Artifact d90c31fbc5671b13f4130c10e86501488373dfabd5ed18e90cf2a9a3560d4afe:
- File
src/OFDate.m
— part of check-in
[3d16a30f41]
at
2013-06-22 12:12:36
on branch trunk
— Rework exceptions.
This mostly removes the argument for the class in which the exception
occurred. As backtraces were recently added for all platforms, the
passed class does not give any extra information on where the exception
occurred anymore.This also removes a few other arguments which were not too helpful. In
the past, the idea was to pass as many arguments as possible so that it
is easier to find the origin of the exception. However, as backtraces
are a much better way to find the origin, those are not useful anymore
and just make the exception more cumbersome to use. The rule is now to
only pass arguments that might help in recovering from the exception or
provide information that is otherwise not easily accessible. (user: js, size: 12626) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 * 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" #define _GNU_SOURCE #include <stdint.h> #include <limits.h> #include <time.h> #include <math.h> #include <float.h> #include <sys/time.h> #import "OFDate.h" #import "OFString.h" #import "OFDictionary.h" #import "OFXMLElement.h" #ifdef OF_HAVE_THREADS # import "OFMutex.h" #endif #import "OFSystemInfo.h" #import "OFInitializationFailedException.h" #import "OFInvalidArgumentException.h" #import "OFInvalidFormatException.h" #import "OFOutOfRangeException.h" #import "autorelease.h" #import "macros.h" #import "of_strptime.h" #if (!defined(HAVE_GMTIME_R) || !defined(HAVE_LOCALTIME_R)) && \ defined(OF_HAVE_THREADS) static OFMutex *mutex; #endif #ifdef HAVE_GMTIME_R # define GMTIME_RET(field) \ time_t seconds = (time_t)_seconds; \ struct tm tm; \ \ if (seconds != floor(_seconds)) \ @throw [OFOutOfRangeException exception]; \ \ if (gmtime_r(&seconds, &tm) == NULL) \ @throw [OFOutOfRangeException exception]; \ \ return tm.field; # define LOCALTIME_RET(field) \ time_t seconds = (time_t)_seconds; \ struct tm tm; \ \ if (seconds != floor(_seconds)) \ @throw [OFOutOfRangeException exception]; \ \ if (localtime_r(&seconds, &tm) == NULL) \ @throw [OFOutOfRangeException exception]; \ \ return tm.field; #else # ifdef OF_HAVE_THREADS # define GMTIME_RET(field) \ time_t seconds = (time_t)_seconds; \ struct tm *tm; \ \ if (seconds != floor(_seconds)) \ @throw [OFOutOfRangeException exception]; \ \ [mutex lock]; \ \ @try { \ if ((tm = gmtime(&seconds)) == NULL) \ @throw [OFOutOfRangeException exception]; \ \ return tm->field; \ } @finally { \ [mutex unlock]; \ } # define LOCALTIME_RET(field) \ time_t seconds = (time_t)_seconds; \ struct tm *tm; \ \ if (seconds != floor(_seconds)) \ @throw [OFOutOfRangeException exception]; \ \ [mutex lock]; \ \ @try { \ if ((tm = localtime(&seconds)) == NULL) \ @throw [OFOutOfRangeException exception]; \ \ return tm->field; \ } @finally { \ [mutex unlock]; \ } # else # define GMTIME_RET(field) \ time_t seconds = (time_t)_seconds; \ struct tm *tm; \ \ if (seconds != floor(_seconds)) \ @throw [OFOutOfRangeException exception]; \ \ if ((tm = gmtime(&seconds)) == NULL) \ @throw [OFOutOfRangeException exception]; \ \ return tm->field; # define LOCALTIME_RET(field) \ time_t seconds = (time_t)_seconds; \ struct tm *tm; \ \ if (seconds != floor(_seconds)) \ @throw [OFOutOfRangeException exception]; \ \ if ((tm = localtime(&seconds)) == NULL) \ @throw [OFOutOfRangeException exception]; \ \ return tm->field; # endif #endif static int month_to_day_of_year[12] = { 0, 31, 31 + 28, 31 + 28 + 31, 31 + 28 + 31 + 30, 31 + 28 + 31 + 30 + 31, 31 + 28 + 31 + 30 + 31 + 30, 31 + 28 + 31 + 30 + 31 + 30 + 31, 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31, 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30, 