From 17bdc45c5ce623549b185a6c4bd5e8fdf00c8d8e Mon Sep 17 00:00:00 2001
From: Melanie
Date: Tue, 4 Aug 2009 03:17:13 +0100
Subject: Add plumbing for the SceneObjectDeleter to wait for the script engine
 to allow final deletion of objects. Meant to support the attach(NULL_KEY)
 event,

---
 .../Framework/Interfaces/IEntityInventory.cs       |  2 ++
 .../Region/Framework/Interfaces/IScriptModule.cs   |  1 +
 .../Scenes/AsyncSceneObjectGroupDeleter.cs         | 11 +++++++---
 .../Region/Framework/Scenes/SceneObjectGroup.cs    | 11 ++++++++++
 OpenSim/Region/Framework/Scenes/SceneObjectPart.cs |  5 +++++
 .../Framework/Scenes/SceneObjectPartInventory.cs   | 25 ++++++++++++++++++++++
 6 files changed, 52 insertions(+), 3 deletions(-)

(limited to 'OpenSim/Region/Framework')

diff --git a/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs b/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
index f040365..1ed92fb 100644
--- a/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
+++ b/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
@@ -197,5 +197,7 @@ namespace OpenSim.Region.Framework.Interfaces
         /// A <see cref="Dictionary`2"/>
         /// </returns>
         Dictionary<UUID, string> GetScriptStates();
+
+        bool CanBeDeleted();
     }
 }
diff --git a/OpenSim/Region/Framework/Interfaces/IScriptModule.cs b/OpenSim/Region/Framework/Interfaces/IScriptModule.cs
index 2c4ddbd..10835b9 100644
--- a/OpenSim/Region/Framework/Interfaces/IScriptModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IScriptModule.cs
@@ -36,6 +36,7 @@ namespace OpenSim.Region.Framework.Interfaces
 
         string GetAssemblyName(UUID itemID);
         string GetXMLState(UUID itemID);
+        bool CanBeDeleted(UUID itemID);
 
         bool PostScriptEvent(UUID itemID, string name, Object[] args);
         bool PostObjectEvent(UUID itemID, string name, Object[] args);
diff --git a/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs b/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
index 4ef1749..f8208ec 100644
--- a/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
+++ b/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
@@ -109,7 +109,7 @@ namespace OpenSim.Region.Framework.Scenes
             
             while (InventoryDeQueueAndDelete())
             {
-                m_log.Debug("[SCENE]: Sent item successfully to inventory, continuing...");
+                //m_log.Debug("[SCENE]: Sent item successfully to inventory, continuing...");
             }
         }            
 
@@ -128,11 +128,16 @@ namespace OpenSim.Region.Framework.Scenes
                     int left = m_inventoryDeletes.Count;
                     if (left > 0)
                     {
+                        x = m_inventoryDeletes.Dequeue();
+                        if (!x.objectGroup.CanBeDeleted())
+                        {
+                            m_inventoryDeletes.Enqueue(x);
+                            return true;
+                        }
+
                         m_log.DebugFormat(
                             "[SCENE]: Sending object to user's inventory, {0} item(s) remaining.", left);
                         
-                        x = m_inventoryDeletes.Dequeue();
-
                         try
                         {
                             m_scene.DeleteToInventory(x.action, x.folderID, x.objectGroup, x.remoteClient);                            
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index 0f7bd00..21e133b 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -3383,5 +3383,16 @@ namespace OpenSim.Region.Framework.Scenes
             SetFromAssetID(uuid);
         }
         #endregion 
+
+        public bool CanBeDeleted()
+        {
+            foreach (SceneObjectPart part in Children.Values)
+            {
+                if (!part.CanBeDeleted())
+                    return false;
+            }
+
+            return true;
+        }
     }
 }
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index a4d455c..bc11709 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -3787,5 +3787,10 @@ if (m_shape != null) {
 
             Inventory.ApplyNextOwnerPermissions();
         }        
+
+        public bool CanBeDeleted()
+        {
+            return Inventory.CanBeDeleted();
+        }
     }        
 }
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index 084aa50..582f44d 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -910,5 +910,30 @@ namespace OpenSim.Region.Framework.Scenes
             }
             return ret;
         }
+
+        public bool CanBeDeleted()
+        {
+            if (!ContainsScripts())
+                return true;
+
+            IScriptModule[] engines = m_part.ParentGroup.Scene.RequestModuleInterfaces<IScriptModule>();
+
+            if (engines == null) // No engine at all
+                return true;
+
+            foreach (TaskInventoryItem item in m_items.Values)
+            {
+                if (item.InvType == (int)InventoryType.LSL)
+                {
+                    foreach (IScriptModule e in engines)
+                    {
+                        if(!e.CanBeDeleted(item.ItemID))
+                            return false;
+                    }
+                }
+            }
+
+            return true;
+        }
     }
 }
-- 
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