From e77f91311678154390d09b586fbd8162cd3bb601 Mon Sep 17 00:00:00 2001
From: UbitUmarov <ajlduarte@sapo.pt>
Date: Wed, 16 Nov 2016 22:34:56 +0000
Subject: [PATCH] minor: dont let rcvd agentupdates time jump back

---
 OpenSim/Framework/AgentUpdateArgs.cs          |  1 +
 .../ClientStack/Linden/UDP/LLClientView.cs    |  7 +++-
 .../Region/Framework/Scenes/ScenePresence.cs  | 38 +++++++++++++------
 3 files changed, 34 insertions(+), 12 deletions(-)

diff --git a/OpenSim/Framework/AgentUpdateArgs.cs b/OpenSim/Framework/AgentUpdateArgs.cs
index eaa7902d8d..f04d692092 100644
--- a/OpenSim/Framework/AgentUpdateArgs.cs
+++ b/OpenSim/Framework/AgentUpdateArgs.cs
@@ -82,6 +82,7 @@ namespace OpenSim.Framework
         public Vector3 ClientAgentPosition;
         public bool UseClientAgentPosition;
         public bool NeedsCameraCollision;
+        public uint lastpacketSequence;
 
         public AgentUpdateArgs()
         {
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index 46c6a19e9d..8d07bae155 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -6251,9 +6251,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 return false;
             }
 
+            uint seq = packet.Header.Sequence;
+
             TotalAgentUpdates++;
             // dont let ignored updates pollute this throttles
-            if(SceneAgent == null || SceneAgent.IsChildAgent || SceneAgent.IsInTransit)
+            if(SceneAgent == null || SceneAgent.IsChildAgent || 
+                    SceneAgent.IsInTransit || seq <= m_thisAgentUpdateArgs.lastpacketSequence )
             {
                 // throttle reset is done at MoveAgentIntoRegion()
                 // called by scenepresence on completemovement
@@ -6261,6 +6264,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 return true;
             }
 
+            m_thisAgentUpdateArgs.lastpacketSequence = seq;
+
             bool movement = CheckAgentMovementUpdateSignificance(x);
             bool camera = CheckAgentCameraUpdateSignificance(x);
 
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 3378eade7c..f73d54e249 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -2318,7 +2318,7 @@ namespace OpenSim.Region.Framework.Scenes
                 Vector3 tocam = CameraPosition - posAdjusted;
 
                 float distTocamlen = tocam.LengthSquared();
-                if (distTocamlen > 0.08f && distTocamlen < 400)
+                if (distTocamlen > 0.01f && distTocamlen < 400)
                 {
                     distTocamlen = (float)Math.Sqrt(distTocamlen);
                     tocam *= (1.0f / distTocamlen);
@@ -4378,16 +4378,12 @@ namespace OpenSim.Region.Framework.Scenes
             m_log.DebugFormat(
                 "[SCENE PRESENCE]: Closing child agents. Checking {0} regions in {1}",
                 knownRegions.Count, Scene.RegionInfo.RegionName);
-            //DumpKnownRegions();
 
             Util.RegionHandleToRegionLoc(newRegionHandle, out newRegionX, out newRegionY);
 
             uint x, y;
             spRegionSizeInfo regInfo;
 
-            // this should not be here
-            IEventQueue eventQueue = Scene.RequestModuleInterface<IEventQueue>();
-
             foreach (ulong handle in knownRegions)
             {
                 // Don't close the agent on this region yet
@@ -4400,16 +4396,10 @@ namespace OpenSim.Region.Framework.Scenes
                         Util.RegionHandleToRegionLoc(handle, out x, out y);
                         if (m_knownChildRegionsSizeInfo.TryGetValue(handle, out regInfo))
                         {
-
-                            //                    m_log.Debug("---> x: " + x + "; newx:" + newRegionX + "; Abs:" + (int)Math.Abs((int)(x - newRegionX)));
-                            //                    m_log.Debug("---> y: " + y + "; newy:" + newRegionY + "; Abs:" + (int)Math.Abs((int)(y - newRegionY)));
                             if (Util.IsOutsideView(RegionViewDistance, x, newRegionX, y, newRegionY,
                                 regInfo.sizeX, regInfo.sizeY, newRegionSizeX, newRegionSizeY))
                             {
                                 byebyeRegions.Add(handle);
-                                // this should not be here
-//                                if(eventQueue != null)
-///                                    eventQueue.DisableSimulator(handle,UUID);
                             }
                         }
                         else
@@ -4445,6 +4435,32 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        public void closeAllChildAgents()
+        {
+            List<ulong> byebyeRegions = new List<ulong>();
+            List<ulong> knownRegions = KnownRegionHandles;
+            foreach (ulong handle in knownRegions)
+            {
+                if (handle != Scene.RegionInfo.RegionHandle)
+                {
+                    byebyeRegions.Add(handle);
+                    RemoveNeighbourRegion(handle);
+                    Scene.CapsModule.DropChildSeed(UUID, handle);
+                }
+            }
+
+            if (byebyeRegions.Count > 0)
+            {
+                m_log.Debug("[SCENE PRESENCE]: Closing " + byebyeRegions.Count + " child agents");
+
+                AgentCircuitData acd = Scene.AuthenticateHandler.GetAgentCircuitData(UUID);
+                string auth = string.Empty;
+                if (acd != null)
+                    auth = acd.SessionID.ToString();
+                m_scene.SceneGridService.SendCloseChildAgentConnections(ControllingClient.AgentId, auth, byebyeRegions);
+            }
+        }
+
         #endregion
 
         /// <summary>