Merge branch 'master' into careminster

Conflicts:
	OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs

5 files changed, 214 insertions, 116 deletions

diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index 1f6af4a..81167ec 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -5415,9 +5415,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             AddLocalPacketHandler(PacketType.RemoveTaskInventory, HandleRemoveTaskInventory);
             AddLocalPacketHandler(PacketType.MoveTaskInventory, HandleMoveTaskInventory);
             AddLocalPacketHandler(PacketType.RezScript, HandleRezScript);
-            AddLocalPacketHandler(PacketType.MapLayerRequest, HandleMapLayerRequest, false);
-            AddLocalPacketHandler(PacketType.MapBlockRequest, HandleMapBlockRequest, false);
-            AddLocalPacketHandler(PacketType.MapNameRequest, HandleMapNameRequest, false);
+            AddLocalPacketHandler(PacketType.MapLayerRequest, HandleMapLayerRequest);
+            AddLocalPacketHandler(PacketType.MapBlockRequest, HandleMapBlockRequest);
+            AddLocalPacketHandler(PacketType.MapNameRequest, HandleMapNameRequest);
             AddLocalPacketHandler(PacketType.TeleportLandmarkRequest, HandleTeleportLandmarkRequest);
             AddLocalPacketHandler(PacketType.TeleportCancel, HandleTeleportCancel);
             AddLocalPacketHandler(PacketType.TeleportLocationRequest, HandleTeleportLocationRequest);
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
index b8951d9..1ed6a74 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
@@ -70,6 +70,18 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         public void AddScene(IScene scene)
         {
             m_udpServer.AddScene(scene);
+
+            StatsManager.RegisterStat(
+                new Stat(
+                    "IncomingPacketsProcessedCount",
+                    "Number of inbound UDP packets processed",
+                    "Number of inbound UDP packets processed",
+                    "",
+                    "clientstack",
+                    scene.Name,
+                    StatType.Pull,
+                    stat => stat.Value = m_udpServer.IncomingPacketsProcessed,
+                    StatVerbosity.Debug));
         }
 
         public bool HandlesRegion(Location x)
@@ -173,6 +185,14 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private ExpiringCache<IPEndPoint, Queue<UDPPacketBuffer>> m_pendingCache = new ExpiringCache<IPEndPoint, Queue<UDPPacketBuffer>>();
         private Pool<IncomingPacket> m_incomingPacketPool;
 
+        /// <summary>
+        /// Stat for number of packets in the main pool awaiting use.
+        /// </summary>
+        private Stat m_poolCountStat;
+
+        /// <summary>
+        /// Stat for number of packets in the inbound packet pool awaiting use.
+        /// </summary>
         private Stat m_incomingPacketPoolStat;
 
         private int m_defaultRTO = 0;
@@ -345,20 +365,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                 m_incomingPacketPool = new Pool<IncomingPacket>(() => new IncomingPacket(), 500);
 
-                m_incomingPacketPoolStat
-                    = new Stat(
-                        "IncomingPacketPoolCount",
-                        "Objects within incoming packet pool",
-                        "The number of objects currently stored within the incoming packet pool",
-                        "",
-                        "clientstack",
-                        "packetpool",
-                        StatType.Pull,
-                        stat => stat.Value = m_incomingPacketPool.Count,
-                        StatVerbosity.Debug);
-
-                StatsManager.RegisterStat(m_incomingPacketPoolStat);
-
                 return true;
             }
 
@@ -382,6 +388,53 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         }
 
         /// <summary>
+        /// This is a seperate method so that it can be called once we have an m_scene to distinguish different scene
+        /// stats.
+        /// </summary>
+        private void EnablePoolStats()
+        {
+            m_poolCountStat
+                = new Stat(
+                    "UDPPacketBufferPoolCount",
+                    "Objects within the UDPPacketBuffer pool",
+                    "The number of objects currently stored within the UDPPacketBuffer pool",
+                    "",
+                    "clientstack",
+                    m_scene.Name,
+                    StatType.Pull,
+                    stat => stat.Value = Pool.Count,
+                    StatVerbosity.Debug);
+
+            StatsManager.RegisterStat(m_poolCountStat);
+
+            m_incomingPacketPoolStat
+                = new Stat(
+                    "IncomingPacketPoolCount",
+                    "Objects within incoming packet pool",
+                    "The number of objects currently stored within the incoming packet pool",
+                    "",
+                    "clientstack",
+                    m_scene.Name,
+                    StatType.Pull,
+                    stat => stat.Value = m_incomingPacketPool.Count,
+                    StatVerbosity.Debug);
+
+            StatsManager.RegisterStat(m_incomingPacketPoolStat);
+        }
+
+        /// <summary>
+        /// Disables pool stats.
+        /// </summary>
+        private void DisablePoolStats()
+        {
+            StatsManager.DeregisterStat(m_poolCountStat);
+            m_poolCountStat = null;
+
+            StatsManager.DeregisterStat(m_incomingPacketPoolStat);
+            m_incomingPacketPoolStat = null;
+        }
+
+        /// <summary>
         /// If the outgoing UDP thread times out, then return client that was being processed to help with debugging.
         /// </summary>
         /// <returns></returns>
@@ -420,6 +473,65 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             m_scene = (Scene)scene;
             m_location = new Location(m_scene.RegionInfo.RegionHandle);
 
