From 7aa32ac6e0992249391b4d62d93c3ebb7bca82bf Mon Sep 17 00:00:00 2001
From: Melanie Thielker <melanie@t-data.com>
Date: Sat, 22 Nov 2008 23:38:25 +0000
Subject: [PATCH] Add root agent tracking to presence module

---
 .../Avatar/InstantMessage/PresenceModule.cs   | 22 ++++++++++++++-----
 .../Region/Environment/Scenes/EventManager.cs |  6 ++---
 OpenSim/Region/Environment/Scenes/Scene.cs    |  2 +-
 3 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/PresenceModule.cs b/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/PresenceModule.cs
index 48c77170a4..003ca8e507 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/PresenceModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/PresenceModule.cs
@@ -50,6 +50,9 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
         private bool m_Gridmode = false;
         private List<Scene> m_Scenes = new List<Scene>();
 
+        private Dictionary<UUID, Scene> m_RootAgents =
+                new Dictionary<UUID, Scene>();
+
         public event PresenceChange OnPresenceChange;
         public event BulkPresenceData OnBulkPresenceData;
 
@@ -69,10 +72,6 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
 
             lock (m_Scenes)
             {
-                if (m_Scenes.Count == 0)
-                {
-                }
-
                 if (m_Gridmode)
                     NotifyMessageServerOfStartup(scene);
 
@@ -119,10 +118,23 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
 
         public void OnConnectionClosed(IClientAPI client)
         {
+            if (!(client.Scene is Scene))
+                return;
+
+            if (!(m_RootAgents.ContainsKey(client.AgentId)))
+                return;
+
+            Scene scene = (Scene)client.Scene;
+
+            if (m_RootAgents[client.AgentId] != scene)
+                return;
+
+            m_RootAgents.Remove(client.AgentId);
         }
 
-        public void OnSetRootAgentScene(UUID agentID)
+        public void OnSetRootAgentScene(UUID agentID, Scene scene)
         {
+            m_RootAgents[agentID] = scene;
         }
 
         private void NotifyMessageServerOfStartup(Scene scene)
diff --git a/OpenSim/Region/Environment/Scenes/EventManager.cs b/OpenSim/Region/Environment/Scenes/EventManager.cs
index cdaff51866..598f8b4b88 100644
--- a/OpenSim/Region/Environment/Scenes/EventManager.cs
+++ b/OpenSim/Region/Environment/Scenes/EventManager.cs
@@ -98,7 +98,7 @@ namespace OpenSim.Region.Environment.Scenes
 
         public delegate void OnPermissionErrorDelegate(UUID user, string reason);
 
-        public delegate void OnSetRootAgentSceneDelegate(UUID agentID);
+        public delegate void OnSetRootAgentSceneDelegate(UUID agentID, Scene scene);
 
         public event OnSetRootAgentSceneDelegate OnSetRootAgentScene;
 
@@ -919,11 +919,11 @@ namespace OpenSim.Region.Environment.Scenes
                 handlerCollidingEnd(localId, colliders);
         }
 
-        public void TriggerSetRootAgentScene(UUID agentID)
+        public void TriggerSetRootAgentScene(UUID agentID, Scene scene)
         {
             handlerSetRootAgentScene = OnSetRootAgentScene;
             if (handlerSetRootAgentScene != null)
-                handlerSetRootAgentScene(agentID);
+                handlerSetRootAgentScene(agentID, scene);
         }
     }
 }
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index 0c5eb62972..d2e797a571 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -4215,7 +4215,7 @@ namespace OpenSim.Region.Environment.Scenes
 
             inv.SetRootAgentScene(agentID, this);
 
-            EventManager.TriggerSetRootAgentScene(agentID);
+            EventManager.TriggerSetRootAgentScene(agentID, this);
         }
 
         public bool NeedSceneCacheClear(UUID agentID)