mirror of
https://github.com/opensim/opensim.git
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bd1b992aaf
shutdown. Fixes Mantis #8494. Threads are aborted when shutting down and ThreadAbortException is odd in that it is rethrown at the end of the catch unless the abort is reset. No functional changes but fewer error messages on shutdown.
500 lines
19 KiB
C#
Executable File
500 lines
19 KiB
C#
Executable File
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Collections.Concurrent;
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using System.Reflection;
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using System.Threading;
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using Mono.Addins;
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using OpenSim.Framework.Monitoring;
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using log4net;
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using Nini.Config;
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using OpenMetaverse;
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using OpenSim.Capabilities.Handlers;
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using OpenSim.Framework;
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using OpenSim.Framework.Servers;
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using OpenSim.Framework.Servers.HttpServer;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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using OpenSim.Services.Interfaces;
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using Caps = OpenSim.Framework.Capabilities.Caps;
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namespace OpenSim.Region.ClientStack.Linden
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{
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[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "GetAssetsModule")]
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public class GetAssetsModule : INonSharedRegionModule
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{
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// private static readonly ILog m_log =
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// LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private Scene m_scene;
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private bool m_Enabled;
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private string m_GetTextureURL;
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private string m_GetMeshURL;
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private string m_GetMesh2URL;
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// private string m_GetAssetURL;
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class APollRequest
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{
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public PollServiceAssetEventArgs thepoll;
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public UUID reqID;
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public Hashtable request;
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}
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public class APollResponse
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{
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public Hashtable response;
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public int bytes;
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public bool throttle;
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}
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private static IAssetService m_assetService = null;
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private static GetAssetsHandler m_getAssetHandler;
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private static Thread[] m_workerThreads = null;
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private static int m_NumberScenes = 0;
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private static BlockingCollection<APollRequest> m_queue = new BlockingCollection<APollRequest>();
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private static object m_loadLock = new object();
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private Dictionary<UUID, string> m_capsDictTexture = new Dictionary<UUID, string>();
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private Dictionary<UUID, string> m_capsDictGetMesh = new Dictionary<UUID, string>();
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private Dictionary<UUID, string> m_capsDictGetMesh2 = new Dictionary<UUID, string>();
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//private Dictionary<UUID, string> m_capsDictGetAsset = new Dictionary<UUID, string>();
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#region Region Module interfaceBase Members
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public Type ReplaceableInterface
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{
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get { return null; }
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}
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public void Initialise(IConfigSource source)
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{
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IConfig config = source.Configs["ClientStack.LindenCaps"];
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if (config == null)
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return;
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m_GetTextureURL = config.GetString("Cap_GetTexture", string.Empty);
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if (m_GetTextureURL != string.Empty)
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m_Enabled = true;
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m_GetMeshURL = config.GetString("Cap_GetMesh", string.Empty);
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if (m_GetMeshURL != string.Empty)
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m_Enabled = true;
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m_GetMesh2URL = config.GetString("Cap_GetMesh2", string.Empty);
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if (m_GetMesh2URL != string.Empty)
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m_Enabled = true;
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/*
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m_GetAssetURL = config.GetString("Cap_GetAsset", string.Empty);
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if (m_GetAssetURL != string.Empty)
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m_Enabled = true;
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*/
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}
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public void AddRegion(Scene pScene)
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{
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if (!m_Enabled)
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return;
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m_scene = pScene;
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}
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public void RemoveRegion(Scene s)
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{
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if (!m_Enabled)
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return;
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s.EventManager.OnRegisterCaps -= RegisterCaps;
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s.EventManager.OnDeregisterCaps -= DeregisterCaps;
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m_NumberScenes--;
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m_scene = null;
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}
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public void RegionLoaded(Scene s)
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{
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if (!m_Enabled)
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return;
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lock(m_loadLock)
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{
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if (m_assetService == null && m_NumberScenes == 0)
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{
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m_assetService = s.RequestModuleInterface<IAssetService>();
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// We'll reuse the same handler for all requests.
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m_getAssetHandler = new GetAssetsHandler(m_assetService);
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}
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if (m_assetService == null)
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{
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m_Enabled = false;
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return;
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}
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s.EventManager.OnRegisterCaps += RegisterCaps;
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s.EventManager.OnDeregisterCaps += DeregisterCaps;
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m_NumberScenes++;
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if (m_workerThreads == null)
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{
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m_workerThreads = new Thread[3];
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for (uint i = 0; i < 3; i++)
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{
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m_workerThreads[i] = WorkManager.StartThread(DoAssetRequests,
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String.Format("GetCapsAssetWorker{0}", i),
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ThreadPriority.Normal,
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true,
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false,
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null,
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int.MaxValue);
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}
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}
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}
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}
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public void Close()
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{
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if(m_NumberScenes <= 0 && m_workerThreads != null)
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{
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m_log.DebugFormat("[GetAssetsModule] Closing");
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foreach (Thread t in m_workerThreads)
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Watchdog.AbortThread(t.ManagedThreadId);
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// This will fail on region shutdown. Its harmless.
