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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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 * 
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#ifndef INCLUDED_CANVAS_PRIORITYBOOSTER_HXX
#define INCLUDED_CANVAS_PRIORITYBOOSTER_HXX

#include <sal/types.h>

#include <memory>
#include <canvas/canvastoolsdllapi.h>


namespace canvas
{
    namespace tools
    {
        struct PriorityBooster_Impl;

        /** Simplistic RAII object, to temporarily boost execution
            priority for the current scope.
         */
        class PriorityBooster
        {
        public:
            /** Create booster, with given priority delta

            	@param nDelta
                Difference in execution priority. Positive values
                increase prio, negative values decrease prio.
             */
             CANVASTOOLS_DLLPUBLIC explicit PriorityBooster( sal_Int32 nDelta );
             CANVASTOOLS_DLLPUBLIC ~PriorityBooster();

        private:
            // also disables copy constructor and assignment operator
            const ::std::auto_ptr< PriorityBooster_Impl > mpImpl;
        };
    }
}

#endif /* INCLUDED_CANVAS_PRIORITYBOOSTER_HXX */
// eof