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@libsdl.org
21 */
22 #include "SDL_config.h"
23
24 #ifdef SDL_LOADSO_MACOS
25
26 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
27 /* System dependent library loading routines */
28
29 #include <stdio.h>
30 #include <string.h>
31 #define OLDP2C 1
32 #include <Strings.h>
33 #include <CodeFragments.h>
34 #include <Errors.h>
35
36 #include "SDL_loadso.h"
37
SDL_LoadObject(const char * sofile)38 void *SDL_LoadObject(const char *sofile)
39 {
40 void *handle = NULL;
41 const char *loaderror = NULL;
42 CFragConnectionID library_id;
43 Ptr mainAddr;
44 Str255 errName;
45 OSErr error;
46 char psofile[512];
47
48 SDL_strlcpy(psofile, sofile, SDL_arraysize(psofile));
49 error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch,
50 kLoadCFrag, &library_id, &mainAddr, errName);
51 switch (error) {
52 case noErr:
53 loaderror = NULL;
54 break;
55 case cfragNoLibraryErr:
56 loaderror = "Library not found";
57 break;
58 case cfragUnresolvedErr:
59 loaderror = "Unabled to resolve symbols";
60 break;
61 case cfragNoPrivateMemErr:
62 case cfragNoClientMemErr:
63 loaderror = "Out of memory";
64 break;
65 default:
66 loaderror = "Unknown Code Fragment Manager error";
67 break;
68 }
69 if ( loaderror == NULL ) {
70 handle = (void *)(library_id);
71 } else {
72 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
73 }
74 return(handle);
75 }
76
SDL_LoadFunction(void * handle,const char * name)77 void *SDL_LoadFunction(void *handle, const char *name)
78 {
79 void *symbol = NULL;
80 const char *loaderror = NULL;
81 CFragSymbolClass class;
82 CFragConnectionID library_id = (CFragConnectionID)handle;
83 char pname[512];
84
85 SDL_strlcpy(pname, name, SDL_arraysize(pname));
86 if ( FindSymbol(library_id, C2PStr(pname),
87 (char **)&symbol, &class) != noErr ) {
88 loaderror = "Symbol not found";
89 }
90
91 if ( symbol == NULL ) {
92 SDL_SetError("Failed loading %s: %s", name, loaderror);
93 }
94 return(symbol);
95 }
96
SDL_UnloadObject(void * handle)97 void SDL_UnloadObject(void *handle)
98 {
99 CFragConnectionID library_id;
100 if ( handle != NULL ) {
101 library_id = (CFragConnectionID)handle;
102 CloseConnection(&library_id);
103 }
104 }
105
106 #endif /* SDL_LOADSO_MACOS */
107