source: downloads/ogre_src_v1-9-0/OgreMain/include/Threading/OgreDefaultWorkQueueStandard.h @ 148

/*-------------------------------------------------------------------------
This source file is a part of OGRE
(Object-oriented Graphics Rendering Engine)

For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2013 Torus Knot Software Ltd
Permission is hereby granted, free of charge, to any person obtaining a copy
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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-------------------------------------------------------------------------*/
#ifndef __OgreDefaultWorkQueueStandard_H__
#define __OgreDefaultWorkQueueStandard_H__

#include "../OgreWorkQueue.h"

namespace Ogre
{
        /** Implementation of a general purpose request / response style background work queue.
        @remarks
                This default implementation of a work queue starts a thread pool and 
                provides queues to process requests. 
        */
        class _OgreExport DefaultWorkQueue : public DefaultWorkQueueBase
        {
        public:

                DefaultWorkQueue(const String& name = StringUtil::BLANK);
                virtual ~DefaultWorkQueue(); 

                /// Main function for each thread spawned.
                virtual void _threadMain();

                /// @copydoc WorkQueue::shutdown
                virtual void shutdown();

                /// @copydoc WorkQueue::startup
                virtual void startup(bool forceRestart = true);

        protected:
                /** To be called by a separate thread; will return immediately if there
                        are items in the queue, or suspend the thread until new items are added
                        otherwise.
                */
                virtual void waitForNextRequest();

                /// Notify that a thread has registered itself with the render system
                virtual void notifyThreadRegistered();

                virtual void notifyWorkers();

                size_t mNumThreadsRegisteredWithRS;
                /// Init notification mutex (must lock before waiting on initCondition)
                OGRE_MUTEX(mInitMutex);
                /// Synchroniser token to wait / notify on thread init 
                OGRE_THREAD_SYNCHRONISER(mInitSync);

                OGRE_THREAD_SYNCHRONISER(mRequestCondition);
#if OGRE_THREAD_SUPPORT
                typedef vector<OGRE_THREAD_TYPE*>::type WorkerThreadList;
                WorkerThreadList mWorkers;
#endif

        };

}

#endif