From 8c8c8a00a47b61fcfd4a500ac8f13aa1aafaad26 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Fri, 23 Nov 2012 02:22:30 +0000
Subject: Fix problem where restarting the currently selected region would stop
 various console commands (e.g. "show users") from working.

This was because the "currently selected" scene reference was being left as the dead scene instead of the restarted Scene object.
---
 OpenSim/Region/Framework/Scenes/Scene.cs        | 10 ++----
 OpenSim/Region/Framework/Scenes/SceneManager.cs | 46 ++++++++++++-------------
 2 files changed, 25 insertions(+), 31 deletions(-)

(limited to 'OpenSim/Region/Framework')

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index db45d6b..8ef22bd 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -1134,15 +1134,9 @@ namespace OpenSim.Region.Framework.Scenes
                 }
             }
 
-            m_log.Error("[REGION]: Closing");
-            Close();
+            m_log.InfoFormat("[REGION]: Restarting region {0}", Name);
 
-            if (PhysicsScene != null)
-            {
-                PhysicsScene.Dispose();
-            }            
-
-            m_log.Error("[REGION]: Firing Region Restart Message");
+            Close();
 
             base.Restart();
         }
diff --git a/OpenSim/Region/Framework/Scenes/SceneManager.cs b/OpenSim/Region/Framework/Scenes/SceneManager.cs
index 1c236db..1e2e973 100644
--- a/OpenSim/Region/Framework/Scenes/SceneManager.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneManager.cs
@@ -100,23 +100,25 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         private readonly List<Scene> m_localScenes = new List<Scene>();
-        private Scene m_currentScene = null;
 
         public List<Scene> Scenes
         {
             get { return new List<Scene>(m_localScenes); }
         }
 
-        public Scene CurrentScene
-        {
-            get { return m_currentScene; }
-        }
+        /// <summary>
+        /// Scene selected from the console.
+        /// </summary>
+        /// <value>
+        /// If null, then all scenes are considered selected (signalled as "Root" on the console).
+        /// </value>
+        public Scene CurrentScene { get; private set; }
 
         public Scene CurrentOrFirstScene
         {
             get
             {
-                if (m_currentScene == null)
+                if (CurrentScene == null)
                 {
                     lock (m_localScenes)
                     {
@@ -128,7 +130,7 @@ namespace OpenSim.Region.Framework.Scenes
                 }
                 else
                 {
-                    return m_currentScene;
+                    return CurrentScene;
                 }
             }
         }
@@ -178,8 +180,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void HandleRestart(RegionInfo rdata)
         {
-            m_log.Error("[SCENEMANAGER]: Got Restart message for region:" + rdata.RegionName + " Sending up to main");
-            int RegionSceneElement = -1;
+            Scene restartedScene = null;
 
             lock (m_localScenes)
             {
@@ -187,19 +188,18 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     if (rdata.RegionName == m_localScenes[i].RegionInfo.RegionName)
                     {
-                        RegionSceneElement = i;
+                        restartedScene = m_localScenes[i];
+                        m_localScenes.RemoveAt(i);
+                        break;
                     }
                 }
-
-                // Now we make sure the region is no longer known about by the SceneManager
-                // Prevents duplicates.
-
-                if (RegionSceneElement >= 0)
-                {
-                    m_localScenes.RemoveAt(RegionSceneElement);
-                }
             }
 
+            // If the currently selected scene has been restarted, then we can't reselect here since we the scene
+            // hasn't yet been recreated.  We will have to leave this to the caller.
+            if (CurrentScene == restartedScene)
+                CurrentScene = null;
+
             // Send signal to main that we're restarting this sim.
             OnRestartSim(rdata);
         }
@@ -341,14 +341,14 @@ namespace OpenSim.Region.Framework.Scenes
 
         private void ForEachCurrentScene(Action<Scene> func)
         {
-            if (m_currentScene == null)
+            if (CurrentScene == null)
             {
                 lock (m_localScenes)
                     m_localScenes.ForEach(func);
             }
             else
             {
-                func(m_currentScene);
+                func(CurrentScene);
             }
         }
 
@@ -368,7 +368,7 @@ namespace OpenSim.Region.Framework.Scenes
                 || (String.Compare(regionName, "..") == 0)
                 || (String.Compare(regionName, "/") == 0))
             {
-                m_currentScene = null;
+                CurrentScene = null;
                 return true;
             }
             else
@@ -379,7 +379,7 @@ namespace OpenSim.Region.Framework.Scenes
                     {
                         if (String.Compare(scene.RegionInfo.RegionName, regionName, true) == 0)
                         {
-                            m_currentScene = scene;
+                            CurrentScene = scene;
                             return true;
                         }
                     }
@@ -399,7 +399,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     if (scene.RegionInfo.RegionID == regionID)
                     {
-                        m_currentScene = scene;
+                        CurrentScene = scene;
                         return true;
                     }
                 }
-- 
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