DynLib.h

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/*
-----------------------------------------------------------------------------
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

#ifndef _Core_DynLib_H__
#define _Core_DynLib_H__

#include "core/CorePrereqs.h"

#include <string>

#if defined(ORXONOX_PLATFORM_WINDOWS)
#    define DYNLIB_HANDLE hInstance
#    define DYNLIB_LOAD( a ) LoadLibraryEx( a, nullptr, LOAD_WITH_ALTERED_SEARCH_PATH )
#    define DYNLIB_GETSYM( a, b ) GetProcAddress( a, b )
#    define DYNLIB_UNLOAD( a ) !FreeLibrary( a )

struct HINSTANCE__;
typedef struct HINSTANCE__* hInstance;

#elif defined(ORXONOX_PLATFORM_UNIX)
#    define DYNLIB_HANDLE void*
#    define DYNLIB_LOAD( a ) dlopen( a, RTLD_LAZY | RTLD_GLOBAL)
#    define DYNLIB_GETSYM( a, b ) dlsym( a, b )
#    define DYNLIB_UNLOAD( a ) dlclose( a )
#endif

namespace orxonox
{
    class _CoreExport DynLib
    {
    protected:
        std::string mName;
        std::string dynlibError(void);
    public:
        DynLib( const std::string& name );

        ~DynLib();

        void load();
        void unload();
        const std::string& getName(void) const { return mName; }

        void* getSymbol( const std::string& strName ) const throw();

    protected:

        DYNLIB_HANDLE m_hInst;
    };

}

#endif /* _Core_DynLib_H__ */