DatabaseWorker.hpp

#ifndef H_EXTENSIONS_CUTEHMI_SHAREDDATABASE_0_INCLUDE_CUTEHMI_SHAREDDATABASE_DATABASEWORKER_HPP
#define H_EXTENSIONS_CUTEHMI_SHAREDDATABASE_0_INCLUDE_CUTEHMI_SHAREDDATABASE_DATABASEWORKER_HPP
 
#include "internal/common.hpp"
 
#include <cutehmi/Worker.hpp>
 
#include <QSqlDatabase>
 
namespace cutehmi {
namespace shareddatabase {
 
class CUTEHMI_SHAREDDATABASE_API DatabaseWorker:
    public QObject
{
        Q_OBJECT
 
    public:
        explicit DatabaseWorker(const QString & connectionName, std::function<void(QSqlDatabase & db)> task = nullptr);
 
        void setTask(std::function<void(QSqlDatabase & db)> task);
 
        virtual void job(QSqlDatabase & db);
 
        void wait() const;
 
        bool isReady() const;
 
        bool isWorking() const;
 
        void work();
 
    signals:
        void started();
 
        void ready();
 
        void striked(const QString & reason);
 
    protected:
        QThread * dbThread() const;
 
        QSqlDatabase * db();
 
        const QSqlDatabase * db() const;
 
    private slots:
        void updateDbThread(const QString & connectionName);
 
    private:
        void instantiateWorker();
 
        struct Members {
            const QString connectionName;
            std::function<void(QSqlDatabase & db)> task;
            std::unique_ptr<Worker> worker;
            std::unique_ptr<QSqlDatabase> db;
        };
 
        MPtr<Members> m;
};
 
}
}
 
#endif
 
//(c)C: Copyright © 2020, Michał Policht <michal@policht.pl>. All rights reserved.
//(c)C: This file is a part of CuteHMI.
//(c)C: CuteHMI is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
//(c)C: CuteHMI 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 Lesser General Public License for more details.
//(c)C: You should have received a copy of the GNU Lesser General Public License along with CuteHMI.  If not, see <https://www.gnu.org/licenses/>.