From cf24069227f9a32272c873d4423e2e11f5da25a8 Mon Sep 17 00:00:00 2001
From: Mic Bowman
Date: Thu, 3 Feb 2011 12:43:46 -0800
Subject: Change UpdateAgent (for changes in agent position) to be sent once to
 each simulator rather than once to each region. This should help with some of
 the delays caused by multiple outstanding requests to a single service point.

---
 .../Framework/Scenes/SceneCommunicationService.cs  | 43 +++++++++++-----------
 1 file changed, 22 insertions(+), 21 deletions(-)

(limited to 'OpenSim/Region/Framework/Scenes')

diff --git a/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs b/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
index f8ff308..837e655 100644
--- a/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
@@ -193,7 +193,8 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public delegate void SendChildAgentDataUpdateDelegate(AgentPosition cAgentData, UUID scopeID, ulong regionHandle);
+        public delegate void SendChildAgentDataUpdateDelegate(AgentPosition cAgentData, UUID scopeID, GridRegion dest);
+        
 
         /// <summary>
         /// This informs all neighboring regions about the settings of it's child agent.
@@ -202,31 +203,17 @@ namespace OpenSim.Region.Framework.Scenes
         /// This contains information, such as, Draw Distance, Camera location, Current Position, Current throttle settings, etc.
         ///
         /// </summary>
-        private void SendChildAgentDataUpdateAsync(AgentPosition cAgentData, UUID scopeID, ulong regionHandle)
+        private void SendChildAgentDataUpdateAsync(AgentPosition cAgentData, UUID scopeID, GridRegion dest)
         {
             //m_log.Info("[INTERGRID]: Informing neighbors about my agent in " + m_regionInfo.RegionName);
             try
             {
-                //m_commsProvider.InterRegion.ChildAgentUpdate(regionHandle, cAgentData);
-                uint x = 0, y = 0;
-                Utils.LongToUInts(regionHandle, out x, out y);
-                GridRegion destination = m_scene.GridService.GetRegionByPosition(UUID.Zero, (int)x, (int)y);
-                m_scene.SimulationService.UpdateAgent(destination, cAgentData);
+                m_scene.SimulationService.UpdateAgent(dest, cAgentData);
             }
             catch
             {
                 // Ignore; we did our best
             }
-
-            //if (regionAccepted)
-            //{
-            //    //m_log.Info("[INTERGRID]: Completed sending a neighbor an update about my agent");
-            //}
-            //else
-            //{
-            //    //m_log.Info("[INTERGRID]: Failed sending a neighbor an update about my agent");
-            //}
-                
         }
 
         private void SendChildAgentDataUpdateCompleted(IAsyncResult iar)
@@ -240,14 +227,28 @@ namespace OpenSim.Region.Framework.Scenes
             // This assumes that we know what our neighbors are.
             try
             {
+                uint x = 0, y = 0;
+                List<string> simulatorList = new List<string>();
                 foreach (ulong regionHandle in presence.KnownChildRegionHandles)
                 {
                     if (regionHandle != m_regionInfo.RegionHandle)
                     {
-                        SendChildAgentDataUpdateDelegate d = SendChildAgentDataUpdateAsync;
-                        d.BeginInvoke(cAgentData, m_regionInfo.ScopeID, regionHandle,
-                                      SendChildAgentDataUpdateCompleted,
-                                      d);
+                        // we only want to send one update to each simulator; the simulator will
+                        // hand it off to the regions where a child agent exists, this does assume
+                        // that the region position is cached or performance will degrade
+                        Utils.LongToUInts(regionHandle, out x, out y);
+                        GridRegion dest = m_scene.GridService.GetRegionByPosition(UUID.Zero, (int)x, (int)y);
+                        if (! simulatorList.Contains(dest.ServerURI))
+                        {
+                            // we havent seen this simulator before, add it to the list
+                            // and send it an update
+                            simulatorList.Add(dest.ServerURI);
+
+                            SendChildAgentDataUpdateDelegate d = SendChildAgentDataUpdateAsync;
+                            d.BeginInvoke(cAgentData, m_regionInfo.ScopeID, dest,
+                                          SendChildAgentDataUpdateCompleted,
+                                          d);
+                        }
                     }
                 }
             }
-- 
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