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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /src/corelib/io/qfsfileengine_p.h
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/****************************************************************************
+**
+** 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