author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 09:29:21 +0200 | |
changeset 0 | e35f40988205 |
permissions | -rw-r--r-- |
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// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// Node container implementation |
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// |
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|
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#include <xml/utils/xmlengmem.h> |
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#include "xmlengownednodescontainer.h" |
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#include "xmlengdomdefs.h" |
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#include <stdapis/libxml2/libxml2_tree.h> |
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#include <stdapis/libxml2/libxml2_globals.h> |
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|
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// -------------------------------------------------------------------------------------- |
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// Creates an instance of CXmlEngOwnedNodesContainer |
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// -------------------------------------------------------------------------------------- |
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// |
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CXmlEngOwnedNodesContainer* CXmlEngOwnedNodesContainer::NewL() |
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{ |
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CXmlEngOwnedNodesContainer* obj = new (ELeave) CXmlEngOwnedNodesContainer(); |
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obj->iNodes = NULL; |
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obj->iLast = NULL; |
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obj->iCount = 0; |
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return obj; |
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} |
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|
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CXmlEngOwnedNodesContainer::~CXmlEngOwnedNodesContainer() |
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{ |
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} |
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// -------------------------------------------------------------------------------------- |
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// Searches for a node in the list |
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// |
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// @param aNode Pointer to a libxml2 node |
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// @return Index in the list of nodes [0; iCount-1] or iCount if not found |
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// -------------------------------------------------------------------------------------- |
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// |
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TUint CXmlEngOwnedNodesContainer::Lookup(xmlNodePtr aNode) |
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{ |
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TUint i = 0; |
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xmlNodePtr tmp = iNodes; |
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for(; tmp; tmp = tmp->next, i++) |
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if(tmp == aNode) |
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return i; |
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return iCount; |
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} |
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|
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// -------------------------------------------------------------------------------------- |
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// Performs clean up of the list |
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// -------------------------------------------------------------------------------------- |
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// |
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void CXmlEngOwnedNodesContainer::RemoveAll() |
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{ |
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iNodes = NULL; |
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iCount = 0; |
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} |
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|
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// -------------------------------------------------------------------------------------- |
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// Performs clean up of all owned nodes: |
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// xmlFreeNode is called on every contained pointer |
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// -------------------------------------------------------------------------------------- |
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// |
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void CXmlEngOwnedNodesContainer::FreeAll() |
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{ |
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xmlNodePtr tmp = iNodes; |
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xmlNodePtr ptr; |
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for(;tmp;) |
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{ |
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ptr = tmp; |
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tmp = tmp->next; |
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if(ptr) |
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xmlFreeNode(ptr); |
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} |
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iNodes = NULL; |
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iCount = 0; |
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} |
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|
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|
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// -------------------------------------------------------------------------------------- |
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// Adds an owned node. |
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// |
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// @param aNode A pointer to some node to be added into the container |
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// |
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// @note This method does not check whether the pointer is already in the container |
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// @note In OOM situation the node is destroyed before leave occurs |
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// -------------------------------------------------------------------------------------- |
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// |
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void CXmlEngOwnedNodesContainer::Add( |
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xmlNodePtr aNode ) |
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{ |
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if(iLast) |
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{ |
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iLast->next = aNode; |
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aNode->prev = iLast; |
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} |
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else |
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{ |
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iNodes = iLast = aNode; |
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} |
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iLast = aNode; |
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++iCount; |
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} |
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|
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// -------------------------------------------------------------------------------------- |
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// Excludes node pointer from the list of owned nodes. |
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// |
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// does nothing if provided node pointer is not on the list. |
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// -------------------------------------------------------------------------------------- |
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// |
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void CXmlEngOwnedNodesContainer::Remove( |
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xmlNodePtr aNode ) |
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{ |
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if(aNode == iLast) |
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{ |
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iLast = aNode->prev; |
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} |
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else |
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{ |
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aNode->next->prev = aNode->prev; |
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} |
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if(aNode == iNodes) |
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{ |
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iNodes = aNode->next; |
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} |
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else |
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{ |
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aNode->prev->next = aNode->next; |
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} |
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|
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aNode->prev = NULL; |
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aNode->next = NULL; |
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--iCount; |
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} |