xercesmanager.cpp

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/*
    Sheep - A Rigid Body Dynamics Engine
    Copyright (C) 2001-2004 Francois Beaune
    Contact: http://toxicengine.sourceforge.net/

    This file is part of Sheep.

    Sheep is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    Sheep is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Sheep; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "xercesmanager.h"  // include first
#include "xercesutils.h"

#include <xercesc/util/PlatformUtils.hpp>
#include <xercesc/util/XercesDefs.hpp>

#include <cassert>
#include <cstdlib>  // exit(), EXIT_FAILURE
#include <iostream>

using namespace sheep;
using namespace std;
using namespace xercesc;

//#define VERBOSE

int XercesManager::m_uses = 0;
static XercesManager xercesmanager;

XercesManager::~XercesManager() {
    if(m_uses > 0) {
#ifdef VERBOSE
        cerr << "Automatically shutting down Xerces-C XML Parser..." << endl;
#endif  // VERBOSE
        XMLPlatformUtils::Terminate();  
    }
}

void XercesManager::Initialize() {
    if(m_uses == 0) {
        try {
            XMLPlatformUtils::Initialize();
        }
        catch(const XMLException &e) {
            cerr << "Error during Xerces-C initialization." << endl;
            cerr << "Exception message: " << e.getMessage() << endl;
            exit(EXIT_FAILURE);
        }
    }

    ++m_uses;
}

void XercesManager::Shutdown() {
    assert(m_uses > 0);

    --m_uses;

    if(m_uses == 0)
        XMLPlatformUtils::Terminate();
}

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