5 files changed, 628 insertions, 218 deletions

diff --git a/OpenSim/Framework/Monitoring/Stats/CounterStat.cs b/OpenSim/Framework/Monitoring/Stats/CounterStat.cs
index d81f182..caea30d 100755
--- a/OpenSim/Framework/Monitoring/Stats/CounterStat.cs
+++ b/OpenSim/Framework/Monitoring/Stats/CounterStat.cs
@@ -1,211 +1,228 @@
-/*

- * Copyright (c) Contributors, http://opensimulator.org/

- * See CONTRIBUTORS.TXT for a full list of copyright holders.

- *

- * Redistribution and use in source and binary forms, with or without

- * modification, are permitted provided that the following conditions are met:

- *     * Redistributions of source code must retain the above copyright

- *       notice, this list of conditions and the following disclaimer.

- *     * Redistributions in binary form must reproduce the above copyright

- *       notice, this list of conditions and the following disclaimer in the

- *       documentation and/or other materials provided with the distribution.

- *     * Neither the name of the OpenSimulator Project nor the

- *       names of its contributors may be used to endorse or promote products

- *       derived from this software without specific prior written permission.

- *

- * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY

- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

- * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY

- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

- */

-

-using System;

-using System.Collections.Generic;

-using System.Linq;

-using System.Text;

-

-using OpenMetaverse.StructuredData;

-

-namespace OpenSim.Framework.Monitoring

-{

-// Create a time histogram of events. The histogram is built in a wrap-around

-//   array of equally distributed buckets.

-// For instance, a minute long histogram of second sized buckets would be:

-//          new EventHistogram(60, 1000)

-public class EventHistogram

-{

-    private int m_timeBase;

-    private int m_numBuckets;

-    private int m_bucketMilliseconds;

-    private int m_lastBucket;

-    private int m_totalHistogramMilliseconds;

-    private long[] m_histogram;

-    private object histoLock = new object();

-

-    public EventHistogram(int numberOfBuckets, int millisecondsPerBucket)

-    {

-        m_numBuckets = numberOfBuckets;

-        m_bucketMilliseconds = millisecondsPerBucket;

-        m_totalHistogramMilliseconds = m_numBuckets * m_bucketMilliseconds;

-

-        m_histogram = new long[m_numBuckets];

-        Zero();

-        m_lastBucket = 0;

-        m_timeBase = Util.EnvironmentTickCount();

-    }

-

-    public void Event()

-    {

-        this.Event(1);

-    }

-

-    // Record an event at time 'now' in the histogram.

-    public void Event(int cnt)

-    {

-        lock (histoLock)

-        {

-            // The time as displaced from the base of the histogram

-            int bucketTime = Util.EnvironmentTickCountSubtract(m_timeBase);

-

-            // If more than the total time of the histogram, we just start over

-            if (bucketTime > m_totalHistogramMilliseconds)

-            {

-                Zero();

-                m_lastBucket = 0;

-                m_timeBase = Util.EnvironmentTickCount();

-            }

-            else

-            {

-                // To which bucket should we add this event?

-                int bucket = bucketTime / m_bucketMilliseconds;

-

-                // Advance m_lastBucket to the new bucket. Zero any buckets skipped over.

-                while (bucket != m_lastBucket)

-                {

-                    // Zero from just after the last bucket to the new bucket or the end

-                    for (int jj = m_lastBucket + 1; jj <= Math.Min(bucket, m_numBuckets - 1); jj++)

-                    {

-                        m_histogram[jj] = 0;

-                    }

-                    m_lastBucket = bucket;

-                    // If the new bucket is off the end, wrap around to the beginning

-                    if (bucket > m_numBuckets)

-                    {

-                        bucket -= m_numBuckets;

-                        m_lastBucket = 0;

-                        m_histogram[m_lastBucket] = 0;

-                        m_timeBase += m_totalHistogramMilliseconds;

-                    }

-                }

-            }

-            m_histogram[m_lastBucket] += cnt;

