15 files changed, 172 insertions, 19 deletions

diff --git a/OpenSim/Framework/IScene.cs b/OpenSim/Framework/IScene.cs
index 2c38e0f..87ec99e 100644
--- a/OpenSim/Framework/IScene.cs
+++ b/OpenSim/Framework/IScene.cs
@@ -71,6 +71,14 @@ namespace OpenSim.Framework
         /// </summary>
         bool LoginsEnabled { get; set; }
 
+        /// <summary>
+        /// Is this region ready for use?
+        /// </summary>
+        /// <remarks>
+        /// This does not mean that logins are enabled, merely that they can be.
+        /// </remarks>
+        bool Ready { get; set; }
+
         float TimeDilation { get; }
 
         bool AllowScriptCrossings { get; }
diff --git a/OpenSim/Framework/Statistics/AssetStatsCollector.cs b/OpenSim/Framework/Monitoring/AssetStatsCollector.cs
index 7082ef3..2a4d45b 100644
--- a/OpenSim/Framework/Statistics/AssetStatsCollector.cs
+++ b/OpenSim/Framework/Monitoring/AssetStatsCollector.cs
@@ -28,7 +28,7 @@
 using System;
 using System.Timers;
 
-namespace OpenSim.Framework.Statistics
+namespace OpenSim.Framework.Monitoring
 {
     /// <summary>
     /// Asset service statistics collection
diff --git a/OpenSim/Framework/Statistics/BaseStatsCollector.cs b/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
index 3f918f3..9ee0876 100644
--- a/OpenSim/Framework/Statistics/BaseStatsCollector.cs
+++ b/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
@@ -31,8 +31,7 @@ using System.Text;
 using OpenMetaverse;
 using OpenMetaverse.StructuredData;
 
-
-namespace OpenSim.Framework.Statistics
+namespace OpenSim.Framework.Monitoring
 {
     /// <summary>
     /// Statistics which all collectors are interested in reporting
diff --git a/OpenSim/Framework/Statistics/Interfaces/IPullStatsProvider.cs b/OpenSim/Framework/Monitoring/Interfaces/IPullStatsProvider.cs
index 430e580..86a6620 100644
--- a/OpenSim/Framework/Statistics/Interfaces/IPullStatsProvider.cs
+++ b/OpenSim/Framework/Monitoring/Interfaces/IPullStatsProvider.cs
@@ -25,7 +25,7 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-namespace OpenSim.Framework.Statistics.Interfaces
+namespace OpenSim.Framework.Monitoring.Interfaces
 {
     /// <summary>
     /// Implemented by objects which allow statistical information to be pulled from them.
diff --git a/OpenSim/Framework/Statistics/Interfaces/IStatsCollector.cs b/OpenSim/Framework/Monitoring/Interfaces/IStatsCollector.cs
index 477bbb3..99f75e3 100644
--- a/OpenSim/Framework/Statistics/Interfaces/IStatsCollector.cs
+++ b/OpenSim/Framework/Monitoring/Interfaces/IStatsCollector.cs
@@ -25,7 +25,7 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-namespace OpenSim.Framework.Statistics
+namespace OpenSim.Framework.Monitoring
 {
     /// <summary>
     /// Implemented by classes which collect up non-viewer statistical information
diff --git a/OpenSim/Framework/Monitoring/MemoryWatchdog.cs b/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
new file mode 100644
index 0000000..a23cf1f
--- /dev/null
+++ b/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
@@ -0,0 +1,129 @@
+/*
+ * 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.Reflection;
+using System.Threading;
+using log4net;
+
+namespace OpenSim.Framework.Monitoring
+{
+    /// <summary>
+    /// Experimental watchdog for memory usage.
+    /// </summary>
+    public static class MemoryWatchdog
+    {
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        /// <summary>
+        /// Is this watchdog active?
+        /// </summary>
+        public static bool Enabled
+        {
+            get { return m_enabled; }
+            set
+            {
+//                m_log.DebugFormat("[MEMORY WATCHDOG]: Setting MemoryWatchdog.Enabled to {0}", value);
+
+                if (value && !m_enabled)
+                    UpdateLastRecord(GC.GetTotalMemory(false), Util.EnvironmentTickCount());
+
+                m_enabled = value;
+            }
+        }
+        private static bool m_enabled;
+
+        /// <summary>
+        /// Average memory churn in bytes per millisecond.
+        /// </summary>
+        public static double AverageMemoryChurn
+        {
+            get { if (m_samples.Count > 0) return m_samples.Average(); else return 0; }
+        }
+
+        /// <summary>
+        /// Maximum number of statistical samples.
+        /// </summary>
+        /// <remarks>
+        /// At the moment this corresponds to 1 minute since the sampling rate is every 2.5 seconds as triggered from
+        /// the main Watchdog.
+        /// </remarks>
+        private static int m_maxSamples = 24;
+
+        /// <summary>
+        /// Time when the watchdog was last updated.
+        /// </summary>
+        private static int m_lastUpdateTick;
+
+        /// <summary>
+        /// Memory used at time of last watchdog update.
+        /// </summary>
+        private static long m_lastUpdateMemory;
+
+        /// <summary>
+        /// Memory churn rate per millisecond.
+        /// </summary>
+//        private static double m_churnRatePerMillisecond;
+
+        /// <summary>
+        /// Historical samples for calculating moving average.
+        /// </summary>
+        private static Queue<double> m_samples = new Queue<double>(m_maxSamples);
+
+        public static void Update()
+        {
+            int now = Util.EnvironmentTickCount();
+            long memoryNow = GC.GetTotalMemory(false);
+            long memoryDiff = memoryNow - m_lastUpdateMemory;
+
+            if (memoryDiff >= 0)
+            {
+                if (m_samples.Count >= m_maxSamples)
+                    m_samples.Dequeue();
+
+                double elapsed = Util.EnvironmentTickCountSubtract(now, m_lastUpdateTick);
+
+                // This should never happen since it's not useful for updates to occur with no time elapsed, but
+                // protect ourselves from a divide-by-zero just in case.
+                if (elapsed == 0)
+                    return;
+
+                m_samples.Enqueue(memoryDiff / (double)elapsed);
+            }
+
+            UpdateLastRecord(memoryNow, now);
+        }
+
+        private static void UpdateLastRecord(long memoryNow, int timeNow)
+        {
+            m_lastUpdateMemory = memoryNow;
+            m_lastUpdateTick = timeNow;
+        }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Framework/Statistics/SimExtraStatsCollector.cs b/OpenSim/Framework/Monitoring/SimExtraStatsCollector.cs
index a506e3b..cdd7cc7 100644
--- a/OpenSim/Framework/Statistics/SimExtraStatsCollector.cs
+++ b/OpenSim/Framework/Monitoring/SimExtraStatsCollector.cs
@@ -28,12 +28,11 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
-
 using OpenMetaverse;
-using OpenSim.Framework.Statistics.Interfaces;
 using OpenMetaverse.StructuredData;
+using OpenSim.Framework.Monitoring.Interfaces;
 
