/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997-2006 Sam Lantinga

This library 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 2.1 of the License, or (at your option) any later version.

This library 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 library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Sam Lantinga

slouken@libsdl.org

*/

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/* System dependent library loading routines */

#include <stdio.h>

#define INCL_DOSERRORS

#define INCL_DOSMODULEMGR

#include <os2.h>

#include "SDL_loadso.h"

void *SDL_LoadObject(const char *sofile)

{

HMODULE handle = NULL;

char buf[512];

APIRET ulrc = DosLoadModule(buf, sizeof (buf), (char *) sofile, &handle);

/* Generate an error message if all loads failed */

if ((ulrc != NO_ERROR) || (handle == NULL))

SDL_SetError("Failed loading %s: %s", sofile, buf);

return((void *) handle);

}

void *SDL_LoadFunction(void *handle, const char *name)

{

const char *loaderror = "Unknown error";

void *symbol = NULL;

APIRET ulrc = DosQueryProcAddr((HMODULE)handle, 0, (char *)name, &symbol);

if (ulrc == ERROR_INVALID_HANDLE)

loaderror = "Invalid module handle";

else if (ulrc == ERROR_INVALID_NAME)

loaderror = "Symbol not found";

if (symbol == NULL)

SDL_SetError("Failed loading %s: %s", name, loaderror);

return(symbol);

}

void SDL_UnloadObject(void *handle)

{

if ( handle != NULL )

DosFreeModule((HMODULE) handle);

}