bool check_gregorian_dates ()
{
Boolean status;
CFGregorianDate gregDate;
CFAbsoluteTime absTime;
long weekOfYear, dayOfWeek;
CFShow(CFSTR("Checking Gregorian date functions"));
// Construct a Gregorian date.
gregDate.year = 1999;
gregDate.month = 11;
gregDate.day = 23;
gregDate.hour = 17;
gregDate.minute = 33;
gregDate.second = 22.7;
// Check the validity of the date.
status = CFGregorianDateIsValid(gregDate, kCFGregorianAllUnits);
printf("Is my Gregorian date valid? %d\n", status);
// Convert the Gregorian date to absolute time.
absTime = CFGregorianDateGetAbsoluteTime(gregDate, NULL);
printf("The Absolute Time from a Gregorian date is: %f\n", absTime);
CFShow(CFSTR("This corresponds to the following:"));
weekOfYear = CFAbsoluteTimeGetWeekOfYear (absTime, NULL);
dayOfWeek = CFAbsoluteTimeGetDayOfWeek (absTime, NULL);
printf("Week of the year for %d-%d-%d is %ld\n", gregDate.month, gregDate.day, gregDate.year, weekOfYear);
printf("Day of the week for %d-%d-%d is %ld\n", gregDate.month, gregDate.day, gregDate.year, dayOfWeek);
printf("\n");
return true;
}
/*
* Returns a copy of repeat event after changing the repeat date
* into next event date.
*
* Caller is responsible for releasing the copy after use.
*/
__private_extern__ CFDictionaryRef
copyNextRepeatingEvent(CFStringRef type)
{
CFDictionaryRef repeatDict = NULL;
CFStringRef repeatDictType = NULL;
CFMutableDictionaryRef repeatDictCopy = NULL;
CFGregorianDate greg;
CFTimeZoneRef tizzy;
CFAbsoluteTime ev_time;
CFDateRef ev_date;
int days;
int minutes_scheduled;
int cf_day_of_week;
/*
* 'WakeOrPowerOn' repeat events are returned when caller asks
* for 'Wake' events or 'PowerOn' events.
* Don't bother to return anything if caller is looking specifically for
* WakeOrPowerOn type repeat events.
*/
if( CFEqual(type, CFSTR(kIOPMAutoSleep))
|| CFEqual(type, CFSTR(kIOPMAutoShutdown)) ||
CFEqual(type, CFSTR(kIOPMAutoRestart)) )
{
repeatDict = repeatingPowerOff;
}
else if (
CFEqual(type, CFSTR(kIOPMAutoPowerOn)) ||
CFEqual(type, CFSTR(kIOPMAutoWake)) )
{
repeatDict = repeatingPowerOn;
}
else
return NULL;
repeatDictType = getRepeatingDictionaryType(repeatDict);
if (CFEqual(type, repeatDictType) ||
( (CFEqual(repeatDictType, CFSTR(kIOPMAutoWakeOrPowerOn))) &&
(CFEqual(type, CFSTR(kIOPMAutoPowerOn)) || CFEqual(type, CFSTR(kIOPMAutoWake)))
)
)
{
repeatDictCopy = CFDictionaryCreateMutableCopy(0,0,repeatDict);
tizzy = CFTimeZoneCopySystem();
// Massage the scheduled time into today's date
cf_day_of_week = CFAbsoluteTimeGetDayOfWeek(
CFAbsoluteTimeGetCurrent(), tizzy);
days = daysUntil(repeatDict, cf_day_of_week);
greg = CFAbsoluteTimeGetGregorianDate(
CFAbsoluteTimeGetCurrent() + days*(60*60*24),
tizzy);
minutes_scheduled = getRepeatingDictionaryMinutes(repeatDict);
greg.hour = minutes_scheduled/60;
greg.minute = minutes_scheduled%60;
greg.second = 0.0;
ev_time = CFGregorianDateGetAbsoluteTime(greg, tizzy);
ev_date = CFDateCreate(kCFAllocatorDefault, ev_time);
CFDictionarySetValue(repeatDictCopy, CFSTR(kIOPMPowerEventTimeKey),
ev_date);
/* Set 'AppNameKey' to 'Repeating' */
CFDictionarySetValue(repeatDictCopy, CFSTR(kIOPMPowerEventAppNameKey),
CFSTR(kIOPMRepeatingAppName));
CFRelease(ev_date);
CFRelease(tizzy);
}
return repeatDictCopy;
}
