author | Sam Lantinga <slouken@libsdl.org> |
Wed, 10 Apr 2002 17:12:32 +0000 | |
changeset 336 | 745873ea091f |
parent 297 | f6ffac90895c |
child 651 | 35ff0890ac4e |
permissions | -rw-r--r-- |
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/* |
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SDL - Simple DirectMedia Layer |
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Updated copyright information for 2002
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Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
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|
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Library General Public |
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7 |
License as published by the Free Software Foundation; either |
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8 |
version 2 of the License, or (at your option) any later version. |
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|
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 |
Library General Public License for more details. |
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|
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You should have received a copy of the GNU Library General Public |
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16 |
License along with this library; if not, write to the Free |
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17 |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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|
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Sam Lantinga |
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slouken@libsdl.org |
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*/ |
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|
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23 |
#ifdef SAVE_RCSID |
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static char rcsid = |
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"@(#) $Id$"; |
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#endif |
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|
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
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/* System dependent library loading routines */ |
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|
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#include <stdio.h> |
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#if defined(USE_DLOPEN) |
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# include <dlfcn.h> |
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#elif defined(WIN32) |
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# include <windows.h> |
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#elif defined(__BEOS__) |
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# include <be/kernel/image.h> |
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#elif defined(macintosh) |
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# include <string.h> |
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# include <Strings.h> |
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# include <CodeFragments.h> |
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# include <Errors.h> |
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#else |
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44 |
/*#error Unsupported dynamic link environment*/ |
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#endif /* system type */ |
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#include "SDL_types.h" |
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#include "SDL_error.h" |
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49 |
#include "SDL_loadso.h" |
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void *SDL_LoadObject(const char *sofile) |
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{ |
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53 |
void *handle = NULL; |
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54 |
const char *loaderror = "SDL_LoadObject() not implemented"; |
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55 |
#if defined(USE_DLOPEN) |
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/* * */ |
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57 |
handle = dlopen(sofile, RTLD_NOW); |
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loaderror = (char *)dlerror(); |
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#elif defined(WIN32) |
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/* * */ |
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char errbuf[512]; |
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handle = (void *)LoadLibrary(sofile); |
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64 |
|
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/* Generate an error message if all loads failed */ |
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66 |
if ( handle == NULL ) { |
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67 |
FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
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68 |
FORMAT_MESSAGE_FROM_SYSTEM), |
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69 |
NULL, GetLastError(), |
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70 |
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
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71 |
errbuf, SDL_TABLESIZE(errbuf), NULL); |
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72 |
loaderror = errbuf; |
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73 |
} |
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74 |
#elif defined(__BEOS__) |
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75 |
/* * */ |
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76 |
image_id library_id; |
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|
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library_id = load_add_on(sofile); |
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79 |
if ( library_id == B_ERROR ) { |
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80 |
loaderror = "BeOS error"; |
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81 |
} else { |
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82 |
handle = (void *)(library_id); |
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83 |
} |
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84 |
#elif defined(macintosh) |
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85 |
/* * */ |
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86 |
CFragConnectionID library_id; |
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87 |
Ptr mainAddr; |
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88 |
Str255 errName; |
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89 |
OSErr error; |
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90 |
char psofile[512]; |
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91 |
|
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92 |
strncpy(psofile, sofile, SDL_TABLESIZE(psofile)); |
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93 |
psofile[SDL_TABLESIZE(psofile)-1] = '\0'; |
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94 |
error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch, |
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95 |
kLoadCFrag, &library_id, &mainAddr, errName); |
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96 |
switch (error) { |
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97 |
case noErr: |
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98 |
break; |
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99 |
case cfragNoLibraryErr: |
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100 |
loaderror = "Library not found"; |
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101 |
break; |
