From 9bcf07279513294d58c3076e7d8a6eb5ee64c759 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Mon, 5 Aug 2013 23:44:48 +0100
Subject: Make it possible to switch whether we serialize osd requests per
 endpoint or not, either via config (SerializeOSDRequests in [Network]) or via
 the "debug comms set" console command.

For debug purposes to assess what impact this has on network response in a heavy test environment.
---
 OpenSim/Framework/Console/ConsoleUtil.cs | 22 ++++++++++++++++++-
 OpenSim/Framework/Servers/ServerBase.cs  | 37 ++++++++++++++++++++++++++++++++
 OpenSim/Framework/WebUtil.cs             | 20 +++++++++++++----
 3 files changed, 74 insertions(+), 5 deletions(-)

diff --git a/OpenSim/Framework/Console/ConsoleUtil.cs b/OpenSim/Framework/Console/ConsoleUtil.cs
index 97a86a8..c0ff454 100644
--- a/OpenSim/Framework/Console/ConsoleUtil.cs
+++ b/OpenSim/Framework/Console/ConsoleUtil.cs
@@ -156,7 +156,27 @@ namespace OpenSim.Framework.Console
         }
 
         /// <summary>
-        /// Convert a minimum vector input from the console to an OpenMetaverse.Vector3
+        /// Convert a console integer to an int, automatically complaining if a console is given.
+        /// </summary>
+        /// <param name='console'>Can be null if no console is available.</param>
+        /// <param name='rawConsoleVector'>/param>
+        /// <param name='vector'></param>
+        /// <returns></returns>
+        public static bool TryParseConsoleBool(ICommandConsole console, string rawConsoleString, out bool b)
+        {
+            if (!bool.TryParse(rawConsoleString, out b))
+            {
+                if (console != null)
+                    console.OutputFormat("ERROR: {0} is not a true or false value", rawConsoleString);
+
+                return false;
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// Convert a console integer to an int, automatically complaining if a console is given.
         /// </summary>
         /// <param name='console'>Can be null if no console is available.</param>
         /// <param name='rawConsoleVector'>/param>
diff --git a/OpenSim/Framework/Servers/ServerBase.cs b/OpenSim/Framework/Servers/ServerBase.cs
index 0545bea..824c7e2 100644
--- a/OpenSim/Framework/Servers/ServerBase.cs
+++ b/OpenSim/Framework/Servers/ServerBase.cs
@@ -257,6 +257,12 @@ namespace OpenSim.Framework.Servers
                 (string module, string[] args) => Notice(GetThreadsReport()));
 
             m_console.Commands.AddCommand (
+                "Debug", false, "debug comms set",
+                "debug comms set serialosdreq true|false",
+                "Set comms parameters.  For debug purposes.",
+                HandleDebugCommsSet);
+
+            m_console.Commands.AddCommand (
                 "Debug", false, "debug threadpool set",
                 "debug threadpool set worker|iocp min|max <n>",
                 "Set threadpool parameters.  For debug purposes.",
@@ -284,11 +290,42 @@ namespace OpenSim.Framework.Servers
 
         public void RegisterCommonComponents(IConfigSource configSource)
         {
+            IConfig networkConfig = configSource.Configs["Network"];
+
+            if (networkConfig != null)
+            {
+                WebUtil.SerializeOSDRequestsPerEndpoint = networkConfig.GetBoolean("SerializeOSDRequests", false);
+            }
+    
             m_serverStatsCollector = new ServerStatsCollector();
             m_serverStatsCollector.Initialise(configSource);
             m_serverStatsCollector.Start();
         }
 
+        private void HandleDebugCommsSet(string module, string[] args)
+        {
+            if (args.Length != 5)
+            {
+                Notice("Usage: debug comms set serialosdreq true|false");
+                return;
+            }
+
+            if (args[3] != "serialosdreq")
+            {
+                Notice("Usage: debug comms set serialosdreq true|false");
+                return;
+            }
+
+            bool setSerializeOsdRequests;
+
+            if (!ConsoleUtil.TryParseConsoleBool(m_console, args[4], out setSerializeOsdRequests))
+                return;
+
+            WebUtil.SerializeOSDRequestsPerEndpoint = setSerializeOsdRequests;
+
+            Notice("serialosdreq is now {0}", setSerializeOsdRequests);
+        }
+
         private void HandleDebugThreadpoolSet(string module, string[] args)
         {
             if (args.Length != 6)
diff --git a/OpenSim/Framework/WebUtil.cs b/OpenSim/Framework/WebUtil.cs
index 0e9de59..706b33f 100644
--- a/OpenSim/Framework/WebUtil.cs
+++ b/OpenSim/Framework/WebUtil.cs
@@ -67,6 +67,11 @@ namespace OpenSim.Framework
         public static int RequestNumber { get; internal set; }
 
         /// <summary>
+        /// Control where OSD requests should be serialized per endpoint.
+        /// </summary>
+        public static bool SerializeOSDRequestsPerEndpoint { get; set; }
+
+        /// <summary>
         /// this is the header field used to communicate the local request id
         /// used for performance and debugging
         /// </summary>
@@ -145,10 +150,17 @@ namespace OpenSim.Framework
         
         public static OSDMap ServiceOSDRequest(string url, OSDMap data, string method, int timeout, bool compressed)
         {
-            //lock (EndPointLock(url))
-            //{
-                return ServiceOSDRequestWorker(url,data,method,timeout,compressed);
-            //}
+            if (SerializeOSDRequestsPerEndpoint)
+            {
+                lock (EndPointLock(url))
+                {
+                    return ServiceOSDRequestWorker(url, data, method, timeout, compressed);
+                }
+            }
+            else
+            {
+                return ServiceOSDRequestWorker(url, data, method, timeout, compressed);
+            }
         }
 
         public static void LogOutgoingDetail(Stream outputStream)
-- 
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