/*********************************************************************
* @fn osal_ConvertUTCTime
*
* @brief Converts UTCTime to UTCTimeStruct
*
* @param tm - pointer to breakdown struct
*
* @param secTime - number of seconds since 0 hrs, 0 minutes,
* 0 seconds, on the 1st of January 2000 UTC
*
* @return none
*/
void osal_ConvertUTCTime( UTCTimeStruct *tm, UTCTime secTime )
{
// calculate the time less than a day - hours, minutes, seconds
{
uint32 day = secTime % DAY;
tm->seconds = day % 60UL;
tm->minutes = (day % 3600UL) / 60UL;
tm->hour = day / 3600UL;
}
// Fill in the calendar - day, month, year
{
uint16 numDays = secTime / DAY;
tm->year = BEGYEAR;
while ( numDays >= YearLength( tm->year ) )
{
numDays -= YearLength( tm->year );
tm->year++;
}
tm->month = 0;
while ( numDays >= monthLength( IsLeapYear( tm->year ), tm->month ) )
{
numDays -= monthLength( IsLeapYear( tm->year ), tm->month );
tm->month++;
}
tm->day = numDays;
}
}
/*********************************************************************
* @fn osal_ConvertUTCSecs
*
* @brief Converts a UTCTimeStruct to UTCTime
*
* @param tm - pointer to provided struct
*
* @return number of seconds since 00:00:00 on 01/01/2000 (UTC)
*/
UTCTime osal_ConvertUTCSecs(UTCTimeStruct *tm)
{
uint32 seconds;
/* Seconds for the partial day */
seconds = (((tm->hour * 60UL) + tm->minutes) * 60UL) + tm->seconds;
/* Account for previous complete days */
{
/* Start with complete days in current month */
uint16 days = tm->day;
/* Next, complete months in current year */
{
int8 month = tm->month;
// while (--month >= 0) { // modify by xyz - 2014.10.31
while (--month > 0) {
days += monthLength(IsLeapYear(tm->year), month);
}
}
/* Next, complete years before current year */
{
uint16 year = tm->year;
while (--year >= BEGYEAR) {
days += YearLength(year);
}
}
/* Add total seconds before partial day */
seconds += (days * DAY);
}
return (seconds);
}
/**
* After adjustments such as add(MONTH), add(YEAR), we don't want the
* month to jump around. E.g., we don't want Jan 31 + 1 month to go to Mar
* 3, we want it to go to Feb 28. Adjustments which might run into this
* problem call this method to retain the proper month.
*/
void
GregorianCalendar::pinDayOfMonth()
{
int32_t monthLen = monthLength(internalGet(UCAL_MONTH));
int32_t dom = internalGet(UCAL_DATE);
if(dom > monthLen)
set(UCAL_DATE, monthLen);
}
int32_t Grego::dayOfWeekInMonth(int32_t year, int32_t month, int32_t dom) {
int32_t weekInMonth = (dom + 6)/7;
if (weekInMonth == 4) {
if (dom + 7 > monthLength(year, month)) {
weekInMonth = -1;
}
} else if (weekInMonth == 5) {
weekInMonth = -1;
}
return weekInMonth;
}
Date::Date(Day d, Month m, Year y) {
QL_REQUIRE(y > 1900 && y < 2200,
"year " << y << " out of bound. It must be in [1901,2199]");
QL_REQUIRE(Integer(m) > 0 && Integer(m) < 13,
"month " << Integer(m)
<< " outside January-December range [1,12]");
bool leap = isLeap(y);
Day len = monthLength(m,leap), offset = monthOffset(m,leap);
QL_REQUIRE(d <= len && d > 0,
"day outside month (" << Integer(m) << ") day-range "
<< "[1," << len << "]");
serialNumber_ = d + offset + yearOffset(y);
}
Date Date::advance(const Date& date, Integer n, TimeUnit units) {
switch (units) {
case Days:
return date + n;
case Weeks:
return date + 7*n;
case Months: {
Day d = date.dayOfMonth();
Integer m = Integer(date.month())+n;
Year y = date.year();
while (m > 12) {
m -= 12;
y += 1;
}
while (m < 1) {
m += 12;
y -= 1;
}
QL_ENSURE(y >= 1900 && y <= 2199,
"year " << y << " out of bounds. "
<< "It must be in [1901,2199]");
Integer length = monthLength(Month(m), isLeap(y));
if (d > length)
d = length;
return Date(d, Month(m), y);
}
case Years: {
Day d = date.dayOfMonth();
Month m = date.month();
Year y = date.year()+n;
QL_ENSURE(y >= 1900 && y <= 2199,
"year " << y << " out of bounds. "
<< "It must be in [1901,2199]");
if (d == 29 && m == February && !isLeap(y))
d = 28;
return Date(d,m,y);
}
default:
QL_FAIL("undefined time units");
}
}
TimeFrame::TimeFrame()
{
int i = 0,j = 0;
for(int I = 1; I <= 12;I++)
{
int dim = monthLength(I);
for(int J = 1;J<=dim;J++)
{
j++;
for(int K=1;K<=24;K++)
{
assert(i < TIMESLICES);
Hour[i] = K;
Day[i] = J;
Month[i] = I;
YTD[i++] = j;
}
}
}
}
UBool
GregorianCalendar::validateFields() const
{
for (int32_t field = 0; field < UCAL_FIELD_COUNT; field++) {
// Ignore DATE and DAY_OF_YEAR which are handled below
if (field != UCAL_DATE &&
field != UCAL_DAY_OF_YEAR &&
isSet((UCalendarDateFields)field) &&
! boundsCheck(internalGet((UCalendarDateFields)field), (UCalendarDateFields)field))
return FALSE;
}
// Values differ in Least-Maximum and Maximum should be handled
// specially.
