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annotate src/loadso/macos/SDL_sysloadso.c @ 1635:92947e3a18db

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Make sure code is only compiled if the appropriate subsystem is enabled
author Sam Lantinga <slouken@libsdl.org>
date Fri, 14 Apr 2006 04:46:47 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
rev   line source
1361
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifdef SDL_LOADSO_MACOS
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25
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26 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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27 /* System dependent library loading routines */
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28
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29 #include <stdio.h>
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30 #include <string.h>
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31 #define OLDP2C 1
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32 #include <Strings.h>
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33 #include <CodeFragments.h>
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34 #include <Errors.h>
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35
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36 #include "SDL_loadso.h"
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37
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38 void *SDL_LoadObject(const char *sofile)
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39 {
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40 void *handle = NULL;
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41 const char *loaderror = NULL;
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42 CFragConnectionID library_id;
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43 Ptr mainAddr;
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44 Str255 errName;
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45 OSErr error;
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46 char psofile[512];
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47
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48 SDL_strlcpy(psofile, sofile, SDL_arraysize(psofile));
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49 error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch,
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50 kLoadCFrag, &library_id, &mainAddr, errName);
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51 switch (error) {
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52 case noErr:
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53 loaderror = NULL;
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54 break;
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55 case cfragNoLibraryErr:
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56 loaderror = "Library not found";
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57 break;
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58 case cfragUnresolvedErr:
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59 loaderror = "Unabled to resolve symbols";
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60 break;
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61 case cfragNoPrivateMemErr:
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62 case cfragNoClientMemErr:
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63 loaderror = "Out of memory";
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64 break;
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65 default:
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66 loaderror = "Unknown Code Fragment Manager error";
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67 break;
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68 }
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69 if ( loaderror == NULL ) {
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70 handle = (void *)(library_id);
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71 } else {
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72 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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73 }
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74 return(handle);
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75 }
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76
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77 void *SDL_LoadFunction(void *handle, const char *name)
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78 {
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79 void *symbol = NULL;
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80 const char *loaderror = NULL;
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81 CFragSymbolClass class;
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82 CFragConnectionID library_id = (CFragConnectionID)handle;
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83 char pname[512];
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84
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85 SDL_strlcpy(pname, name, SDL_arraysize(pname));
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86 if ( FindSymbol(library_id, C2PStr(pname),
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87 (char **)&symbol, &class) != noErr ) {
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88 loaderror = "Symbol not found";
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89 }
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90
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91 if ( symbol == NULL ) {
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92 SDL_SetError("Failed loading %s: %s", name, loaderror);
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93 }
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94 return(symbol);
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95 }
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96
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97 void SDL_UnloadObject(void *handle)
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98 {
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99 CFragConnectionID library_id;
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100 if ( handle != NULL ) {
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101 library_id = (CFragConnectionID)handle;
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102 CloseConnection(&library_id);
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103 }
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104 }
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105
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106 #endif /* SDL_LOADSO_MACOS */