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102 |
case cfragUnresolvedErr: |
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103 |
loaderror = "Unabled to resolve symbols"; |
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104 |
break; |
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105 |
case cfragNoPrivateMemErr: |
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106 |
case cfragNoClientMemErr: |
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107 |
loaderror = "Out of memory"; |
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108 |
break; |
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109 |
default: |
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110 |
loaderror = "Unknown Code Fragment Manager error"; |
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111 |
break; |
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112 |
} |
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113 |
if ( loaderror == NULL ) { |
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114 |
handle = (void *)(library_id); |
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115 |
} |
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116 |
#endif /* system type */ |
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117 |
|
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118 |
if ( handle == NULL ) { |
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SDL_SetError("Failed loading %s: %s", sofile, loaderror); |
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120 |
} |
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return(handle); |
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122 |
} |
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123 |
|
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124 |
void *SDL_LoadFunction(void *handle, const char *name) |
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125 |
{ |
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126 |
void *symbol = NULL; |
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const char *loaderror = "SDL_LoadFunction not implemented"; |
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128 |
#if defined(USE_DLOPEN) |
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129 |
/* * */ |
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symbol = dlsym(handle, name); |
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131 |
if ( symbol == NULL ) { |
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132 |
loaderror = (char *)dlerror(); |
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133 |
} |
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134 |
#elif defined(WIN32) |
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135 |
/* * */ |
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136 |
char errbuf[512]; |
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137 |
|
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138 |
symbol = (void *)GetProcAddress((HMODULE)handle, name); |
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139 |
if ( symbol == NULL ) { |
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140 |
FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
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141 |
FORMAT_MESSAGE_FROM_SYSTEM), |
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142 |
NULL, GetLastError(), |
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
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144 |
errbuf, SDL_TABLESIZE(errbuf), NULL); |
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loaderror = errbuf; |
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146 |
} |
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#elif defined(__BEOS__) |
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148 |
/* * */ |
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149 |
image_id library_id = (image_id)handle; |
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if ( get_image_symbol(library_id, |
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151 |
name, B_SYMBOL_TYPE_TEXT, &symbol) != B_NO_ERROR ) { |
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loaderror = "Symbol not found"; |
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153 |
} |
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154 |
#elif defined(macintosh) |
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155 |
/* * */ |
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156 |
CFragSymbolClass class; |
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CFragConnectionID library_id = (CFragConnectionID)handle; |
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158 |
char pname[512]; |
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159 |
|
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160 |
strncpy(pname, name, SDL_TABLESIZE(pname)); |
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161 |
pname[SDL_TABLESIZE(pname)-1] = '\0'; |
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162 |
if ( FindSymbol(library_id, C2PStr(pname), |
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163 |
(char **)&symbol, &class) != noErr ) { |
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164 |
loaderror = "Symbol not found"; |
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165 |
} |
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166 |
#endif /* system type */ |
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167 |
|
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168 |
if ( symbol == NULL ) { |
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169 |
SDL_SetError("Failed loading %s: %s", name, loaderror); |
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170 |
} |
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171 |
return(symbol); |
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|
172 |
} |
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|
173 |
|
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174 |
void SDL_UnloadObject(void *handle) |
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175 |
{ |
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176 |
#if defined(__BEOS__) |
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177 |
image_id library_id; |
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178 |
#endif |
294
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179 |
if ( handle == NULL ) { |
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180 |
return; |
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|
181 |
} |
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|
182 |
#if defined(USE_DLOPEN) |
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|
183 |
/* * */ |
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|
184 |
dlclose(handle); |
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185 |
#elif defined(WIN32) |
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|
186 |
/* * */ |
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|
187 |
FreeLibrary((HMODULE)handle); |
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|
188 |
#elif defined(__BEOS__) |
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189 |
/* * */ |
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190 |
library_id = (image_id)handle; |
294
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|
191 |
unload_add_on(library_id); |
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|
192 |
#elif defined(macintosh) |
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|
193 |
/* * */ |
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|
194 |
CFragConnectionID library_id = (CFragConnectionID)handle; |
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|
195 |
CloseConnection(library_id); |
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|
196 |
#endif /* system type */ |
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|
197 |
} |