From 2d02405186841d5aeea30b608d106212f5fee1c3 Mon Sep 17 00:00:00 2001
From: Melanie
Date: Sun, 23 Sep 2012 23:16:25 +0200
Subject: Change the poll service to use a thread pool for replies to make sure
 the event queues aren't blocked by other traffic.

---
 .../HttpServer/PollServiceRequestManager.cs        | 45 ++++++++++++++++++----
 prebuild.xml                                       |  1 +
 2 files changed, 39 insertions(+), 7 deletions(-)

diff --git a/OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs b/OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs
index db088e7..c13c65b 100644
--- a/OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs
+++ b/OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs
@@ -33,6 +33,7 @@ using log4net;
 using HttpServer;
 using OpenSim.Framework;
 using OpenSim.Framework.Monitoring;
+using Amib.Threading;
 
 
 /*
@@ -185,6 +186,8 @@ namespace OpenSim.Framework.Servers.HttpServer
         private bool m_running = true;
         private int slowCount = 0;
 
+        private SmartThreadPool m_threadPool = new SmartThreadPool(20000, 12, 2);
+
 //        private int m_timeout = 1000;   //  increase timeout 250; now use the event one
 
         public PollServiceRequestManager(BaseHttpServer pSrv, uint pWorkerThreadCount, int pTimeout)
@@ -353,18 +356,46 @@ namespace OpenSim.Framework.Servers.HttpServer
                                 continue;
                             }
 
-                            try
+                            // "Normal" means the viewer evebt queue. We need to push these out fast.
+                            // Process them inline. The rest go to the thread pool.
+                            if (req.PollServiceArgs.Type == PollServiceEventArgs.EventType.Normal)
                             {
-                                Hashtable responsedata = req.PollServiceArgs.GetEvents(req.RequestID, req.PollServiceArgs.Id, str.ReadToEnd());
-                                DoHTTPGruntWork(m_server, req, responsedata);
+                                try
+                                {
+                                    Hashtable responsedata = req.PollServiceArgs.GetEvents(req.RequestID, req.PollServiceArgs.Id, str.ReadToEnd());
+                                    DoHTTPGruntWork(m_server, req, responsedata);
+                                }
+                                catch (ObjectDisposedException) // Browser aborted before we could read body, server closed the stream
+                                {
+                                    // Ignore it, no need to reply
+                                }
+                                finally
+                                {
+                                    str.Close();
+                                }
                             }
-                            catch (ObjectDisposedException) // Browser aborted before we could read body, server closed the stream
+                            else
                             {
-                                // Ignore it, no need to reply
+                                m_threadPool.QueueWorkItem(x =>
+                                {
+                                    try
+                                    {
+                                        Hashtable responsedata = req.PollServiceArgs.GetEvents(req.RequestID, req.PollServiceArgs.Id, str.ReadToEnd());
+                                        DoHTTPGruntWork(m_server, req, responsedata);
+                                    }
+                                    catch (ObjectDisposedException) // Browser aborted before we could read body, server closed the stream
+                                    {
+                                        // Ignore it, no need to reply
+                                    }
+                                    finally
+                                    {
+                                        str.Close();
+                                    }
+
+                                    return null;
+                                }, null);
                             }
 
-                            str.Close();
-
                         }
                         else
                         {
diff --git a/prebuild.xml b/prebuild.xml
index 05b36d0..afcae1c 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -162,6 +162,7 @@
       <Reference name="XMLRPC" path="../../../../bin/"/>
       <Reference name="log4net" path="../../../../bin/"/>
       <Reference name="HttpServer_OpenSim" path="../../../../bin/"/>
+      <Reference name="SmartThreadPool"/>
 
       <Files>
         <Match pattern="*.cs" recurse="true">
-- 
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