SemaphoreImpl.h

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//==============================================================================================
//  FILENAME    :   SemaphoreImpl.h
//  AUTHOR      :   Douglas Meyer
//  CREATION    :   10/29/2001
//  Copyright (C) MicroStrategy Incorporated 2001
//==============================================================================================
#ifndef MSynch_SemaphoreImpl_h
#define MSynch_SemaphoreImpl_h

#include "../Semaphore.h"
#include "../ProtectedSource/InprocessSemaphore.h"

namespace MSynch
{
    class SemaphoreImpl:
        public Semaphore
    {
    public:
        SemaphoreImpl(unsigned Int32 inInitialAvailableResourceCount,unsigned Int32 inMaximumResourceCount);

        void Delete() throw();

        Semaphore::WaitForResourceResult WaitForResource(unsigned Int32 iMilliseconds);

        // Same as WaitForResource but does not timeout. Waits forever for resource.
        Semaphore::WaitForResourceResult WaitForeverForResource();

        void ResourceIsAvailable();

    private:
        virtual ~SemaphoreImpl() throw();   
        InprocessSemaphore mSemaphore;
    };
}

#endif // MSynch_SemaphoreImpl_h