* Added PhysicsScene.Dispose()

* In ODE, disposing of all of the ODE objects and the ODE World to reclaim memory when the simulator restarts.

OpenSim/Region/Environment/Scenes/Scene.cs

@@ -472,6 +472,11 @@ namespace OpenSim.Region.Environment.Scenes
         // This causes the region to restart immediatley.
         public void RestartNow()
         {
+            if (PhysicsScene != null)
+            {
+                PhysicsScene.Dispose();
+            }
+
             m_log.Error("[REGION]: Closing");
             Close();
             m_log.Error("[REGION]: Firing Region Restart Message");

OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs

@@ -69,12 +69,16 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
         public BasicScene()
         {
         }
-
+        
         public override void Initialise(IMesher meshmerizer)
         {
             // Does nothing right now
         }
 
+        public override void Dispose()
+        {
+
+        }
         public override PhysicsActor AddAvatar(string avName, PhysicsVector position)
         {
             BasicActor act = new BasicActor();

OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs

@@ -409,7 +409,10 @@ namespace OpenSim.Region.Physics.BulletXPlugin
             mesher = meshmerizer;
         }
 
+        public override void Dispose()
+        {
 
+        }
         public override PhysicsActor AddAvatar(string avName, PhysicsVector position)
         {
             PhysicsVector pos = new PhysicsVector();

OpenSim/Region/Physics/Manager/PhysicsScene.cs

@@ -81,6 +81,8 @@ namespace OpenSim.Region.Physics.Manager
 
         public abstract void DeleteTerrain();
 
+        public abstract void Dispose();
+
         public abstract bool IsThreaded { get; }
 
         private class NullPhysicsScene : PhysicsScene
@@ -157,6 +159,10 @@ namespace OpenSim.Region.Physics.Manager
             {
                 get { return false; }
             }
+            public override void Dispose()
+            {
+
+            }
         }
     }
 }

OpenSim/Region/Physics/OdePlugin/OdePlugin.cs

@@ -73,6 +73,8 @@ namespace OpenSim.Region.Physics.OdePlugin
 
         public void Dispose()
         {
+            
+            d.CloseODE();
         }
     }
 
@@ -1509,5 +1511,23 @@ namespace OpenSim.Region.Physics.OdePlugin
         public override void DeleteTerrain()
         {
         }
+        public override void Dispose()
+        {
+            lock (OdeLock)
+            {
+                
+                foreach (OdePrim prm in _prims)
+                {
+                    RemovePrim(prm);
+                }
+
+                foreach (OdeCharacter act in _characters)
+                {
+                    RemoveAvatar(act);
+                }
+                d.WorldDestroy(world);
+                //d.CloseODE();
+            }
+        }
     }
 }

OpenSim/Region/Physics/POSPlugin/POSPlugin.cs

@@ -77,7 +77,10 @@ namespace OpenSim.Region.Physics.POSPlugin
         {
             // Does nothing right now
         }
+        public override void Dispose()
+        {
 
+        }
         public override PhysicsActor AddAvatar(string avName, PhysicsVector position)
         {
             POSCharacter act = new POSCharacter();

OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs

@@ -88,7 +88,10 @@ namespace OpenSim.Region.Physics.PhysXPlugin
         {
             // Does nothing right now
         }
+        public override void Dispose()
+        {
 
+        }
 
         public override PhysicsActor AddAvatar(string avName, PhysicsVector position)
         {