-        }

-    }

-

-    // Get a copy of the current histogram

-    public long[] GetHistogram()

-    {

-        long[] ret = new long[m_numBuckets];

-        lock (histoLock)

-        {

-            int indx = m_lastBucket + 1;

-            for (int ii = 0; ii < m_numBuckets; ii++, indx++)

-            {

-                if (indx >= m_numBuckets)

-                    indx = 0;

-                ret[ii] = m_histogram[indx];

-            }

-        }

-        return ret;

-    }

-

-    // Get a copy of the current histogram

-    public OSDArray GetHistogramAsOSDArray()

-    {

-        OSDArray ret = new OSDArray(m_numBuckets);

-        lock (histoLock)

-        {

-            int indx = m_lastBucket + 1;

-            for (int ii = 0; ii < m_numBuckets; ii++, indx++)

-            {

-                if (indx >= m_numBuckets)

-                    indx = 0;

-                ret[ii] = OSD.FromLong(m_histogram[indx]);

-            }

-        }

-        return ret;

-    }

-

-    // Zero out the histogram

-    public void Zero()

-    {

-        lock (histoLock)

-        {

-            for (int ii = 0; ii < m_numBuckets; ii++)

-                m_histogram[ii] = 0;

-        }

-    }

-}

-

-// A statistic that wraps a counter.

-// Built this way mostly so histograms and history can be created.

-public class CounterStat : Stat

-{

-    private SortedDictionary<string, EventHistogram> m_histograms;

-    private object counterLock = new object();

-

-    public CounterStat(

-                        string shortName,

-                        string name,

-                        string description,

-                        string unitName,

-                        string category,

-                        string container,

-                        StatVerbosity verbosity)

-        : base(shortName, name, description, unitName, category, container, StatType.Push, null, verbosity)

-    {

-        m_histograms = new SortedDictionary<string, EventHistogram>();

-    }

-

-    // Histograms are presumably added at intialization time and the list does not change thereafter.

-    // Thus no locking of the histogram list.

-    public void AddHistogram(string histoName, EventHistogram histo)

-    {

-        m_histograms.Add(histoName, histo);

-    }

-

-    public delegate void ProcessHistogram(string name, EventHistogram histo);

-    public void ForEachHistogram(ProcessHistogram process)

-    {

-        foreach (KeyValuePair<string, EventHistogram> kvp in m_histograms)

-        {

-            process(kvp.Key, kvp.Value);

-        }

-    }

-

-    public void Event()

-    {

-        this.Event(1);

-    }

-

-    // Count the underlying counter.

-    public void Event(int cnt)

-    {

-        lock (counterLock)

-        {

-            base.Value += cnt;

-

-            foreach (EventHistogram histo in m_histograms.Values)

-            {

-                histo.Event(cnt);