-namespace OpenSim.Framework.Statistics
+namespace OpenSim.Framework.Monitoring
 {
     /// <summary>
     /// Collects sim statistics which aren't already being collected for the linden viewer's statistics pane
diff --git a/OpenSim/Framework/Statistics/StatsManager.cs b/OpenSim/Framework/Monitoring/StatsManager.cs
index 436ce2f..d78fa6a 100644
--- a/OpenSim/Framework/Statistics/StatsManager.cs
+++ b/OpenSim/Framework/Monitoring/StatsManager.cs
@@ -25,7 +25,7 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-namespace OpenSim.Framework.Statistics
+namespace OpenSim.Framework.Monitoring
 {
     /// <summary>
     /// Singleton used to provide access to statistics reporters
diff --git a/OpenSim/Framework/Statistics/UserStatsCollector.cs b/OpenSim/Framework/Monitoring/UserStatsCollector.cs
index fd2a9bf..e89c8e6 100644
--- a/OpenSim/Framework/Statistics/UserStatsCollector.cs
+++ b/OpenSim/Framework/Monitoring/UserStatsCollector.cs
@@ -27,7 +27,7 @@
 
 using System.Timers;
 
-namespace OpenSim.Framework.Statistics
+namespace OpenSim.Framework.Monitoring
 {
     /// <summary>
     /// Collects user service statistics
diff --git a/OpenSim/Framework/Watchdog.cs b/OpenSim/Framework/Monitoring/Watchdog.cs
index 449d014..e4db964 100644
--- a/OpenSim/Framework/Watchdog.cs
+++ b/OpenSim/Framework/Monitoring/Watchdog.cs
@@ -31,7 +31,7 @@ using System.Linq;
 using System.Threading;
 using log4net;
 