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30, }; @implementation OFDate #if (!defined(HAVE_GMTIME_R) || !defined(HAVE_LOCALTIME_R)) && \ defined(OF_HAVE_THREADS) + (void)initialize { if (self == [OFDate class]) mutex = [[OFMutex alloc] init]; } #endif + (instancetype)date { return [[[self alloc] init] autorelease]; } + (instancetype)dateWithTimeIntervalSince1970: (double)seconds { return [[[self alloc] initWithTimeIntervalSince1970: seconds] autorelease]; } + (instancetype)dateWithTimeIntervalSinceNow: (double)seconds { return [[[self alloc] initWithTimeIntervalSinceNow: seconds] autorelease]; } + (instancetype)dateWithDateString: (OFString*)string format: (OFString*)format { return [[[self alloc] initWithDateString: string format: format] autorelease]; } + (instancetype)dateWithLocalDateString: (OFString*)string format: (OFString*)format { return [[[self alloc] initWithLocalDateString: string format: format] autorelease]; } + (instancetype)distantFuture { return [[[self alloc] initWithTimeIntervalSince1970: DBL_MAX] autorelease]; } + (instancetype)distantPast { return [[[self alloc] initWithTimeIntervalSince1970: DBL_MIN] autorelease]; } - init { struct timeval t; self = [super init]; OF_ENSURE(gettimeofday(&t, NULL) == 0); _seconds = t.tv_sec; _seconds += (double)t.tv_usec / 1000000; return self; } - initWithTimeIntervalSince1970: (double)seconds { self = [super init]; _seconds = seconds; return self; } - initWithTimeIntervalSinceNow: (double)seconds { self = [self init]; _seconds += seconds; return self; } - initWithDateString: (OFString*)string format: (OFString*)format { self = [super init]; @try { struct tm tm = {}; tm.tm_isdst = -1; if (of_strptime([string UTF8String], [format UTF8String], &tm) == NULL) @throw [OFInvalidFormatException exception]; /* Years */ _seconds = (int64_t)(tm.tm_year - 70) * 31536000; /* Days of leap years, excluding the year to look at */ _seconds += (((tm.tm_year + 1899) / 4) - 492) * 86400; _seconds -= (((tm.tm_year + 1899) / 100) - 19) * 86400; _seconds += (((tm.tm_year + 1899) / 400) - 4) * 86400; /* Leap day */ if (tm.tm_mon >= 2 && (((tm.tm_year + 1900) % 4 == 0 && (tm.tm_year + 1900) % 100 != 0) || (tm.tm_year + 1900) % 400 == 0)) _seconds += 86400; /* Months */ if (tm.tm_mon < 0 || tm.tm_mon > 12) @throw [OFInvalidFormatException exception]; _seconds += month_to_day_of_year[tm.tm_mon] * 86400; /* Days */ _seconds += (tm.tm_mday - 1) * 86400; /* Hours */ _seconds += tm.tm_hour * 3600; /* Minutes */ _seconds += tm.tm_min * 60; /* Seconds */ _seconds += tm.tm_sec; } @catch (id e) { [self release]; @throw e; } return self; } - initWithLocalDateString: (OFString*)string format: (OFString*)format { self = [super init]; @try { struct tm tm = {}; tm.tm_isdst = -1; if (of_strptime([string UTF8String], [format UTF8String], &tm) == NULL) @throw [OFInvalidFormatException exception]; if ((_seconds = mktime(&tm)) == -1) @throw [OFInvalidFormatException exception]; } @catch (id e) { [self release]; @throw e; } return self; } - initWithSerialization: (OFXMLElement*)element { self = [super init]; @try { void *pool = objc_autoreleasePoolPush(); union { double d; uint64_t u; } d; if (![[element name] isEqual: [self className]] || ![[element namespace] isEqual: OF_SERIALIZATION_NS]) @throw [OFInvalidArgumentException exception]; d.u = (uint64_t)[element hexadecimalValue]; _seconds = d.d; objc_autoreleasePoolPop(pool); } @catch (id e) { [self release]; @throw e; } return self; } - (bool)isEqual: (id)object { OFDate *otherDate; if (![object isKindOfClass: [OFDate class]]) return false; otherDate = object; if (otherDate->_seconds != _seconds) return false; return true; } - (uint32_t)hash { uint32_t hash; union { double d; uint8_t b[sizeof(double)]; } d; uint_fast8_t i; d.d = OF_BSWAP_DOUBLE_IF_BE(_seconds); OF_HASH_INIT(hash); for (i = 0; i < sizeof(double); i++) OF_HASH_ADD(hash, d.b[i]); OF_HASH_FINALIZE(hash); return hash; } - copy { return [self retain]; } - (of_comparison_result_t)compare: (id <OFComparing>)object { OFDate *otherDate; if (![object isKindOfClass: [OFDate class]]) @throw [OFInvalidArgumentException exception]; otherDate = (OFDate*)object; if (_seconds < otherDate->_seconds) return OF_ORDERED_ASCENDING; if (_seconds > otherDate->_seconds) return OF_ORDERED_DESCENDING; return OF_ORDERED_SAME; } - (OFString*)description { return [self dateStringWithFormat: @"%Y-%m-%dT%H:%M:%SZ"]; } - (OFXMLElement*)XMLElementBySerializing { void *pool = objc_autoreleasePoolPush(); OFXMLElement *element; union { double d; uint64_t u; } d; element = [OFXMLElement elementWithName: [self className] namespace: OF_SERIALIZATION_NS]; d.d = _seconds; [element setStringValue: [OFString stringWithFormat: @"%016" PRIx64, d.u]]; [element retain]; objc_autoreleasePoolPop(pool); return [element autorelease]; } - (uint32_t)microsecond { return (uint32_t)rint((_seconds - floor(_seconds)) * 1000000); } - (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) } - (uint16_t)localYear { LOCALTIME_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: (OFConstantString*)format { OFString *ret; time_t seconds = (time_t)_seconds; struct tm tm; size_t pageSize; char *buffer; if (seconds != floor(_seconds)) @throw [OFOutOfRangeException exception]; #ifdef HAVE_GMTIME_R if (gmtime_r(&seconds, &tm) == NULL) @throw [OFOutOfRangeException exception]; #else # ifdef OF_HAVE_THREADS [mutex lock]; @try { # endif struct tm *tmp; if ((tmp = gmtime(&seconds)) == NULL) @throw [OFOutOfRangeException exception]; tm = *tmp; # ifdef OF_HAVE_THREADS } @finally { [mutex unlock]; } # endif #endif pageSize = [OFSystemInfo pageSize]; buffer = [self allocMemoryWithSize: pageSize]; @try { if (!strftime(buffer, pageSize, [format UTF8String], &tm)) @throw [OFOutOfRangeException exception]; ret = [OFString stringWithUTF8String: buffer]; } @finally { [self freeMemory: buffer]; } return ret; } - (OFString*)localDateStringWithFormat: (OFConstantString*)format { OFString *ret; time_t seconds = (time_t)_seconds; struct tm tm; size_t pageSize; char *buffer; if (seconds != floor(_seconds)) @throw [OFOutOfRangeException exception]; #ifdef HAVE_LOCALTIME_R if (localtime_r(&seconds, &tm) == NULL) @throw [OFOutOfRangeException exception]; #else # ifdef OF_HAVE_THREADS [mutex lock]; @try { # endif struct tm *tmp; if ((tmp = localtime(&seconds)) == NULL) @throw [OFOutOfRangeException exception]; tm = *tmp; # ifdef OF_HAVE_THREADS } @finally { [mutex unlock]; } # endif #endif pageSize = [OFSystemInfo pageSize]; buffer = [self allocMemoryWithSize: pageSize]; @try { if (!strftime(buffer, pageSize, [format UTF8String], &tm)) @throw [OFOutOfRangeException exception]; ret = [OFString stringWithUTF8String: buffer]; } @finally { [self freeMemory: buffer]; } return ret; } - (OFDate*)earlierDate: (OFDate*)otherDate { if (otherDate == nil) return [[self retain] autorelease]; if ([self compare: otherDate] == OF_ORDERED_DESCENDING) return [[otherDate retain] autorelease]; return [[self retain] autorelease]; } - (OFDate*)laterDate: (OFDate*)otherDate { if (otherDate == nil) return [[self retain] autorelease]; if ([self compare: otherDate] == OF_ORDERED_ASCENDING) return [[otherDate retain] autorelease]; return [[self retain] autorelease]; } - (double)timeIntervalSince1970 { return _seconds; } - (double)timeIntervalSinceDate: (OFDate*)otherDate { return _seconds - otherDate->_seconds; } - (double)timeIntervalSinceNow { struct timeval t; double seconds; OF_ENSURE(!gettimeofday(&t, NULL)); seconds = t.tv_sec; seconds += (double)t.tv_usec / 1000000; return _seconds - seconds; } - (OFDate*)dateByAddingTimeInterval: (double)seconds { return [OFDate dateWithTimeIntervalSince1970: _seconds + seconds]; } @end