From 5a2d4d888c02bef984f42eecaec62164a1e58b72 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Thu, 18 Jul 2013 23:05:45 +0100
Subject: Hack in console command "debug lludp toggle agentupdate" to allow
 AgentUpdate in packets to be discarded at a very early stage.

Enabling this will stop anybody from moving on a sim, though all other updates should be unaffected.
Appears to make some cpu difference on very basic testing with a static standing avatar (though not all that much).
Need to see the results with much higher av numbers.
---
 .../Region/ClientStack/Linden/UDP/LLUDPServer.cs   | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'OpenSim')

diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
index a1085fa..78d4165 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
@@ -572,6 +572,14 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 "debug lludp status",
                 "Return status of LLUDP packet processing.",
                 HandleStatusCommand);
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp toggle agentupdate",
+                "debug lludp toggle agentupdate",
+                "Toggle whether agentupdate packets are processed or simply discarded.",
+                HandleAgentUpdateCommand);
         }
 
         private void HandlePacketCommand(string module, string[] args)
@@ -706,6 +714,19 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             }
         }
 
+        bool m_discardAgentUpdates;
+
+        private void HandleAgentUpdateCommand(string module, string[] args)
+        {
+            if (SceneManager.Instance.CurrentScene != null && SceneManager.Instance.CurrentScene != m_scene)
+                return;
+
+            m_discardAgentUpdates = !m_discardAgentUpdates;
+
+            MainConsole.Instance.OutputFormat(
+                "Discard AgentUpdates now {0} for {1}", m_discardAgentUpdates, m_scene.Name);
+        }
+
         private void HandleStatusCommand(string module, string[] args)
         {
             if (SceneManager.Instance.CurrentScene != null && SceneManager.Instance.CurrentScene != m_scene)
@@ -1286,6 +1307,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             LogPacketHeader(true, udpClient.CircuitCode, 0, packet.Type, (ushort)packet.Length);
             #endregion BinaryStats
 
+            if (m_discardAgentUpdates && packet.Type == PacketType.AgentUpdate)
+                return;
+
             #region Ping Check Handling
 
             if (packet.Type == PacketType.StartPingCheck)
-- 
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