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path: root/dbaccess/source/ui/misc/moduledbu.cxx
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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_dbaccess.hxx"

#ifndef _DBAUI_MODULE_DBU_HXX_
#include "moduledbu.hxx"
#endif

#ifndef _TOOLS_RESMGR_HXX
#include <tools/resmgr.hxx>
#endif
#ifndef _SOLAR_HRC
#include <svl/solar.hrc>
#endif
#ifndef _TOOLS_DEBUG_HXX
#include <tools/debug.hxx>
#endif

#define ENTER_MOD_METHOD()  \
    ::osl::MutexGuard aGuard(s_aMutex); \
    ensureImpl()

//.........................................................................
namespace dbaui
{
//.........................................................................

//=========================================================================
//= OModuleImpl
//=========================================================================
/** implementation for <type>OModule</type>. not threadsafe, has to be guarded by it's owner
*/
class OModuleImpl
{
    ResMgr* m_pRessources;

public:
    /// ctor
    OModuleImpl();
    ~OModuleImpl();

    /// get the manager for the ressources of the module
    ResMgr* getResManager();
};

DBG_NAME(OModuleImpl)
//-------------------------------------------------------------------------
OModuleImpl::OModuleImpl()
    :m_pRessources(NULL)
{
    DBG_CTOR(OModuleImpl,NULL);

}

//-------------------------------------------------------------------------
OModuleImpl::~OModuleImpl()
{
    if (m_pRessources)
        delete m_pRessources;

    DBG_DTOR(OModuleImpl,NULL);
}

//-------------------------------------------------------------------------
ResMgr* OModuleImpl::getResManager()
{
    // note that this method is not threadsafe, which counts for the whole class !

    if (!m_pRessources)
    {
        // create a manager with a fixed prefix
        ByteString aMgrName = ByteString( "dbu" );
        m_pRessources = ResMgr::CreateResMgr(aMgrName.GetBuffer());
    }
    return m_pRessources;
}

//=========================================================================
//= OModule
//=========================================================================
::osl::Mutex    OModule::s_aMutex;
sal_Int32       OModule::s_nClients = 0;
OModuleImpl*    OModule::s_pImpl = NULL;
//-------------------------------------------------------------------------
ResMgr* OModule::getResManager()
{
    ENTER_MOD_METHOD();
    return s_pImpl->getResManager();
}

//-------------------------------------------------------------------------
void OModule::registerClient()
{
    ::osl::MutexGuard aGuard(s_aMutex);
    ++s_nClients;
}

//-------------------------------------------------------------------------
void OModule::revokeClient()
{
    ::osl::MutexGuard aGuard(s_aMutex);
    if (!--s_nClients && s_pImpl)
    {
        delete s_pImpl;
        s_pImpl = NULL;
    }
}

//-------------------------------------------------------------------------
void OModule::ensureImpl()
{
    if (s_pImpl)
        return;
    s_pImpl = new OModuleImpl();
}

//.........................................................................
}   // namespace dbaui
//.........................................................................