4 files changed, 99 insertions, 25 deletions

diff --git a/OpenSim/Region/Framework/Interfaces/IRegionCombinerModule.cs b/OpenSim/Region/Framework/Interfaces/IRegionCombinerModule.cs
new file mode 100644
index 0000000..ca4ed5c
--- /dev/null
+++ b/OpenSim/Region/Framework/Interfaces/IRegionCombinerModule.cs
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenSim.Region.Framework.Scenes;
+using System.IO;
+using OpenMetaverse;
+
+namespace OpenSim.Region.Framework.Interfaces
+{
+    public interface IRegionCombinerModule
+    {
+        /// <summary>
+        /// Does the given id belong to the root region of a megaregion?
+        /// </summary>
+        bool IsRootForMegaregion(UUID sceneId);
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 3e11db3..e3bd527 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -591,13 +591,18 @@ namespace OpenSim.Region.Framework.Scenes
             get { return m_sceneGraph.Entities; }
         }
 
-        // can be closest/random/sequence
-        private string m_SpawnPointRouting = "closest";
+        
         // used in sequence see: SpawnPoint()
         private int m_SpawnPoint;
+        // can be closest/random/sequence
         public string SpawnPointRouting
         {
-            get { return m_SpawnPointRouting; }
+            get; private set;
+        }
+        // allow landmarks to pass
+        public bool TelehubAllowLandmarks
+        {
+            get; private set;
         }
 
         #endregion Properties
@@ -737,7 +742,8 @@ namespace OpenSim.Region.Framework.Scenes
                         m_maxPhys = RegionInfo.PhysPrimMax;
                     }
 
-                    m_SpawnPointRouting = startupConfig.GetString("SpawnPointRouting", "closest");
+                    SpawnPointRouting = startupConfig.GetString("SpawnPointRouting", "closest");
+                    TelehubAllowLandmarks = startupConfig.GetBoolean("TelehubAllowLandmark", false);
 
                     // Here, if clamping is requested in either global or
                     // local config, it will be used
@@ -2794,7 +2800,8 @@ namespace OpenSim.Region.Framework.Scenes
             if (sp == null)
             {
                 m_log.DebugFormat(
-                    "[SCENE]: Adding new child scene presence {0} to scene {1} at pos {2}", client.Name, RegionInfo.RegionName, client.StartPos);
+                    "[SCENE]: Adding new child scene presence {0} {1} to scene {2} at pos {3}",
+                    client.Name, client.AgentId, RegionInfo.RegionName, client.StartPos);
 
                 m_clientManager.Add(client);
                 SubscribeToClientEvents(client);
@@ -4098,6 +4105,7 @@ namespace OpenSim.Region.Framework.Scenes
                 return false;
             }
 
+            // TODO: This check should probably be in QueryAccess().
             ILandObject nearestParcel = GetNearestAllowedParcel(cAgentData.AgentID, Constants.RegionSize / 2, Constants.RegionSize / 2);
             if (nearestParcel == null)
             {
@@ -4108,14 +4116,8 @@ namespace OpenSim.Region.Framework.Scenes
                 return false;
             }
 
-            int num = m_sceneGraph.GetNumberOfScenePresences();
-
-            if (num >= RegionInfo.RegionSettings.AgentLimit)
-            {
-                if (!Permissions.IsAdministrator(cAgentData.AgentID))
-                    return false;
-            }
-
+            // We have to wait until the viewer contacts this region after receiving EAC.
+            // That calls AddNewClient, which finally creates the ScenePresence
             ScenePresence childAgentUpdate = WaitGetScenePresence(cAgentData.AgentID);
 
             if (childAgentUpdate != null)
@@ -4159,14 +4161,28 @@ namespace OpenSim.Region.Framework.Scenes
             return false;
         }
 
+        /// <summary>
+        /// Poll until the requested ScenePresence appears or we timeout.
+        /// </summary>
+        /// <returns>The scene presence is found, else null.</returns>
+        /// <param name='agentID'></param>
         protected virtual ScenePresence WaitGetScenePresence(UUID agentID)
         {
             int ntimes = 10;
-            ScenePresence childAgentUpdate = null;
-            while ((childAgentUpdate = GetScenePresence(agentID)) == null && (ntimes-- > 0))
+            ScenePresence sp = null;
+            while ((sp = GetScenePresence(agentID)) == null && (ntimes-- > 0))
                 Thread.Sleep(1000);
-            return childAgentUpdate;
 
