RSPrivate RSTimeInterval __RSTimeIntervalUntilTSR(uint64_t tsr) {
RSDateGetTypeID();
uint64_t now = mach_absolute_time();
if (tsr >= now) {
return __RSTSRToTimeInterval(tsr - now);
} else {
return -__RSTSRToTimeInterval(now - tsr);
}
}
RSExport void RSCalendarSetGregorianStartDate(RSCalendarRef calendar, RSDateRef date) {
RS_OBJC_FUNCDISPATCHV(RSCalendarGetTypeID(), void, calendar, _setGregorianStartDate:date);
__RSGenericValidInstance(calendar, RSCalendarGetTypeID());
if (date) __RSGenericValidInstance(date, RSDateGetTypeID());
if (!calendar->_cal) __RSCalendarSetupCal(calendar);
if (!calendar->_cal) return;
if (!date) {
UErrorCode status = U_ZERO_ERROR;
UCalendar *cal = __RSCalendarCreateUCalendar(calendar->_identifier, calendar->_tz);
UDate udate = cal ? ucal_getGregorianChange(cal, &status) : 0;
if (cal && U_SUCCESS(status)) {
status = U_ZERO_ERROR;
if (calendar->_cal) ucal_setGregorianChange(calendar->_cal, udate, &status);
}
if (cal) ucal_close(cal);
} else {
RSAbsoluteTime at = RSDateGetAbsoluteTime(date);
UDate udate = (at + RSAbsoluteTimeIntervalSince1970) * 1000.0;
UErrorCode status = U_ZERO_ERROR;
if (calendar->_cal) ucal_setGregorianChange(calendar->_cal, udate, &status);
}
}
static RSDateRef __RSDateCreateInstance(RSAllocatorRef allocator, RSAbsoluteTime time)
{
RSDateRef date = (RSDateRef)__RSRuntimeCreateInstance(allocator, RSDateGetTypeID(), sizeof(struct __RSDate) - sizeof(struct __RSRuntimeBase));
((struct __RSDate*)date)->_time = time;
return date;
}
static void __RSDateAvailable(RSDateRef date)
{
if (date == nil) HALTWithError(RSInvalidArgumentException, "date is nil");
if (RSGetTypeID(date) != RSDateGetTypeID()) HALTWithError(RSInvalidArgumentException, "date is not kind of RSDate");
return;
}