if (isSet(UCAL_DATE)) {
int32_t date = internalGet(UCAL_DATE);
if (date < getMinimum(UCAL_DATE) ||
date > monthLength(internalGet(UCAL_MONTH))) {
return FALSE;
}
}
if (isSet(UCAL_DAY_OF_YEAR)) {
int32_t days = internalGet(UCAL_DAY_OF_YEAR);
if (days < 1 || days > yearLength()) {
return FALSE;
}
}
// Handle DAY_OF_WEEK_IN_MONTH, which must not have the value zero.
// We've checked against minimum and maximum above already.
if (isSet(UCAL_DAY_OF_WEEK_IN_MONTH) &&
0 == internalGet(UCAL_DAY_OF_WEEK_IN_MONTH)) {
return FALSE;
}
return TRUE;
}
void
GregorianCalendar::roll(UCalendarDateFields field, int32_t amount, UErrorCode& status)
{
if((amount == 0) || U_FAILURE(status)) {
return;
}
// J81 processing. (gregorian cutover)
UBool inCutoverMonth = FALSE;
int32_t cMonthLen=0; // 'c' for cutover; in days
int32_t cDayOfMonth=0; // no discontinuity: [0, cMonthLen)
double cMonthStart=0.0; // in ms
// Common code - see if we're in the cutover month of the cutover year
if(get(UCAL_EXTENDED_YEAR, status) == fGregorianCutoverYear) {
switch (field) {
case UCAL_DAY_OF_MONTH:
case UCAL_WEEK_OF_MONTH:
{
int32_t max = monthLength(internalGet(UCAL_MONTH));
UDate t = internalGetTime();
// We subtract 1 from the DAY_OF_MONTH to make it zero-based, and an
// additional 10 if we are after the cutover. Thus the monthStart
// value will be correct iff we actually are in the cutover month.
cDayOfMonth = internalGet(UCAL_DAY_OF_MONTH) - ((t >= fGregorianCutover) ? 10 : 0);
cMonthStart = t - ((cDayOfMonth - 1) * kOneDay);
// A month containing the cutover is 10 days shorter.
if ((cMonthStart < fGregorianCutover) &&
(cMonthStart + (cMonthLen=(max-10))*kOneDay >= fGregorianCutover)) {
inCutoverMonth = TRUE;
}
}
default:
;
}
}
switch (field) {
case UCAL_WEEK_OF_YEAR: {
// Unlike WEEK_OF_MONTH, WEEK_OF_YEAR never shifts the day of the
// week. Also, rolling the week of the year can have seemingly
// strange effects simply because the year of the week of year
// may be different from the calendar year. For example, the
// date Dec 28, 1997 is the first day of week 1 of 1998 (if
// weeks start on Sunday and the minimal days in first week is
// <= 3).
int32_t woy = get(UCAL_WEEK_OF_YEAR, status);
// Get the ISO year, which matches the week of year. This
// may be one year before or after the calendar year.
int32_t isoYear = get(UCAL_YEAR_WOY, status);
int32_t isoDoy = internalGet(UCAL_DAY_OF_YEAR);
if (internalGet(UCAL_MONTH) == UCAL_JANUARY) {
if (woy >= 52) {
isoDoy += handleGetYearLength(isoYear);
}
} else {
if (woy == 1) {
isoDoy -= handleGetYearLength(isoYear - 1);
}
}
woy += amount;
// Do fast checks to avoid unnecessary computation:
if (woy < 1 || woy > 52) {
// Determine the last week of the ISO year.
// We do this using the standard formula we use
// everywhere in this file. If we can see that the
// days at the end of the year are going to fall into
// week 1 of the next year, we drop the last week by
// subtracting 7 from the last day of the year.
