67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
|
// Windows/Time.h
|
||
|
|
|
||
|
|
#ifndef __WINDOWS_TIME_H
|
||
|
|
#define __WINDOWS_TIME_H
|
||
|
|
|
||
|
|
#include "Common/Types.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));
|
||
|
|
}
|
||
|
|
|
||
|
|
const UInt32 kHighDosTime = 0xFF9FBF7D;
|
||
|
|
const UInt32 kLowDosTime = 0x210000;
|
||
|
|
|
||
|
|
inline bool FileTimeToDosTime(const FILETIME &fileTime, UInt32 &dosTime)
|
||
|
|
{
|
||
|
|
WORD datePart, timePart;
|
||
|
|
if (!::FileTimeToDosDateTime(&fileTime, &datePart, &timePart))
|
||
|
|
{
|
||
|
|
if (fileTime.dwHighDateTime >= 0x01C00000) // 2000
|
||
|
|
dosTime = kHighDosTime;
|
||
|
|
else
|
||
|
|
dosTime = kLowDosTime;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
dosTime = (((UInt32)datePart) << 16) + timePart;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
const UInt32 kNumTimeQuantumsInSecond = 10000000;
|
||
|
|
const UInt64 kUnixTimeStartValue = ((UInt64)kNumTimeQuantumsInSecond) * 60 * 60 * 24 * 134774;
|
||
|
|
|
||
|
|
inline void UnixTimeToFileTime(UInt32 unixTime, FILETIME &fileTime)
|
||
|
|
{
|
||
|
|
UInt64 v = kUnixTimeStartValue + ((UInt64)unixTime) * kNumTimeQuantumsInSecond;
|
||
|
|
fileTime.dwLowDateTime = (DWORD)v;
|
||
|
|
fileTime.dwHighDateTime = (DWORD)(v >> 32);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
}}
|
||
|
|
|
||
|
|
#endif
|