56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
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#include "pch.h"
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#include "TimeFunctions.h"
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#pragma unmanaged
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TimeFunctions::TimeFunctions()
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{
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}
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void TimeFunctions::EpdTimeToFileTime( INT32 t, LPFILETIME pft, bool isMK2) //MK3
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{
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LONGLONG offset ;
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if (isMK2) offset = 116444736000000000; else offset = 125911584000000000;;
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LONGLONG ll;
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ll = Int32x32To64(t, 10000000) + offset; //1601-1-1 -> 2000
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pft->dwLowDateTime = (DWORD)ll;
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pft->dwHighDateTime = ll >> 32;
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}
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void TimeFunctions::FileTimeToEpdTime( FILETIME pft, INT32* t, bool isMK2)
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{
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LONGLONG offset;
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if (isMK2) offset = 116444736000000000; else offset = 125911584000000000;
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LONGLONG ll = ((((LONGLONG)pft.dwHighDateTime << 32) + pft.dwLowDateTime) - offset) / 10000000;
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*t = (DWORD)ll;
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}
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INT32 TimeFunctions::NowToEpdTime(bool isMK2)
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{
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LONGLONG offset;
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if (isMK2) offset = 116444736000000000; else offset = 125911584000000000;
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SYSTEMTIME t;
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GetSystemTime(&t);
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FILETIME ft;
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SystemTimeToFileTime((const SYSTEMTIME *)&t, &ft);
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LONGLONG ll = ((((LONGLONG)ft.dwHighDateTime << 32U) + ft.dwLowDateTime) - offset) / 10000000;
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return (DWORD)ll;
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}
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void TimeFunctions::UnixTimeToFileTime(time_t t, LPFILETIME pft)
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{
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// Note that LONGLONG is a 64-bit value
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LONGLONG ll;
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ll = Int32x32To64(t, 10000000) + 116444736000000000; //1601-1-1 1970-1-1
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pft->dwLowDateTime = (DWORD)ll;
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pft->dwHighDateTime = ll >> 32;
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}
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void TimeFunctions::UnixTimeToSystemTime(time_t t, LPSYSTEMTIME pst)
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{
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FILETIME ft;
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UnixTimeToFileTime(t, &ft);
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FileTimeToSystemTime(&ft, pst);
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}
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