C++ TTime::DayNoInWeek方法代码示例

void CPigeonScheduledSend::PopulateOffPeakListL()
{
    //There are no existing off peak times set up
    //So no need to remember them
    iOffPeakList->Reset();

    TTime t;
    TDateTime d;
    t.HomeTime();
    t -= TTimeIntervalHours(1);
    d = t.DateTime();

    TTimeIntervalMinutes twoHours = 120;

    TMsvOffPeakTime current(t.DayNoInWeek(), d.Hour(), d.Minute(), twoHours);
    iOffPeakList->AppendL(current);

    t -= TTimeIntervalDays(1);
    d = t.DateTime();
    TMsvOffPeakTime yesterday(t.DayNoInWeek(), d.Hour(), d.Minute(), twoHours);
    iOffPeakList->AppendL(yesterday);

    t += TTimeIntervalDays(2);
    d = t.DateTime();
    TMsvOffPeakTime tomorrow(t.DayNoInWeek(), d.Hour(), d.Minute(), twoHours);
    iOffPeakList->AppendL(tomorrow);
}

TBool Util::DaylightSavingsAppliesL(const TTime& utc)
	{
	
	// This algorithm needs the first day of the week to be monday
	
	TDay oldStart;
	
	TLocale set;
	oldStart = set.StartOfWeek();
	set.SetStartOfWeek(EMonday);
	set.Set();
	
	TBuf<9> min;
	TBuf<9> max;
	
	utc.FormatL(min, KDaylightSavingsMinFormat);
	utc.FormatL(max, KDaylightSavingsMaxFormat);
	
	// Get times representing the first/last possible day of this 
	// year that daylight savings time change could change on
	
	TTime timeMin;
	User::LeaveIfError(timeMin.Set(min));
	TTime timeMax;
	User::LeaveIfError(timeMax.Set(max));

	// Find the last sunday in the respective months
	
	TTimeIntervalDays addMin(6 - timeMin.DayNoInWeek());
	TTimeIntervalDays addMax(6 - timeMax.DayNoInWeek());
	
	timeMin += addMin;
	timeMax += addMax;
	
	// The change happens at 1AM.
	TTimeIntervalHours hour(1);
	timeMin += hour;
	timeMax += hour;
	
	// Now we know which day the change occurs on.
	// Compare it to what the UTC is.

	TBool result = ((timeMin <= utc) && (timeMax > utc));
	
	// reset the first week day
	set.SetStartOfWeek(oldStart);
	set.Set();
	
	return result;
	
	}

static struct tm& as_struct_tm (const time_t& t, struct tm& res)
{
    TTime us = UNIX_BASE + TTimeIntervalSeconds(t);
    TDateTime dt = us.DateTime();

    res.tm_sec  = dt.Second();
    res.tm_min  = dt.Minute();
    res.tm_hour = dt.Hour();
    res.tm_mday = dt.Day() + 1;
    res.tm_mon  = dt.Month();
    res.tm_year = dt.Year() - 1900;

    // EPOC32 counts the year day as Jan 1st == day 1
    res.tm_yday = us.DayNoInYear() - 1;

    // EPOC32 counts the weekdays from 0==Monday to 6==Sunday
    res.tm_wday = us.DayNoInWeek() + 1;
    if (res.tm_wday==7)
        res.tm_wday=0;	// Sunday==0 in a struct tm

    // newlib just sets this field to -1
    // tm_isdst doesn't really make sense here since we don't
    // know the locale for which to interpret this time.

    res.tm_isdst = -1;

    return res;
}

EXPORT_C TBool StartsAt(const TMsvOffPeakTime& time1, const TTime& time2)
	{
	TDateTime dateTime2 = time2.DateTime();

	if(time1.Day() != time2.DayNoInWeek()) return EFalse;
	if(time1.Hour() != dateTime2.Hour()) return EFalse;
	if(time1.Minute() != dateTime2.Minute()) return EFalse;
	return ETrue;
	}

// ----------------------------------------------------------------------------
// MPXDbUtil::DayNoInWeek
// ----------------------------------------------------------------------------
//
TInt MPXDbUtil::DayNoInWeek()
    {
    MPX_FUNC("MPXDbUtil::DayNoInWeek");

    TTime now;  // in microseconds
    now.HomeTime();

    // Calculate number of days in this week
    TDay dayNo = now.DayNoInWeek();
    TDay firstDay = TLocale().StartOfWeek();
    TInt numDay(0);
    if (firstDay == ESunday)
        {
        numDay = dayNo + 1;
        }
    else
        {
        numDay = dayNo - firstDay;
        }

    return numDay;
    }