Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CPP/Windows/Time.cpp

-// Windows/Time.cpp
-
-#include "StdAfx.h"
-
-#include "Time.h"
-#include "Windows/Defs.h"
-
-namespace NWindows {
-namespace NTime {
-
-bool DosTimeToFileTime(UInt32 dosTime, FILETIME &fileTime)
-{
-  return BOOLToBool(::DosDateTimeToFileTime((UInt16)(dosTime >> 16), (UInt16)(dosTime & 0xFFFF), &fileTime));
-}
-
-static const UInt32 kHighDosTime = 0xFF9FBF7D;
-static const UInt32 kLowDosTime = 0x210000;
-
-bool FileTimeToDosTime(const FILETIME &fileTime, UInt32 &dosTime)
-{
-  WORD datePart, timePart;
-  if (!::FileTimeToDosDateTime(&fileTime, &datePart, &timePart))
-  {
-    dosTime = (fileTime.dwHighDateTime >= 0x01C00000) ? kHighDosTime : kLowDosTime;
-    return false;
-  }
-  dosTime = (((UInt32)datePart) << 16) + timePart;
-  return true;
-}
-
-static const UInt32 kNumTimeQuantumsInSecond = 10000000;
-static const UInt64 kUnixTimeStartValue = ((UInt64)kNumTimeQuantumsInSecond) * 60 * 60 * 24 * 134774;
-
-void UnixTimeToFileTime(UInt32 unixTime, FILETIME &fileTime)
-{
-  UInt64 v = kUnixTimeStartValue + ((UInt64)unixTime) * kNumTimeQuantumsInSecond;
-  fileTime.dwLowDateTime = (DWORD)v;
-  fileTime.dwHighDateTime = (DWORD)(v >> 32);
-}
-
-bool FileTimeToUnixTime(const FILETIME &fileTime, UInt32 &unixTime)
-{
-  UInt64 winTime = (((UInt64)fileTime.dwHighDateTime) << 32) + fileTime.dwLowDateTime;
-  if (winTime < kUnixTimeStartValue)
-  {
-    unixTime = 0;
-    return false;
-  }
-  winTime = (winTime - kUnixTimeStartValue) / kNumTimeQuantumsInSecond;
-  if (winTime > 0xFFFFFFFF)
-  {
-    unixTime = 0xFFFFFFFF;
-    return false;
-  }
-  unixTime = (UInt32)winTime;
-  return true;
-}
-
-bool GetSecondsSince1601(unsigned year, unsigned month, unsigned day,
-  unsigned hour, unsigned min, unsigned sec, UInt64 &resSeconds)
-{
-  resSeconds = 0;
-  if (year < 1601 || year >= 10000 || month < 1 || month > 12 ||
-      day < 1 || day > 31 || hour > 23 || min > 59 || sec > 59)
-    return false;
-  UInt32 numYears = year - 1601;
-  UInt32 numDays = numYears * 365 + numYears / 4 - numYears / 100 + numYears / 400;
-  Byte ms[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
-  if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))
-    ms[1] = 29;
-  month--;
-  for (unsigned i = 0; i < month; i++)
-    numDays += ms[i];
-  numDays += day - 1;
-  resSeconds = ((UInt64)(numDays * 24 + hour) * 60 + min) * 60 + sec;
-  return true;
-}
-
-void GetCurUtcFileTime(FILETIME &ft)
-{
-  SYSTEMTIME st;
-  GetSystemTime(&st);
-  SystemTimeToFileTime(&st, &ft);
-}
-
-}}