-            }

-        }

-    }

-}

-}

+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+using OpenMetaverse.StructuredData;
+
+namespace OpenSim.Framework.Monitoring
+{
+// Create a time histogram of events. The histogram is built in a wrap-around
+//   array of equally distributed buckets.
+// For instance, a minute long histogram of second sized buckets would be:
+//          new EventHistogram(60, 1000)
+public class EventHistogram
+{
+    private int m_timeBase;
+    private int m_numBuckets;
+    private int m_bucketMilliseconds;
+    private int m_lastBucket;
+    private int m_totalHistogramMilliseconds;
+    private long[] m_histogram;
+    private object histoLock = new object();
+
+    public EventHistogram(int numberOfBuckets, int millisecondsPerBucket)
+    {
+        m_numBuckets = numberOfBuckets;
+        m_bucketMilliseconds = millisecondsPerBucket;
+        m_totalHistogramMilliseconds = m_numBuckets * m_bucketMilliseconds;
+
+        m_histogram = new long[m_numBuckets];
+        Zero();
+        m_lastBucket = 0;
+        m_timeBase = Util.EnvironmentTickCount();
+    }
+
+    public void Event()
+    {
+        this.Event(1);
+    }
+
+    // Record an event at time 'now' in the histogram.
+    public void Event(int cnt)
+    {
+        lock (histoLock)
+        {
+            // The time as displaced from the base of the histogram
+            int bucketTime = Util.EnvironmentTickCountSubtract(m_timeBase);
+
+            // If more than the total time of the histogram, we just start over
+            if (bucketTime > m_totalHistogramMilliseconds)
+            {
+                Zero();
+                m_lastBucket = 0;
+                m_timeBase = Util.EnvironmentTickCount();
+            }
+            else
+            {
+                // To which bucket should we add this event?
+                int bucket = bucketTime / m_bucketMilliseconds;
+
+                // Advance m_lastBucket to the new bucket. Zero any buckets skipped over.
+                while (bucket != m_lastBucket)
+                {
+                    // Zero from just after the last bucket to the new bucket or the end
+                    for (int jj = m_lastBucket + 1; jj <= Math.Min(bucket, m_numBuckets - 1); jj++)
+                    {
+                        m_histogram[jj] = 0;
+                    }
+                    m_lastBucket = bucket;
+                    // If the new bucket is off the end, wrap around to the beginning
+                    if (bucket > m_numBuckets)
+                    {
+                        bucket -= m_numBuckets;
+                        m_lastBucket = 0;
+                        m_histogram[m_lastBucket] = 0;
+                        m_timeBase += m_totalHistogramMilliseconds;
+                    }
+                }
+            }
+            m_histogram[m_lastBucket] += cnt;
+        }
+    }
+
+    // Get a copy of the current histogram
+    public long[] GetHistogram()
+    {
+        long[] ret = new long[m_numBuckets];
+        lock (histoLock)
+        {
+            int indx = m_lastBucket + 1;
+            for (int ii = 0; ii < m_numBuckets; ii++, indx++)
+            {
+                if (indx >= m_numBuckets)
+                    indx = 0;
+                ret[ii] = m_histogram[indx];
+            }
+        }
+        return ret;
+    }
+
+    public OSDMap GetHistogramAsOSDMap()
+    {
+        OSDMap ret = new OSDMap();
+
+        ret.Add("Buckets", OSD.FromInteger(m_numBuckets));
+        ret.Add("BucketMilliseconds", OSD.FromInteger(m_bucketMilliseconds));
+        ret.Add("TotalMilliseconds", OSD.FromInteger(m_totalHistogramMilliseconds));
+
+        // Compute a number for the first bucket in the histogram.
+        // This will allow readers to know how this histogram relates to any previously read histogram.
+        int baseBucketNum = (m_timeBase / m_bucketMilliseconds) + m_lastBucket + 1;
+        ret.Add("BaseNumber", OSD.FromInteger(baseBucketNum));
+
+        ret.Add("Values", GetHistogramAsOSDArray());
+
+        return ret;
+    }
+    // Get a copy of the current histogram
+    public OSDArray GetHistogramAsOSDArray()
+    {
+        OSDArray ret = new OSDArray(m_numBuckets);
+        lock (histoLock)
+        {
+            int indx = m_lastBucket + 1;
+            for (int ii = 0; ii < m_numBuckets; ii++, indx++)
+            {
+                if (indx >= m_numBuckets)
+                    indx = 0;
+                ret[ii] = OSD.FromLong(m_histogram[indx]);
+            }
+        }
+        return ret;
+    }
+
+    // Zero out the histogram
+    public void Zero()
+    {
+        lock (histoLock)
+        {
+            for (int ii = 0; ii < m_numBuckets; ii++)
+                m_histogram[ii] = 0;
+        }
+    }
+}
+
+// A statistic that wraps a counter.
+// Built this way mostly so histograms and history can be created.
+public class CounterStat : Stat
+{
+    private SortedDictionary<string, EventHistogram> m_histograms;
+    private object counterLock = new object();
+
+    public CounterStat(
+                        string shortName,
+                        string name,
+                        string description,
+                        string unitName,
+                        string category,
+                        string container,
+                        StatVerbosity verbosity)
+        : base(shortName, name, description, unitName, category, container, StatType.Push, null, verbosity)
+    {
+        m_histograms = new SortedDictionary<string, EventHistogram>();
+    }
+
+    // Histograms are presumably added at intialization time and the list does not change thereafter.
+    // Thus no locking of the histogram list.
+    public void AddHistogram(string histoName, EventHistogram histo)
+    {
+        m_histograms.Add(histoName, histo);
+    }
+
+    public delegate void ProcessHistogram(string name, EventHistogram histo);
+    public void ForEachHistogram(ProcessHistogram process)
+    {
+        foreach (KeyValuePair<string, EventHistogram> kvp in m_histograms)
+        {
+            process(kvp.Key, kvp.Value);
+        }
+    }
+
+    public void Event()
+    {
+        this.Event(1);
+    }
+
+    // Count the underlying counter.
+    public void Event(int cnt)
+    {
+        lock (counterLock)
+        {
+            base.Value += cnt;
+
+            foreach (EventHistogram histo in m_histograms.Values)
+            {
+                histo.Event(cnt);
+            }
+        }
+    }
+}
+}
diff --git a/OpenSim/Framework/Monitoring/Stats/Stat.cs b/OpenSim/Framework/Monitoring/Stats/Stat.cs
index c8d9174..2e7665f 100644
--- a/OpenSim/Framework/Monitoring/Stats/Stat.cs
+++ b/OpenSim/Framework/Monitoring/Stats/Stat.cs
@@ -211,7 +211,7 @@ namespace OpenSim.Framework.Monitoring
         public virtual string ToConsoleString()
         {
             StringBuilder sb = new StringBuilder();
-            sb.AppendFormat("{0}.{1}.{2} : {3}{4}", Category, Container, ShortName, Value, UnitName);
+            sb.AppendFormat("{0}.{1}.{2} : {3} {4}", Category, Container, ShortName, Value, UnitName);
 
