151 lines
3.7 KiB
Objective-C
151 lines
3.7 KiB
Objective-C
/* NSDate+MAPIStore.m - this file is part of SOGo
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*
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* Copyright (C) 2010-2012 Inverse inc.
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*
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* Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#import <Foundation/NSCalendarDate.h>
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#import <Foundation/NSString.h>
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#import <Foundation/NSTimeZone.h>
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#import "NSDate+MAPIStore.h"
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#undef DEBUG
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#include <stdbool.h>
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#include <talloc.h>
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#include <util/time.h>
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#include <mapistore/mapistore.h>
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static NSCalendarDate *refDate = nil;
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@interface NSDate (MAPIStorePossibleMethods)
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- (NSTimeZone *) timeZone;
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@end
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@implementation NSDate (MAPIStoreDataTypes)
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static void
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_setupRefDate ()
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{
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refDate = [[NSCalendarDate alloc]
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initWithYear: 1601 month: 1 day: 1
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hour: 0 minute: 0 second: 0
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timeZone: [NSTimeZone timeZoneWithName: @"UTC"]];
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}
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+ (NSCalendarDate *) dateFromMinutesSince1601: (uint32_t) minutes
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{
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NSCalendarDate *result;
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if (!refDate)
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_setupRefDate ();
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result = [refDate dateByAddingYears: 0 months: 0 days: 0 hours: 0
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minutes: minutes seconds: 0];
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return result;
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}
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- (uint32_t) asMinutesSince1601
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{
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uint32_t minutes;
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NSInteger offset;
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if (!refDate)
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_setupRefDate ();
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if ([self respondsToSelector: @selector (timeZone)])
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offset = [[self timeZone] secondsFromGMT];
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else
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offset = 0;
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minutes = (uint32_t) (([self timeIntervalSinceDate: refDate] + offset) / 60);
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return minutes;
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}
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+ (id) dateFromFileTime: (const struct FILETIME *) timeValue
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{
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NSCalendarDate *result;
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uint64_t interval;
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if (!refDate)
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_setupRefDate ();
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interval = ((uint64_t) timeValue->dwHighDateTime << 32
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| timeValue->dwLowDateTime);
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result = [[NSCalendarDate alloc]
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initWithTimeInterval: (NSTimeInterval) interval / 10000000
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sinceDate: refDate];
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[result autorelease];
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return result;
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}
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- (struct FILETIME *) asFileTimeInMemCtx: (void *) memCtx
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{
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struct FILETIME *timeValue;
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uint64_t interval;
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if (!refDate)
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_setupRefDate ();
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interval = (((uint64_t) [self timeIntervalSinceDate: refDate]) * 10000000);
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timeValue = talloc_zero (memCtx, struct FILETIME);
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timeValue->dwLowDateTime = (uint32_t) (interval & 0xffffffff);
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timeValue->dwHighDateTime = (uint32_t) ((interval >> 32) & 0xffffffff);
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return timeValue;
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}
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- (BOOL) isNever /* occurs on 4500-12-31 */
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{
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NSCalendarDate *calDate;
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if ([self isKindOfClass: [NSCalendarDate class]])
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calDate = (NSCalendarDate *) self;
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else
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calDate = [NSCalendarDate dateWithTimeIntervalSince1970:
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[self timeIntervalSince1970]];
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return [calDate yearOfCommonEra] == 4500;
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}
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@end
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NSComparisonResult
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NSDateCompare (id date1, id date2, void *ctx)
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{
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NSTimeInterval secs1, secs2;
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NSComparisonResult result;
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secs1 = [date1 timeIntervalSince1970];
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secs2 = [date2 timeIntervalSince1970];
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if (secs1 == secs2)
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result = NSOrderedSame;
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else if (secs1 < secs2)
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result = NSOrderedAscending;
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else
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result = NSOrderedDescending;
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return result;
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}
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