29 lines
575 B
C++
29 lines
575 B
C++
#include "StdAfx.h"
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#include "tickclock.h"
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#pragma region TickClock
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TickClock::TickClock()
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{
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::memset(&m_freq, 0, sizeof(LARGE_INTEGER));
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::QueryPerformanceFrequency(&m_freq);
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}
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void TickClock::start()
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{
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::memset(&m_start, 0, sizeof(LARGE_INTEGER));
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QueryPerformanceCounter(&m_start);
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}
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LONGLONG TickClock::end(bool bMillisecond)
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{
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LARGE_INTEGER now;
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::memset(&now, 0, sizeof(LARGE_INTEGER));
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QueryPerformanceCounter(&now);
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LONGLONG delta(now.QuadPart - m_start.QuadPart);
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return bMillisecond ? (delta * 1000 / m_freq.QuadPart) : delta;
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}
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#pragma endregion
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