Merge branch 'master' into careminster

4 files changed, 274 insertions, 223 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/Framework/Util.cs b/OpenSim/Framework/Util.cs
index aadcdc8..96644ec 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -929,7 +929,25 @@ namespace OpenSim.Framework
         /// <returns></returns>
         public static T GetConfigVarFromSections<T>(IConfigSource config, string varname, string[] sections)
         {
-            object val = default(T);
+            return GetConfigVarFromSections<T>(config, varname, sections, default(T));
+        }
+
+        /// <summary>
+        /// Gets the value of a configuration variable by looking into
+        /// multiple sections in order. The latter sections overwrite 
+        /// any values previously found.
+        /// </summary>
+        /// <remarks>
+        /// If no value is found then the given default value is returned
+        /// </remarks>
+        /// <typeparam name="T">Type of the variable</typeparam>
+        /// <param name="config">The configuration object</param>
+        /// <param name="varname">The configuration variable</param>
+        /// <param name="sections">Ordered sequence of sections to look at</param>
+        /// <param name="val">Default value</param>
+        /// <returns></returns>
+        public static T GetConfigVarFromSections<T>(IConfigSource config, string varname, string[] sections, object val)
+        {
             foreach (string section in sections)
             {
                 IConfig cnf = config.Configs[section];
@@ -937,11 +955,7 @@ namespace OpenSim.Framework
                     continue;
 
                 if (typeof(T) == typeof(String))
-                {
-                    if (val == null) // no null strings, please
-                        val = string.Empty;
                     val = cnf.GetString(varname, (string)val);
-                }
                 else if (typeof(T) == typeof(Boolean))
                     val = cnf.GetBoolean(varname, (bool)val);
                 else if (typeof(T) == typeof(Int32))
@@ -949,8 +963,9 @@ namespace OpenSim.Framework
                 else if (typeof(T) == typeof(float))
                     val = cnf.GetFloat(varname, (int)val);
                 else
-                    m_log.WarnFormat("[UTIL]: Unhandled type {0}", typeof(T));
+                    m_log.ErrorFormat("[UTIL]: Unhandled type {0}", typeof(T));
             }
+
             return (T)val;
         }