e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 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@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | #ifdef SDL_LOADSO_OS2 |
25 | |
26 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
27 | /* System dependent library loading routines */ |
28 | |
29 | #include <stdio.h> |
30 | #define INCL_DOSERRORS |
31 | #define INCL_DOSMODULEMGR |
32 | #include <os2.h> |
33 | |
34 | #include "SDL_loadso.h" |
35 | |
36 | void *SDL_LoadObject(const char *sofile) |
37 | { |
38 | HMODULE handle = NULL; |
39 | char buf[512]; |
40 | APIRET ulrc = DosLoadModule(buf, sizeof (buf), (char *) sofile, &handle); |
41 | |
42 | /* Generate an error message if all loads failed */ |
43 | if ((ulrc != NO_ERROR) || (handle == NULL)) |
44 | SDL_SetError("Failed loading %s: %s", sofile, buf); |
45 | |
46 | return((void *) handle); |
47 | } |
48 | |
49 | void *SDL_LoadFunction(void *handle, const char *name) |
50 | { |
51 | const char *loaderror = "Unknown error"; |
52 | void *symbol = NULL; |
53 | APIRET ulrc = DosQueryProcAddr((HMODULE)handle, 0, (char *)name, &symbol); |
54 | if (ulrc == ERROR_INVALID_HANDLE) |
55 | loaderror = "Invalid module handle"; |
56 | else if (ulrc == ERROR_INVALID_NAME) |
57 | loaderror = "Symbol not found"; |
58 | |
59 | if (symbol == NULL) |
60 | SDL_SetError("Failed loading %s: %s", name, loaderror); |
61 | |
62 | return(symbol); |
63 | } |
64 | |
65 | void SDL_UnloadObject(void *handle) |
66 | { |
67 | if ( handle != NULL ) |
68 | DosFreeModule((HMODULE) handle); |
69 | } |
70 | |
71 | #endif /* SDL_LOADSO_OS2 */ |