Fixed bugs in llCreateLink to sync LinkObject properly.

Also, added logs for debug purposes.

OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/SymmetricSync/RegionSyncModule.cs

@@ -432,6 +432,9 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
                 partNum++;
             }
 
+            m_log.Debug(LogHeader + " to SendLinkObject to link " + children.Count + " parts to " + root.Name);
+            m_log.Debug("LinkedObject: "+sogxml);
+
             SymmetricSyncMessage rsm = new SymmetricSyncMessage(SymmetricSyncMessage.MsgType.LinkObject, OSDParser.SerializeJsonString(data));
             SendObjectUpdateToRelevantSyncConnectors(linkedGroup, rsm);
         }
@@ -764,6 +767,8 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
                 data["LastUpdateTimeStamp"] = OSD.FromLong(updatedPart.BucketSyncInfoList[bucketName].LastUpdateTimeStamp);
                 data["LastUpdateActorID"] = OSD.FromString(updatedPart.BucketSyncInfoList[bucketName].LastUpdateActorID);
 
+                m_log.Debug(LogHeader + " Send out Physics Bucket updates for " + updatedPart.Name + ". GroupPosition: " + updatedPart.GroupPosition.ToString() + ", Position = " + pa.Position);
+
                 SymmetricSyncMessage syncMsg = new SymmetricSyncMessage(SymmetricSyncMessage.MsgType.UpdatedBucketProperties, OSDParser.SerializeJsonString(data));
                 //m_log.DebugFormat("{0}: PhysBucketSender for {1}, pos={2}", LogHeader, updatedPart.UUID.ToString(), pa.Position.ToString());
                 SendObjectUpdateToRelevantSyncConnectors(updatedPart, syncMsg);
@@ -838,6 +843,9 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
             {
                 //string sogxml = SceneObjectSerializer.ToXml2Format(sog);
                 //SymmetricSyncMessage syncMsg = new SymmetricSyncMessage(SymmetricSyncMessage.MsgType.UpdatedObject, sogxml);
+
+                m_log.Debug(LogHeader + " send " + syncMsg.Type.ToString() + " about "+sog.Name+"," + sog.UUID+ " to " + connector.OtherSideActorID);
+
                 connector.EnqueueOutgoingUpdate(sog.UUID, syncMsg.ToBytes());
             }
         }
@@ -1518,6 +1526,14 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
             string sogxml = Encoding.ASCII.GetString(msg.Data, 0, msg.Length);
             SceneObjectGroup sog = SceneObjectSerializer.FromXml2Format(sogxml);
 
+            //SYNC DEBUG
+            string partnames = "";
+            foreach (SceneObjectPart part in sog.Parts)
+            {
+                partnames += "(" + part.Name + ", " + part.UUID + ")";
+            }
+            m_log.Debug(LogHeader+" received "+msg.Type.ToString()+" from "+senderActorID+" about obj "+sog.Name+", "+sog.UUID+"; parts -- "+partnames);
+
             if (sog.IsDeleted)
             {
                 SymmetricSyncMessage.HandleTrivial(LogHeader, msg, String.Format("Ignoring update on deleted object, UUID: {0}.", sog.UUID));
@@ -1696,6 +1712,7 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
 
         private void HandleLinkObject(SymmetricSyncMessage msg, string senderActorID)
         {
+
             // Get the data from message and error check
             OSDMap data = DeserializeMessage(msg);
             if (data == null)
@@ -1717,6 +1734,9 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
                 childrenIDs.Add(data[partTempID].AsUUID());
             }
 
+            m_log.Debug(LogHeader + " received LinkObject from " + senderActorID);
+            //m_log.Debug("LinkedObject: " + sogxml);
+
             m_scene.LinkObjectBySync(linkedGroup, rootID, childrenIDs);
 
             //if this is a relay node, forwards the event

OpenSim/Region/Framework/Scenes/Scene.Inventory.cs

@@ -2198,7 +2198,11 @@ namespace OpenSim.Region.Framework.Scenes
             AddNewSceneObject(group, true, pos, rot, vel);
 
