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 This address 61 * is no longer valid after calling SDL_UnloadObject(). 62 */ 63 extern DECLSPEC void * SDLCALL SDL_LoadFunction(void *handle, const char *name); 64 65 /* Unload a shared object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
