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annotate src/loadso/macos/SDL_sysloadso.c @ 1424:7a610f25c12f

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Updated MacOS Classic MPW build
author Sam Lantinga <slouken@libsdl.org>
date Fri, 24 Feb 2006 09:57:14 +0000
parents d910939febfa
children 92947e3a18db
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 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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25 /* System dependent library loading routines */
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26
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27 #include <stdio.h>
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28 #include <string.h>
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29 #define OLDP2C 1
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30 #include <Strings.h>
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31 #include <CodeFragments.h>
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32 #include <Errors.h>
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33
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34 #include "SDL_loadso.h"
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35
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36 void *SDL_LoadObject(const char *sofile)
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37 {
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38 void *handle = NULL;
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39 const char *loaderror = NULL;
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40 CFragConnectionID library_id;
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41 Ptr mainAddr;
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42 Str255 errName;
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43 OSErr error;
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44 char psofile[512];
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45
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46 SDL_strlcpy(psofile, sofile, SDL_arraysize(psofile));
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47 error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch,
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48 kLoadCFrag, &library_id, &mainAddr, errName);
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49 switch (error) {
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50 case noErr:
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51 loaderror = NULL;
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52 break;
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53 case cfragNoLibraryErr:
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54 loaderror = "Library not found";
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55 break;
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56 case cfragUnresolvedErr:
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57 loaderror = "Unabled to resolve symbols";
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58 break;
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59 case cfragNoPrivateMemErr:
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60 case cfragNoClientMemErr:
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61 loaderror = "Out of memory";
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62 break;
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63 default:
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64 loaderror = "Unknown Code Fragment Manager error";
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65 break;
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66 }
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67 if ( loaderror == NULL ) {
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68 handle = (void *)(library_id);
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69 } else {
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70 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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71 }
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72 return(handle);
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73 }
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74
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75 void *SDL_LoadFunction(void *handle, const char *name)
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76 {
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77 void *symbol = NULL;
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78 const char *loaderror = NULL;
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79 CFragSymbolClass class;
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80 CFragConnectionID library_id = (CFragConnectionID)handle;
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81 char pname[512];
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82
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83 SDL_strlcpy(pname, name, SDL_arraysize(pname));
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84 if ( FindSymbol(library_id, C2PStr(pname),
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85 (char **)&symbol, &class) != noErr ) {
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86 loaderror = "Symbol not found";
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87 }
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88
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89 if ( symbol == NULL ) {
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90 SDL_SetError("Failed loading %s: %s", name, loaderror);
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91 }
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92 return(symbol);
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93 }
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94
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95 void SDL_UnloadObject(void *handle)
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96 {
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97 CFragConnectionID library_id;
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98 if ( handle != NULL ) {
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99 library_id = (CFragConnectionID)handle;
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100 CloseConnection(&library_id);
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101 }
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102 }
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103