             AppendMeasuresOfInterest(sb);
 
diff --git a/OpenSim/Framework/Monitoring/StatsManager.cs b/OpenSim/Framework/Monitoring/StatsManager.cs
index 910907e..24db6d4 100644
--- a/OpenSim/Framework/Monitoring/StatsManager.cs
+++ b/OpenSim/Framework/Monitoring/StatsManager.cs
@@ -85,6 +85,7 @@ namespace OpenSim.Framework.Monitoring
             if (cmd.Length > 2)
             {
                 var categoryName = cmd[2];
+                var containerName = cmd.Length > 3 ? cmd[3] : String.Empty;
 
                 if (categoryName == AllSubCommand)
                 {
@@ -108,7 +109,20 @@ namespace OpenSim.Framework.Monitoring
                     }
                     else
                     {
-                        OutputCategoryStatsToConsole(con, category);
+                        if (String.IsNullOrEmpty(containerName))
+                            OutputCategoryStatsToConsole(con, category);
+                        else
+                        {
+                            SortedDictionary<string, Stat> container;
+                            if (category.TryGetValue(containerName, out container))
+                            {
+                                OutputContainerStatsToConsole(con, container);
+                            }
+                            else
+                            {
+                                con.OutputFormat("No such container {0} in category {1}", containerName, categoryName);
+                            }
+                        }
                     }
                 }
             }
@@ -124,10 +138,15 @@ namespace OpenSim.Framework.Monitoring
         {
             foreach (var container in category.Values)
             {
-                foreach (Stat stat in container.Values)
-                {
-                    con.Output(stat.ToConsoleString());
-                }
+                OutputContainerStatsToConsole(con, container);
+            }
+        }
+
+        private static void OutputContainerStatsToConsole( ICommandConsole con, SortedDictionary<string, Stat> container)
+        {
+            foreach (Stat stat in container.Values)
+            {
+                con.Output(stat.ToConsoleString());
             }
         }
 
