IApplicationPlugin
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 

OpenSim/Framework/IRegionCreator.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace OpenSim.Framework
+{
+    public delegate void NewRegionCreated(IScene scene);
+    public interface IRegionCreator
+    {
+        event NewRegionCreated OnNewRegionCreated;
+    }
+}

OpenSim/Framework/IRegistryCore.cs

@@ -9,5 +9,8 @@ namespace OpenSim.Framework
         T Get<T>();
         void RegisterInterface<T>(T iface);
         bool TryGet<T>(out T iface);
+
+        void StackModuleInterface<M>(M mod);
+        T[] RequestModuleInterfaces<T>();
     }
 }

OpenSim/Framework/RegistryCore.cs

@@ -40,5 +40,15 @@ namespace OpenSim.Framework
             return (T)m_moduleInterfaces[typeof(T)];
         }
 
+        public void StackModuleInterface<M>(M mod)
+        {
+
+        }
+
+        public T[] RequestModuleInterfaces<T>()
+        {
+            return new T[] { default(T) };
+        }
+
     }
 }

OpenSim/Region/Application/OpenSimBase.cs

@@ -212,6 +212,12 @@ namespace OpenSim
                 m_commsManager.GridService.RegionLoginsEnabled = true;
             }
 
+            AddPluginCommands();
+
+        }
+
+        protected virtual void AddPluginCommands()
+        {
             // If console exists add plugin commands.
             if (m_console != null)
             {
@@ -251,7 +257,6 @@ namespace OpenSim
                     }
                 }
             }
-
         }
 
         private void HandleCommanderCommand(string module, string[] cmd)