From ace552ecc53611906e13ceee110b16a05c4d3af5 Mon Sep 17 00:00:00 2001
From: "Justin Clark-Casey (justincc)" <jjustincc@googlemail.com>
Date: Fri, 23 Nov 2012 04:40:49 +0000
Subject: [PATCH] Make "show threads" and "thread abort" console commands
 available on all servers

---
 .../Framework/Servers/BaseOpenSimServer.cs    | 103 +-----------------
 OpenSim/Framework/Servers/ServerBase.cs       |  92 ++++++++++++++++
 OpenSim/Framework/Util.cs                     |  16 ++-
 3 files changed, 103 insertions(+), 108 deletions(-)

diff --git a/OpenSim/Framework/Servers/BaseOpenSimServer.cs b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
index 3f66ab5d1e..c0dc907ddc 100644
--- a/OpenSim/Framework/Servers/BaseOpenSimServer.cs
+++ b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
@@ -27,7 +27,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.IO;
 using System.Reflection;
 using System.Text;
@@ -99,19 +98,6 @@ namespace OpenSim.Framework.Servers
             m_console.Commands.AddCommand("General", false, "shutdown",
                     "shutdown",
                     "Quit the application", HandleQuit);
-
-            m_console.Commands.AddCommand("General", false, "show threads",
-                    "show threads",
-                    "Show thread status", HandleShow);
-
-            m_console.Commands.AddCommand("General", false, "threads abort",
-                    "threads abort <thread-id>",
-                    "Abort a managed thread.  Use \"show threads\" to find possible threads.", HandleThreadsAbort);
-
-            m_console.Commands.AddCommand("General", false, "threads show",
-                    "threads show",
-                    "Show thread status.  Synonym for \"show threads\"",
-                    (string module, string[] args) => Notice(GetThreadsReport()));
         }
         
         /// <summary>
@@ -143,54 +129,6 @@ namespace OpenSim.Framework.Servers
             m_log.Debug(sb);
         }
 
-        /// <summary>
-        /// Get a report about the registered threads in this server.
-        /// </summary>
-        protected string GetThreadsReport()
-        {
-            // This should be a constant field.
-            string reportFormat = "{0,6}   {1,35}   {2,16}   {3,13}   {4,10}   {5,30}";
-
-            StringBuilder sb = new StringBuilder();
-            Watchdog.ThreadWatchdogInfo[] threads = Watchdog.GetThreadsInfo();
-
-            sb.Append(threads.Length + " threads are being tracked:" + Environment.NewLine);
-
-            int timeNow = Environment.TickCount & Int32.MaxValue;
-
-            sb.AppendFormat(reportFormat, "ID", "NAME", "LAST UPDATE (MS)", "LIFETIME (MS)", "PRIORITY", "STATE");
-            sb.Append(Environment.NewLine);
-
-            foreach (Watchdog.ThreadWatchdogInfo twi in threads)
-            {
-                Thread t = twi.Thread;
-                
-                sb.AppendFormat(
-                    reportFormat,
-                    t.ManagedThreadId,
-                    t.Name,
-                    timeNow - twi.LastTick,
-                    timeNow - twi.FirstTick,
-                    t.Priority,
-                    t.ThreadState);
-
-                sb.Append("\n");
-            }
-
-            sb.Append("\n");
-
-            // For some reason mono 2.6.7 returns an empty threads set!  Not going to confuse people by reporting
-            // zero active threads.
-            int totalThreads = Process.GetCurrentProcess().Threads.Count;
-            if (totalThreads > 0)
-                sb.AppendFormat("Total threads active: {0}\n\n", totalThreads);
-
-            sb.Append("Main threadpool (excluding script engine pools)\n");
-            sb.Append(Util.GetThreadPoolReport());
-
-            return sb.ToString();
-        }
-
         /// <summary>
         /// Performs initialisation of the scene, such as loading configuration from disk.
         /// </summary>
@@ -231,46 +169,7 @@ namespace OpenSim.Framework.Servers
         private void HandleQuit(string module, string[] args)
         {
             Shutdown();
-        }
-
-        public override void HandleShow(string module, string[] cmd)
-        {
-            base.HandleShow(module, cmd);
-
-            List<string> args = new List<string>(cmd);
-
-            args.RemoveAt(0);
-
-            string[] showParams = args.ToArray();
-
-            switch (showParams[0])
-            {
-                case "threads":
-                    Notice(GetThreadsReport());
-                    break;
-            }
-        }
-
-        public virtual void HandleThreadsAbort(string module, string[] cmd)
-        {
-            if (cmd.Length != 3)
-            {
-                MainConsole.Instance.Output("Usage: threads abort <thread-id>");
-                return;
-            }
-
-            int threadId;
-            if (!int.TryParse(cmd[2], out threadId))
-            {
-                MainConsole.Instance.Output("ERROR: Thread id must be an integer");
-                return;
-            }
-
-            if (Watchdog.AbortThread(threadId))
-                MainConsole.Instance.OutputFormat("Aborted thread with id {0}", threadId);
-            else
-                MainConsole.Instance.OutputFormat("ERROR - Thread with id {0} not found in managed threads", threadId);
-        }       
+        }      
         
         public string osSecret {
             // Secret uuid for the simulator
diff --git a/OpenSim/Framework/Servers/ServerBase.cs b/OpenSim/Framework/Servers/ServerBase.cs
index b8bc27ec24..47baac8022 100644
--- a/OpenSim/Framework/Servers/ServerBase.cs
+++ b/OpenSim/Framework/Servers/ServerBase.cs
@@ -27,16 +27,19 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;
+using System.Threading;
 using log4net;
 using log4net.Appender;
 using log4net.Core;
 using log4net.Repository;
 using Nini.Config;
 using OpenSim.Framework.Console;
+using OpenSim.Framework.Monitoring;
 
 namespace OpenSim.Framework.Servers
 {
@@ -210,6 +213,22 @@ namespace OpenSim.Framework.Servers
                 "command-script <script>",
                 "Run a command script from file", HandleScript);
 