             //SYNC DEBUG
-            m_log.DebugFormat("[SCENE] RezObject {0} with InvItem name {1} at pos {2}", group.UUID.ToString(), item.Name, group.RootPart.GroupPosition.ToString());
+            string partnames = "";
+            foreach (SceneObjectPart part in group.Parts){
+                partnames += "(" + part.Name + ", " + part.UUID + ")"; 
+            }
+            m_log.DebugFormat("[SCENE] RezObject {0} with InvItem name {1} at pos {2} with parts {3}", group.UUID.ToString(), item.Name, group.RootPart.GroupPosition.ToString(), partnames);
 
             // We can only call this after adding the scene object, since the scene object references the scene
             // to find out if scripts should be activated at all.

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -791,11 +791,14 @@ namespace OpenSim.Region.Framework.Scenes
                     continue;
                 }
 
-                m_log.Debug("to link part " + part.DebugObjectPartProperties());
+                //m_log.Debug("to link part " + part.DebugObjectPartProperties());
+                m_log.Debug("to link part " + part.Name + "," + part.UUID + "; its SOG has " + part.ParentGroup.Parts + " parts");
 
                 children.Add(part);
             }
 
+            //m_log.Debug("to link " + children.Count + " parts with " + root.Name);
+
             //Leverage the LinkObject implementation to get the book keeping of Group and Parts relations right
             m_sceneGraph.LinkObjectsBySync(root, children);
 

OpenSim/Region/Framework/Scenes/SceneGraph.cs

@@ -2018,7 +2018,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
             else
             {
-                m_log.Debug("AddSceneObjectByStateSynch to be called");
+                m_log.Debug(updatedSog.Name+" "+updatedSog.UUID+" not found in Entities list. Need to add");
                 AddSceneObjectByStateSynch(updatedSog);
                 updateResult = Scene.ObjectUpdateResult.New;
             }
@@ -2062,6 +2062,8 @@ namespace OpenSim.Region.Framework.Scenes
             }
             m_numPrim += children.Length;
 
+            m_log.Debug("Attached obj " + sceneObject.Name + "," + sceneObject.UUID + " to Scene");
+
             sceneObject.AttachToScene(m_parentScene);
 
             //Take some special care of the case of this object being an attachment

OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs

@@ -2909,6 +2909,7 @@ namespace OpenSim.Region.Framework.Scenes
             //we need to do a terse update even if the move wasn't allowed
             // so that the position is reset in the client (the object snaps back)
             //ScheduleGroupForTerseUpdate();
+            m_log.Debug(this.Name + " GroupPosition changed to " + AbsolutePosition.ToString());
             List<SceneObjectPartProperties> updatedProperties = new List<SceneObjectPartProperties>() { SceneObjectPartProperties.GroupPosition };
             if (IsAttachment)
             {

OpenSim/Region/Framework/Scenes/SceneObjectPart.cs

@@ -5504,15 +5504,33 @@ namespace OpenSim.Region.Framework.Scenes
         //buckets may not be filled at all in "updatedPart".
         private void PhysicsBucketUpdateProcessor(Object updatedPartO, string bucketName)
         {
+            SceneObjectPart localPart = this;
+
+            if (updatedPartO is SceneObjectPart)
+            {
+                SceneObjectPart updatedPart = (SceneObjectPart)updatedPartO;
+
+                localPart.GroupPosition = updatedPart.GroupPosition;
+                localPart.OffsetPosition = updatedPart.OffsetPosition;
+                localPart.Scale = updatedPart.Scale;
+                localPart.Velocity = updatedPart.Velocity;
+                localPart.AngularVelocity = updatedPart.AngularVelocity;
+                localPart.RotationOffset = updatedPart.RotationOffset;
+                return;
+            }
+
             if (!(updatedPartO is OSDMap)) return;
             OSDMap data = (OSDMap)updatedPartO;
 
