/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QFILESYSTEMITERATOR_P_H
#define QFILESYSTEMITERATOR_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 <QtCore/qglobal.h>

#ifndef QT_NO_FILESYSTEMITERATOR

#include <QtCore/qdir.h>
#include <QtCore/qdiriterator.h>
#include <QtCore/qstringlist.h>

#include <QtCore/private/qfilesystementry_p.h>
#include <QtCore/private/qfilesystemmetadata_p.h>

// Platform-specific headers
#if !defined(Q_OS_WIN)
#include <QtCore/qscopedpointer.h>
#endif

QT_BEGIN_NAMESPACE

class QFileSystemIterator
{
public:
    QFileSystemIterator(const QFileSystemEntry &entry, QDir::Filters filters,
            const QStringList &nameFilters, QDirIterator::IteratorFlags flags
                = QDirIterator::FollowSymlinks | QDirIterator::Subdirectories);
    ~QFileSystemIterator();

    bool advance(QFileSystemEntry &fileEntry, QFileSystemMetaData &metaData);

private:
    QFileSystemEntry::NativePath nativePath;

    // Platform-specific data
#if defined(Q_OS_WIN)
    QString dirPath;
    HANDLE findFileHandle;
    QStringList uncShares;
    bool uncFallback;
    int uncShareIndex;
    bool onlyDirs;
#else
    QT_DIR *dir;
    QT_DIRENT *dirEntry;
#if defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(Q_OS_CYGWIN) || defined(QT_EXT_QNX_READDIR_R)
    // for readdir_r
    QScopedPointer<QT_DIRENT, QScopedPointerPodDeleter> mt_file;
#if defined(QT_EXT_QNX_READDIR_R)
    // for _readdir_r
    size_t direntSize;
#endif
#endif
    int lastError;
#endif

    Q_DISABLE_COPY(QFileSystemIterator)
};

QT_END_NAMESPACE

#endif // QT_NO_FILESYSTEMITERATOR

#endif // include guard