-namespace OpenSim.Framework
+namespace OpenSim.Framework.Monitoring
 {
     /// <summary>
     /// Manages launching threads and keeping watch over them for timeouts
@@ -325,6 +325,9 @@ namespace OpenSim.Framework
                         callback(callbackInfo);
             }
 
+            if (MemoryWatchdog.Enabled)
+                MemoryWatchdog.Update();
+
             m_watchdogTimer.Start();
         }
     }
diff --git a/OpenSim/Framework/RegionInfo.cs b/OpenSim/Framework/RegionInfo.cs
index 1b2f681..4bde7be 100644
--- a/OpenSim/Framework/RegionInfo.cs
+++ b/OpenSim/Framework/RegionInfo.cs
@@ -482,9 +482,16 @@ namespace OpenSim.Framework
                 MainConsole.Instance.Output("=====================================\n");
 
                 if (name == String.Empty)
-                    name = MainConsole.Instance.CmdPrompt("New region name", name);
-                if (name == String.Empty)
-                    throw new Exception("Cannot interactively create region with no name");
+                {
+                    while (name.Trim() == string.Empty)
+                    {
+                        name = MainConsole.Instance.CmdPrompt("New region name", name);
+                        if (name.Trim() == string.Empty)
+                        {
+                            MainConsole.Instance.Output("Cannot interactively create region with no name");
+                        }
+                    }
+                }
 
                 source.AddConfig(name);
 
@@ -515,15 +522,20 @@ namespace OpenSim.Framework
             //
             allKeys.Remove("RegionUUID");
             string regionUUID = config.GetString("RegionUUID", string.Empty);
-            if (regionUUID == String.Empty)
+            if (!UUID.TryParse(regionUUID.Trim(), out RegionID))
             {
                 UUID newID = UUID.Random();
-
-                regionUUID = MainConsole.Instance.CmdPrompt("RegionUUID", newID.ToString());
+                while (RegionID == UUID.Zero)
+                {
+                    regionUUID = MainConsole.Instance.CmdPrompt("RegionUUID", newID.ToString());
+                    if (!UUID.TryParse(regionUUID.Trim(), out RegionID))
+                    {
+                        MainConsole.Instance.Output("RegionUUID must be a valid UUID");
+                    }
+                }
                 config.Set("RegionUUID", regionUUID);
             }
 
-            RegionID = new UUID(regionUUID);
             originRegionID = RegionID; // What IS this?! (Needed for RegionCombinerModule?)
 
             // Location
diff --git a/OpenSim/Framework/Servers/BaseOpenSimServer.cs b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
index 9a2cd0e..cf19002 100644
--- a/OpenSim/Framework/Servers/BaseOpenSimServer.cs
+++ b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
@@ -40,9 +40,9 @@ using log4net.Core;
 using log4net.Repository;
 using OpenSim.Framework;
 using OpenSim.Framework.Console;
+using OpenSim.Framework.Monitoring;
 using OpenSim.Framework.Servers;
 using OpenSim.Framework.Servers.HttpServer;
-using OpenSim.Framework.Statistics;
 using Timer=System.Timers.Timer;
 
 using OpenMetaverse;
diff --git a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
index 24f986a..e45cb89 100644
--- a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
+++ b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
@@ -45,6 +45,7 @@ using OpenMetaverse.StructuredData;
 using CoolHTTPListener = HttpServer.HttpListener;
 using HttpListener=System.Net.HttpListener;
 using LogPrio=HttpServer.LogPrio;
+using OpenSim.Framework.Monitoring;
 
 namespace OpenSim.Framework.Servers.HttpServer
 {
diff --git a/OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs b/OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs
index a3bd330..a385110 100644
--- a/OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs
+++ b/OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs
@@ -32,6 +32,7 @@ using System.Reflection;
 using log4net;
 using HttpServer;
 using OpenSim.Framework;
+using OpenSim.Framework.Monitoring;
 
 
 /*
diff --git a/OpenSim/Framework/Servers/HttpServer/PollServiceWorkerThread.cs b/OpenSim/Framework/Servers/HttpServer/PollServiceWorkerThread.cs
index 1e3fbf0..1c529b6 100644
--- a/OpenSim/Framework/Servers/HttpServer/PollServiceWorkerThread.cs
+++ b/OpenSim/Framework/Servers/HttpServer/PollServiceWorkerThread.cs
@@ -36,6 +36,7 @@ using HttpServer;
 using OpenMetaverse;
 using System.Reflection;
 using log4net;
+using OpenSim.Framework.Monitoring;
 
 namespace OpenSim.Framework.Servers.HttpServer
 {