145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: XMemory.hpp 527149 2007-04-10 14:56:39Z amassari $
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*/
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#if !defined(XERCESC_INCLUDE_GUARD_XMEMORY_HPP)
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#define XERCESC_INCLUDE_GUARD_XMEMORY_HPP
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#include <xercesc/util/XercesDefs.hpp>
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#include <stdlib.h>
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XERCES_CPP_NAMESPACE_BEGIN
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class MemoryManager;
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/**
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* This class makes it possible to override the C++ memory management by
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* adding new/delete operators to this base class.
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*
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* This class is used in conjuction with the pluggable memory manager. It
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* allows applications to control Xerces memory management.
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*/
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class XMLUTIL_EXPORT XMemory
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{
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public :
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// -----------------------------------------------------------------------
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// The C++ memory management
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// -----------------------------------------------------------------------
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/** @name The C++ memory management */
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//@{
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/**
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* This method overrides operator new
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*
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* @param size The requested memory size
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*/
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void* operator new(size_t size);
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#if defined(XERCES_MFC_SUPPORT)
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/**
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* This method overrides the MFC debug version of the operator new
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*
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* @param size The requested memory size
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* @param file The file where the allocation was requested
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* @param line The line where the allocation was requested
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*/
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void* operator new(size_t size, const char* file, int line);
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/**
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* This method provides a matching delete for the MFC debug new
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*
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* @param p The pointer to the allocated memory
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* @param file The file where the allocation was requested
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* @param line The line where the allocation was requested
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*/
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void operator delete(void* p, const char* file, int line);
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#endif
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/**
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* This method defines a custom operator new, that will use the provided
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* memory manager to perform the allocation
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*
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* @param size The requested memory size
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* @param memMgr An application's memory manager
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*/
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void* operator new(size_t size, MemoryManager* memMgr);
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/**
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* This method overrides placement operator new
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*
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* @param size The requested memory size
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* @param ptr The memory location where the object should be allocated
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*/
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void* operator new(size_t size, void* ptr);
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/**
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* This method overrides operator delete
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*
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* @param p The pointer to the allocated memory
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*/
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void operator delete(void* p);
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//The Borland compiler is complaining about duplicate overloading of delete
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#if !defined(XERCES_NO_MATCHING_DELETE_OPERATOR)
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/**
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* This method provides a matching delete for the custom operator new
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*
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* @param p The pointer to the allocated memory
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* @param memMgr An application's memory manager
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*/
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void operator delete(void* p, MemoryManager* memMgr);
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/**
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* This method provides a matching delete for the placement new
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*
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* @param p The pointer to the allocated memory
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* @param ptr The memory location where the object had to be allocated
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*/
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void operator delete(void* p, void* ptr);
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#endif
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//@}
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protected :
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// -----------------------------------------------------------------------
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// Hidden Constructors
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// -----------------------------------------------------------------------
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/** @name Constructor */
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//@{
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/**
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* Protected default constructor
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*/
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XMemory()
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{
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}
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//@}
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#if defined(XERCES_NEED_XMEMORY_VIRTUAL_DESTRUCTOR)
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virtual ~XMemory()
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{
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}
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#endif
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};
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XERCES_CPP_NAMESPACE_END
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#endif
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