/******************************************************************************
* RtlTimeFieldsToTime [NTDLL.@]
*
* Convert a TIME_FIELDS structure into a time.
*
* PARAMS
* ftTimeFields [I] TIME_FIELDS structure to convert.
* Time [O] Destination for the converted time.
*
* RETURNS
* Success: TRUE.
* Failure: FALSE.
*/
BOOLEAN WINAPI RtlTimeFieldsToTime(
PTIME_FIELDS tfTimeFields,
LARGE_INTEGER *Time) {
int CurYear, CurMonth, DeltaYear;
LONGLONG rcTime;
TIME_FIELDS TimeFields = *tfTimeFields;
TRACEN((printf("RtlTimeFieldsToTime\n")))
rcTime = 0;
/* FIXME: normalize the TIME_FIELDS structure here */
while (TimeFields.Second >= SECSPERMIN) {
NormalizeTimeFields(&TimeFields.Second, &TimeFields.Minute, SECSPERMIN);
}
while (TimeFields.Minute >= MINSPERHOUR) {
NormalizeTimeFields(&TimeFields.Minute, &TimeFields.Hour, MINSPERHOUR);
}
while (TimeFields.Hour >= HOURSPERDAY) {
NormalizeTimeFields(&TimeFields.Hour, &TimeFields.Day, HOURSPERDAY);
}
while (TimeFields.Day > MonthLengths[IsLeapYear(TimeFields.Year)][TimeFields.Month - 1]) {
NormalizeTimeFields(&TimeFields.Day, &TimeFields.Month, SECSPERMIN);
}
while (TimeFields.Month > MONSPERYEAR) {
NormalizeTimeFields(&TimeFields.Month, &TimeFields.Year, MONSPERYEAR);
}
/* FIXME: handle calendar corrections here */
CurYear = TimeFields.Year - EPOCHYEAR;
DeltaYear = CurYear / 400;
CurYear -= DeltaYear * 400;
rcTime += DeltaYear * DAYSPERQUADRICENTENNIUM;
DeltaYear = CurYear / 100;
CurYear -= DeltaYear * 100;
rcTime += DeltaYear * DAYSPERNORMALCENTURY;
DeltaYear = CurYear / 4;
CurYear -= DeltaYear * 4;
rcTime += DeltaYear * DAYSPERNORMALQUADRENNIUM;
rcTime += CurYear * DAYSPERNORMALYEAR;
for (CurMonth = 1; CurMonth < TimeFields.Month; CurMonth++) {
rcTime += MonthLengths[IsLeapYear(CurYear)][CurMonth - 1];
}
rcTime += TimeFields.Day - 1;
rcTime *= SECSPERDAY;
rcTime += TimeFields.Hour * SECSPERHOUR + TimeFields.Minute * SECSPERMIN + TimeFields.Second;
rcTime *= TICKSPERSEC;
rcTime += TimeFields.Milliseconds * TICKSPERMSEC;
Time->QuadPart = rcTime;
return TRUE;
}
/******************************************************************************
* RtlTimeFieldsToTime [NTDLL.@]
*
*/
BOOLEAN WINAPI RtlTimeFieldsToTime(
PTIME_FIELDS tfTimeFields,
PLARGE_INTEGER Time)
{
int CurYear, CurMonth;
long long int rcTime;
TIME_FIELDS TimeFields = *tfTimeFields;
rcTime = 0;
/* FIXME: normalize the TIME_FIELDS structure here */
while (TimeFields.Second >= SECSPERMIN)
{ NormalizeTimeFields(&TimeFields.Second, &TimeFields.Minute, SECSPERMIN);
}
while (TimeFields.Minute >= MINSPERHOUR)
{ NormalizeTimeFields(&TimeFields.Minute, &TimeFields.Hour, MINSPERHOUR);
}
while (TimeFields.Hour >= HOURSPERDAY)
{ NormalizeTimeFields(&TimeFields.Hour, &TimeFields.Day, HOURSPERDAY);
}
while (TimeFields.Day > MonthLengths[IsLeapYear(TimeFields.Year)][TimeFields.Month - 1])
{ NormalizeTimeFields(&TimeFields.Day, &TimeFields.Month, SECSPERMIN);
}
while (TimeFields.Month > MONSPERYEAR)
{ NormalizeTimeFields(&TimeFields.Month, &TimeFields.Year, MONSPERYEAR);
}
/* FIXME: handle calendar corrections here */
for (CurYear = EPOCHYEAR; CurYear < TimeFields.Year; CurYear++)
{ rcTime += YearLengths[IsLeapYear(CurYear)];
}
for (CurMonth = 1; CurMonth < TimeFields.Month; CurMonth++)
{ rcTime += MonthLengths[IsLeapYear(CurYear)][CurMonth - 1];
}
rcTime += TimeFields.Day - 1;
rcTime *= SECSPERDAY;
rcTime += TimeFields.Hour * SECSPERHOUR + TimeFields.Minute * SECSPERMIN + TimeFields.Second;
rcTime *= TICKSPERSEC;
rcTime += TimeFields.Milliseconds * TICKSPERMSEC;
*Time = *(LARGE_INTEGER *)&rcTime;
return TRUE;
}
