This should fix all issues with teleports. One should be able to TP as fast as needed. (Although sometimes Justin's state machine kicks in and doesn't let you) The EventQueues are a hairy mess, and it's very easy to mess things up. But it looks like this commit makes them work right. Here's what's going on:

- Child and root agents are only closed after 15 sec, maybe
- If the user comes back, they aren't closed, and everything is reused
- On the receiving side, clients and scene presences are reused if they already exist
- Caps are always recreated (this is where I spent most of my time!). It turns out that, because the agents carry the seeds around, the seed gets the same URL, except for the root agent coming back to a far away region, which gets a new seed (because we don't know what was its seed in the departing region, and we can't send it back to the client when the agent returns there).

1 files changed, 29 insertions, 32 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 705660d..6d0b13f 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -2805,6 +2805,7 @@ namespace OpenSim.Region.Framework.Scenes
         {
             ScenePresence sp;
             bool vialogin;
+            bool reallyNew = true;
 
             // Validation occurs in LLUDPServer
             //
@@ -2856,6 +2857,7 @@ namespace OpenSim.Region.Framework.Scenes
                     m_log.WarnFormat(
                         "[SCENE]: Already found {0} scene presence for {1} in {2} when asked to add new scene presence",
                         sp.IsChildAgent ? "child" : "root", sp.Name, RegionInfo.RegionName);
+                    reallyNew = false;
                 }
     
                 // We must set this here so that TriggerOnNewClient and TriggerOnClientLogin can determine whether the
@@ -2867,7 +2869,9 @@ namespace OpenSim.Region.Framework.Scenes
                 // places.  However, we still need to do it here for NPCs.
                 CacheUserName(sp, aCircuit);
     
-                EventManager.TriggerOnNewClient(client);
+                if (reallyNew)
+                    EventManager.TriggerOnNewClient(client);
+    
                 if (vialogin)
                     EventManager.TriggerOnClientLogin(client);
             }
@@ -3426,15 +3430,8 @@ namespace OpenSim.Region.Framework.Scenes
                     if (closeChildAgents && isChildAgent)
                     {
                         // Tell a single agent to disconnect from the region.
-                        IEventQueue eq = RequestModuleInterface<IEventQueue>();
-                        if (eq != null)
-                        {
-                            eq.DisableSimulator(RegionInfo.RegionHandle, avatar.UUID);
-                        }
-                        else
-                        {
-                            avatar.ControllingClient.SendShutdownConnectionNotice();
-                        }
+                        // Let's do this via UDP
+                        avatar.ControllingClient.SendShutdownConnectionNotice();
                     }
     
                     // Only applies to root agents.
@@ -3686,21 +3683,29 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     if (!sp.IsChildAgent)
                     {
-                        // We have a zombie from a crashed session. 
-                        // Or the same user is trying to be root twice here, won't work.
-                        // Kill it.
-                        m_log.WarnFormat(
-                            "[SCENE]: Existing root scene presence detected for {0} {1} in {2} when connecting.  Removing existing presence.",
-                            sp.Name, sp.UUID, RegionInfo.RegionName);
-        
-                        if (sp.ControllingClient != null)
-                            sp.ControllingClient.Close(true);
+                        // We have a root agent. Is it in transit?
+                        if (!EntityTransferModule.IsInTransit(sp.UUID))
+                        {
+                            // We have a zombie from a crashed session. 
+                            // Or the same user is trying to be root twice here, won't work.
+                            // Kill it.
+                            m_log.WarnFormat(
+                                "[SCENE]: Existing root scene presence detected for {0} {1} in {2} when connecting.  Removing existing presence.",
+                                sp.Name, sp.UUID, RegionInfo.RegionName);
+
+                            if (sp.ControllingClient != null)
+                                sp.ControllingClient.Close(true);
 
-                        sp = null;
+                            sp = null;
+                        }
+                        else
+                            m_log.WarnFormat("[SCENE]: Existing root scene presence for {0} {1} in {2}, but agent is in trasit", sp.Name, sp.UUID, RegionInfo.RegionName);
                     }
                     else
                     {
+                        // We have a child agent here
                         sp.DoNotCloseAfterTeleport = true;
+                        //m_log.WarnFormat("[SCENE]: Existing child scene presence for {0} {1} in {2}", sp.Name, sp.UUID, RegionInfo.RegionName);
                     }
                 }
 
@@ -3785,9 +3790,12 @@ namespace OpenSim.Region.Framework.Scenes
                             agent.AgentID, RegionInfo.RegionName);
     
                         sp.AdjustKnownSeeds();
-                        
+
                         if (CapsModule != null)
+                        {
                             CapsModule.SetAgentCapsSeeds(agent);
+                            CapsModule.CreateCaps(agent.AgentID);
+                        }
                     }
                 }
 
@@ -5545,17 +5553,6 @@ namespace OpenSim.Region.Framework.Scenes
         {
             reason = "You are banned from the region";
 
-            if (EntityTransferModule.IsInTransit(agentID))
-            {
-                reason = "Agent is still in transit from this region";
-
-                m_log.WarnFormat(
-                    "[SCENE]: Denying agent {0} entry into {1} since region still has them registered as in transit",
-                    agentID, RegionInfo.RegionName);
-
-                return false;
-            }
-
             if (Permissions.IsGod(agentID))
             {
                 reason = String.Empty;