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