partially revert commit 42a9afdc43cc.. of 06-12 not allowing more updates to be enqueued on deleted objects. Keep the catch up on deenqueue, so preserving the race condition safe guard. Let Scene sendkillObject work even if object is flaged as deleted. Still not clear how this are related to mantis 7858 or even less to 7990.

3 files changed, 23 insertions, 30 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 33418e6..5d5ea89 100755
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -3866,15 +3866,9 @@ namespace OpenSim.Region.Framework.Scenes
             foreach (uint localID in localIDs)
             {
                 SceneObjectPart part = GetSceneObjectPart(localID);
-                if (part != null) // It is a prim
-                {
-                    if (part.ParentGroup != null && !part.ParentGroup.IsDeleted) // Valid
-                    {
-                        if (part.ParentGroup.RootPart != part) // Child part
-                            continue;
-                    }
-                }
-                deleteIDs.Add(localID);
+                if (part != null && part.ParentGroup != null &&
+                            part.ParentGroup.RootPart == part)
+                    deleteIDs.Add(localID);
             }
 
             ForEachClient(c => c.SendKillObject(deleteIDs));
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index e17ef2b..df6a1cf 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -2065,41 +2065,37 @@ namespace OpenSim.Region.Framework.Scenes
         {
             // We need to keep track of this state in case this group is still queued for backup.
             IsDeleted = true;
-            HasGroupChanged = true;
 
             DetachFromBackup();
 
+            if(Scene == null)  // should not happen unless restart/shutdown ?
+                return;
+
             SceneObjectPart[] parts = m_parts.GetArray();
             for (int i = 0; i < parts.Length; i++)
             {
                 SceneObjectPart part = parts[i];
 
-                if (Scene != null)
+                Scene.ForEachScenePresence(delegate(ScenePresence avatar)
                 {
-                    Scene.ForEachScenePresence(delegate(ScenePresence avatar)
-                    {
-                        if (!avatar.IsChildAgent && avatar.ParentID == LocalId)
-                            avatar.StandUp();
+                    if (!avatar.IsChildAgent && avatar.ParentID == LocalId)
+                        avatar.StandUp();
 
-                        if (!silent)
+                    if (!silent)
+                    {
+                        part.ClearUpdateSchedule();
+                        if (part == m_rootPart)
                         {
-                            part.ClearUpdateSchedule();
-                            if (part == m_rootPart)
+                            if (!IsAttachment
+                                || AttachedAvatar == avatar.ControllingClient.AgentId
+                                || !HasPrivateAttachmentPoint)
                             {
-                                if (!IsAttachment
-                                    || AttachedAvatar == avatar.ControllingClient.AgentId
-                                    || !HasPrivateAttachmentPoint)
-                                {
-                                    // Send a kill object immediately
-                                    avatar.ControllingClient.SendKillObject(new List<uint> { part.LocalId });
-                                    // Also, send a terse update; in case race conditions make the object pop again in the client,
-                                    // this update will send another kill object
-                                    m_rootPart.SendTerseUpdateToClient(avatar.ControllingClient);
-                                }
+                                // Send a kill object immediately
+                                avatar.ControllingClient.SendKillObject(new List<uint> { part.LocalId });
                             }
                         }
-                    });
-                }
+                    }
+                });
             }
         }
 
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index bc603ae..ca5951c 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -5420,6 +5420,9 @@ SendFullUpdateToClient(remoteClient, Position) ignores position parameter
 
         public void SendTerseUpdateToClient(IClientAPI remoteClient)
         {
+            if (ParentGroup.IsDeleted)
+                return;
+
             if (ParentGroup.IsAttachment
                 && (ParentGroup.RootPart != this
                     || ParentGroup.AttachedAvatar != remoteClient.AgentId && ParentGroup.HasPrivateAttachmentPoint))