persistent.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 of the License, 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 * This file is based on WME Lite.
 * http://dead-code.org/redir.php?target=wmelite
 * Copyright (c) 2011 Jan Nedoma
 */

#ifndef WINTERMUTE_PERSISTENT_H
#define WINTERMUTE_PERSISTENT_H

namespace Wintermute {

class BasePersistenceManager;

// persistence support
typedef void *(*PERSISTBUILD)();
typedef bool(*PERSISTLOAD)(void *, BasePersistenceManager *);
typedef void(*SYS_INSTANCE_CALLBACK)(void *instance, void *data);
} // End of namespace Wintermute

#include "engines/wintermute/system/sys_class_registry.h"
namespace Wintermute {


#define DECLARE_PERSISTENT(className, parentClass)\
    static const char _className[];\
    static void *persistBuild();\
    const char *getClassName() override;\
    static bool persistLoad(void* Instance, BasePersistenceManager* PersistMgr);\
    className(TDynamicConstructor p1, TDynamicConstructor p2) : parentClass(p1, p2) { /*memset(this, 0, sizeof(class_name));*/ };\
    bool persist(BasePersistenceManager *persistMgr) override;\
    void* operator new (size_t size);\
    void operator delete(void* p);\


#define IMPLEMENT_PERSISTENT(className, persistentClass)\
    const char className::_className[] = #className;\
    void* className::persistBuild() {\
        return ::new className(DYNAMIC_CONSTRUCTOR, DYNAMIC_CONSTRUCTOR);\
    }\
    \
    bool className::persistLoad(void *instance, BasePersistenceManager *persistMgr) {\
        return ((className*)instance)->persist(persistMgr);\
    }\
    \
    const char *className::getClassName() {\
        return #className;\
    }\
    \
    /*SystemClass Register##class_name(class_name::_className, class_name::PersistBuild, class_name::PersistLoad, persistent_class);*/\
    \
    void* className::operator new(size_t size) {\
        void* ret = ::operator new(size);\
        SystemClassRegistry::getInstance()->registerInstance(#className, ret);\
        return ret;\
    }\
    \
    void className::operator delete(void *p) {\
        SystemClassRegistry::getInstance()->unregisterInstance(#className, p);\
        ::operator delete(p);\
    }\

#define TMEMBER(memberName) #memberName, &memberName
#define TMEMBER_PTR(memberName) #memberName, &memberName
#define TMEMBER_INT(memberName) #memberName, (int32*)&memberName

} // End of namespace Wintermute

#endif