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// Prevent red ink.
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try
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{
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m_queue.Dispose();
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}
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catch {}
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}
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}
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public string Name { get { return "GetAssetsModule"; } }
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#endregion
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private static void DoAssetRequests()
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{
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try
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{
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while (m_NumberScenes > 0)
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{
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APollRequest poolreq;
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if (m_queue.TryTake(out poolreq, 4500))
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{
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if (m_NumberScenes <= 0)
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break;
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Watchdog.UpdateThread();
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if (poolreq.reqID != UUID.Zero)
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poolreq.thepoll.Process(poolreq);
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poolreq = null;
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}
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Watchdog.UpdateThread();
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}
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}
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catch (ThreadAbortException)
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{
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Thread.ResetAbort();
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}
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}
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private class PollServiceAssetEventArgs : PollServiceEventArgs
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{
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private List<Hashtable> requests = new List<Hashtable>();
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private Dictionary<UUID, APollResponse> responses =new Dictionary<UUID, APollResponse>();
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private HashSet<UUID> dropedResponses = new HashSet<UUID>();
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private Scene m_scene;
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private ScenePresence m_presence;
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public PollServiceAssetEventArgs(string uri, UUID pId, Scene scene) :
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base(null, uri, null, null, null, null, pId, int.MaxValue)
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{
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m_scene = scene;
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// x is request id, y is userid
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HasEvents = (x, y) =>
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{
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lock (responses)
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{
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APollResponse response;
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if (responses.TryGetValue(x, out response))
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{
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if (m_presence == null)
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m_presence = m_scene.GetScenePresence(pId);
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if (m_presence == null || m_presence.IsDeleted)
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return true;
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if(response.throttle)
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return m_presence.CapCanSendAsset(1, response.bytes);
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return m_presence.CapCanSendAsset(2, response.bytes);
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}
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return false;
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}
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};
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Drop = (x, y) =>
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{
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lock (responses)
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{
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responses.Remove(x);
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lock(dropedResponses)
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dropedResponses.Add(x);
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}
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};
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GetEvents = (x, y) =>
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{
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lock (responses)
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{
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try
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{
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return responses[x].response;
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}
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finally
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{
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responses.Remove(x);
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}
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}
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};
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// x is request id, y is request data hashtable
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Request = (x, y) =>
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{
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APollRequest reqinfo = new APollRequest();
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reqinfo.thepoll = this;
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reqinfo.reqID = x;
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reqinfo.request = y;
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m_queue.Add(reqinfo);
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};
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// this should never happen except possible on shutdown
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NoEvents = (x, y) =>
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{
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/*
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lock (requests)
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{
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Hashtable request = requests.Find(id => id["RequestID"].ToString() == x.ToString());
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requests.Remove(request);
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}
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*/
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Hashtable response = new Hashtable();
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response["int_response_code"] = 500;
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response["str_response_string"] = "timeout";
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response["content_type"] = "text/plain";
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response["keepalive"] = false;
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return response;
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};
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}
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public void Process(APollRequest requestinfo)
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{
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Hashtable curresponse;
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UUID requestID = requestinfo.reqID;
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if(m_scene.ShuttingDown)
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return;
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lock(responses)
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{
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lock(dropedResponses)
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{
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if(dropedResponses.Contains(requestID))
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{
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dropedResponses.Remove(requestID);
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return;
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}
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}
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/* can't do this with current viewers; HG problem
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// If the avatar is gone, don't bother to get the texture
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if(m_scene.GetScenePresence(Id) == null)
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{
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curresponse = new Hashtable();
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curresponse["int_response_code"] = 500;
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curresponse["str_response_string"] = "timeout";
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curresponse["content_type"] = "text/plain";
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curresponse["keepalive"] = false;
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responses[requestID] = new APollResponse() { bytes = 0, response = curresponse };
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return;
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}
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*/
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}
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curresponse = m_getAssetHandler.Handle(requestinfo.request);
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lock(responses)
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{
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lock(dropedResponses)
