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diff --git a/src/corelib/io/qfileinfo_p.h b/src/corelib/io/qfileinfo_p.h
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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 QFILEINFO_P_H
+#define QFILEINFO_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 "qfileinfo.h"
+#include "qabstractfileengine.h"
+#include "qdatetime.h"
+#include "qatomic.h"
+#include "qshareddata.h"
+#include "qfilesystemengine_p.h"
+
+#include <QtCore/private/qfilesystementry_p.h>
+#include <QtCore/private/qfilesystemmetadata_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QFileInfoPrivate : public QSharedData
+{
+public:
+    enum { CachedFileFlags=0x01, CachedLinkTypeFlag=0x02, CachedBundleTypeFlag=0x04,
+           CachedMTime=0x10, CachedCTime=0x20, CachedATime=0x40,
+           CachedSize =0x08, CachedPerms=0x80 };
+
+    inline QFileInfoPrivate()
+        : QSharedData(), fileEngine(0),
+        cachedFlags(0),
+        isDefaultConstructed(true),
+        cache_enabled(true), fileFlags(0), fileSize(0)
+    {}
+    inline QFileInfoPrivate(const QFileInfoPrivate &copy)
+        : QSharedData(copy),
+        fileEntry(copy.fileEntry),
+        metaData(copy.metaData),
+        fileEngine(QFileSystemEngine::resolveEntryAndCreateLegacyEngine(fileEntry, metaData)),
+        cachedFlags(0),
+#ifndef QT_NO_FSFILEENGINE
+        isDefaultConstructed(false),
+#else
+        isDefaultConstructed(!fileEngine),
+#endif
+        cache_enabled(copy.cache_enabled), fileFlags(0), fileSize(0)
+    {}
+    inline QFileInfoPrivate(const QString &file)
+        : fileEntry(QDir::fromNativeSeparators(file)),
+        fileEngine(QFileSystemEngine::resolveEntryAndCreateLegacyEngine(fileEntry, metaData)),
+        cachedFlags(0),
+#ifndef QT_NO_FSFILEENGINE
+        isDefaultConstructed(false),
+#else
+        isDefaultConstructed(!fileEngine),
+#endif
+        cache_enabled(true), fileFlags(0), fileSize(0)
+    {
+    }
+
+    inline QFileInfoPrivate(const QFileSystemEntry &file, const QFileSystemMetaData &data)
+        : QSharedData(),
+        fileEntry(file),
+        metaData(data),
+        cachedFlags(0),
+        isDefaultConstructed(false),
+        cache_enabled(true), fileFlags(0), fileSize(0)
+    {
+    }
+
+    inline void clearFlags() const {
+        fileFlags = 0;
+        cachedFlags = 0;
+        if (fileEngine)
+            (void)fileEngine->fileFlags(QAbstractFileEngine::Refresh);
+    }
+    inline void clear() {
+        metaData.clear();
+        clearFlags();
+        for (int i = QAbstractFileEngine::NFileNames - 1 ; i >= 0 ; --i)
+            fileNames[i].clear();
+        fileOwners[1].clear();
+        fileOwners[0].clear();
+    }
+
+    uint getFileFlags(QAbstractFileEngine::FileFlags) const;
+    QDateTime &getFileTime(QAbstractFileEngine::FileTime) const;
+    QString getFileName(QAbstractFileEngine::FileName) const;
+    QString getFileOwner(QAbstractFileEngine::FileOwner own) const;
+
+    QFileSystemEntry fileEntry;
+    mutable QFileSystemMetaData metaData;
+
+    QScopedPointer<QAbstractFileEngine> const fileEngine;
+
+    mutable QString fileNames[QAbstractFileEngine::NFileNames];
+    mutable QString fileOwners[2];
+
+    mutable uint cachedFlags : 30;
+    bool const isDefaultConstructed : 1; // QFileInfo is a default constructed instance
+    bool cache_enabled : 1;
+    mutable uint fileFlags;
+    mutable qint64 fileSize;
+    mutable QDateTime fileTimes[3];
+    inline bool getCachedFlag(uint c) const
+    { return cache_enabled ? (cachedFlags & c) : 0; }
+    inline void setCachedFlag(uint c) const
+    { if (cache_enabled) cachedFlags |= c; }
+
+};
+
+QT_END_NAMESPACE
+
+#endif // QFILEINFO_P_H