diff --git a/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs b/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
index d84460a..4c9ee06 100644
--- a/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
@@ -33,6 +33,7 @@ using log4net;
 using Nini.Config;
 using OpenMetaverse;
 using OpenSim.Framework;
+using OpenSim.Framework.Monitoring;
 using OpenSim.Framework.Servers;
 using OpenSim.Region.CoreModules.Framework.Monitoring.Alerts;
 using OpenSim.Region.CoreModules.Framework.Monitoring.Monitors;
@@ -100,6 +101,7 @@ namespace OpenSim.Region.CoreModules.Framework.Monitoring
                 "/monitorstats/" + Uri.EscapeDataString(m_scene.RegionInfo.RegionName), StatsPage);
 
             AddMonitors();
+            RegisterStatsManagerRegionStatistics();
         }
 
         public void RemoveRegion(Scene scene)
@@ -109,6 +111,9 @@ namespace OpenSim.Region.CoreModules.Framework.Monitoring
 
             MainServer.Instance.RemoveHTTPHandler("GET", "/monitorstats/" + m_scene.RegionInfo.RegionID);
             MainServer.Instance.RemoveHTTPHandler("GET", "/monitorstats/" + Uri.EscapeDataString(m_scene.RegionInfo.RegionName));
+
+            UnRegisterStatsManagerRegionStatistics();
+
             m_scene = null;
         }
 
@@ -399,6 +404,47 @@ namespace OpenSim.Region.CoreModules.Framework.Monitoring
         {
             m_log.Error("[Monitor] " + reporter.Name + " for " + m_scene.RegionInfo.RegionName + " reports " + reason + " (Fatal: " + fatal + ")");
         }
+
+        private List<Stat> registeredStats = new List<Stat>();
+        private void MakeStat(string pName, string pUnitName, Action<Stat> act)
+        {
+            Stat tempStat = new Stat(pName, pName, pName, pUnitName, "scene", m_scene.RegionInfo.RegionName, StatType.Pull, act, StatVerbosity.Info);
+            StatsManager.RegisterStat(tempStat);
+            registeredStats.Add(tempStat);
+        }
+        private void RegisterStatsManagerRegionStatistics()
+        {
+            string regionName = m_scene.RegionInfo.RegionName;
+
+            MakeStat("RootAgents", "avatars", (s) => { s.Value = m_scene.SceneGraph.GetRootAgentCount(); });
+            MakeStat("ChildAgents", "avatars", (s) => { s.Value = m_scene.SceneGraph.GetChildAgentCount(); });
+            MakeStat("TotalPrims", "objects", (s) => { s.Value = m_scene.SceneGraph.GetTotalObjectsCount(); });
+            MakeStat("ActivePrims", "objects", (s) => { s.Value = m_scene.SceneGraph.GetActiveObjectsCount(); });
+            MakeStat("ActiveScripts", "scripts", (s) => { s.Value = m_scene.SceneGraph.GetActiveScriptsCount(); });
+
+            MakeStat("TimeDilation", "sec/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[0]; });
+            MakeStat("SimFPS", "fps", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[1]; });
+            MakeStat("PhysicsFPS", "fps", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[2]; });
+            MakeStat("AgentUpdates", "updates/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[3]; });
+            MakeStat("FrameTime", "ms/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[8]; });
+            MakeStat("NetTime", "ms/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[9]; });
+            MakeStat("OtherTime", "ms/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[12]; });
+            MakeStat("PhysicsTime", "ms/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[10]; });
+            MakeStat("AgentTime", "ms/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[16]; });
+            MakeStat("ImageTime", "ms/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[11]; });
+            MakeStat("ScriptLines", "lines/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[20]; });
+            MakeStat("SimSpareMS", "ms/sec", (s) => { s.Value = m_scene.StatsReporter.LastReportedSimStats[21]; });
+        }
+        
+        private void UnRegisterStatsManagerRegionStatistics()
+        {
+            foreach (Stat stat in registeredStats)
+            {
+                StatsManager.DeregisterStat(stat);
+                stat.Dispose();
+            }
+            registeredStats.Clear();
+        }
         
