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Diffstat (limited to 'src/corelib/io/qfile.h')
| -rw-r--r-- | src/corelib/io/qfile.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/corelib/io/qfile.h b/src/corelib/io/qfile.h new file mode 100644 index 0000000000..e4ca9cc7b4 --- /dev/null +++ b/src/corelib/io/qfile.h @@ -0,0 +1,204 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QFILE_H +#define QFILE_H + +#include <QtCore/qiodevice.h> +#include <QtCore/qstring.h> +#include <stdio.h> + +#ifdef open +#error qfile.h must be included before any header file that defines open +#endif + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Core) + +class QAbstractFileEngine; +class QFilePrivate; + +class Q_CORE_EXPORT QFile : public QIODevice +{ +#ifndef QT_NO_QOBJECT + Q_OBJECT +#endif + Q_DECLARE_PRIVATE(QFile) + +public: + + enum FileError { + NoError = 0, + ReadError = 1, + WriteError = 2, + FatalError = 3, + ResourceError = 4, + OpenError = 5, + AbortError = 6, + TimeOutError = 7, + UnspecifiedError = 8, + RemoveError = 9, + RenameError = 10, + PositionError = 11, + ResizeError = 12, + PermissionsError = 13, + CopyError = 14 +#ifdef QT3_SUPPORT + , ConnectError = 30 +#endif + }; + + enum Permission { + ReadOwner = 0x4000, WriteOwner = 0x2000, ExeOwner = 0x1000, + ReadUser = 0x0400, WriteUser = 0x0200, ExeUser = 0x0100, + ReadGroup = 0x0040, WriteGroup = 0x0020, ExeGroup = 0x0010, + ReadOther = 0x0004, WriteOther = 0x0002, ExeOther = 0x0001 + }; + Q_DECLARE_FLAGS(Permissions, Permission) + + QFile(); + QFile(const QString &name); +#ifndef QT_NO_QOBJECT + explicit QFile(QObject *parent); + QFile(const QString &name, QObject *parent); +#endif + ~QFile(); + + FileError error() const; + void unsetError(); + + QString fileName() const; + void setFileName(const QString &name); + + typedef QByteArray (*EncoderFn)(const QString &fileName); + typedef QString (*DecoderFn)(const QByteArray &localfileName); + static QByteArray encodeName(const QString &fileName); + static QString decodeName(const QByteArray &localFileName); + inline static QString decodeName(const char *localFileName) + { return decodeName(QByteArray(localFileName)); }; + static void setEncodingFunction(EncoderFn); + static void setDecodingFunction(DecoderFn); + + bool exists() const; + static bool exists(const QString &fileName); + + QString readLink() const; + static QString readLink(const QString &fileName); + inline QString symLinkTarget() const { return readLink(); } + inline static QString symLinkTarget(const QString &fileName) { return readLink(fileName); } + + bool remove(); + static bool remove(const QString &fileName); + + bool rename(const QString &newName); + static bool rename(const QString &oldName, const QString &newName); + + bool link(const QString &newName); + static bool link(const QString &oldname, const QString &newName); + + bool copy(const QString &newName); + static bool copy(const QString &fileName, const QString &newName); + + bool isSequential() const; + + bool open(OpenMode flags); + bool open(FILE *f, OpenMode flags); + bool open(int fd, OpenMode flags); + virtual void close(); + + qint64 size() const; + qint64 pos() const; + bool seek(qint64 offset); + bool atEnd() const; + bool flush(); + + bool resize(qint64 sz); + static bool resize(const QString &filename, qint64 sz); + + Permissions permissions() const; + static Permissions permissions(const QString &filename); + bool setPermissions(Permissions permissionSpec); + static bool setPermissions(const QString &filename, Permissions permissionSpec); + + int handle() const; + + enum MemoryMapFlags { + NoOptions = 0 + }; + + uchar *map(qint64 offset, qint64 size, MemoryMapFlags flags = NoOptions); + bool unmap(uchar *address); + + virtual QAbstractFileEngine *fileEngine() const; + +#ifdef QT3_SUPPORT + typedef Permission PermissionSpec; + inline QT3_SUPPORT QString name() const { return fileName(); } + inline QT3_SUPPORT void setName(const QString &aName) { setFileName(aName); } + inline QT3_SUPPORT bool open(OpenMode aFlags, FILE *f) { return open(f, aFlags); } + inline QT3_SUPPORT bool open(OpenMode aFlags, int fd) { return open(fd, aFlags); } +#endif + +protected: +#ifdef QT_NO_QOBJECT + QFile(QFilePrivate &dd); +#else + QFile(QFilePrivate &dd, QObject *parent = 0); +#endif + + qint64 readData(char *data, qint64 maxlen); + qint64 writeData(const char *data, qint64 len); + qint64 readLineData(char *data, qint64 maxlen); + +private: + Q_DISABLE_COPY(QFile) +}; + +Q_DECLARE_OPERATORS_FOR_FLAGS(QFile::Permissions) + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QFILE_H |