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SDL_sysloadso.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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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
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Sam Lantinga
slouken@libsdl.org
*/
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#include "SDL_config.h"
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#ifdef SDL_LOADSO_OS2
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* System dependent library loading routines */
#include <stdio.h>
#define INCL_DOSERRORS
#define INCL_DOSMODULEMGR
#include <os2.h>
#include "SDL_loadso.h"
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void *
SDL_LoadObject(const char *sofile)
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{
HMODULE handle = NULL;
char buf[512];
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APIRET ulrc = DosLoadModule(buf, sizeof(buf), (char *) sofile, &handle);
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/* Generate an error message if all loads failed */
if ((ulrc != NO_ERROR) || (handle == NULL))
SDL_SetError("Failed loading %s: %s", sofile, buf);
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return ((void *) handle);
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}
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void *
SDL_LoadFunction(void *handle, const char *name)
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{
const char *loaderror = "Unknown error";
void *symbol = NULL;
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APIRET ulrc =
DosQueryProcAddr((HMODULE) handle, 0, (char *) name, &symbol);
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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);
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return (symbol);
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}
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void
SDL_UnloadObject(void *handle)
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{
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if (handle != NULL)
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DosFreeModule((HMODULE) handle);
}
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#endif /* SDL_LOADSO_OS2 */
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/* vi: set ts=4 sw=4 expandtab: */