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/OptionalModules/Framework/Monitoring/ServerStats.cs b/OpenSim/Region/OptionalModules/Framework/Monitoring/ServerStats.cs
new file mode 100644
index 0000000..a3d2436
--- /dev/null
+++ b/OpenSim/Region/OptionalModules/Framework/Monitoring/ServerStats.cs
@@ -0,0 +1,328 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Net.NetworkInformation;
+using System.Text;
+using System.Threading;
+
+using log4net;
+using Mono.Addins;
+using Nini.Config;
+
+using OpenSim.Framework;
+using OpenSim.Framework.Console;
+using OpenSim.Framework.Monitoring;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+
+using OpenMetaverse.StructuredData;
+
+namespace OpenSim.Region.OptionalModules.Framework.Monitoring
+{
+[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "ServerStatistics")]
+public class ServerStats : ISharedRegionModule
+{
+    private readonly ILog m_log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
+    private readonly string LogHeader = "[SERVER STATS]";
+
+    public bool Enabled = false;
+    private static Dictionary<string, Stat> RegisteredStats = new Dictionary<string, Stat>();
+
+    public readonly string CategoryServer = "server";
+
+    public readonly string ContainerProcessor = "processor";
+    public readonly string ContainerMemory = "memory";
+    public readonly string ContainerNetwork = "network";
+    public readonly string ContainerProcess = "process";
+
+    public string NetworkInterfaceTypes = "Ethernet";
+
+    readonly int performanceCounterSampleInterval = 500;
+    int lastperformanceCounterSampleTime = 0;
+
+    private class PerfCounterControl
+    {
+        public PerformanceCounter perfCounter;
+        public int lastFetch;
+        public string name;
+        public PerfCounterControl(PerformanceCounter pPc)
+            : this(pPc, String.Empty)
+        {
+        }
+        public PerfCounterControl(PerformanceCounter pPc, string pName)
+        {
+            perfCounter = pPc;
+            lastFetch = 0;
+            name = pName;
+        }
+    }
+
+    PerfCounterControl processorPercentPerfCounter = null;
+
+    #region ISharedRegionModule
+    // IRegionModuleBase.Name
+    public string Name { get { return "Server Stats"; } }
+    // IRegionModuleBase.ReplaceableInterface
+    public Type ReplaceableInterface { get { return null; } }
+    // IRegionModuleBase.Initialize
+    public void Initialise(IConfigSource source)
+    {
+        IConfig cfg = source.Configs["Monitoring"];
+
+        if (cfg != null)
+            Enabled = cfg.GetBoolean("ServerStatsEnabled", true);
+
+        if (Enabled)
+        {
+            NetworkInterfaceTypes = cfg.GetString("NetworkInterfaceTypes", "Ethernet");
+        }
+    }
+    // IRegionModuleBase.Close
+    public void Close()
+    {
+        if (RegisteredStats.Count > 0)
+        {
+            foreach (Stat stat in RegisteredStats.Values)
+            {
+                StatsManager.DeregisterStat(stat);
+                stat.Dispose();
+            }
+            RegisteredStats.Clear();
+        }
+    }
+    // IRegionModuleBase.AddRegion
+    public void AddRegion(Scene scene)
+    {
+    }
+    // IRegionModuleBase.RemoveRegion
+    public void RemoveRegion(Scene scene)
+    {
+    }
+    // IRegionModuleBase.RegionLoaded
+    public void RegionLoaded(Scene scene)
+    {
+    }
+    // ISharedRegionModule.PostInitialize
+    public void PostInitialise()
+    {
+        if (RegisteredStats.Count == 0)
+        {
+            RegisterServerStats();
+        }
+    }
+    #endregion ISharedRegionModule
+
+    private void MakeStat(string pName, string pUnit, string pContainer, Action<Stat> act)
+    {
+        Stat stat = new Stat(pName, pName, "", pUnit, CategoryServer, pContainer, StatType.Pull, act, StatVerbosity.Info);
+        StatsManager.RegisterStat(stat);
