/*
    Copyright (C) 2010 Andreas Baumann <abaumann@yahoo.com>

    This program 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 3 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef WOLF_LOADER_H
#define WOLF_LOADER_H

/**
 * @addtogroup wolf_library Loadable library support
 * @{
 */

/**
 * @file loader.h
 * @brief Portable library loading functions
 * @author Andreas Baumann <abaumann@yahoo.com>
 */

#ifdef __cplusplus
extern "C" {
#endif

#include "port/sys.h"

#include "errors.h"

/* @brief handle representing a shared library
 */
typedef struct wolf_library_t *wolf_library_p;

/**
 * Loads a shared library.
 *
 * @param error     indicates errors while loading the library
 *
 * @return          the libary object
 */
wolf_library_p wolf_library_load( const char *name, wolf_error_t *error );

/**
 * Free up resources used by the library object.
 *
 * @param demon     the library object to free
 *
 * @return          WOLF_OK if library has been unloaded,
 *                  WOLF_ERR_INTERNAL_STATE if the library handle is in an illegal state
 *                  (like double freeing the same library)
 */

wolf_error_t wolf_library_unload( wolf_library_p library );

#if 0

#if !defined _WIN32

#include <dlfcn.h>			/* for dlxxx functions */


#else

#define WIN32_MEAN_AND_LEAN
#include <windows.h>

#endif /* !defined _WIN32 */

#endif

#ifdef __cplusplus
}
#endif

/** @} */ /* @addtogroup wolf_library */

#endif /* ifndef WOLF_LOADER_H */