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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_canvas.hxx"


#ifdef WNT
# if defined _MSC_VER
# pragma warning(push,1)
# endif

# include <windows.h>

# if defined _MSC_VER
# pragma warning(pop)
# endif
#endif

#include "osl/diagnose.h"
#include "canvas/prioritybooster.hxx"


namespace canvas
{
    namespace tools
    {
        struct PriorityBooster_Impl
        {
            int mnOldPriority;
        };

        PriorityBooster::PriorityBooster( sal_Int32 nDelta ) :
            mpImpl( new PriorityBooster_Impl )
        {
#ifdef WNT
            HANDLE aCurrThread = GetCurrentThread();
            mpImpl->mnOldPriority = GetThreadPriority( aCurrThread );

            if ( 0 == SetThreadPriority( aCurrThread, mpImpl->mnOldPriority + nDelta ) )
            {
                OSL_FAIL( "PriorityBooster::PriorityBooster(): Was not able to modify thread priority" );
            }
#else
            (void)nDelta;
#endif
        }

        PriorityBooster::~PriorityBooster()
        {
#ifdef WNT
            SetThreadPriority( GetCurrentThread(),
                               mpImpl->mnOldPriority );
#endif
        }
    } // namespace tools

} // namespace canvas

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