CFCalendarRef CFCalendarCreateWithIdentifier(CFAllocatorRef allocator, CFStringRef identifier) {
if (allocator == NULL) allocator = __CFGetDefaultAllocator();
__CFGenericValidateType(allocator, CFAllocatorGetTypeID());
__CFGenericValidateType(identifier, CFStringGetTypeID());
// return NULL until Chinese calendar is available
if (identifier != kCFGregorianCalendar && identifier != kCFBuddhistCalendar && identifier != kCFJapaneseCalendar && identifier != kCFIslamicCalendar && identifier != kCFIslamicCivilCalendar && identifier != kCFHebrewCalendar) {
// if (identifier != kCFGregorianCalendar && identifier != kCFBuddhistCalendar && identifier != kCFJapaneseCalendar && identifier != kCFIslamicCalendar && identifier != kCFIslamicCivilCalendar && identifier != kCFHebrewCalendar && identifier != kCFChineseCalendar) {
if (CFEqual(kCFGregorianCalendar, identifier)) identifier = kCFGregorianCalendar;
else if (CFEqual(kCFBuddhistCalendar, identifier)) identifier = kCFBuddhistCalendar;
else if (CFEqual(kCFJapaneseCalendar, identifier)) identifier = kCFJapaneseCalendar;
else if (CFEqual(kCFIslamicCalendar, identifier)) identifier = kCFIslamicCalendar;
else if (CFEqual(kCFIslamicCivilCalendar, identifier)) identifier = kCFIslamicCivilCalendar;
else if (CFEqual(kCFHebrewCalendar, identifier)) identifier = kCFHebrewCalendar;
// else if (CFEqual(kCFChineseCalendar, identifier)) identifier = kCFChineseCalendar;
else return NULL;
}
struct __CFCalendar *calendar = NULL;
uint32_t size = sizeof(struct __CFCalendar) - sizeof(CFRuntimeBase);
calendar = (struct __CFCalendar *)_CFRuntimeCreateInstance(allocator, CFCalendarGetTypeID(), size, NULL);
if (NULL == calendar) {
return NULL;
}
calendar->_identifier = (CFStringRef)CFRetain(identifier);
calendar->_locale = NULL;
calendar->_localeID = CFLocaleGetIdentifier(CFLocaleGetSystem());
calendar->_tz = CFTimeZoneCopyDefault();
calendar->_cal = NULL;
return (CFCalendarRef)calendar;
}
CFLocaleRef CFLocaleCreate(CFAllocatorRef allocator, CFStringRef identifier) {
if (allocator == NULL) allocator = __CFGetDefaultAllocator();
__CFGenericValidateType(allocator, CFAllocatorGetTypeID());
__CFGenericValidateType(identifier, CFStringGetTypeID());
CFStringRef localeIdentifier = NULL;
if (identifier) {
localeIdentifier = CFLocaleCreateCanonicalLocaleIdentifierFromString(allocator, identifier);
}
if (NULL == localeIdentifier) return NULL;
CFStringRef old = localeIdentifier;
localeIdentifier = (CFStringRef)CFStringCreateCopy(allocator, localeIdentifier);
CFRelease(old);
__CFLocaleLockGlobal();
// Look for cases where we can return a cached instance.
// We only use cached objects if the allocator is the system
// default allocator.
if (!allocator) allocator = __CFGetDefaultAllocator();
Boolean canCache = (kCFAllocatorSystemDefault == allocator);
if (canCache && __CFLocaleCache) {
CFLocaleRef locale = (CFLocaleRef)CFDictionaryGetValue(__CFLocaleCache, localeIdentifier);
if (locale) {
CFRetain(locale);
__CFLocaleUnlockGlobal();
CFRelease(localeIdentifier);
return locale;
}
}
struct __CFLocale *locale = NULL;
uint32_t size = sizeof(struct __CFLocale) - sizeof(CFRuntimeBase);
locale = (struct __CFLocale *)_CFRuntimeCreateInstance(allocator, CFLocaleGetTypeID(), size, NULL);
if (NULL == locale) {
return NULL;
}
__CFLocaleSetType(locale, __kCFLocaleOrdinary);
locale->_identifier = localeIdentifier;
locale->_cache = CFDictionaryCreateMutable(allocator, 0, NULL, &kCFTypeDictionaryValueCallBacks);
locale->_overrides = NULL;
locale->_prefs = NULL;
CF_SPINLOCK_INIT_FOR_STRUCTS(locale->_lock);
if (canCache) {
if (NULL == __CFLocaleCache) {
__CFLocaleCache = CFDictionaryCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
}
CFDictionarySetValue(__CFLocaleCache, localeIdentifier, locale);
}
__CFLocaleUnlockGlobal();
return (CFLocaleRef)locale;
}
