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      1 /*
      2     SDL - Simple DirectMedia Layer
      3     Copyright (C) 1997-2006 Sam Lantinga
      4 
      5     This library is free software; you can redistribute it and/or
      6     modify it under the terms of the GNU Lesser General Public
      7     License as published by the Free Software Foundation; either
      8     version 2.1 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     Lesser General Public License for more details.
     14 
     15     You should have received a copy of the GNU Lesser General Public
     16     License along with this library; if not, write to the Free Software
     17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     18 
     19     Sam Lantinga
     20     slouken (at) libsdl.org
     21 */
     22 
     23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
     24 /* System dependent library loading routines                           */
     25 
     26 /* Some things to keep in mind:
     27    - These functions only work on C function names.  Other languages may
     28      have name mangling and intrinsic language support that varies from
     29      compiler to compiler.
     30    - Make sure you declare your function pointers with the same calling
     31      convention as the actual library function.  Your code will crash
     32      mysteriously if you do not do this.
     33    - Avoid namespace collisions.  If you load a symbol from the library,
     34      it is not defined whether or not it goes into the global symbol
     35      namespace for the application.  If it does and it conflicts with
     36      symbols in your code or other shared libraries, you will not get
     37      the results you expect. :)
     38 */
     39 
     40 
     41 #ifndef _SDL_loadso_h
     42 #define _SDL_loadso_h
     43 
     44 #include "SDL_stdinc.h"
     45 #include "SDL_error.h"
     46 
     47 #include "begin_code.h"
     48 /* Set up for C function definitions, even when using C++ */
     49 #ifdef __cplusplus
     50 extern "C" {
     51 #endif
     52 
     53 /* This function dynamically loads a shared object and returns a pointer
     54  * to the object handle (or NULL if there was an error).
     55  * The 'sofile' parameter is a system dependent name of the object file.
     56  */
     57 extern DECLSPEC void * SDLCALL SDL_LoadObject(const char *sofile);
     58 
     59 /* Given an object handle, this function looks up the address of the
     60  * named function in the shared object and returns it.  This address
     61  * is no longer valid after calling SDL_UnloadObject().
     62  */
     63 extern DECLSPEC void * SDLCALL SDL_LoadFunction(void *handle, const char *name);
     64 
     65 /* Unload a shared object from memory */
     66 extern DECLSPEC void SDLCALL SDL_UnloadObject(void *handle);
     67 
     68 /* Ends C function definitions when using C++ */
     69 #ifdef __cplusplus
     70 }
     71 #endif
     72 #include "close_code.h"
     73 
     74 #endif /* _SDL_loadso_h */
     75