sippeangelo
125 lines
3.5 KiB
C++
125 lines
3.5 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.cpp 635226 2008-03-09 12:04:39Z borisk $
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*/
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// ---------------------------------------------------------------------------
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// Includes
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// ---------------------------------------------------------------------------
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#include <xercesc/util/XMemory.hpp>
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#include <xercesc/util/PlatformUtils.hpp>
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#include <xercesc/framework/MemoryManager.hpp>
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#include <assert.h>
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XERCES_CPP_NAMESPACE_BEGIN
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void* XMemory::operator new(size_t size)
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{
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size_t headerSize = XMLPlatformUtils::alignPointerForNewBlockAllocation(
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sizeof(MemoryManager*));
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void* const block = XMLPlatformUtils::fgMemoryManager->allocate
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(
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headerSize + size
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);
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*(MemoryManager**)block = XMLPlatformUtils::fgMemoryManager;
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return (char*)block + headerSize;
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}
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#if defined(XERCES_MFC_SUPPORT)
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void* XMemory::operator new(size_t size, const char* /*file*/, int /*line*/)
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{
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return operator new(size);
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}
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void XMemory::operator delete(void* p, const char* /*file*/, int /*line*/)
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{
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operator delete(p);
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}
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#endif
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void* XMemory::operator new(size_t size, MemoryManager* manager)
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{
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assert(manager != 0);
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size_t headerSize = XMLPlatformUtils::alignPointerForNewBlockAllocation(
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sizeof(MemoryManager*));
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void* const block = manager->allocate(headerSize + size);
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*(MemoryManager**)block = manager;
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return (char*)block + headerSize;
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}
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void* XMemory::operator new(size_t /*size*/, void* ptr)
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{
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return ptr;
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}
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void XMemory::operator delete(void* p)
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{
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if (p != 0)
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{
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size_t headerSize = XMLPlatformUtils::alignPointerForNewBlockAllocation(
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sizeof(MemoryManager*));
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void* const block = (char*)p - headerSize;
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MemoryManager* const manager = *(MemoryManager**)block;
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assert(manager != 0);
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manager->deallocate(block);
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}
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}
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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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void XMemory::operator delete(void* p, MemoryManager* manager)
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{
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assert(manager != 0);
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if (p != 0)
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{
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size_t headerSize = XMLPlatformUtils::alignPointerForNewBlockAllocation(sizeof(MemoryManager*));
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void* const block = (char*)p - headerSize;
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/***
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* assert(*(MemoryManager**)block == manager);
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*
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* NOTE: for compiler which can't properly trace the memory manager used in the
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* placement new, we use the memory manager embedded in the memory rather
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* than the one passed in
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*/
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MemoryManager* pM = *(MemoryManager**)block;
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pM->deallocate(block);
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}
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}
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void XMemory::operator delete(void* /*p*/, void* /*ptr*/)
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{
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}
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#endif
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XERCES_CPP_NAMESPACE_END
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