112 lines
No EOL
2.9 KiB
C++
112 lines
No EOL
2.9 KiB
C++
#include "stdafx.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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lu.LL = 0;
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}
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time_t FileTime_to_POSIX_DST(FILETIME ft)
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{
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FILETIME localFileTime;
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FileTimeToLocalFileTime(&ft, &localFileTime);
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SYSTEMTIME sysTime;
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FileTimeToSystemTime(&localFileTime, &sysTime);
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struct tm tmtime = { 0 };
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tmtime.tm_year = sysTime.wYear - 1900;
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tmtime.tm_mon = sysTime.wMonth - 1;
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tmtime.tm_mday = sysTime.wDay;
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tmtime.tm_hour = sysTime.wHour;
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tmtime.tm_min = sysTime.wMinute;
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tmtime.tm_sec = sysTime.wSecond;
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tmtime.tm_wday = 0;
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tmtime.tm_yday = 0;
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tmtime.tm_isdst = -1;
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time_t ret = mktime(&tmtime);
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return ret;
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}
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UINT32 FileTime_to_POSIX(FILETIME ft)
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{
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// takes the last modified date
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LARGE_INTEGER date, adjust;
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date.HighPart = ft.dwHighDateTime;
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date.LowPart = ft.dwLowDateTime;
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// 100-nanoseconds = milliseconds * 10000
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adjust.QuadPart = 11644473600000 * 10000;
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// removes the diff between 1970 and 1601
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date.QuadPart -= adjust.QuadPart;
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// converts back from 100-nanoseconds to seconds
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return (UINT32)(date.QuadPart / 10000000);
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}
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UINT32 UnixTimeNow() {
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FILETIME ft;
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GetSystemTimeAsFileTime(&ft);
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return FileTime_to_POSIX(ft);
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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;
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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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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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UINT32 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::EPD2PeakTimeToFiletime(DWORD EpdClock, DWORD EpdPeakTime, FILETIME *PeakFileTime ) {
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if (EpdPeakTime != 0xCDCDCDCD) {
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UINT32 tm = EpdClock - EpdPeakTime; //seconden geleden
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GetSystemTimeAsFileTime(&lu.FT);
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lu.LL -= UInt32x32To64(tm, 10000000UL);
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*PeakFileTime = lu.FT;
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}
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else {
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(*PeakFileTime).dwLowDateTime = (*PeakFileTime).dwHighDateTime = 0;
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}
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}
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