+            // XXX: These stats are also pool stats but we register them separately since they are currently not
+            // turned on and off by EnablePools()/DisablePools()
+            StatsManager.RegisterStat(
+                new PercentageStat(
+                    "PacketsReused",
+                    "Packets reused",
+                    "Number of packets reused out of all requests to the packet pool",
+                    "clientstack",
+                    m_scene.Name,
+                    StatType.Pull,
+                    stat => 
+                        { PercentageStat pstat = (PercentageStat)stat; 
+                          pstat.Consequent = PacketPool.Instance.PacketsRequested; 
+                          pstat.Antecedent = PacketPool.Instance.PacketsReused; },
+                    StatVerbosity.Debug));
+
+            StatsManager.RegisterStat(
+                new PercentageStat(
+                    "PacketDataBlocksReused",
+                    "Packet data blocks reused",
+                    "Number of data blocks reused out of all requests to the packet pool",
+                    "clientstack",
+                    m_scene.Name,
+                    StatType.Pull,
+                    stat =>
+                        { PercentageStat pstat = (PercentageStat)stat; 
+                          pstat.Consequent = PacketPool.Instance.BlocksRequested; 
+                          pstat.Antecedent = PacketPool.Instance.BlocksReused; },
+                    StatVerbosity.Debug));
+
+            StatsManager.RegisterStat(
+                new Stat(
+                    "PacketsPoolCount",
+                    "Objects within the packet pool",
+                    "The number of objects currently stored within the packet pool",
+                    "",
+                    "clientstack",
+                    m_scene.Name,
+                    StatType.Pull,
+                    stat => stat.Value = PacketPool.Instance.PacketsPooled,
+                    StatVerbosity.Debug));
+
+            StatsManager.RegisterStat(
+                new Stat(
+                    "PacketDataBlocksPoolCount",
+                    "Objects within the packet data block pool",
+                    "The number of objects currently stored within the packet data block pool",
+                    "",
+                    "clientstack",
+                    m_scene.Name,
+                    StatType.Pull,
+                    stat => stat.Value = PacketPool.Instance.BlocksPooled,
+                    StatVerbosity.Debug));
+        
+            // We delay enabling pool stats to AddScene() instead of Initialize() so that we can distinguish pool stats by
+            // scene name
+            if (UsePools)
+                EnablePoolStats();
+
             MainConsole.Instance.Commands.AddCommand(
                 "Debug",
                 false,
@@ -508,12 +620,18 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             if (enabled == "on")
             {
                 if (EnablePools())
+                {
+                    EnablePoolStats();
                     MainConsole.Instance.OutputFormat("Packet pools enabled on {0}", m_scene.Name);
+                }
             }
             else if (enabled == "off")
             {
                 if (DisablePools())
+                {
+                    DisablePoolStats();
                     MainConsole.Instance.OutputFormat("Packet pools disabled on {0}", m_scene.Name);
+                }
             }
             else
             {
@@ -1621,6 +1739,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private int npacksSent = 0;
         private int npackNotSent = 0;
 
+        /// <summary>
+        /// Number of inbound packets processed since startup.
+        /// </summary>
+        public long IncomingPacketsProcessed { get; private set; }
+
         private void MonitoredClientOutgoingPacketHandler(IClientAPI client)
         {
             nticks++;
@@ -1680,7 +1803,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                             npacksSent++;
                         }
                         else
+                        {
                             npackNotSent++;
+                        }
 
                         watch2.Stop();
                         avgDequeueTicks = (nticks - 1) / (float)nticks * avgDequeueTicks + (watch2.ElapsedTicks / (float)nticks);
@@ -1688,7 +1813,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                     }
                     else
+                    {
                         m_log.WarnFormat("[LLUDPSERVER]: Client is not connected");
+                    }
                 }
             }
             catch (Exception ex)
@@ -1752,6 +1879,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 //                    "[LLUDPSERVER]: Dropped incoming {0} for dead client {1} in {2}",
 //                    packet.Type, client.Name, m_scene.RegionInfo.RegionName);
 //            }
+
+            IncomingPacketsProcessed++;
         }
 
         protected void LogoutHandler(IClientAPI client)
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
index 8bd3461..2aeb4cc 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
@@ -61,14 +61,14 @@ namespace OpenMetaverse
         private bool m_asyncPacketHandling;
 
