Committing the LCO database layer. Native MySQL, no ADO. New reconnect

mechanism to prevent prim loss. Preserve link order on sim restart
and drag copy. Fix drag-copied prims' inventories. Fix persistence
of child prim inventories.

OpenSim/Data/MySQL/Resources/023_RegionStore.sql

@@ -0,0 +1,6 @@
+BEGIN;
+
+ALTER TABLE prims ADD COLUMN LinkNumber integer not null default 0;
+
+COMMIT;
+

OpenSim/Framework/TaskInventoryItem.cs

@@ -329,6 +329,7 @@ namespace OpenSim.Framework
         {
             _itemID = UUID.Random();
             _parentPartID = partID;
+            _parentID = partID;
         }
 
         public TaskInventoryItem()

OpenSim/Region/Environment/Scenes/SceneObjectGroup.cs

@@ -1336,6 +1336,8 @@ namespace OpenSim.Region.Environment.Scenes
 
             dupe.CopyRootPart(m_rootPart, OwnerID, GroupID, userExposed);
 
+            dupe.m_rootPart.LinkNum = m_rootPart.LinkNum;
+
             if (userExposed)
                 dupe.m_rootPart.TrimPermissions();
 
@@ -1368,16 +1370,25 @@ namespace OpenSim.Region.Environment.Scenes
             }
 
             List<SceneObjectPart> partList = new List<SceneObjectPart>(m_parts.Values);
+            partList.Sort(delegate(SceneObjectPart p1, SceneObjectPart p2)
+                {
+                    return p1.LinkNum.CompareTo(p2.LinkNum);
+                }
+            );
+
             foreach (SceneObjectPart part in partList)
             {
                 if (part.UUID != m_rootPart.UUID)
                 {
+                    SceneObjectPart newPart =
                             dupe.CopyPart(part, OwnerID, GroupID, userExposed);
 
+                    newPart.LinkNum = part.LinkNum;
+
                     if (userExposed)
                     {
-                        SetPartOwner(part, cAgentID, cGroupID);
+                        SetPartOwner(newPart, cAgentID, cGroupID);
-                        part.ScheduleFullUpdate();
+                        newPart.ScheduleFullUpdate();
                     }
                 }
             }
@@ -1507,7 +1518,7 @@ namespace OpenSim.Region.Environment.Scenes
         /// <param name="part"></param>
         /// <param name="cAgentID"></param>
         /// <param name="cGroupID"></param>
-        public void CopyPart(SceneObjectPart part, UUID cAgentID, UUID cGroupID, bool userExposed)
+        public SceneObjectPart CopyPart(SceneObjectPart part, UUID cAgentID, UUID cGroupID, bool userExposed)
         {
             SceneObjectPart newPart = part.Copy(m_scene.AllocateLocalId(), OwnerID, GroupID, m_parts.Count, userExposed);
             newPart.SetParent(this);
@@ -1519,6 +1530,7 @@ namespace OpenSim.Region.Environment.Scenes
 
             SetPartAsNonRoot(newPart);
 
+            return newPart;
         }
 
         /// <summary>

OpenSim/Region/Environment/Scenes/SceneObjectPart.cs

@@ -1263,10 +1263,18 @@ if (m_shape != null) {
             dupe._category = _category;
             dupe.m_rezzed = m_rezzed;
 
-            dupe.m_inventory.Items = (TaskInventoryDictionary)dupe.m_inventory.Items.Clone();
+            dupe.m_inventory = new SceneObjectPartInventory(dupe);
+            dupe.m_inventory.Items = (TaskInventoryDictionary)m_inventory.Items.Clone();
 
             if (userExposed)
+            {
                 dupe.ResetIDs(linkNum);
+                dupe.m_inventory.HasInventoryChanged = true;
+            }
+            else
+            {
+                dupe.m_inventory.HasInventoryChanged = m_inventory.HasInventoryChanged;
+            }
 
             // Move afterwards ResetIDs as it clears the localID
             dupe.LocalId = localID;

OpenSim/Region/Environment/Scenes/SceneObjectPartInventory.cs

@@ -64,7 +64,7 @@ namespace OpenSim.Region.Environment.Scenes
         /// <summary>
         /// Tracks whether inventory has changed since the last persistent backup
         /// </summary>
-        protected bool HasInventoryChanged;
+        internal bool HasInventoryChanged;
         
         /// <value>
         /// Inventory serial number
@@ -81,7 +81,11 @@ namespace OpenSim.Region.Environment.Scenes
         protected internal TaskInventoryDictionary Items
         {
             get { return m_items; }
-            set { m_items = value; }
+            set
+            {
+                m_items = value;
+                m_inventorySerial++;
+            }
         }
         
         /// <summary>