dblock.h

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Boost Software License - Version 1.0 - August 17th, 2003
 *
 * Permission is hereby granted, free of charge, to any person or organization
 * obtaining a copy of the software and accompanying documentation covered by
 * this license (the "Software") to use, reproduce, display, distribute,
 * execute, and transmit the Software, and to prepare derivative works of the
 * Software, and to permit third-parties to whom the Software is furnished to
 * do so, all subject to the following:
 *
 * The copyright notices in the Software and this entire statement, including
 * the above license grant, this restriction and the following disclaimer,
 * must be included in all copies of the Software, in whole or in part, and
 * all derivative works of the Software, unless such copies or derivative
 * works are solely in the form of machine-executable object code generated by
 * a source language processor.
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#pragma once
 
#include <QMutex>
#include <QString>
#include <QSet>
#include "dbconfig.h"
 
class QSqlError;
class QSqlQuery;
class QSqlDatabase;
 
namespace LC
{
    namespace Util
    {
        class DBLock
        {
            QSqlDatabase& Database_;
 
            bool Good_ = false;
            bool Initialized_ = false;
 
            static QMutex LockedMutex_;
            static QSet<QString> LockedBases_;
        public:
            DBLock (const DBLock&) = delete;
            DBLock& operator= (const DBLock&) = delete;
 
            DBLock (DBLock&&) = default;
 
            UTIL_DB_API DBLock (QSqlDatabase& database);
 
            UTIL_DB_API ~DBLock ();
 
            UTIL_DB_API void Init ();
 
            UTIL_DB_API void Good ();
 
            UTIL_DB_API static void DumpError (const QSqlError& error);
 
            UTIL_DB_API static void DumpError (const QSqlQuery& query);
 
            UTIL_DB_API static void Execute (QSqlQuery& query);
        };
    };
};