362 lines
12 KiB
C#
362 lines
12 KiB
C#
/*
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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.Threading;
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using System.Reflection;
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using log4net;
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using HttpServer;
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using OpenSim.Framework;
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/*
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namespace OpenSim.Framework.Servers.HttpServer
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{
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public class PollServiceRequestManager
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{
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// private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private readonly BaseHttpServer m_server;
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private static Queue m_requests = Queue.Synchronized(new Queue());
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private static ManualResetEvent m_ev = new ManualResetEvent(false);
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private uint m_WorkerThreadCount = 0;
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private Thread[] m_workerThreads;
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private PollServiceWorkerThread[] m_PollServiceWorkerThreads;
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private bool m_running = true;
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public PollServiceRequestManager(BaseHttpServer pSrv, uint pWorkerThreadCount, int pTimeout)
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{
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m_server = pSrv;
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m_WorkerThreadCount = pWorkerThreadCount;
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m_workerThreads = new Thread[m_WorkerThreadCount];
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m_PollServiceWorkerThreads = new PollServiceWorkerThread[m_WorkerThreadCount];
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//startup worker threads
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for (uint i = 0; i < m_WorkerThreadCount; i++)
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{
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m_PollServiceWorkerThreads[i] = new PollServiceWorkerThread(m_server, pTimeout);
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m_PollServiceWorkerThreads[i].ReQueue += ReQueueEvent;
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m_workerThreads[i]
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= Watchdog.StartThread(
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m_PollServiceWorkerThreads[i].ThreadStart,
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String.Format("PollServiceWorkerThread{0}", i),
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ThreadPriority.Normal,
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false,
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true,
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int.MaxValue);
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}
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Watchdog.StartThread(
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this.ThreadStart,
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"PollServiceWatcherThread",
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ThreadPriority.Normal,
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false,
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true,
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1000 * 60 * 10);
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}
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internal void ReQueueEvent(PollServiceHttpRequest req)
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{
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// Do accounting stuff here
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Enqueue(req);
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}
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public void Enqueue(PollServiceHttpRequest req)
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{
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lock (m_requests)
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m_requests.Enqueue(req);
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m_ev.Set();
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}
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public void ThreadStart()
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{
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while (m_running)
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{
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m_ev.WaitOne(1000);
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m_ev.Reset();
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Watchdog.UpdateThread();
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ProcessQueuedRequests();
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}
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}
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private void ProcessQueuedRequests()
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{
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lock (m_requests)
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{
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if (m_requests.Count == 0)
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return;
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// m_log.DebugFormat("[POLL SERVICE REQUEST MANAGER]: Processing {0} requests", m_requests.Count);
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int reqperthread = (int) (m_requests.Count/m_WorkerThreadCount) + 1;
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// For Each WorkerThread
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for (int tc = 0; tc < m_WorkerThreadCount && m_requests.Count > 0; tc++)
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{
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//Loop over number of requests each thread handles.
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for (int i = 0; i < reqperthread && m_requests.Count > 0; i++)
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{
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try
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{
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m_PollServiceWorkerThreads[tc].Enqueue((PollServiceHttpRequest)m_requests.Dequeue());
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}
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catch (InvalidOperationException)
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{
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// The queue is empty, we did our calculations wrong!