         /// <summary>
-        /// Pool to use for handling data.  May be null if UsePools = false;
+        /// Are we to use object pool(s) to reduce memory churn when receiving data?
         /// </summary>
-        protected OpenSim.Framework.Pool<UDPPacketBuffer> m_pool;
+        public bool UsePools { get; protected set; }
 
         /// <summary>
-        /// Are we to use object pool(s) to reduce memory churn when receiving data?
+        /// Pool to use for handling data.  May be null if UsePools = false;
         /// </summary>
-        public bool UsePools { get; protected set; }
+        protected OpenSim.Framework.Pool<UDPPacketBuffer> Pool { get; private set; }
 
         /// <summary>Returns true if the server is currently listening for inbound packets, otherwise false</summary>
         public bool IsRunningInbound { get; private set; }
@@ -77,8 +77,6 @@ namespace OpenMetaverse
         /// <remarks>If IsRunningOut = false, then any request to send a packet is simply dropped.</remarks>
         public bool IsRunningOutbound { get; private set; }
 
-        private Stat m_poolCountStat;
-
         /// <summary>
         /// Default constructor
         /// </summary>
@@ -178,21 +176,7 @@ namespace OpenMetaverse
         {
             if (!UsePools)
             {
-                m_pool = new Pool<UDPPacketBuffer>(() => new UDPPacketBuffer(), 500);
-
-                m_poolCountStat
-                    = new Stat(
-                        "UDPPacketBufferPoolCount",
-                        "Objects within the UDPPacketBuffer pool",
-                        "The number of objects currently stored within the UDPPacketBuffer pool",
-                        "",
-                        "clientstack",
-                        "packetpool",
-                        StatType.Pull,
-                        stat => stat.Value = m_pool.Count,
-                        StatVerbosity.Debug);
-
-                StatsManager.RegisterStat(m_poolCountStat);
+                Pool = new Pool<UDPPacketBuffer>(() => new UDPPacketBuffer(), 500);
 
                 UsePools = true;
 
@@ -207,7 +191,6 @@ namespace OpenMetaverse
             if (UsePools)
             {
                 UsePools = false;
-                StatsManager.DeregisterStat(m_poolCountStat);
 
                 // We won't null out the pool to avoid a race condition with code that may be in the middle of using it.
 
@@ -222,7 +205,7 @@ namespace OpenMetaverse
             UDPPacketBuffer buf;
 
             if (UsePools)
-                buf = m_pool.GetObject();
+                buf = Pool.GetObject();
             else
                 buf = new UDPPacketBuffer();
 
@@ -305,7 +288,7 @@ namespace OpenMetaverse
                 finally
                 {
                     if (UsePools)
-                        m_pool.ReturnObject(buffer);
+                        Pool.ReturnObject(buffer);
 
                     // Synchronous mode waits until the packet callback completes
                     // before starting the receive to fetch another packet
@@ -347,4 +330,4 @@ namespace OpenMetaverse
             catch (ObjectDisposedException) { }
         }
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs b/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
index 9f22fb4..1fdc410 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
@@ -41,29 +41,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         private static readonly PacketPool instance = new PacketPool();
 
-        private bool packetPoolEnabled = true;
-        private bool dataBlockPoolEnabled = true;
-
-        private PercentageStat m_packetsReusedStat = new PercentageStat(
-            "PacketsReused",
-            "Packets reused",
-            "Number of packets reused out of all requests to the packet pool",
-            "clientstack",
-            "packetpool",
-            StatType.Push,
-            null,
-            StatVerbosity.Debug);
-
-        private PercentageStat m_blocksReusedStat = new PercentageStat(
-            "PacketDataBlocksReused",
-            "Packet data blocks reused",
-            "Number of data blocks reused out of all requests to the packet pool",
-            "clientstack",
-            "packetpool",
-            StatType.Push,
-            null,
-            StatVerbosity.Debug);
-
         /// <summary>
         /// Pool of packets available for reuse.
         /// </summary>
@@ -76,46 +53,59 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             get { return instance; }
         }
 
-        public bool RecyclePackets
+        public bool RecyclePackets { get; set; }
+
+        public bool RecycleDataBlocks { get; set; }
+
+        /// <summary>
+        /// The number of packets pooled
+        /// </summary>
+        public int PacketsPooled
         {
-            set { packetPoolEnabled = value; }
-            get { return packetPoolEnabled; }
+            get 
+            {
+                lock (pool)
+                    return pool.Count;
+            }
         }
 
