/*
* Copyright (c) 2008, 2009, 2010, 2011
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <stdint.h>
#include <limits.h>
#include <time.h>
#include <sys/time.h>
#import "OFDate.h"
#import "OFString.h"
#import "OFAutoreleasePool.h"
#ifdef OF_THREADS
# import "OFThread.h"
#endif
#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFOutOfRangeException.h"
#if (!defined(HAVE_GMTIME_R) || !defined(HAVE_LOCALTIME_R)) && \
defined(OF_THREADS)
static OFMutex *mutex;
#endif
#ifdef HAVE_GMTIME_R
# define GMTIME_RET(field) \
time_t seconds_ = (time_t)seconds; \
struct tm tm; \
\
if (seconds != seconds_) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
if (gmtime_r(&seconds_, &tm) == NULL) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
return tm.field;
# define LOCALTIME_RET(field) \
time_t seconds_ = (time_t)seconds; \
struct tm tm; \
\
if (seconds != seconds_) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
if (localtime_r(&seconds_, &tm) == NULL) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
return tm.field;
#else
# ifdef OF_THREADS
# define GMTIME_RET(field) \
time_t seconds_ = (time_t)seconds; \
struct tm *tm; \
\
if (seconds != seconds_) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
[mutex lock]; \
\
@try { \
if ((tm = gmtime(&seconds_)) == NULL) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
return tm->field; \
} @finally { \
[mutex unlock]; \
}
# define LOCALTIME_RET(field) \
time_t seconds_ = (time_t)seconds; \
struct tm *tm; \
\
if (seconds != seconds_) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
[mutex lock]; \
\
@try { \
if ((tm = localtime(&sec_)) == NULL) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
return tm->field; \
} @finally { \
[mutex unlock]; \
}
# else
# define GMTIME_RET(field) \
time_t seconds_ = (time_t)seconds; \
struct tm *tm; \
\
if (seconds != seconds_) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
if ((tm = gmtime(&seconds_)) == NULL) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
return tm->field;
# define LOCALTIME_RET(field) \
time_t seconds_ = (time_t)seconds; \
struct tm *tm; \
\
if (seconds != seconds_) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
if ((tm = localtime(&seconds_)) == NULL) \
@throw [OFOutOfRangeException newWithClass: isa]; \
\
return tm->field;
# endif
#endif
@implementation OFDate
#if (!defined(HAVE_GMTIME_R) || !defined(HAVE_LOCALTIME_R)) && \
defined(OF_THREADS)
+ (void)initialize
{
if (self == [OFDate class])
mutex = [[OFMutex alloc] init];
}
#endif
+ date
{
return [[[self alloc] init] autorelease];
}
+ dateWithTimeIntervalSince1970: (int64_t)seconds
{
return [[[self alloc]
initWithTimeIntervalSince1970: seconds] autorelease];
}
+ dateWithTimeIntervalSince1970: (int64_t)seconds
microseconds: (uint32_t)microseconds
{
return [[[self alloc]
initWithTimeIntervalSince1970: seconds
microseconds: microseconds] autorelease];
}
+ dateWithTimeIntervalSinceNow: (int64_t)seconds
{
return [[[self alloc]
initWithTimeIntervalSinceNow: seconds] autorelease];
}
+ dateWithTimeIntervalSinceNow: (int64_t)seconds
microseconds: (uint32_t)microseconds
{