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return;
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}
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}
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}
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}
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}
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~PollServiceRequestManager()
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{
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foreach (object o in m_requests)
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{
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PollServiceHttpRequest req = (PollServiceHttpRequest) o;
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m_server.DoHTTPGruntWork(
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req.PollServiceArgs.NoEvents(req.RequestID, req.PollServiceArgs.Id),
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new OSHttpResponse(new HttpResponse(req.HttpContext, req.Request), req.HttpContext));
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}
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m_requests.Clear();
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foreach (Thread t in m_workerThreads)
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{
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t.Abort();
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}
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m_running = false;
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}
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}
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}
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*/
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using System.IO;
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using System.Text;
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using System.Collections.Generic;
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namespace OpenSim.Framework.Servers.HttpServer
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{
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public class PollServiceRequestManager
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private readonly BaseHttpServer m_server;
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private BlockingQueue<PollServiceHttpRequest> m_requests = new BlockingQueue<PollServiceHttpRequest>();
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private static Queue<PollServiceHttpRequest> m_retry_requests = new Queue<PollServiceHttpRequest>();
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private uint m_WorkerThreadCount = 0;
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private Thread[] m_workerThreads;
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private Thread m_retrysThread;
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private bool m_running = true;
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private int m_timeout = 250;
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public PollServiceRequestManager(BaseHttpServer pSrv, uint pWorkerThreadCount, int pTimeout)
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{
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m_server = pSrv;
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m_WorkerThreadCount = pWorkerThreadCount;
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m_workerThreads = new Thread[m_WorkerThreadCount];
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//startup worker threads
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for (uint i = 0; i < m_WorkerThreadCount; i++)
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{
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m_workerThreads[i]
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= Watchdog.StartThread(
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poolWorkerJob,
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String.Format("PollServiceWorkerThread{0}", i),
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ThreadPriority.Normal,
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false,
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true,
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int.MaxValue);
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}
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m_retrysThread = Watchdog.StartThread(
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this.CheckRetries,
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"PollServiceWatcherThread",
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ThreadPriority.Normal,
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false,
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true,
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1000 * 60 * 10);
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}
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private void ReQueueEvent(PollServiceHttpRequest req)
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{
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if (m_running)
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{
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lock (m_retry_requests)
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m_retry_requests.Enqueue(req);
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}
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}
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public void Enqueue(PollServiceHttpRequest req)
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{
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if (m_running)
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m_requests.Enqueue(req);
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}
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private void CheckRetries()
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{
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while (m_running)
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{
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Thread.Sleep(100); // let the world move
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Watchdog.UpdateThread();
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lock (m_retry_requests)
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{
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while (m_retry_requests.Count > 0 && m_running)
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Enqueue(m_retry_requests.Dequeue());
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}
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}
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}
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~PollServiceRequestManager()
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{
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m_running = false;
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m_timeout = -10000; // cause all to expire
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Thread.Sleep(1000); // let the world move
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foreach (Thread t in m_workerThreads)
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{
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try
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{
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t.Abort();
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}
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catch
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{
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}
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}
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try
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{
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foreach (PollServiceHttpRequest req in m_retry_requests)
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{
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m_server.DoHTTPGruntWork(
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req.PollServiceArgs.NoEvents(req.RequestID, req.PollServiceArgs.Id),
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new OSHttpResponse(new HttpResponse(req.HttpContext, req.Request), req.HttpContext));
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}
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}
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catch
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{
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}
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PollServiceHttpRequest wreq;
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m_retry_requests.Clear();
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while (m_requests.Count() > 0)
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{
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try
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{
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wreq = m_requests.Dequeue(0);
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m_server.DoHTTPGruntWork(
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wreq.PollServiceArgs.NoEvents(wreq.RequestID, wreq.PollServiceArgs.Id),
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new OSHttpResponse(new HttpResponse(wreq.HttpContext, wreq.Request), wreq.HttpContext));
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}
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catch
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{
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}
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}
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m_requests.Clear();
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}
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// work threads
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private void poolWorkerJob()
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{
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PollServiceHttpRequest req;
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StreamReader str;
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while (true)
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{
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req = m_requests.Dequeue(5000);
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Watchdog.UpdateThread();
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if (req != null)
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{
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try
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{
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if (req.PollServiceArgs.HasEvents(req.RequestID, req.PollServiceArgs.Id))
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{
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try
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{
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str = new StreamReader(req.Request.Body);
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}
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catch (System.ArgumentException)
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{
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// Stream was not readable means a child agent
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// was closed due to logout, leaving the
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// Event Queue request orphaned.
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continue;
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}
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try
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{
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Hashtable responsedata = req.PollServiceArgs.GetEvents(req.RequestID, req.PollServiceArgs.Id, str.ReadToEnd());
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m_server.DoHTTPGruntWork(responsedata,
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new OSHttpResponse(new HttpResponse(req.HttpContext, req.Request), req.HttpContext));
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}
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catch (ObjectDisposedException) // Browser aborted before we could read body, server closed the stream
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{
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// Ignore it, no need to reply
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}
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str.Close();
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}
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else
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{
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if ((Environment.TickCount - req.RequestTime) > m_timeout)
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{
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m_server.DoHTTPGruntWork(req.PollServiceArgs.NoEvents(req.RequestID, req.PollServiceArgs.Id),
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new OSHttpResponse(new HttpResponse(req.HttpContext, req.Request), req.HttpContext));
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}
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else
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{
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ReQueueEvent(req);
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}
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}
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}
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catch (Exception e)
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{
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m_log.ErrorFormat("Exception in poll service thread: " + e.ToString());
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}
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}
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}
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}
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}
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}
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