dumper.h

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#pragma once
 
#include <variant>
#include <QProcess>
#include <QFuture>
#include "dbconfig.h"
 
namespace LC::Util
{
    class UTIL_DB_API Dumper : public QObject
    {
        QProcess * const Dumper_;
        QProcess * const Restorer_;
 
        bool HadError_ = false;
 
        int FinishedCount_ = 0;
    public:
        struct Finished {};
        struct Error
        {
            QString What_;
 
            explicit Error (QString str)
            : What_ { std::move (str) }
            {
            }
        };
        using Result_t = std::variant<Finished, Error>;
    private:
        QFutureInterface<Result_t> Iface_;
    public:
        Dumper (const QString& from, const QString& to, QObject* = nullptr);
 
        QFuture<Result_t> GetFuture ();
    private:
        void HandleProcessFinished (QProcess*);
        void HandleProcessError (const QProcess*);
        void ReportResult (const Result_t&);
    };
}