qtimezoneprivate_tz.cpp File Reference

(bd01008bca729f2e935af739e2f8287633abde2b)

#include "qtimezone.h"
#include "qtimezoneprivate_p.h"
#include "private/qlocale_tools_p.h"
#include "private/qlocking_p.h"
#include <QtCore/QDataStream>
#include <QtCore/QDateTime>
#include <QtCore/QDirListing>
#include <QtCore/QFile>
#include <QtCore/QCache>
#include <QtCore/QMap>
#include <QtCore/QMutex>
#include <qdebug.h>
#include <qplatformdefs.h>
#include <algorithm>
#include <memory>
#include <errno.h>
#include <limits.h>
#include <sys/param.h>
#include <unistd.h>

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Classes
struct	QTzTimeZone
struct	QTzHeader
struct	QTzTransition
struct	QTzType
class	QTzTimeZoneCache

Macros
#define	TZ_MAGIC   "TZif"
#define	TZ_MAX_TIMES   1200
#define	TZ_MAX_TYPES   256
#define	TZ_MAX_CHARS   50
#define	TZ_MAX_LEAPS   50

Typedefs
typedef QHash< QByteArray, QTzTimeZone >	QTzTimeZoneHash

Functions
static bool	isTzFile (const QString &name)
static bool	openZoneInfo (const QString &name, QFile *file)
static QTzTimeZoneHash	loadTzTimeZones ()
	Q_GLOBAL_STATIC (const QTzTimeZoneHash, tzZones, loadTzTimeZones())
	Q_DECLARE_TYPEINFO (QTzTransition, Q_PRIMITIVE_TYPE)
	Q_DECLARE_TYPEINFO (QTzType, Q_PRIMITIVE_TYPE)
static QTzHeader	parseTzHeader (QDataStream &ds, bool *ok)
static QList< QTzTransition >	parseTzTransitions (QDataStream &ds, int tzh_timecnt, bool longTran)
static QList< QTzType >	parseTzTypes (QDataStream &ds, int tzh_typecnt)
static QMap< int, QByteArray >	parseTzAbbreviations (QDataStream &ds, int tzh_charcnt, const QList< QTzType > &types)
static void	parseTzLeapSeconds (QDataStream &ds, int tzh_leapcnt, bool longTran)
static QList< QTzType >	parseTzIndicators (QDataStream &ds, const QList< QTzType > &types, int tzh_ttisstdcnt, int tzh_ttisgmtcnt)
static QByteArray	parseTzPosixRule (QDataStream &ds)
static QDate	calculateDowDate (int year, int month, int dayOfWeek, int week)
static QDate	calculatePosixDate (const QByteArray &dateRule, int year)
static int	parsePosixTime (const char *begin, const char *end)
static int	parsePosixTransitionTime (const QByteArray &timeRule)
static int	parsePosixOffset (const char *begin, const char *end)
static bool	asciiIsLetter (char ch)
static auto	validatePosixRule (const QByteArray &posixRule, bool requireOffset=false)
static QList< QTimeZonePrivate::Data >	calculatePosixTransitions (const QByteArray &posixRule, int startYear, int endYear, qint64 lastTranMSecs)

Macro Definition Documentation

TZ_MAGIC

#define TZ_MAGIC   "TZif"

Definition at line 148 of file qtimezoneprivate_tz.cpp.

Referenced by isTzFile(), and parseTzHeader().

TZ_MAX_CHARS

#define TZ_MAX_CHARS   50

Definition at line 151 of file qtimezoneprivate_tz.cpp.

Referenced by parseTzHeader().

TZ_MAX_LEAPS

#define TZ_MAX_LEAPS   50

Definition at line 152 of file qtimezoneprivate_tz.cpp.

Referenced by parseTzHeader().

TZ_MAX_TIMES

#define TZ_MAX_TIMES   1200

Definition at line 149 of file qtimezoneprivate_tz.cpp.

Referenced by parseTzHeader().

TZ_MAX_TYPES

#define TZ_MAX_TYPES   256

Definition at line 150 of file qtimezoneprivate_tz.cpp.

Referenced by parseTzHeader().

Typedef Documentation

QTzTimeZoneHash

typedef QHash<QByteArray, QTzTimeZone> QTzTimeZoneHash

Definition at line 48 of file qtimezoneprivate_tz.cpp.

Function Documentation

asciiIsLetter()

static bool asciiIsLetter ( char ch )

inlinestatic

Definition at line 505 of file qtimezoneprivate_tz.cpp.

References ch.

calculateDowDate()

static QDate calculateDowDate ( int year, int month, int dayOfWeek, int week )

static

Definition at line 387 of file qtimezoneprivate_tz.cpp.

References QDate::addDays(), date, QDate::dayOfWeek(), and QDate::month().

Referenced by calculatePosixDate().

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calculatePosixDate()

static QDate calculatePosixDate ( const QByteArray & dateRule, int year )

static

Definition at line 406 of file qtimezoneprivate_tz.cpp.

References QDate::addDays(), QByteArrayView::at(), calculateDowDate(), QDate::isLeapYear(), ok, Q_ASSERT, and QByteArrayView::sliced().

Referenced by calculatePosixTransitions(), and validatePosixRule().

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calculatePosixTransitions()

static QList< QTimeZonePrivate::Data > calculatePosixTransitions ( const QByteArray & posixRule, int startYear, int endYear, qint64 lastTranMSecs )

static

Definition at line 640 of file qtimezoneprivate_tz.cpp.