return [[[self alloc]
initWithTimeIntervalSinceNow: seconds
microseconds: microseconds] autorelease];
}
+ distantFuture
{
if (sizeof(time_t) == sizeof(int64_t))
return [[[self alloc]
initWithTimeIntervalSince1970: INT64_MAX
microseconds: 999999] autorelease];
if (sizeof(time_t) == sizeof(int32_t))
return [[[self alloc]
initWithTimeIntervalSince1970: INT32_MAX
microseconds: 999999] autorelease];
/* Neither 64 nor 32 bit. But it's guaranteed to be at least an int */
return [[[self alloc]
initWithTimeIntervalSince1970: INT_MAX
microseconds: 999999] autorelease];
}
+ distantPast
{
/* We don't know if time_t is signed or unsigned. Use 0 to be safe */
return [[[self alloc] initWithTimeIntervalSince1970: 0] autorelease];
}
- init
{
struct timeval t;
if (gettimeofday(&t, NULL)) {
Class c = isa;
[self release];
@throw [OFInitializationFailedException newWithClass: c];
}
return [self initWithTimeIntervalSince1970: t.tv_sec
microseconds: (uint32_t)t.tv_usec];
}
- initWithTimeIntervalSince1970: (int64_t)seconds_
{
return [self initWithTimeIntervalSince1970: seconds_
microseconds: 0];
}
- initWithTimeIntervalSince1970: (int64_t)seconds_
microseconds: (uint32_t)microseconds_
{
self = [super init];
seconds = seconds_;
microseconds = microseconds_;
return self;
}
- initWithTimeIntervalSinceNow: (int64_t)seconds_
{
return [self initWithTimeIntervalSinceNow: seconds_
microseconds: 0];
}
- initWithTimeIntervalSinceNow: (int64_t)seconds_
microseconds: (uint32_t)microseconds_
{
self = [self init];
seconds += seconds_;
microseconds += microseconds_;
seconds += microseconds / 1000000;
microseconds %= 1000000;
return self;
}
- (BOOL)isEqual: (id)obj
{
OFDate *otherDate;
if (![obj isKindOfClass: [OFDate class]])
return NO;
otherDate = (OFDate*)obj;
if (otherDate->seconds != seconds ||
otherDate->microseconds != microseconds)
return NO;
return YES;
}
- copy
{
return [self retain];
}
- (of_comparison_result_t)compare: (id)obj
{
OFDate *otherDate;
if (![obj isKindOfClass: [OFDate class]])
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
otherDate = (OFDate*)obj;
if (seconds < otherDate->seconds)
return OF_ORDERED_ASCENDING;
if (seconds > otherDate->seconds)
return OF_ORDERED_DESCENDING;
if (microseconds < otherDate->microseconds)
return OF_ORDERED_ASCENDING;
if (microseconds > otherDate->microseconds)
return OF_ORDERED_DESCENDING;
return OF_ORDERED_SAME;
}
- (OFString*)description
{
return [self dateStringWithFormat: @"%Y-%m-%dT%H:%M:%SZ"];
}
- (uint32_t)microsecond
{
return microseconds;
}
- (uint8_t)second
{
GMTIME_RET(tm_sec)
}
- (uint8_t)minute
{
GMTIME_RET(tm_min)
}
- (uint8_t)hour
{
GMTIME_RET(tm_hour)
}
- (uint8_t)localHour
{
LOCALTIME_RET(tm_hour)
}
- (uint8_t)dayOfMonth
{
GMTIME_RET(tm_mday)
}
- (uint8_t)localDayOfMonth
{
LOCALTIME_RET(tm_mday)
}
- (uint8_t)monthOfYear
{
GMTIME_RET(tm_mon + 1)
}
- (uint8_t)localMonthOfYear
{
LOCALTIME_RET(tm_mon + 1)
}
- (uint16_t)year
{
GMTIME_RET(tm_year + 1900)
}
- (uint8_t)dayOfWeek
{
GMTIME_RET(tm_wday)
}
- (uint8_t)localDayOfWeek
{
LOCALTIME_RET(tm_wday)
}
- (uint16_t)dayOfYear
{
GMTIME_RET(tm_yday + 1)
}
- (uint16_t)localDayOfYear
{
