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/*
* 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;
using System.Collections.Generic;
using System.IO;
using System.Text;
using HttpServer;
using OpenMetaverse;
using System.Reflection;
using log4net;
namespace OpenSim.Framework.Servers.HttpServer
{
public delegate void ReQueuePollServiceItem(PollServiceHttpRequest req);
public class PollServiceWorkerThread
{
private static readonly ILog m_log =
LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
public event ReQueuePollServiceItem ReQueue;
private readonly BaseHttpServer m_server;
private BlockingQueue<PollServiceHttpRequest> m_request;
private bool m_running = true;
private int m_timeout = 250;
public PollServiceWorkerThread(BaseHttpServer pSrv, int pTimeout)
{
m_request = new BlockingQueue<PollServiceHttpRequest>();
m_server = pSrv;
m_timeout = pTimeout;
}
public void ThreadStart()
{
Run();
}
public void Run()
{
while (m_running)
{
PollServiceHttpRequest req = m_request.Dequeue();
Watchdog.UpdateThread();
try
{
if (req.PollServiceArgs.HasEvents(req.RequestID, req.PollServiceArgs.Id))
{
StreamReader str;
try
{
str = new StreamReader(req.Request.Body);
}
catch (System.ArgumentException)
{
// Stream was not readable means a child agent
// was closed due to logout, leaving the
// Event Queue request orphaned.
continue;
}
Hashtable responsedata = req.PollServiceArgs.GetEvents(req.RequestID, req.PollServiceArgs.Id, str.ReadToEnd());
m_server.DoHTTPGruntWork(responsedata,
new OSHttpResponse(new HttpResponse(req.HttpContext, req.Request),req.HttpContext));
}
else
{
if ((Environment.TickCount - req.RequestTime) > m_timeout)
{
m_server.DoHTTPGruntWork(req.PollServiceArgs.NoEvents(req.RequestID, req.PollServiceArgs.Id),
new OSHttpResponse(new HttpResponse(req.HttpContext, req.Request),req.HttpContext));
}
else
{
ReQueuePollServiceItem reQueueItem = ReQueue;
if (reQueueItem != null)
reQueueItem(req);
}
}
}
catch (Exception e)
{
m_log.ErrorFormat("Exception in poll service thread: " + e.ToString());
}
}
}
internal void Enqueue(PollServiceHttpRequest pPollServiceHttpRequest)
{
m_request.Enqueue(pPollServiceHttpRequest);
}
}
}
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