References QByteArray::at(), begin(), calculatePosixDate(), QDateTime::First, QString::fromUtf8(), QDateTime::Last, parsePosixTransitionTime(), Q_ASSERT, qBound(), and QTimeZone::UTC.

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isTzFile()

static bool isTzFile ( const QString & name )

static

Definition at line 179 of file qtimezoneprivate_tz.cpp.

References file, QFile::open(), QIODevice::read(), QIODeviceBase::ReadOnly, and TZ_MAGIC.

Referenced by loadTzTimeZones().

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loadTzTimeZones()

static QTzTimeZoneHash loadTzTimeZones ( )

static

Definition at line 83 of file qtimezoneprivate_tz.cpp.

References QString::at(), QLocalePrivate::codeToTerritory(), cut(), QFile::encodeName(), QString::first(), QString::fromUtf8(), QString::indexOf(), info, QString::insert(), QString::isEmpty(), isTzFile(), line, openZoneInfo(), Q_ASSERT, Q_LIKELY, QDirListing::Recursive, QString::sliced(), QTzTimeZone::territory, text, and QString::trimmed().

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openZoneInfo()

static bool openZoneInfo ( const QString & name, QFile * file )

static

Definition at line 53 of file qtimezoneprivate_tz.cpp.

References file, QFile::open(), qEnvironmentVariable(), QIODeviceBase::ReadOnly, and QFile::setFileName().

Referenced by loadTzTimeZones().

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parsePosixOffset()

static int parsePosixOffset ( const char * begin, const char * end )

static

Definition at line 487 of file qtimezoneprivate_tz.cpp.

References begin(), and parsePosixTime().

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parsePosixTime()

static int parsePosixTime ( const char * begin, const char * end )

static

Definition at line 444 of file qtimezoneprivate_tz.cpp.

References begin(), and qstrntoll().

Referenced by parsePosixOffset(), parsePosixTransitionTime(), and validatePosixRule().

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parsePosixTransitionTime()

static int parsePosixTransitionTime ( const QByteArray & timeRule )

static

Definition at line 482 of file qtimezoneprivate_tz.cpp.

References parsePosixTime().

Referenced by calculatePosixTransitions().

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parseTzAbbreviations()

static QMap< int, QByteArray > parseTzAbbreviations ( QDataStream & ds, int tzh_charcnt, const QList< QTzType > & types )

static

Definition at line 286 of file qtimezoneprivate_tz.cpp.

References QByteArray::append(), ch, i, map, and QDataStream::status().

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parseTzHeader()

static QTzHeader parseTzHeader ( QDataStream & ds, bool * ok )

static

Definition at line 187 of file qtimezoneprivate_tz.cpp.

References ch, ok, QDataStream::readRawData(), QDataStream::status(), TZ_MAGIC, TZ_MAX_CHARS, TZ_MAX_LEAPS, TZ_MAX_TIMES, TZ_MAX_TYPES, QTzHeader::tzh_charcnt, QTzHeader::tzh_leapcnt, QTzHeader::tzh_magic, QTzHeader::tzh_reserved, QTzHeader::tzh_timecnt, QTzHeader::tzh_ttisgmtcnt, QTzHeader::tzh_ttisstdcnt, QTzHeader::tzh_typecnt, and QTzHeader::tzh_version.

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parseTzIndicators()

static QList< QTzType > parseTzIndicators ( QDataStream & ds, const QList< QTzType > & types, int tzh_ttisstdcnt, int tzh_ttisgmtcnt )

static

Definition at line 342 of file qtimezoneprivate_tz.cpp.

References i, and QDataStream::status().

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parseTzLeapSeconds()

static void parseTzLeapSeconds ( QDataStream & ds, int tzh_leapcnt, bool longTran )

static

Definition at line 315 of file qtimezoneprivate_tz.cpp.

References i, QDataStream::status(), and time.

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parseTzPosixRule()

static QByteArray parseTzPosixRule ( QDataStream & ds )

static

Definition at line 369 of file qtimezoneprivate_tz.cpp.

References ch, rule, and QDataStream::status().

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parseTzTransitions()

static QList< QTzTransition > parseTzTransitions ( QDataStream & ds, int tzh_timecnt, bool longTran )

static

Definition at line 231 of file qtimezoneprivate_tz.cpp.

References i, and QDataStream::status().

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parseTzTypes()

static QList< QTzType > parseTzTypes ( QDataStream & ds, int tzh_typecnt )

static

Definition at line 264 of file qtimezoneprivate_tz.cpp.

References i, and QDataStream::status().

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Q_DECLARE_TYPEINFO() [1/2]

Q_DECLARE_TYPEINFO	(	QTzTransition	,
		Q_PRIMITIVE_TYPE	)

Q_DECLARE_TYPEINFO() [2/2]

Q_DECLARE_TYPEINFO	(	QTzType	,
		Q_PRIMITIVE_TYPE	)

Q_GLOBAL_STATIC()

Q_GLOBAL_STATIC	(	const QTzTimeZoneHash	,
		tzZones	,
		loadTzTimeZones()	)

validatePosixRule()

static auto validatePosixRule ( const QByteArray & posixRule, bool requireOffset = false )

static

Definition at line 592 of file qtimezoneprivate_tz.cpp.

References QByteArray::at(), begin(), calculatePosixDate(), i, parsePosixTime(), and time.

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