Files
easy7zip/Windows/Time.h
Igor Pavlov 8c1b5c7b7e 3.13
2016-05-28 00:15:41 +01:00

59 lines
1.4 KiB
C++
Executable File

// Windows/Time.h
#pragma once
#ifndef __WINDOWS_TIME_H
#define __WINDOWS_TIME_H
#include "Common/Types.h"
// #include <windows.h>
// #include <time.h>
#include "Windows/Defs.h"
namespace NWindows {
namespace NTime {
inline bool DosTimeToFileTime(UINT32 dosTime, FILETIME &fileTime)
{
return BOOLToBool(::DosDateTimeToFileTime(UINT16(dosTime >> 16),
UINT16(dosTime & 0xFFFF), &fileTime));
}
inline bool FileTimeToDosTime(const FILETIME &fileTime, UINT32 &dosTime)
{
return BOOLToBool(::FileTimeToDosDateTime(&fileTime,
((LPWORD)&dosTime) + 1, (LPWORD)&dosTime));
}
const UINT64 kUnixTimeStartValue =
#if ( __GNUC__)
116444736000000000LL;
#else
116444736000000000;
#endif
const UINT32 kNumTimeQuantumsInSecond = 10000000;
inline void UnixTimeToFileTime(long unixTime, FILETIME &fileTime)
{
ULONGLONG ll = UInt32x32To64(unixTime, kNumTimeQuantumsInSecond) +
kUnixTimeStartValue;
fileTime.dwLowDateTime = (DWORD) ll;
fileTime.dwHighDateTime = DWORD(ll >> 32);
}
inline bool FileTimeToUnixTime(const FILETIME &fileTime, long &unixTime)
{
UINT64 winTime = (((UINT64)fileTime.dwHighDateTime) << 32) + fileTime.dwLowDateTime;
if (winTime < kUnixTimeStartValue)
return false;
winTime = (winTime - kUnixTimeStartValue) / kNumTimeQuantumsInSecond;
if (winTime >= 0xFFFFFFFF)
return false;
unixTime = (long)winTime;
return true;
}
}}
#endif