opensim/OpenSim/Framework/Servers/OSHttpRequestQueue.cs

/*
 * 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:
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 *       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 OpenSim 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
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Threading;
using HttpServer;

namespace OpenSim.Framework.Servers
{
    /// <summary>
    /// OSHttpRequestQueues are used to hand over incoming HTTP
    /// requests to OSHttpRequestPump objects.
    /// </summary>
    public class OSHttpRequestQueue : Queue<OSHttpRequest>
    {
        private object _syncObject = new object();

        new public void Enqueue(OSHttpRequest req)
        {
            lock (_syncObject)
            {
                base.Enqueue(req);
                Monitor.Pulse(_syncObject);
            }
        }

        new public OSHttpRequest Dequeue()
        {
            OSHttpRequest req = null;

            lock (_syncObject)
            {
                while (null == req)
                {
                    Monitor.Wait(_syncObject);
                    if (0 != this.Count) req = base.Dequeue();
                }
            }

            return req;
        }
    }
}