121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QFILESYSTEMWATCHER_POLLING_P_H
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#define QFILESYSTEMWATCHER_POLLING_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists for the convenience
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// of the QLibrary class. This header file may change from
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// version to version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <QtCore/qfileinfo.h>
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#include <QtCore/qmutex.h>
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#include <QtCore/qdatetime.h>
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#include <QtCore/qdir.h>
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#include <QtCore/qtimer.h>
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#include <QtCore/qhash.h>
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#include "qfilesystemwatcher_p.h"
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#ifndef QT_NO_FILESYSTEMWATCHER
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QT_BEGIN_NAMESPACE
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enum { PollingInterval = 1000 };
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class QPollingFileSystemWatcherEngine : public QFileSystemWatcherEngine
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{
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Q_OBJECT
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class FileInfo
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{
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uint ownerId;
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uint groupId;
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QFile::Permissions permissions;
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QDateTime lastModified;
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QStringList entries;
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public:
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FileInfo(const QFileInfo &fileInfo)
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: ownerId(fileInfo.ownerId()),
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groupId(fileInfo.groupId()),
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permissions(fileInfo.permissions()),
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lastModified(fileInfo.lastModified())
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{
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if (fileInfo.isDir()) {
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entries = fileInfo.absoluteDir().entryList(QDir::AllEntries);
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}
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}
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FileInfo &operator=(const QFileInfo &fileInfo)
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{
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*this = FileInfo(fileInfo);
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return *this;
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}
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bool operator!=(const QFileInfo &fileInfo) const
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{
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if (fileInfo.isDir() && entries != fileInfo.absoluteDir().entryList(QDir::AllEntries))
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return true;
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return (ownerId != fileInfo.ownerId()
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|| groupId != fileInfo.groupId()
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|| permissions != fileInfo.permissions()
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|| lastModified != fileInfo.lastModified());
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}
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};
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QHash<QString, FileInfo> files, directories;
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public:
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QPollingFileSystemWatcherEngine(QObject *parent);
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QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories) Q_DECL_OVERRIDE;
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QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories) Q_DECL_OVERRIDE;
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private Q_SLOTS:
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void timeout();
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private:
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QTimer timer;
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};
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QT_END_NAMESPACE
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#endif // !QT_NO_FILESYSTEMWATCHER
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#endif // QFILESYSTEMWATCHER_POLLING_P_H
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