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annotate src/loadso/macos/SDL_loadso.c @ 1312:c9b51268668f

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Updated copyright information and removed rcs id lines (problematic in branch merges) I batch edited these files, so please let me know if I've accidentally removed anybody's credit here.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 01 Feb 2006 06:32:25 +0000
parents e9cf8c1b4590
children 3692456e7b0f
rev   line source
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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
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23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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24 /* System dependent library loading routines */
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25
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26 #if !SDL_INTERNAL_BUILDING_LOADSO
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27 #error Do not compile directly...compile src/SDL_loadso.c instead!
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28 #endif
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29
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30 #if !defined(macintosh)
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31 #error Compiling for the wrong platform?
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32 #endif
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33
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34 #include <stdio.h>
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35 #include <string.h>
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36 #define OLDP2C 1
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37 #include <Strings.h>
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38 #include <CodeFragments.h>
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39 #include <Errors.h>
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40
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41 #include "SDL_types.h"
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42 #include "SDL_error.h"
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43 #include "SDL_loadso.h"
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44
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45 void *SDL_LoadObject(const char *sofile)
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46 {
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47 void *handle = NULL;
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48 const char *loaderror = NULL;
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49 CFragConnectionID library_id;
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50 Ptr mainAddr;
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51 Str255 errName;
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52 OSErr error;
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53 char psofile[512];
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54
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55 strncpy(psofile, sofile, SDL_TABLESIZE(psofile));
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56 psofile[SDL_TABLESIZE(psofile)-1] = '\0';
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57 error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch,
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58 kLoadCFrag, &library_id, &mainAddr, errName);
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59 switch (error) {
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60 case noErr:
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61 loaderror = NULL;
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62 break;
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63 case cfragNoLibraryErr:
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64 loaderror = "Library not found";
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65 break;
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66 case cfragUnresolvedErr:
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67 loaderror = "Unabled to resolve symbols";
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68 break;
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69 case cfragNoPrivateMemErr:
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70 case cfragNoClientMemErr:
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71 loaderror = "Out of memory";
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72 break;
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73 default:
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74 loaderror = "Unknown Code Fragment Manager error";
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75 break;
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76 }
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77 if ( loaderror == NULL ) {
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78 handle = (void *)(library_id);
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79 } else {
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80 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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81 }
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82 return(handle);
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83 }
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84
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85 void *SDL_LoadFunction(void *handle, const char *name)
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86 {
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87 void *symbol = NULL;
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88 const char *loaderror = NULL;
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89 CFragSymbolClass class;
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90 CFragConnectionID library_id = (CFragConnectionID)handle;
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91 char pname[512];
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92
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93 strncpy(pname, name, SDL_TABLESIZE(pname));
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94 pname[SDL_TABLESIZE(pname)-1] = '\0';
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95 if ( FindSymbol(library_id, C2PStr(pname),
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96 (char **)&symbol, &class) != noErr ) {
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97 loaderror = "Symbol not found";
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98 }
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99
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100 if ( symbol == NULL ) {
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101 SDL_SetError("Failed loading %s: %s", name, loaderror);
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102 }
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103 return(symbol);
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104 }
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105
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106 void SDL_UnloadObject(void *handle)
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107 {
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108 CFragConnectionID library_id;
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109 if ( handle != NULL ) {
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110 library_id = (CFragConnectionID)handle;
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111 CloseConnection(&library_id);
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112 }
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113 }
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114