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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#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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