CF-476.10.tar.gz

[apple/cf.git] / CFDate.h

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+/*
+ * Copyright (c) 2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*     CFDate.h
+       Copyright (c) 1998-2007, Apple Inc. All rights reserved.
+*/
+
+#if !defined(__COREFOUNDATION_CFDATE__)
+#define __COREFOUNDATION_CFDATE__ 1
+
+#include <CoreFoundation/CFBase.h>
+
+CF_EXTERN_C_BEGIN
+
+typedef double CFTimeInterval;
+typedef CFTimeInterval CFAbsoluteTime;
+/* absolute time is the time interval since the reference date */
+/* the reference date (epoch) is 00:00:00 1 January 2001. */
+
+CF_EXPORT
+CFAbsoluteTime CFAbsoluteTimeGetCurrent(void);
+
+CF_EXPORT
+const CFTimeInterval kCFAbsoluteTimeIntervalSince1970;
+CF_EXPORT
+const CFTimeInterval kCFAbsoluteTimeIntervalSince1904;
+
+typedef const struct __CFDate * CFDateRef;
+
+CF_EXPORT
+CFTypeID CFDateGetTypeID(void);
+
+CF_EXPORT
+CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
+
+CF_EXPORT
+CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
+
+CF_EXPORT
+CFTimeInterval CFDateGetTimeIntervalSinceDate(CFDateRef theDate, CFDateRef otherDate);
+
+CF_EXPORT
+CFComparisonResult CFDateCompare(CFDateRef theDate, CFDateRef otherDate, void *context);
+
+typedef const struct __CFTimeZone * CFTimeZoneRef;
+
+typedef struct {
+    SInt32 year;
+    SInt8 month;
+    SInt8 day;
+    SInt8 hour;
+    SInt8 minute;
+    double second;
+} CFGregorianDate;
+
+typedef struct {
+    SInt32 years;
+    SInt32 months;
+    SInt32 days;
+    SInt32 hours;
+    SInt32 minutes;
+    double seconds;
+} CFGregorianUnits;
+
+enum {
+    kCFGregorianUnitsYears = (1 << 0),
+    kCFGregorianUnitsMonths = (1 << 1),
+    kCFGregorianUnitsDays = (1 << 2),
+    kCFGregorianUnitsHours = (1 << 3),
+    kCFGregorianUnitsMinutes = (1 << 4),
+    kCFGregorianUnitsSeconds = (1 << 5),
+    kCFGregorianAllUnits = 0x00FFFFFF
+};
+typedef CFOptionFlags CFGregorianUnitFlags;
+
+CF_EXPORT
+Boolean CFGregorianDateIsValid(CFGregorianDate gdate, CFOptionFlags unitFlags);
+
+CF_EXPORT
+CFAbsoluteTime CFGregorianDateGetAbsoluteTime(CFGregorianDate gdate, CFTimeZoneRef tz);
+
+CF_EXPORT
+CFGregorianDate CFAbsoluteTimeGetGregorianDate(CFAbsoluteTime at, CFTimeZoneRef tz);
+
+CF_EXPORT
+CFAbsoluteTime CFAbsoluteTimeAddGregorianUnits(CFAbsoluteTime at, CFTimeZoneRef tz, CFGregorianUnits units);
+
+CF_EXPORT
+CFGregorianUnits CFAbsoluteTimeGetDifferenceAsGregorianUnits(CFAbsoluteTime at1, CFAbsoluteTime at2, CFTimeZoneRef tz, CFOptionFlags unitFlags);
+
+CF_EXPORT
+SInt32 CFAbsoluteTimeGetDayOfWeek(CFAbsoluteTime at, CFTimeZoneRef tz);
+
+CF_EXPORT
+SInt32 CFAbsoluteTimeGetDayOfYear(CFAbsoluteTime at, CFTimeZoneRef tz);
+
+CF_EXPORT
+SInt32 CFAbsoluteTimeGetWeekOfYear(CFAbsoluteTime at, CFTimeZoneRef tz);
+
+CF_EXTERN_C_END
+
+#endif /* ! __COREFOUNDATION_CFDATE__ */
+