XMemory.cpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2003 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation, and was
- * originally based on software copyright (c) 1999, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: XMemory.cpp,v 1.6 2003/05/26 21:47:47 peiyongz Exp $
- */
- // ---------------------------------------------------------------------------
- // Includes
- // ---------------------------------------------------------------------------
- #include <xercesc/util/XMemory.hpp>
- #include <xercesc/util/PlatformUtils.hpp>
- #include <xercesc/framework/MemoryManager.hpp>
- #include <assert.h>
- XERCES_CPP_NAMESPACE_BEGIN
- void* XMemory::operator new(size_t size)
- {
- size_t headerSize = XMLPlatformUtils::alignPointerForNewBlockAllocation(
- sizeof(MemoryManager*));
-
- void* const block = XMLPlatformUtils::fgMemoryManager->allocate
- (
- headerSize + size
- );
- *(MemoryManager**)block = XMLPlatformUtils::fgMemoryManager;
- return (char*)block + headerSize;
- }
- void* XMemory::operator new(size_t size, MemoryManager* manager)
- {
- assert(manager != 0);
-
- size_t headerSize = XMLPlatformUtils::alignPointerForNewBlockAllocation(
- sizeof(MemoryManager*));
- void* const block = manager->allocate(headerSize + size);
- *(MemoryManager**)block = manager;
- return (char*)block + headerSize;
- }
- void XMemory::operator delete(void* p)
- {
- if (p != 0)
- {
- size_t headerSize = XMLPlatformUtils::alignPointerForNewBlockAllocation(
- sizeof(MemoryManager*));
- void* const block = (char*)p - headerSize;
- MemoryManager* const manager = *(MemoryManager**)block;
- assert(manager != 0);
- manager->deallocate(block);
- }
- }
- //The HP compiler is complaining about duplicate overloading of delete
- #if !defined(XML_HPUX)
- void XMemory::operator delete(void* p, MemoryManager* manager)
- {
- assert(manager != 0);
-
- if (p != 0)
- {
- size_t headerSize = XMLPlatformUtils::alignPointerForNewBlockAllocation(sizeof(MemoryManager*));
- void* const block = (char*)p - headerSize;
- assert(*(MemoryManager**)block == manager);
- /***
- * NOTE: for compiler which can't properly trace the memory manager used in the
- * placement new, we use the memory manager embedded in the memory rather
- * than the one passed in
- */
- MemoryManager* pM = *(MemoryManager**)block;
- pM->deallocate(block);
- }
- }
- #endif
- XERCES_CPP_NAMESPACE_END