+        RegisteredStats.Add(pName, stat);
+    }
+
+    public void RegisterServerStats()
+    {
+        lastperformanceCounterSampleTime = Util.EnvironmentTickCount();
+        PerformanceCounter tempPC;
+        Stat tempStat;
+        string tempName;
+
+        try
+        {
+            tempName = "CPUPercent";
+            tempPC = new PerformanceCounter("Processor", "% Processor Time", "_Total");
+            processorPercentPerfCounter = new PerfCounterControl(tempPC);
+            // A long time bug in mono is that CPU percent is reported as CPU percent idle. Windows reports CPU percent busy.
+            tempStat = new Stat(tempName, tempName, "", "percent", CategoryServer, ContainerProcessor,
+                            StatType.Pull, (s) => { GetNextValue(s, processorPercentPerfCounter, Util.IsWindows() ? 1 : -1); },
+                            StatVerbosity.Info);
+            StatsManager.RegisterStat(tempStat);
+            RegisteredStats.Add(tempName, tempStat);
+
+            MakeStat("TotalProcessorTime", "sec", ContainerProcessor, 
+                                (s) => { s.Value = Process.GetCurrentProcess().TotalProcessorTime.TotalSeconds; });
+
+            MakeStat("UserProcessorTime", "sec", ContainerProcessor,
+                                (s) => { s.Value = Process.GetCurrentProcess().UserProcessorTime.TotalSeconds; });
+
+            MakeStat("PrivilegedProcessorTime", "sec", ContainerProcessor,
+                                (s) => { s.Value = Process.GetCurrentProcess().PrivilegedProcessorTime.TotalSeconds; });
+
+            MakeStat("Threads", "threads", ContainerProcessor,
+                                (s) => { s.Value = Process.GetCurrentProcess().Threads.Count; });
+        }
+        catch (Exception e)
+        {
+            m_log.ErrorFormat("{0} Exception creating 'Process': {1}", LogHeader, e);
+        }
+
+        try
+        {
+            List<string> okInterfaceTypes = new List<string>(NetworkInterfaceTypes.Split(','));
+
+            IEnumerable<NetworkInterface> nics = NetworkInterface.GetAllNetworkInterfaces();
+            foreach (NetworkInterface nic in nics)
+            {
+                if (nic.OperationalStatus != OperationalStatus.Up)
+                    continue;
+
+                string nicInterfaceType = nic.NetworkInterfaceType.ToString();
+                if (!okInterfaceTypes.Contains(nicInterfaceType))
+                {
+                    m_log.DebugFormat("{0} Not including stats for network interface '{1}' of type '{2}'. To include, add to [Monitoring]NetworkInterfaceTypes='Ethernet,Loopback'",
+                                            LogHeader, nic.Name, nicInterfaceType);
+                    continue;
+                }
+
+                if (nic.Supports(NetworkInterfaceComponent.IPv4))
+                {
+                    IPv4InterfaceStatistics nicStats = nic.GetIPv4Statistics();
+                    if (nicStats != null)
+                    {
+                        MakeStat("BytesRcvd/" + nic.Name, "KB", ContainerNetwork,
+                                        (s) => { LookupNic(s, (ns) => { return ns.BytesReceived; }, 1024.0); });
+                        MakeStat("BytesSent/" + nic.Name, "KB", ContainerNetwork,
+                                        (s) => { LookupNic(s, (ns) => { return ns.BytesSent; }, 1024.0); });
+                        MakeStat("TotalBytes/" + nic.Name, "KB", ContainerNetwork,
+                                        (s) => { LookupNic(s, (ns) => { return ns.BytesSent + ns.BytesReceived; }, 1024.0); });
+                    }
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            m_log.ErrorFormat("{0} Exception creating 'Network Interface': {1}", LogHeader, e);
+        }
+
+        MakeStat("ProcessMemory", "MB", ContainerMemory,
+                            (s) => { s.Value = Process.GetCurrentProcess().WorkingSet64 / 1024d / 1024d; });
