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Diffstat (limited to 'src/corelib/io/qfsfileengine_p.h')
| -rw-r--r-- | src/corelib/io/qfsfileengine_p.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/corelib/io/qfsfileengine_p.h b/src/corelib/io/qfsfileengine_p.h new file mode 100644 index 0000000000..253f461fd1 --- /dev/null +++ b/src/corelib/io/qfsfileengine_p.h @@ -0,0 +1,202 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QFSFILEENGINE_P_H +#define QFSFILEENGINE_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qplatformdefs.h" +#include "QtCore/qfsfileengine.h" +#include "private/qabstractfileengine_p.h" +#include <QtCore/private/qfilesystementry_p.h> +#include <QtCore/private/qfilesystemmetadata_p.h> +#include <qhash.h> + +#ifdef Q_OS_SYMBIAN +#include <f32file.h> +#endif + +#ifndef QT_NO_FSFILEENGINE + +QT_BEGIN_NAMESPACE + +#if defined(Q_OS_WINCE_STD) && _WIN32_WCE < 0x600 +#define Q_USE_DEPRECATED_MAP_API 1 +#endif + +class Q_AUTOTEST_EXPORT QFSFileEnginePrivate : public QAbstractFileEnginePrivate +{ + Q_DECLARE_PUBLIC(QFSFileEngine) + +public: +#ifdef Q_WS_WIN + static QString longFileName(const QString &path); +#endif + + QFileSystemEntry fileEntry; + QIODevice::OpenMode openMode; + + bool nativeOpen(QIODevice::OpenMode openMode); + bool openFh(QIODevice::OpenMode flags, FILE *fh); + bool openFd(QIODevice::OpenMode flags, int fd); + bool nativeClose(); + bool closeFdFh(); + bool nativeFlush(); + bool flushFh(); + qint64 nativeSize() const; +#ifndef Q_OS_WIN + qint64 sizeFdFh() const; +#endif + qint64 nativePos() const; + qint64 posFdFh() const; + bool nativeSeek(qint64); + bool seekFdFh(qint64); + qint64 nativeRead(char *data, qint64 maxlen); + qint64 readFdFh(char *data, qint64 maxlen); + qint64 nativeReadLine(char *data, qint64 maxlen); + qint64 readLineFdFh(char *data, qint64 maxlen); + qint64 nativeWrite(const char *data, qint64 len); + qint64 writeFdFh(const char *data, qint64 len); + int nativeHandle() const; + bool nativeIsSequential() const; +#ifndef Q_OS_WIN + bool isSequentialFdFh() const; +#endif + + uchar *map(qint64 offset, qint64 size, QFile::MemoryMapFlags flags); + bool unmap(uchar *ptr); + + mutable QFileSystemMetaData metaData; + + FILE *fh; +#ifdef Q_OS_SYMBIAN +#ifdef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API + RFile64 symbianFile; + TInt64 symbianFilePos; +#else + RFile symbianFile; + + /** + * The cursor position in the underlying file. This differs + * from devicePos because the latter is updated on calls to + * writeData, even if no data was physically transferred to + * the file, but instead stored in the write buffer. + * + * iFilePos is updated on calls to RFile::Read and + * RFile::Write. It is also updated on calls to seek() but + * RFile::Seek is not called when that happens because + * Symbian supports positioned reads and writes, saving a file + * server call, and because Symbian does not support seeking + * past the end of a file. + */ + TInt symbianFilePos; +#endif + mutable int fileHandleForMaps; + int getMapHandle(); +#endif + +#ifdef Q_WS_WIN + HANDLE fileHandle; + HANDLE mapHandle; + QHash<uchar *, DWORD /* offset % AllocationGranularity */> maps; + +#ifndef Q_OS_WINCE + mutable int cachedFd; +#endif + + mutable DWORD fileAttrib; +#else + QHash<uchar *, QPair<int /*offset % PageSize*/, size_t /*length + offset % PageSize*/> > maps; +#endif + int fd; + + enum LastIOCommand + { + IOFlushCommand, + IOReadCommand, + IOWriteCommand + }; + LastIOCommand lastIOCommand; + bool lastFlushFailed; + bool closeFileHandle; + + mutable uint is_sequential : 2; + mutable uint could_stat : 1; + mutable uint tried_stat : 1; +#if !defined(Q_OS_WINCE) + mutable uint need_lstat : 1; + mutable uint is_link : 1; +#endif + +#if defined(Q_OS_WIN) + bool doStat(QFileSystemMetaData::MetaDataFlags flags) const; +#else + bool doStat(QFileSystemMetaData::MetaDataFlags flags = QFileSystemMetaData::PosixStatFlags) const; +#endif + bool isSymlink() const; + +#if defined(Q_OS_WIN32) + int sysOpen(const QString &, int flags); +#endif + +protected: + QFSFileEnginePrivate(); + + void init(); + + QAbstractFileEngine::FileFlags getPermissions(QAbstractFileEngine::FileFlags type) const; +}; + +QT_END_NAMESPACE + +#endif // QT_NO_FSFILEENGINE + +#endif // QFSFILEENGINE_P_H |