188 lines
4.3 KiB
C++
188 lines
4.3 KiB
C++
/**
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* MaNGOS is a full featured server for World of Warcraft, supporting
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* the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
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*
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* Copyright (C) 2005-2017 MaNGOS project <https://getmangos.eu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* World of Warcraft, and all World of Warcraft or Warcraft art, images,
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* and lore are copyrighted by Blizzard Entertainment, Inc.
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*/
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#ifndef MANGOS_CREATIONPOLICY_H
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#define MANGOS_CREATIONPOLICY_H
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#include <stdlib.h>
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#include "Platform/Define.h"
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namespace MaNGOS
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{
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template<class T>
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/**
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* @brief OperatorNew policy creates an object on the heap using new.
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*
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*/
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class OperatorNew
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{
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public:
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/**
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* @brief
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*
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* @return T
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*/
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static T* Create()
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{
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return (new T);
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}
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/**
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* @brief
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*
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* @param obj
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*/
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static void Destroy(T* obj)
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{
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delete obj;
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}
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};
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template<class T>
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/**
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* @brief LocalStaticCreation policy creates an object on the stack the first time call Create.
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*
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*/
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class LocalStaticCreation
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{
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/**
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* @brief
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*
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*/
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union MaxAlign
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{
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char t_[sizeof(T)]; /**< TODO */
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short int shortInt_; /**< TODO */
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int int_; /**< TODO */
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long int longInt_; /**< TODO */
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float float_; /**< TODO */
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double double_; /**< TODO */
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long double longDouble_; /**< TODO */
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struct Test;
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int Test::* pMember_; /**< TODO */
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/**
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* @brief
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*
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* @param Test::pMemberFn_)(int
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* @return int
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*/
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int (Test::*pMemberFn_)(int);
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};
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public:
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/**
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* @brief
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*
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* @return T
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*/
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static T* Create()
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{
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static MaxAlign si_localStatic;
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return new(&si_localStatic) T;
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}
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/**
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* @brief
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*
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* @param obj
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*/
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static void Destroy(T* obj)
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{
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obj->~T();
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}
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};
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/**
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* CreateUsingMalloc by pass the memory manger.
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*/
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template<class T>
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/**
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* @brief
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*
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*/
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class CreateUsingMalloc
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{
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public:
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/**
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* @brief
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*
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* @return T
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*/
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static T* Create()
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{
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void* p = malloc(sizeof(T));
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if (!p)
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{ return NULL; }
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return new(p) T;
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}
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/**
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* @brief
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*
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* @param p
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*/
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static void Destroy(T* p)
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{
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p->~T();
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free(p);
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}
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};
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template<class T, class CALL_BACK>
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/**
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* @brief CreateOnCallBack creates the object base on the call back.
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*
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*/
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class CreateOnCallBack
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{
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public:
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/**
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* @brief
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*
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* @return T
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*/
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static T* Create()
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{
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return CALL_BACK::createCallBack();
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}
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/**
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* @brief
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*
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* @param p
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*/
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static void Destroy(T* p)
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{
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CALL_BACK::destroyCallBack(p);
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}
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};
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}
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#endif
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