             //If needed, we could define new set functions for these properties, and cast this SOP to SOPBase to 
             //invoke the set functions in SOPBase 
             //SceneObjectPartBase localPart = (SceneObjectPartBase)this; 
-            SceneObjectPart localPart = this;
+            //SceneObjectPart localPart = this;
             PhysicsActor pa = localPart.PhysActor;
 
+            m_log.Debug("Received Physics Bucket updates for " + localPart.Name + ". GroupPosition: " + data["GroupPosition"].AsVector3().ToString()
+                + ", Position = " + data["Position"].AsVector3().ToString());
+
             //m_log.DebugFormat("{0}: PhysicsBucketUpdateProcessor. pos={1}", "[SCENE OBJECT PART]", data["Position"].AsVector3().ToString());
 
             lock (m_bucketUpdateLocks[bucketName])
@@ -5618,6 +5636,9 @@ namespace OpenSim.Region.Framework.Scenes
                     string bucketName = m_primPropertyBucketMap[property];
                     //m_bucketSyncTainted[bucketName] = true;
                     m_bucketSyncInfoList[bucketName].TaintBucket();
+
+                    m_log.Debug(this.Name + ": " + property.ToString() + " just changed. Tainted " + bucketName);
+                    
                 }
             }
         }
@@ -5758,6 +5779,8 @@ namespace OpenSim.Region.Framework.Scenes
                 //Second, if need to update local properties, call each bucket's update process
                 if (m_bucketUpdateProcessors.ContainsKey(bucketName))
                 {
+                    m_log.Debug("Update properties in " + bucketName + " buckets");
+
                     m_bucketUpdateProcessors[bucketName](updatedPart, bucketName);
                     partUpdateResult = Scene.ObjectUpdateResult.Updated;
                 }

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

@@ -3567,12 +3567,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 item = m_host.TaskInventory[invItemID];
             }
 
+            /*
             if ((item.PermsMask & ScriptBaseClass.PERMISSION_CHANGE_LINKS) == 0
                 && !m_automaticLinkPermission)
             {
                 ShoutError("Script trying to link but PERMISSION_CHANGE_LINKS permission not set!");
                 return;
             }
+            */
 
             IClientAPI client = null;
             ScenePresence sp = World.GetScenePresence(item.PermsGranter);
@@ -3585,6 +3587,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return; // Fail silently if attached
             SceneObjectGroup parentPrim = null, childPrim = null;
 
+            //SYEMMETRIC SYNC
+            List<SceneObjectPart> children = new List<SceneObjectPart>();
+
             if (targetPart != null)
             {
                 if (parent != 0) {
@@ -3596,6 +3601,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     parentPrim = targetPart.ParentGroup;
                     childPrim = m_host.ParentGroup;
                 }
+                children.Add(childPrim.RootPart);
+
 //                byte uf = childPrim.RootPart.UpdateFlag;
                 childPrim.RootPart.UpdateFlag = 0;
                 parentPrim.LinkToGroup(childPrim);
@@ -3614,7 +3621,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 //Tell other actors to link the SceneObjectParts together as a new group. 
                 //parentGroup.SyncInfoUpdate();
-                World.RegionSyncModule.SendLinkObject(parentPrim, parentPrim.RootPart, new List<SceneObjectPart>(childPrim.Parts));
+                World.RegionSyncModule.SendLinkObject(parentPrim, parentPrim.RootPart, children);
             }
             m_host.ScheduleFullUpdate(new List<SceneObjectPartProperties>(){SceneObjectPartProperties.None}); //SendLinkObject above will synchronize the link operation, no need to taint updates here
             //end of SYMMETRIC SYNC

OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs

@@ -741,7 +741,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
                         }
                         catch (Exception e)
                         {
-                             m_log.DebugFormat("[SCRIPT] Exception: {0}", e.Message);
+                            m_log.DebugFormat("[SCRIPT] Exception: {0}", e.Message);
                             m_InEvent = false;
                             m_CurrentEvent = String.Empty;