src/loadso/dlopen/SDL_loadso.c
changeset 1173 e9cf8c1b4590
child 1312 c9b51268668f
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1172:f69f4d25fb20 1173:e9cf8c1b4590
       
     1 /*
       
     2     SDL - Simple DirectMedia Layer
       
     3     Copyright (C) 1997-2004 Sam Lantinga
       
     4 
       
     5     This library is free software; you can redistribute it and/or
       
     6     modify it under the terms of the GNU Library General Public
       
     7     License as published by the Free Software Foundation; either
       
     8     version 2 of the License, or (at your option) any later version.
       
     9 
       
    10     This library is distributed in the hope that it will be useful,
       
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    13     Library General Public License for more details.
       
    14 
       
    15     You should have received a copy of the GNU Library General Public
       
    16     License along with this library; if not, write to the Free
       
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
       
    18 
       
    19     Sam Lantinga
       
    20     slouken@libsdl.org
       
    21 */
       
    22 
       
    23 #ifdef SAVE_RCSID
       
    24 static char rcsid =
       
    25  "@(#) $Id$";
       
    26 #endif
       
    27 
       
    28 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
       
    29 /* System dependent library loading routines                           */
       
    30 
       
    31 #if !SDL_INTERNAL_BUILDING_LOADSO
       
    32 #error Do not compile directly...compile src/SDL_loadso.c instead!
       
    33 #endif
       
    34 
       
    35 #if !defined(USE_DLOPEN)
       
    36 #error Compiling for the wrong platform?
       
    37 #endif
       
    38 
       
    39 #include <stdio.h>
       
    40 #include <dlfcn.h>
       
    41 
       
    42 #include "SDL_types.h"
       
    43 #include "SDL_error.h"
       
    44 #include "SDL_loadso.h"
       
    45 
       
    46 void *SDL_LoadObject(const char *sofile)
       
    47 {
       
    48 	void *handle = dlopen(sofile, RTLD_NOW);
       
    49 	const char *loaderror = (char *)dlerror();
       
    50 	if ( handle == NULL ) {
       
    51 		SDL_SetError("Failed loading %s: %s", sofile, loaderror);
       
    52 	}
       
    53 	return(handle);
       
    54 }
       
    55 
       
    56 void *SDL_LoadFunction(void *handle, const char *name)
       
    57 {
       
    58 	void *symbol = dlsym(handle, name);
       
    59 	if ( symbol == NULL ) {
       
    60 		SDL_SetError("Failed loading %s: %s", name, (const char *)dlerror());
       
    61 	}
       
    62 	return(symbol);
       
    63 }
       
    64 
       
    65 void SDL_UnloadObject(void *handle)
       
    66 {
       
    67 	if ( handle != NULL ) {
       
    68 		dlclose(handle);
       
    69 	}
       
    70 }
       
    71