LOCALTIME_RET(tm_yday + 1)
}
- (OFString*)dateStringWithFormat: (OFString*)fmt
{
OFString *ret;
time_t seconds_ = (time_t)seconds;
struct tm tm;
char *buf;
if (seconds != seconds_)
@throw [OFOutOfRangeException newWithClass: isa];
#ifdef HAVE_GMTIME_R
if (gmtime_r(&seconds_, &tm) == NULL)
@throw [OFOutOfRangeException newWithClass: isa];
#else
# ifdef OF_THREADS
[mutex lock];
@try {
# endif
struct tm *tmp;
if ((tmp = gmtime(&seconds_)) == NULL)
@throw [OFOutOfRangeException newWithClass: isa];
tm = *tmp;
# ifdef OF_THREADS
} @finally {
[mutex unlock];
}
# endif
#endif
buf = [self allocMemoryWithSize: of_pagesize];
@try {
if (!strftime(buf, of_pagesize, [fmt cString], &tm))
@throw [OFOutOfRangeException newWithClass: isa];
ret = [OFString stringWithCString: buf];
} @finally {
[self freeMemory: buf];
}
return ret;
}
- (OFString*)localDateStringWithFormat: (OFString*)fmt
{
OFString *ret;
time_t seconds_ = (time_t)seconds;
struct tm tm;
char *buf;
if (seconds != seconds_)
@throw [OFOutOfRangeException newWithClass: isa];
#ifdef HAVE_LOCALTIME_R
if (localtime_r(&seconds_, &tm) == NULL)
@throw [OFOutOfRangeException newWithClass: isa];
#else
# ifdef OF_THREADS
[mutex lock];
@try {
# endif
struct tm *tmp;
if ((tmp = localtime(&seconds_)) == NULL)
@throw [OFOutOfRangeException newWithClass: isa];
tm = *tmp;
# ifdef OF_THREADS
} @finally {
[mutex unlock];
}
# endif
#endif
buf = [self allocMemoryWithSize: of_pagesize];
@try {
if (!strftime(buf, of_pagesize, [fmt cString], &tm))
@throw [OFOutOfRangeException newWithClass: isa];
ret = [OFString stringWithCString: buf];
} @finally {
[self freeMemory: buf];
}
return ret;
}
- (OFDate*)earlierDate: (OFDate*)otherDate
{
if ([self compare: otherDate] == OF_ORDERED_DESCENDING)
return [[otherDate retain] autorelease];
return [[self retain] autorelease];
}
- (OFDate*)laterDate: (OFDate*)otherDate
{
if ([self compare: otherDate] == OF_ORDERED_ASCENDING)
return [[otherDate retain] autorelease];
return [[self retain] autorelease];
}
- (int64_t)timeIntervalSince1970
{
return seconds;
}
- (uint32_t)microsecondsOfTimeIntervalSince1970
{
return microseconds;
}
- (int64_t)timeIntervalSinceDate: (OFDate*)otherDate
{
int64_t seconds_ = seconds - otherDate->seconds;
int32_t microseconds_ = (int32_t)microseconds - otherDate->microseconds;
seconds_ += microseconds_ / 1000000;
microseconds_ %= 1000000;
while (microseconds_ < 0) {
microseconds_ += 1000000;
seconds_--;
}
return seconds_;
}
- (uint32_t)microsecondsOfTimeIntervalSinceDate: (OFDate*)otherDate
{
int32_t microseconds_ = (int32_t)microseconds - otherDate->microseconds;
microseconds_ %= 1000000;
while (microseconds_ < 0)
microseconds_ += 1000000;
return microseconds_;
}
- (OFDate*)dateByAddingTimeInterval: (int64_t)sec_
{
return [self dateByAddingTimeInterval: sec_
withMicroseconds: 0];
}
- (OFDate*)dateByAddingTimeInterval: (int64_t)seconds_
withMicroseconds: (uint32_t)microseconds_
{
seconds_ += seconds;
microseconds_ += microseconds;
seconds_ += microseconds_ / 1000000;
microseconds_ %= 1000000;
return [OFDate dateWithTimeIntervalSince1970: seconds_
microseconds: microseconds_];
}
@end