MemBufFormatTarget.cpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 1999-2002 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: MemBufFormatTarget.cpp,v 1.7 2003/05/16 21:36:55 knoaman Exp $
- * $Log: MemBufFormatTarget.cpp,v $
- * Revision 1.7 2003/05/16 21:36:55 knoaman
- * Memory manager implementation: Modify constructors to pass in the memory manager.
- *
- * Revision 1.6 2003/05/15 18:26:07 knoaman
- * Partial implementation of the configurable memory manager.
- *
- * Revision 1.5 2002/11/04 15:00:21 tng
- * C++ Namespace Support.
- *
- * Revision 1.4 2002/08/12 21:38:22 peiyongz
- * Bug#11462: MemBufFormatTarget issue(2) .., proposed patch from
- * Esmond Pitt (pitte@anz.com)
- *
- * Revision 1.3 2002/07/22 23:23:15 tng
- * DOM L3: MemBufFormatTarget stores fDataBuf as XMLByte directly, consistent design as MemBufInputSource
- *
- * Revision 1.2 2002/06/05 15:47:13 peiyongz
- * data member changed, reset() added.
- *
- * Revision 1.1 2002/05/28 22:40:46 peiyongz
- * DOM3 Save Interface: DOMWriter/DOMWriterFilter
- *
- */
- #include <xercesc/framework/MemBufFormatTarget.hpp>
- #include <xercesc/util/XMLString.hpp>
- #include <string.h>
- XERCES_CPP_NAMESPACE_BEGIN
- MemBufFormatTarget::MemBufFormatTarget( int initCapacity
- , MemoryManager* const manager)
- : fMemoryManager(manager)
- , fDataBuf(0)
- , fIndex(0)
- , fCapacity(initCapacity)
- {
- // Buffer is one larger than capacity, to allow for zero term
- fDataBuf = (XMLByte*) fMemoryManager->allocate
- (
- (fCapacity + 4) * sizeof(XMLByte)
- );//new XMLByte[fCapacity+4];
- // Keep it null terminated
- fDataBuf[0] = XMLByte(0);
- }
- MemBufFormatTarget::~MemBufFormatTarget()
- {
- fMemoryManager->deallocate(fDataBuf);//delete [] fDataBuf;
- }
- void MemBufFormatTarget::writeChars(const XMLByte* const toWrite
- , const unsigned int count
- , XMLFormatter * const formatter)
- {
- if (count) {
- insureCapacity(count);
- memcpy(&fDataBuf[fIndex], toWrite, count * sizeof(XMLByte));
- fIndex += count;
- }
- }
- const XMLByte* MemBufFormatTarget::getRawBuffer() const
- {
- fDataBuf[fIndex] = 0;
- fDataBuf[fIndex + 1] = 0;
- fDataBuf[fIndex + 2] = 0;
- fDataBuf[fIndex + 3] = 0;
- return fDataBuf;
- }
- void MemBufFormatTarget::reset()
- {
- fIndex = 0;
- fDataBuf[0] = 0;
- fDataBuf[fIndex + 1] = 0;
- fDataBuf[fIndex + 2] = 0;
- fDataBuf[fIndex + 3] = 0;
- }
- // ---------------------------------------------------------------------------
- // MemBufFormatTarget: Private helper methods
- // ---------------------------------------------------------------------------
- void MemBufFormatTarget::insureCapacity(const unsigned int extraNeeded)
- {
- // If we can handle it, do nothing yet
- if (fIndex + extraNeeded < fCapacity)
- return;
- // Oops, not enough room. Calc new capacity and allocate new buffer
- const unsigned int newCap = (unsigned int)((fIndex + extraNeeded) * 2);
- XMLByte* newBuf = (XMLByte*) fMemoryManager->allocate
- (
- (newCap+4) * sizeof(XMLByte)
- );//new XMLByte[newCap+4];
- // Copy over the old stuff
- memcpy(newBuf, fDataBuf, fCapacity * sizeof(XMLByte) + 4);
- // Clean up old buffer and store new stuff
- fMemoryManager->deallocate(fDataBuf); //delete [] fDataBuf;
- fDataBuf = newBuf;
- fCapacity = newCap;
- }
- XERCES_CPP_NAMESPACE_END