+        MakeStat("ObjectMemory", "MB", ContainerMemory,
+                            (s) => { s.Value = GC.GetTotalMemory(false) / 1024d / 1024d; });
+        MakeStat("LastMemoryChurn", "MB/sec", ContainerMemory,
+                            (s) => { s.Value = Math.Round(MemoryWatchdog.LastMemoryChurn * 1000d / 1024d / 1024d, 3); });
+        MakeStat("AverageMemoryChurn", "MB/sec", ContainerMemory,
+                            (s) => { s.Value = Math.Round(MemoryWatchdog.AverageMemoryChurn * 1000d / 1024d / 1024d, 3); });
+    }
+
+    // Notes on performance counters: 
+    //  "How To Read Performance Counters": http://blogs.msdn.com/b/bclteam/archive/2006/06/02/618156.aspx
+    //  "How to get the CPU Usage in C#": http://stackoverflow.com/questions/278071/how-to-get-the-cpu-usage-in-c
+    //  "Mono Performance Counters": http://www.mono-project.com/Mono_Performance_Counters
+    private delegate double PerfCounterNextValue();
+    private void GetNextValue(Stat stat, PerfCounterControl perfControl)
+    {
+        GetNextValue(stat, perfControl, 1.0);
+    }
+    private void GetNextValue(Stat stat, PerfCounterControl perfControl, double factor)
+    {
+        if (Util.EnvironmentTickCountSubtract(perfControl.lastFetch) > performanceCounterSampleInterval)
+        {
+            if (perfControl != null && perfControl.perfCounter != null)
+            {
+                try
+                {
+                    // Kludge for factor to run double duty. If -1, subtract the value from one
+                    if (factor == -1)
+                        stat.Value = 1 - perfControl.perfCounter.NextValue();
+                    else
+                        stat.Value = perfControl.perfCounter.NextValue() / factor;
+                }
+                catch (Exception e)
+                {
+                    m_log.ErrorFormat("{0} Exception on NextValue fetching {1}: {2}", LogHeader, stat.Name, e);
+                }
+                perfControl.lastFetch = Util.EnvironmentTickCount();
+            }
+        }
+    }
+
+    private delegate double GetIPv4StatValue(IPv4InterfaceStatistics interfaceStat);
+    private void LookupNic(Stat stat, GetIPv4StatValue getter, double factor)
+    {
+        // Get the one nic that has the name of this stat
+        IEnumerable<NetworkInterface> nics = NetworkInterface.GetAllNetworkInterfaces().Where(
+                              (network) => network.Name == stat.Description);
+        try
+        {
+            foreach (NetworkInterface nic in nics)
+            {
+                IPv4InterfaceStatistics intrStats = nic.GetIPv4Statistics();
+                if (intrStats != null)
+                    stat.Value = Math.Round(getter(intrStats) / factor, 3);
+                break;
+            }
+        }
+        catch
+        {
+            // There are times interfaces go away so we just won't update the stat for this
+            m_log.ErrorFormat("{0} Exception fetching stat on interface '{1}'", LogHeader, stat.Description);
+        }
+    }
+}
+
+public class ServerStatsAggregator : Stat
+{
+    public ServerStatsAggregator(
+        string shortName,
+        string name,
+        string description,
+        string unitName,
+        string category,
+        string container
+        )
+        : base(
+            shortName,
+            name,
+            description,
+            unitName,
+            category,
+            container,
+            StatType.Push,
+            MeasuresOfInterest.None,
+            null,
+            StatVerbosity.Info)
+    {
+    }
+    public override string ToConsoleString()
+    {
+        StringBuilder sb = new StringBuilder();
+
+        return sb.ToString();
+    }
+
+    public override OSDMap ToOSDMap()
+    {
+        OSDMap ret = new OSDMap();
+
+        return ret;
+    }
+}
+
+}