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{
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if(dropedResponses.Contains(requestID))
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{
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dropedResponses.Remove(requestID);
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return;
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}
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}
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APollResponse preq= new APollResponse()
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{
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bytes = (int)curresponse["int_bytes"],
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response = curresponse
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};
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if(curresponse.Contains("throttle"))
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preq.throttle = true;
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responses[requestID] = preq;
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}
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}
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}
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public void RegisterCaps(UUID agentID, Caps caps)
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{
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string hostName = m_scene.RegionInfo.ExternalHostName;
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uint port = (MainServer.Instance == null) ? 0 : MainServer.Instance.Port;
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string protocol = "http";
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if (MainServer.Instance.UseSSL)
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{
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hostName = MainServer.Instance.SSLCommonName;
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port = MainServer.Instance.SSLPort;
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protocol = "https";
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}
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string baseURL = String.Format("{0}://{1}:{2}", protocol, hostName, port);
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if (m_GetTextureURL == "localhost")
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{
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string capUrl = "/CAPS/" + UUID.Random() + "/";
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// Register this as a poll service
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PollServiceAssetEventArgs args = new PollServiceAssetEventArgs(capUrl, agentID, m_scene);
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args.Type = PollServiceEventArgs.EventType.Texture;
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MainServer.Instance.AddPollServiceHTTPHandler(capUrl, args);
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IExternalCapsModule handler = m_scene.RequestModuleInterface<IExternalCapsModule>();
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if (handler != null)
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handler.RegisterExternalUserCapsHandler(agentID, caps, "GetTexture", capUrl);
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else
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caps.RegisterHandler("GetTexture", baseURL + capUrl);
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m_capsDictTexture[agentID] = capUrl;
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}
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else
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{
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caps.RegisterHandler("GetTexture", m_GetTextureURL);
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}
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//GetMesh
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if (m_GetMeshURL == "localhost")
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{
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string capUrl = "/CAPS/" + UUID.Random() + "/";
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PollServiceAssetEventArgs args = new PollServiceAssetEventArgs(capUrl, agentID, m_scene);
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args.Type = PollServiceEventArgs.EventType.Mesh;
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MainServer.Instance.AddPollServiceHTTPHandler(capUrl, args);
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IExternalCapsModule handler = m_scene.RequestModuleInterface<IExternalCapsModule>();
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if (handler != null)
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handler.RegisterExternalUserCapsHandler(agentID, caps, "GetMesh", capUrl);
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else
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caps.RegisterHandler("GetMesh", baseURL + capUrl);
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m_capsDictGetMesh[agentID] = capUrl;
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}
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else if (m_GetMeshURL != string.Empty)
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caps.RegisterHandler("GetMesh", m_GetMeshURL);
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//GetMesh2
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if (m_GetMesh2URL == "localhost")
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{
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string capUrl = "/CAPS/" + UUID.Random() + "/";
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PollServiceAssetEventArgs args = new PollServiceAssetEventArgs(capUrl, agentID, m_scene);
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args.Type = PollServiceEventArgs.EventType.Mesh2;
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MainServer.Instance.AddPollServiceHTTPHandler(capUrl, args);
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IExternalCapsModule handler = m_scene.RequestModuleInterface<IExternalCapsModule>();
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if (handler != null)
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handler.RegisterExternalUserCapsHandler(agentID, caps, "GetMesh2", capUrl);
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else
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caps.RegisterHandler("GetMesh2", baseURL + capUrl);
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m_capsDictGetMesh2[agentID] = capUrl;
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}
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else if (m_GetMesh2URL != string.Empty)
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caps.RegisterHandler("GetMesh2", m_GetMesh2URL);
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/* we can't support this cap. Current viewers connect to the wrong regions.
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//ViewerAsset
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if (m_GetAssetURL == "localhost")
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{
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string capUrl = "/CAPS/" + UUID.Random() + "/";
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PollServiceAssetEventArgs args = new PollServiceAssetEventArgs(capUrl, agentID, m_scene);
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args.Type = PollServiceEventArgs.EventType.Asset;
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MainServer.Instance.AddPollServiceHTTPHandler(capUrl, args);
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IExternalCapsModule handler = m_scene.RequestModuleInterface<IExternalCapsModule>();
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if (handler != null)
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handler.RegisterExternalUserCapsHandler(agentID, caps, "ViewerAsset", capUrl);
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else
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caps.RegisterHandler("ViewerAsset", baseURL + capUrl);
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m_capsDictGetAsset[agentID] = capUrl;
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}
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else if (m_GetAssetURL != string.Empty)
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caps.RegisterHandler("ViewerAsset", m_GetMesh2URL);
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*/
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}
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private void DeregisterCaps(UUID agentID, Caps caps)
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{
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string capUrl;
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if (m_capsDictTexture.TryGetValue(agentID, out capUrl))
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{
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MainServer.Instance.RemovePollServiceHTTPHandler("", capUrl);
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m_capsDictTexture.Remove(agentID);
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}
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if (m_capsDictGetMesh.TryGetValue(agentID, out capUrl))
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{
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MainServer.Instance.RemovePollServiceHTTPHandler("", capUrl);
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m_capsDictGetMesh.Remove(agentID);
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}
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if (m_capsDictGetMesh2.TryGetValue(agentID, out capUrl))
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{
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MainServer.Instance.RemovePollServiceHTTPHandler("", capUrl);
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m_capsDictGetMesh2.Remove(agentID);
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}
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/*
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if (m_capsDictGetAsset.TryGetValue(agentID, out capUrl))
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{
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MainServer.Instance.RemovePollServiceHTTPHandler("", capUrl);
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m_capsDictGetAsset.Remove(agentID);
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}
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*/
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}
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}
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}
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