+            m_console.Commands.AddCommand(
+                "General", false, "show threads",
+                "show threads",
+                "Show thread status", HandleShow);
+
+            m_console.Commands.AddCommand(
+                "General", false, "threads abort",
+                "threads abort <thread-id>",
+                "Abort a managed thread.  Use \"show threads\" to find possible threads.", HandleThreadsAbort);
+
+            m_console.Commands.AddCommand(
+                "General", false, "threads show",
+                "threads show",
+                "Show thread status.  Synonym for \"show threads\"",
+                (string module, string[] args) => Notice(GetThreadsReport()));
+
             m_console.Commands.AddCommand(
                 "General", false, "force gc",
                 "force gc",
@@ -244,6 +263,10 @@ namespace OpenSim.Framework.Servers
                 case "uptime":
                     Notice(GetUptimeReport());
                     break;
+
+                case "threads":
+                    Notice(GetThreadsReport());
+                    break;
             }
         }
 
@@ -555,6 +578,75 @@ namespace OpenSim.Framework.Servers
             return String.Format("Version: {0} (interface version {1})", m_version, VersionInfo.MajorInterfaceVersion);
         }
 
+        /// <summary>
+        /// Get a report about the registered threads in this server.
+        /// </summary>
+        protected string GetThreadsReport()
+        {
+            // This should be a constant field.
+            string reportFormat = "{0,6}   {1,35}   {2,16}   {3,13}   {4,10}   {5,30}";
+
+            StringBuilder sb = new StringBuilder();
+            Watchdog.ThreadWatchdogInfo[] threads = Watchdog.GetThreadsInfo();
+
+            sb.Append(threads.Length + " threads are being tracked:" + Environment.NewLine);
+
+            int timeNow = Environment.TickCount & Int32.MaxValue;
+
+            sb.AppendFormat(reportFormat, "ID", "NAME", "LAST UPDATE (MS)", "LIFETIME (MS)", "PRIORITY", "STATE");
+            sb.Append(Environment.NewLine);
+
+            foreach (Watchdog.ThreadWatchdogInfo twi in threads)
+            {
+                Thread t = twi.Thread;
+                
+                sb.AppendFormat(
+                    reportFormat,
+                    t.ManagedThreadId,
+                    t.Name,
+                    timeNow - twi.LastTick,
+                    timeNow - twi.FirstTick,
+                    t.Priority,
+                    t.ThreadState);
+
+                sb.Append("\n");
+            }
+
+            sb.Append("\n");
+
+            // For some reason mono 2.6.7 returns an empty threads set!  Not going to confuse people by reporting
+            // zero active threads.
+            int totalThreads = Process.GetCurrentProcess().Threads.Count;
+            if (totalThreads > 0)
+                sb.AppendFormat("Total threads active: {0}\n\n", totalThreads);
+
+            sb.Append("Main threadpool (excluding script engine pools)\n");
+            sb.Append(Util.GetThreadPoolReport());
+
+            return sb.ToString();
+        }
+
+        public virtual void HandleThreadsAbort(string module, string[] cmd)
+        {
+            if (cmd.Length != 3)
+            {
+                MainConsole.Instance.Output("Usage: threads abort <thread-id>");
+                return;
+            }
+
+            int threadId;
+            if (!int.TryParse(cmd[2], out threadId))
+            {
+                MainConsole.Instance.Output("ERROR: Thread id must be an integer");
+                return;
+            }
+
+            if (Watchdog.AbortThread(threadId))
+                MainConsole.Instance.OutputFormat("Aborted thread with id {0}", threadId);
+            else
+                MainConsole.Instance.OutputFormat("ERROR - Thread with id {0} not found in managed threads", threadId);
+        } 
+
         /// <summary>
         /// Console output is only possible if a console has been established.
         /// That is something that cannot be determined within this class. So
diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index c369dbcd28..a0c54a027e 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -1741,12 +1741,16 @@ namespace OpenSim.Framework
             StringBuilder sb = new StringBuilder();
             if (FireAndForgetMethod == FireAndForgetMethod.SmartThreadPool)
             {
-                threadPoolUsed = "SmartThreadPool";
-                maxThreads = m_ThreadPool.MaxThreads;
-                minThreads = m_ThreadPool.MinThreads;
-                inUseThreads = m_ThreadPool.InUseThreads;
-                allocatedThreads = m_ThreadPool.ActiveThreads;
-                waitingCallbacks = m_ThreadPool.WaitingCallbacks;
+                // ROBUST currently leaves this the FireAndForgetMethod but never actually initializes the threadpool.
+                if (m_ThreadPool != null)
+                {
+                    threadPoolUsed = "SmartThreadPool";
+                    maxThreads = m_ThreadPool.MaxThreads;
+                    minThreads = m_ThreadPool.MinThreads;
+                    inUseThreads = m_ThreadPool.InUseThreads;
+                    allocatedThreads = m_ThreadPool.ActiveThreads;
+                    waitingCallbacks = m_ThreadPool.WaitingCallbacks;
+                }
             }
             else if (
                 FireAndForgetMethod == FireAndForgetMethod.UnsafeQueueUserWorkItem