kde-workspace/ktimezoned/ktimezoned.h
2014-11-15 04:16:00 +02:00

111 lines
4.5 KiB
C++

/*
This file is part of the KDE libraries
Copyright (c) 2007,2009 David Jarvie <djarvie@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KTIMEZONED_H
#define KTIMEZONED_H
#include "ktimezonedbase.h"
#include <QString>
#include <QByteArray>
class QFile;
#include <kdedmodule.h>
#include <kdirwatch.h>
#include <ksystemtimezone.h>
class KTimeZoned : public KTimeZonedBase
{
Q_OBJECT
public:
KTimeZoned(QObject* parent, const QList<QVariant>&);
~KTimeZoned();
private Q_SLOTS:
void zonetab_Changed(const QString& path);
void localChanged(const QString& path);
private:
// How the local time zone is specified
enum LocalMethod
{
TypeMask = 0x30,
Link = 0x10, // specified by a symlink
File = 0x20, // specified by a normal file
Utc, // use UTC default: no local zone spec was found
EnvTz, // specified in TZ environment variable
TzName, // specified in tzname via tzset()
Localtime, // specified in /etc/localtime
Timezone, // specified in /etc/timezone
RcFile, // specified in /etc/rc.conf or /etc/rc.local
DefaultInit, // specified in /etc/default/init
EnvTzFile = EnvTz | File,
EnvTzLink = EnvTz | Link,
LocaltimeCopy = Localtime | File,
LocaltimeLink = Localtime | Link
};
// Type of zone.tab cache
enum CacheType
{
NoCache, // zone.tab is the real thing, not a cached version
Solaris // Solaris: compiled from files in /usr/share/lib/zoneinfo/src
};
typedef QMap<QString, QString> MD5Map; // zone name, checksum
/** reimp */
void init(bool restart);
bool findZoneTab(QFile& f);
void readZoneTab(QFile& f);
void findLocalZone();
bool checkTZ(const char *envZone);
bool checkLocaltimeLink();
bool checkLocaltimeFile();
bool checkTimezone();
bool checkRcFile();
bool checkDefaultInit();
void updateLocalZone();
bool matchZoneFile(const QString &path);
bool findKey(const QString &path, const QString &key);
bool setLocalZone(const QString &zoneName);
KTimeZone compareChecksum(const KTimeZone&, const QString &referenceMd5Sum, qlonglong size);
bool compareChecksum(MD5Map::ConstIterator, const QString &referenceMd5Sum, qlonglong size);
QString calcChecksum(const QString &zoneName, qlonglong size);
QString mZoneinfoDir; // path to zoneinfo directory
QString mZoneTab; // path to zone.tab file
QByteArray mSavedTZ; // last value of TZ if it's used to set local zone
KSystemTimeZoneSource *mSource;
KTimeZones mZones; // time zones collection
QString mLocalIdFile; // file containing pointer to local time zone definition
QString mLocalIdFile2; // file containing pointer 2 to local time zone definition
QString mLocalZoneDataFile; // zoneinfo file containing local time zone definition
QString mLocaltimeMd5Sum; // MD5 checksum of /etc/localtime
LocalMethod mLocalMethod; // how the local time zone is specified
KDirWatch *mZonetabWatch; // watch for zone.tab file changes
KDirWatch *mDirWatch; // watch for time zone definition file changes
MD5Map mMd5Sums; // MD5 checksums of zoneinfo files
CacheType mZoneTabCache; // type of cached simulated zone.tab
bool mHaveCountryCodes; // true if zone.tab contains any country codes
};
#endif