webengine/osswebengine/WebCore/platform/symbian/Libxml2/XmlEnglibxml2dll.cpp
author Pat Downey <patrick.downey@nokia.com>
Fri, 03 Jul 2009 15:54:40 +0100
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/*
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* Copyright (c) 2006-2008 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 the License "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:  Definitions and declarations that affect XML Engine Core
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*
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*/ 
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#include <stdlib.h>
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//#include "Libxml2_threads.h"
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#include "Libxml2_globals.h"
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#include <string.h>
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#include <e32std.h>
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xmlGlobalStatePtr
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xmlGetGlobalState(void)
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{
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    xmlGlobalStatePtr gs = STATIC_CAST(xmlGlobalStatePtr, Dll::Tls());
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    if(!gs)
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        {
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        gs =  (xmlGlobalStatePtr) malloc(sizeof(xmlGlobalState));
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        if(gs)
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            {
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            memset(gs, 0, sizeof(xmlGlobalState));
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		    TThreadStackInfo aInfo;
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		    RThread().StackInfo(aInfo);
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		    TUint32 stackLimit = aInfo.iLimit;
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            xmlInitializeGlobalState(gs, stackLimit);
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            xeSetTLS(gs);
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            }
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        }
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    return gs; // NOTE: NULL can be returned only during first access to the function,
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               //       which happens from XmlEngine::XmlEngineAttach() method called by XmlEngine::XmlEnginePushL() 
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}
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void xeSetTLS(void* ptr)
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{
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    Dll::SetTls(ptr);
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}
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xmlGlobalStatePtr xeGetTLS()
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{
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    return STATIC_CAST(xmlGlobalStatePtr, Dll::Tls());
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}
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void xecleanTLS()
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{
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     xmlGlobalStatePtr gs = xeGetTLS();
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     delete gs;
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     xeSetTLS(NULL);
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}