int32_t lastDoy = handleGetYearLength(isoYear);
int32_t lastRelDow = (lastDoy - isoDoy + internalGet(UCAL_DAY_OF_WEEK) -
getFirstDayOfWeek()) % 7;
if (lastRelDow < 0) lastRelDow += 7;
if ((6 - lastRelDow) >= getMinimalDaysInFirstWeek()) lastDoy -= 7;
int32_t lastWoy = weekNumber(lastDoy, lastRelDow + 1);
woy = ((woy + lastWoy - 1) % lastWoy) + 1;
}
set(UCAL_WEEK_OF_YEAR, woy);
set(UCAL_YEAR_WOY,isoYear);
return;
}
case UCAL_DAY_OF_MONTH:
if( !inCutoverMonth ) {
Calendar::roll(field, amount, status);
return;
} else {
// [j81] 1582 special case for DOM
// The default computation works except when the current month
// contains the Gregorian cutover. We handle this special case
// here. [j81 - aliu]
double monthLen = cMonthLen * kOneDay;
double msIntoMonth = uprv_fmod(internalGetTime() - cMonthStart +
amount * kOneDay, monthLen);
if (msIntoMonth < 0) {
msIntoMonth += monthLen;
}
#if defined (U_DEBUG_CAL)
fprintf(stderr, "%s:%d: roll DOM %d -> %.0lf ms \n",
__FILE__, __LINE__,amount, cMonthLen, cMonthStart+msIntoMonth);
#endif
setTimeInMillis(cMonthStart + msIntoMonth, status);
return;
}
case UCAL_WEEK_OF_MONTH:
if( !inCutoverMonth ) {
Calendar::roll(field, amount, status);
return;
} else {
#if defined (U_DEBUG_CAL)
fprintf(stderr, "%s:%d: roll WOM %d ??????????????????? \n",
__FILE__, __LINE__,amount);
#endif
// NOTE: following copied from the old
// GregorianCalendar::roll( WEEK_OF_MONTH ) code
// This is tricky, because during the roll we may have to shift
// to a different day of the week. For example:
// s m t w r f s
// 1 2 3 4 5
// 6 7 8 9 10 11 12
// When rolling from the 6th or 7th back one week, we go to the
// 1st (assuming that the first partial week counts). The same
// thing happens at the end of the month.
// The other tricky thing is that we have to figure out whether
// the first partial week actually counts or not, based on the
// minimal first days in the week. And we have to use the
// correct first day of the week to delineate the week
// boundaries.
// Here's our algorithm. First, we find the real boundaries of
// the month. Then we discard the first partial week if it
// doesn't count in this locale. Then we fill in the ends with
// phantom days, so that the first partial week and the last
// partial week are full weeks. We then have a nice square
// block of weeks. We do the usual rolling within this block,
// as is done elsewhere in this method. If we wind up on one of
// the phantom days that we added, we recognize this and pin to
// the first or the last day of the month. Easy, eh?
// Another wrinkle: To fix jitterbug 81, we have to make all this
// work in the oddball month containing the Gregorian cutover.
// This month is 10 days shorter than usual, and also contains
// a discontinuity in the days; e.g., the default cutover month
// is Oct 1582, and goes from day of month 4 to day of month 15.
// Normalize the DAY_OF_WEEK so that 0 is the first day of the week
// in this locale. We have dow in 0..6.
int32_t dow = internalGet(UCAL_DAY_OF_WEEK) - getFirstDayOfWeek();
if (dow < 0)
dow += 7;
// Find the day of month, compensating for cutover discontinuity.
int32_t dom = cDayOfMonth;
// Find the day of the week (normalized for locale) for the first
// of the month.
int32_t fdm = (dow - dom + 1) % 7;
if (fdm < 0)
fdm += 7;
// Get the first day of the first full week of the month,
// including phantom days, if any. Figure out if the first week
// counts or not; if it counts, then fill in phantom days. If
// not, advance to the first real full week (skip the partial week).
int32_t start;
if ((7 - fdm) < getMinimalDaysInFirstWeek())
start = 8 - fdm; // Skip the first partial week
else
start = 1 - fdm; // This may be zero or negative
// Get the day of the week (normalized for locale) for the last
// day of the month.
int32_t monthLen = cMonthLen;
int32_t ldm = (monthLen - dom + dow) % 7;
// We know monthLen >= DAY_OF_MONTH so we skip the += 7 step here.
// Get the limit day for the blocked-off rectangular month; that
// is, the day which is one past the last day of the month,
// after the month has already been filled in with phantom days
// to fill out the last week. This day has a normalized DOW of 0.
int32_t limit = monthLen + 7 - ldm;
// Now roll between start and (limit - 1).
int32_t gap = limit - start;
int32_t newDom = (dom + amount*7 - start) % gap;
if (newDom < 0)
newDom += gap;
newDom += start;
// Finally, pin to the real start and end of the month.
if (newDom < 1)
newDom = 1;
if (newDom > monthLen)
newDom = monthLen;
// Set the DAY_OF_MONTH. We rely on the fact that this field
// takes precedence over everything else (since all other fields
// are also set at this point). If this fact changes (if the
// disambiguation algorithm changes) then we will have to unset
// the appropriate fields here so that DAY_OF_MONTH is attended
// to.
// If we are in the cutover month, manipulate ms directly. Don't do
// this in general because it doesn't work across DST boundaries
// (details, details). This takes care of the discontinuity.
setTimeInMillis(cMonthStart + (newDom-1)*kOneDay, status);
return;
}
default:
Calendar::roll(field, amount, status);
return;
}
}
inline bool Date::isEndOfMonth(const Date& d) {
return (d.dayOfMonth() == monthLength(d.month(), isLeap(d.year())));
}
inline Date Date::endOfMonth(const Date& d) {
Month m = d.month();
Year y = d.year();
return Date(monthLength(m, isLeap(y)), m, y);
}