threadmanager.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2010-04-13
 * Description : Thread object scheduling
 *
 * Copyright (C) 2010-2012 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
 *
 * This program is free software; you can redistribute it
 * and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation;
 * either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_THREAD_MANAGER_H
#define DIGIKAM_THREAD_MANAGER_H
 
// Qt includes
 
#include <QObject>
#include <QRunnable>
 
// Local includes
 
#include "digikam_export.h"
 
namespace Digikam
{
 
class DynamicThread;
class WorkerObject;
 
class DIGIKAM_EXPORT ThreadManager : public QObject
{
    Q_OBJECT
 
public:
 
    static ThreadManager* instance();
 
    void initialize(WorkerObject* const object);
    void initialize(DynamicThread* const dynamicThread);
 
public Q_SLOTS:
 
    void schedule(WorkerObject* object);
    void schedule(QRunnable* runnable);
 
protected Q_SLOTS:
 
    void slotDestroyed(QObject* object);
 
protected:
 
    explicit ThreadManager();
    ~ThreadManager() override;
 
private:
 
    // Disable
    explicit ThreadManager(QObject*)               = delete;
    ThreadManager(const ThreadManager&)            = delete;
    ThreadManager& operator=(const ThreadManager&) = delete;
 
private:
 
    friend class ThreadManagerCreator;
 
    class Private;
    Private* const d;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_THREAD_MANAGER_H