-        public bool RecycleDataBlocks
+        /// <summary>
+        /// The number of blocks pooled.
+        /// </summary>
+        public int BlocksPooled
         {
-            set { dataBlockPoolEnabled = value; }
-            get { return dataBlockPoolEnabled; }
+            get 
+            {
+                lock (DataBlocks) 
+                    return DataBlocks.Count;
+            }
         }
 
+        /// <summary>
+        /// Number of packets requested.
+        /// </summary>
+        public long PacketsRequested { get; private set; }
+
+        /// <summary>
+        /// Number of packets reused.
+        /// </summary>
+        public long PacketsReused { get; private set; }
+
+        /// <summary>
+        /// Number of packet blocks requested.
+        /// </summary>
+        public long BlocksRequested { get; private set; }
+
+        /// <summary>
+        /// Number of packet blocks reused.
+        /// </summary>
+        public long BlocksReused { get; private set; }
+
         private PacketPool()
         {
-            StatsManager.RegisterStat(m_packetsReusedStat);
-            StatsManager.RegisterStat(m_blocksReusedStat);
-
-            StatsManager.RegisterStat(
-                new Stat(
-                    "PacketsPoolCount",
-                    "Objects within the packet pool",
-                    "The number of objects currently stored within the packet pool",
-                    "",
-                    "clientstack",
-                    "packetpool",
-                    StatType.Pull,
-                    stat => { lock (pool) { stat.Value = pool.Count; } },
-                    StatVerbosity.Debug));
-
-            StatsManager.RegisterStat(
-                new Stat(
-                    "PacketDataBlocksPoolCount",
-                    "Objects within the packet data block pool",
-                    "The number of objects currently stored within the packet data block pool",
-                    "",
-                    "clientstack",
-                    "packetpool",
-                    StatType.Pull,
-                    stat => { lock (DataBlocks) { stat.Value = DataBlocks.Count; } },
-                    StatVerbosity.Debug));
+            // defaults
+            RecyclePackets = true;
+            RecycleDataBlocks = true;
         }
 
         /// <summary>
@@ -125,11 +115,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         /// <returns>Guaranteed to always return a packet, whether from the pool or newly constructed.</returns>
         public Packet GetPacket(PacketType type)
         {
-            m_packetsReusedStat.Consequent++;
+            PacketsRequested++;
 
             Packet packet;
 
-            if (!packetPoolEnabled)
+            if (!RecyclePackets)
                 return Packet.BuildPacket(type);
 
             lock (pool)
@@ -146,7 +136,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 //                    m_log.DebugFormat("[PACKETPOOL]: Pulling {0} packet", type);
 
                     // Recycle old packages
-                    m_packetsReusedStat.Antecedent++;
+                    PacketsReused++;
 
                     packet = pool[type].Pop();
                 }
@@ -215,7 +205,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         /// <param name="packet"></param>
         public void ReturnPacket(Packet packet)
         {
-            if (dataBlockPoolEnabled)
+            if (RecycleDataBlocks)
             {
                 switch (packet.Type)
                 {
@@ -239,7 +229,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 }
             }
 
-            if (packetPoolEnabled)
+            if (RecyclePackets)
             {
                 switch (packet.Type)
                 {
@@ -277,7 +267,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             lock (DataBlocks)
             {
-                m_blocksReusedStat.Consequent++;
+                BlocksRequested++;
 
                 Stack<Object> s;
 
@@ -285,7 +275,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 {
                     if (s.Count > 0)
                     {
-                        m_blocksReusedStat.Antecedent++;
+                        BlocksReused++;
                         return (T)s.Pop();
                     }
                 }
diff --git a/OpenSim/Region/CoreModules/World/WorldMap/MapSearchModule.cs b/OpenSim/Region/CoreModules/World/WorldMap/MapSearchModule.cs
index 0c22279..4c96a50 100644
--- a/OpenSim/Region/CoreModules/World/WorldMap/MapSearchModule.cs
+++ b/OpenSim/Region/CoreModules/World/WorldMap/MapSearchModule.cs
@@ -115,19 +115,15 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
                 m_Clients.Add(remoteClient.AgentId);
             }
 
-            Util.FireAndForget(delegate
+            try
             {
-                try
-                {
-                    OnMapNameRequest(remoteClient, mapName, flags);
-                }
-                finally
-                {
-                    lock (m_Clients)
-                        m_Clients.Remove(remoteClient.AgentId);
-                }
-            });
-
+                OnMapNameRequest(remoteClient, mapName, flags);
+            }
+            finally
+            {
+                lock (m_Clients)
+                    m_Clients.Remove(remoteClient.AgentId);
+            }
         }
 
         private void OnMapNameRequest(IClientAPI remoteClient, string mapName, uint flags)