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/****************************************************************************
**
** 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 QFILESYSTEMWATCHER_POLLING_P_H
#define QFILESYSTEMWATCHER_POLLING_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/qfileinfo.h>
#include <QtCore/qmutex.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qdir.h>
#include <QtCore/qtimer.h>
#include <QtCore/qhash.h>
#include "qfilesystemwatcher_p.h"
QT_REQUIRE_CONFIG(filesystemwatcher);
QT_BEGIN_NAMESPACE
enum { PollingInterval = 1000 };
class QPollingFileSystemWatcherEngine : public QFileSystemWatcherEngine
{
Q_OBJECT
class FileInfo
{
uint ownerId;
uint groupId;
QFile::Permissions permissions;
QDateTime lastModified;
QStringList entries;
public:
FileInfo(const QFileInfo &fileInfo)
: ownerId(fileInfo.ownerId()),
groupId(fileInfo.groupId()),
permissions(fileInfo.permissions()),
lastModified(fileInfo.lastModified())
{
if (fileInfo.isDir()) {
entries = fileInfo.absoluteDir().entryList(QDir::AllEntries);
}
}
FileInfo &operator=(const QFileInfo &fileInfo)
{
*this = FileInfo(fileInfo);
return *this;
}
bool operator!=(const QFileInfo &fileInfo) const
{
if (fileInfo.isDir() && entries != fileInfo.absoluteDir().entryList(QDir::AllEntries))
return true;
return (ownerId != fileInfo.ownerId()
|| groupId != fileInfo.groupId()
|| permissions != fileInfo.permissions()
|| lastModified != fileInfo.lastModified());
}
};
QHash<QString, FileInfo> files, directories;
public:
QPollingFileSystemWatcherEngine(QObject *parent);
QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories) override;
QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories) override;
private Q_SLOTS:
void timeout();
private:
QTimer timer;
};
QT_END_NAMESPACE
#endif // QFILESYSTEMWATCHER_POLLING_P_H
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