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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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>
//This macro will be defined if the OS supports memory mapped files
#if defined (SYMBIAN_FILE_MAPPING_SUPPORTED) && !defined (WINS)
//simpler define to check in sources
#define QT_SYMBIAN_USE_NATIVE_FILEMAP
#include <f32filemap.h>
#endif
#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
#ifndef QT_SYMBIAN_USE_NATIVE_FILEMAP
mutable int fileHandleForMaps;
int getMapHandle();
#endif
#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;
#elif defined (QT_SYMBIAN_USE_NATIVE_FILEMAP)
QHash<uchar *, RFileMap> maps;
#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
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