/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2006 Torus Knot Software Ltd
Also see acknowledgements in Readme.html

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

This program 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 for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.

You may alternatively use this source under the terms of a specific version of
the OGRE Unrestricted License provided you have obtained such a license from
Torus Knot Software Ltd.
-----------------------------------------------------------------------------
*/

// 08/11/2009: Small adjustments for Orxonox by Fabian 'x3n' Landau

#include "DynLibManager.h"

#include "DynLib.h"

namespace orxonox
{
    //-----------------------------------------------------------------------
    //! Static pointer to the singleton
    DynLibManager* DynLibManager::singletonPtr_s  = nullptr;

    //-----------------------------------------------------------------------
    DynLibManager::DynLibManager()
    {
    }
    //-----------------------------------------------------------------------
    DynLib* DynLibManager::load( const std::string& filename)
    {
        DynLibList::iterator i = mLibList.find(filename);
        if (i != mLibList.end())
        {
            return i->second;
        }
        else
        {
            DynLib* pLib = new DynLib(filename);
            pLib->load();
            mLibList[filename] = pLib;
            return pLib;
        }
    }
    //-----------------------------------------------------------------------
    void DynLibManager::unload(DynLib* lib)
    {
        DynLibList::iterator i = mLibList.find(lib->getName());
        if (i != mLibList.end())
        {
            mLibList.erase(i);
        }
        lib->unload();
        delete lib;
    }
    //-----------------------------------------------------------------------
    DynLibManager::~DynLibManager()
    {
        // Unload & delete resources in turn
        for (const auto& mapEntry : mLibList)
        {
            mapEntry.second->unload();
            delete mapEntry.second;
        }

        // Empty the list
        mLibList.clear();
    }
}