/*M///////////////////////////////////////////////////////////////////////////////////////
//
//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
//  By downloading, copying, installing or using the software you agree to this license.
//  If you do not agree to this license, do not download, install,
//  copy or use the software.
//
//
//                          License Agreement
//                For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
//   * Redistribution's of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//
//   * Redistribution's 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.
//
//   * The name of the copyright holders may not be used to endorse or promote products
//     derived from this software without specific prior written permission.
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// This software is provided by the copyright holders and contributors "as is" and
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// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
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//M*/

#ifndef __THREAD_WRAPPERS_H__
#define __THREAD_WRAPPERS_H__

#include "precomp.hpp"

#if defined(HAVE_CUDA) && !defined(__APPLE__)

namespace cv { namespace gpu 
{
    namespace detail
    {
        class CriticalSection
        {
        public:
            CriticalSection();
            ~CriticalSection();

            void enter();
            void leave();

            class AutoLock
            {
            public:
                explicit AutoLock(CriticalSection& criticalSection) :
                    criticalSection_(criticalSection)
                {
                    criticalSection_.enter();
                }

                ~AutoLock()
                {
                    criticalSection_.leave();
                }

            private:
                CriticalSection& criticalSection_;
            };

        private:
            CriticalSection(const CriticalSection&);
            CriticalSection& operator=(const CriticalSection&);

            class Impl;
            std::auto_ptr<Impl> impl_;
        };

        class Thread
        {
        public:
            explicit Thread(void (*func)(void* userData), void* userData = 0);
            ~Thread();

            void wait();

            static void sleep(int ms);

        private:
            Thread(const Thread&);
            Thread& operator=(const Thread&);

            class Impl;
            std::auto_ptr<Impl> impl_;
        };

    }
}}

#endif // HAVE_CUDA

#endif // __THREAD_WRAPPERS_H__