+            if (sp == null)
+                m_log.WarnFormat(
+                    "[SCENE PRESENCE]: Did not find presence with id {0} in {1} before timeout",
+                    agentID, RegionInfo.RegionName);
+//            else
+//                m_log.DebugFormat(
+//                    "[SCENE PRESENCE]: Found presence {0} {1} {2} in {3} after {4} waits",
+//                    sp.Name, sp.UUID, sp.IsChildAgent ? "child" : "root", RegionInfo.RegionName, 10 - ntimes);
+
+            return sp;
         }
 
         public virtual bool IncomingRetrieveRootAgent(UUID id, out IAgentData agent)
@@ -5493,13 +5509,22 @@ Environment.Exit(1);
                 return true;
             }
 
-            int num = m_sceneGraph.GetNumberOfScenePresences();
+            // FIXME: Root agent count is currently known to be inaccurate.  This forces a recount before we check.
+            // However, the long term fix is to make sure root agent count is always accurate.
+            m_sceneGraph.RecalculateStats();
+
+            int num = m_sceneGraph.GetRootAgentCount();
 
             if (num >= RegionInfo.RegionSettings.AgentLimit)
             {
                 if (!Permissions.IsAdministrator(agentID))
                 {
                     reason = "The region is full";
+
+                    m_log.DebugFormat(
+                        "[SCENE]: Denying presence with id {0} entry into {1} since region is at agent limit of {2}",
+                        agentID, RegionInfo.RegionName, RegionInfo.RegionSettings.AgentLimit);
+
                     return false;
                 }
             }
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index 00f76e0..23a0550 100644
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -860,11 +860,6 @@ namespace OpenSim.Region.Framework.Scenes
             return m_scenePresenceArray;
         }
 
-        public int GetNumberOfScenePresences()
-        {
-            return m_scenePresenceArray.Count;
-        }
-
         /// <summary>
         /// Request a scene presence by UUID. Fast, indexed lookup.
         /// </summary>
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 913942f..e0872d0 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1299,6 +1299,12 @@ namespace OpenSim.Region.Framework.Scenes
                 Scene.SimulationService.ReleaseAgent(m_originRegionID, UUID, m_callbackURI);
                 m_callbackURI = null;
             }
+//            else
+//            {
+//                m_log.DebugFormat(
+//                    "[SCENE PRESENCE]: No callback provided on CompleteMovement of {0} {1} to {2}",
+//                    client.Name, client.AgentId, m_scene.RegionInfo.RegionName);
+//            }
 
             ValidateAndSendAppearanceAndAgentData();
 
@@ -2691,7 +2697,7 @@ namespace OpenSim.Region.Framework.Scenes
             // If we are using the the cached appearance then send it out to everyone
             if (cachedappearance)
             {
-                m_log.DebugFormat("[SCENEPRESENCE]: baked textures are in the cache for {0}", Name);
+                m_log.DebugFormat("[SCENE PRESENCE]: baked textures are in the cache for {0}", Name);
 
                 // If the avatars baked textures are all in the cache, then we have a 
                 // complete appearance... send it out, if not, then we'll send it when
@@ -3153,7 +3159,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void ChildAgentDataUpdate(AgentData cAgentData)
         {
-            //m_log.Debug("   >>> ChildAgentDataUpdate <<< " + Scene.RegionInfo.RegionName);
+//            m_log.Debug("   >>> ChildAgentDataUpdate <<< " + Scene.RegionInfo.RegionName);
             if (!IsChildAgent)
                 return;
 
@@ -3297,6 +3303,9 @@ namespace OpenSim.Region.Framework.Scenes
             m_originRegionID = cAgent.RegionID;
 
             m_callbackURI = cAgent.CallbackURI;
+//            m_log.DebugFormat(
+//                "[SCENE PRESENCE]: Set callback for {0} in {1} to {2} in CopyFrom()",
+//                Name, m_scene.RegionInfo.RegionName, m_callbackURI);
 
             m_pos = cAgent.Position;
             m_velocity = cAgent.Velocity;
@@ -4120,7 +4129,7 @@ namespace OpenSim.Region.Framework.Scenes
         {
             if ((m_teleportFlags & (TeleportFlags.ViaLogin | TeleportFlags.ViaRegionID)) ==
                 (TeleportFlags.ViaLogin | TeleportFlags.ViaRegionID) ||
-                (m_teleportFlags & TeleportFlags.ViaLandmark) != 0 ||
+                (m_scene.TelehubAllowLandmarks == true ? false : ((m_teleportFlags & TeleportFlags.ViaLandmark) != 0 )) ||
                 (m_teleportFlags & TeleportFlags.ViaLocation) != 0 ||
                 (m_teleportFlags & Constants.TeleportFlags.ViaHGLogin) != 0)
             {