NodeVector.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
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- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
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- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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- * 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: NodeVector.cpp,v 1.4 2003/05/22 02:26:51 knoaman Exp $
- */
- //
- // file: NodeVector.cpp
- // Implementation of class NodeVector.
- // (Use of STL vector, or equivalent, would have been nice,
- // but is not available. 'NodeImpl *' is the only type
- // kept in Vectors in this DOM implementation, so this is
- // a hardwired implementation for that type.
- //
- #include "NodeVector.hpp"
- #include <xercesc/framework/MemoryManager.hpp>
- #include <assert.h>
- XERCES_CPP_NAMESPACE_BEGIN
- NodeVector::NodeVector(MemoryManager* const manager)
- : fMemoryManager(manager)
- {
- init(10);
- };
- NodeVector::NodeVector(unsigned int size,
- MemoryManager* const manager)
- : fMemoryManager(manager)
- {
- init(size);
- };
- void NodeVector::init(unsigned int size) {
- assert(size > 0);
- data = (NodeImpl**) fMemoryManager->allocate(size * sizeof(NodeImpl*));//new NodeImpl *[size];
- assert(data != 0);
- allocatedSize = size;
- nextFreeSlot = 0;
- };
- NodeVector::~NodeVector() {
- fMemoryManager->deallocate(data);//delete [] data;
- };
- void NodeVector::addElement(NodeImpl *elem) {
- checkSpace();
- data[nextFreeSlot] = elem;
- ++nextFreeSlot;
- };
- void NodeVector::checkSpace() {
- if (nextFreeSlot == allocatedSize) {
- unsigned int grow = allocatedSize/2;
- if (grow < 50) grow = 50;
- unsigned int newAllocatedSize = allocatedSize + grow;
- NodeImpl **newData = (NodeImpl**) fMemoryManager->allocate
- (
- newAllocatedSize * sizeof(NodeImpl*)
- );//new NodeImpl *[newAllocatedSize];
- assert(newData != 0);
- for (unsigned int i=0; i<allocatedSize; i++) {
- newData[i] = data[i];
- };
- fMemoryManager->deallocate(data);//delete [] data;
- allocatedSize = newAllocatedSize;
- data = newData;
- };
- };
-
- NodeImpl *NodeVector::elementAt(unsigned int index) {
- if (index >= nextFreeSlot)
- return 0;
- return data[index];
- };
- NodeImpl *NodeVector::lastElement() {
- if (nextFreeSlot == 0)
- return 0;
- return data[nextFreeSlot-1];
- };
- void NodeVector::insertElementAt(NodeImpl *elem, unsigned int index) {
- unsigned int i;
- assert(index <= nextFreeSlot);
- checkSpace();
- for (i=nextFreeSlot; i>index; --i) {
- data[i] = data[i-1];
- }
- data[index] = elem;
- ++nextFreeSlot;
- };
- void NodeVector::removeElementAt(unsigned int index) {
- assert(index < nextFreeSlot);
- for (unsigned int i=index; i<nextFreeSlot-1; ++i) {
- data[i] = data[i+1];
- }
- --nextFreeSlot;
- };
- void NodeVector::reset() {
- nextFreeSlot = 0;
- };
- void NodeVector::setElementAt(NodeImpl *elem, unsigned int index) {
- assert(index < nextFreeSlot);
- data[index] = elem;
- };
- unsigned int NodeVector::size() {
- return nextFreeSlot;
- };
-
- XERCES_CPP_NAMESPACE_END