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/*
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
*
* 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 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef TRINITY_CREATIONPOLICY_H
#define TRINITY_CREATIONPOLICY_H
#include <stdlib.h>
#include "Platform/Define.h"
namespace Trinity
{
/**
* OperatorNew policy creates an object on the heap using new.
*/
template <class T>
class TRINITY_DLL_DECL OperatorNew
{
public:
static T* Create(void) { return (new T); }
static void Destroy(T *obj) { delete obj; }
};
/**
* LocalStaticCreation policy creates an object on the stack
* the first time call Create.
*/
template <class T>
class TRINITY_DLL_DECL LocalStaticCreation
{
union MaxAlign
{
char t_[sizeof(T)];
short int shortInt_;
int int_;
long int longInt_;
float float_;
double double_;
long double longDouble_;
struct Test;
int Test::* pMember_;
int (Test::*pMemberFn_)(int);
};
public:
static T* Create(void)
{
static MaxAlign si_localStatic;
return new(&si_localStatic) T;
}
static void Destroy(T *obj) { obj->~T(); }
};
/**
* CreateUsingMalloc by pass the memory manger.
*/
template<class T>
class TRINITY_DLL_DECL CreateUsingMalloc
{
public:
static T* Create()
{
void* p = ::malloc(sizeof(T));
if (!p) return 0;
return new(p) T;
}
static void Destroy(T* p)
{
p->~T();
::free(p);
}
};
/**
* CreateOnCallBack creates the object base on the call back.
*/
template<class T, class CALL_BACK>
class TRINITY_DLL_DECL CreateOnCallBack
{
public:
static T* Create()
{
return CALL_BACK::createCallBack();
}
static void Destroy(T *p)
{
CALL_BACK::destroyCallBack(p);
}
};
}
#endif
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