Performance.h

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#ifndef MiscLib__PERFORMANCE_HEADER__
#define MiscLib__PERFORMANCE_HEADER__
#ifdef WIN32
#include <windows.h>
#undef max
#undef min
#endif
 
namespace MiscLib
{
#ifdef WIN32
    typedef __int64 performance_t;
 
    inline performance_t
    GetPerformanceCounter()
    {
        LARGE_INTEGER count;
        QueryPerformanceCounter(&count);
        return count.QuadPart;
    }
 
    inline double
    GetPerformanceFreq()
    {
        LARGE_INTEGER dummy_performance_freq;
        QueryPerformanceFrequency(&dummy_performance_freq);
        performance_t performance_freq = dummy_performance_freq.QuadPart;
        return double(performance_freq);
    }
#else
    typedef clock_t performance_t;
 
    inline performance_t
    GetPerformanceCounter()
    {
        return clock();
    }
 
    inline double
    GetPerformanceFreq()
    {
        return double(CLOCKS_PER_SEC);
    }
#endif
}; // namespace MiscLib
 
#endif