From 47e7febebcbd12d534b0ba248cb4bfc7da4c9d43 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Fri, 21 Mar 2014 02:06:10 +0000
Subject: Add monitored thread last update times as stats in "show stats all"

These have the format server.thread.<thread-name>
---
 OpenSim/Framework/Monitoring/Watchdog.cs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'OpenSim/Framework')

diff --git a/OpenSim/Framework/Monitoring/Watchdog.cs b/OpenSim/Framework/Monitoring/Watchdog.cs
index 45762a6..427ed7b 100644
--- a/OpenSim/Framework/Monitoring/Watchdog.cs
+++ b/OpenSim/Framework/Monitoring/Watchdog.cs
@@ -82,12 +82,32 @@ namespace OpenSim.Framework.Monitoring
             /// </summary>
             public Func<string> AlarmMethod { get; set; }
 
+            /// <summary>
+            /// Stat structure associated with this thread.
+            /// </summary>
+            public Stat Stat { get; set; }
+
             public ThreadWatchdogInfo(Thread thread, int timeout)
             {
                 Thread = thread;
                 Timeout = timeout;
                 FirstTick = Environment.TickCount & Int32.MaxValue;
                 LastTick = FirstTick;
+
+                Stat 
+                    = new Stat(
+                        thread.Name,
+                        string.Format("Last update of thread {0}", thread.Name),
+                        "",
+                        "ms",
+                        "server",
+                        "thread",
+                        StatType.Pull,
+                        MeasuresOfInterest.None,
+                        stat => stat.Value = Environment.TickCount & Int32.MaxValue - LastTick,
+                        StatVerbosity.Debug);
+
+                StatsManager.RegisterStat(Stat);
             }
 
             public ThreadWatchdogInfo(ThreadWatchdogInfo previousTwi)
@@ -100,6 +120,11 @@ namespace OpenSim.Framework.Monitoring
                 AlarmIfTimeout = previousTwi.AlarmIfTimeout;
                 AlarmMethod = previousTwi.AlarmMethod;
             }
+
+            public void Cleanup()
+            {
+                StatsManager.DeregisterStat(Stat);
+            }
         }
 
         /// <summary>
@@ -238,6 +263,7 @@ namespace OpenSim.Framework.Monitoring
                     m_log.DebugFormat(
                         "[WATCHDOG]: Removing thread {0}, ID {1}", twi.Thread.Name, twi.Thread.ManagedThreadId);
 
+                    twi.Cleanup();
                     m_threads.Remove(threadID);
 
                     return true;
-- 
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