blocxx
dyldSharedLibraryLoader.cpp
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2* Copyright (C) 2005, Vintela, Inc. All rights reserved.
3* Copyright (C) 2006, Novell, Inc. All rights reserved.
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32
33
37
38#include "blocxx/BLOCXX_config.h"
39#if defined(BLOCXX_USE_DYLD)
42#include "blocxx/Format.hpp"
43
44namespace BLOCXX_NAMESPACE
45{
46
47namespace
48{
49 String COMPONENT_NAME("blocxx.dyldSharedLibraryLoader");
50}
51
52std::ostream& operator<<(std::ostream& o, NSObjectFileImageReturnCode code)
53{
54#define SIMPLE_NSOBJ_CASE(X) case X: o << ""#X
55 switch (code)
56 {
57 SIMPLE_NSOBJ_CASE(NSObjectFileImageFailure);
58 break;
59 SIMPLE_NSOBJ_CASE(NSObjectFileImageSuccess);
60 break;
61 SIMPLE_NSOBJ_CASE(NSObjectFileImageInappropriateFile);
62 break;
63 SIMPLE_NSOBJ_CASE(NSObjectFileImageArch);
64 break;
65 SIMPLE_NSOBJ_CASE(NSObjectFileImageFormat);
66 break;
67 SIMPLE_NSOBJ_CASE(NSObjectFileImageAccess);
68 break;
69 }
70#undef SIMPLE_NSOBJ_CASE
71 return o;
72}
73
76dyldSharedLibraryLoader::loadSharedLibrary(const String& filename) const
77{
78 Logger logger(COMPONENT_NAME);
79 BLOCXX_LOG_DEBUG2(logger, Format("Load request for %1 received.", filename));
80 NSObjectFileImage image = 0;
81 NSObjectFileImageReturnCode dsoerr = NSCreateObjectFileImageFromFile(filename.c_str(), &image);
82 const char* err_msg = NULL;
83 NSModule libhandle = NULL;
84
85 if (dsoerr == NSObjectFileImageSuccess)
86 {
87 libhandle = NSLinkModule(image, filename.c_str(), NSLINKMODULE_OPTION_RETURN_ON_ERROR | NSLINKMODULE_OPTION_PRIVATE);
88 if (!libhandle)
89 {
90 NSLinkEditErrors errors;
91 int errorNumber;
92 const char *fileName;
93 NSLinkEditError(&errors, &errorNumber, &fileName, &err_msg);
94 }
95 NSDestroyObjectFileImage(image);
96 }
97 else
98 {
99 err_msg = "cannot create object file image";
100 BLOCXX_LOG_ERROR(logger, Format("NSCreateObject: %1 failed with error %2",
101 filename, dsoerr));
102 }
103
104
105
106 if (libhandle)
107 {
108 try
109 {
110 return SharedLibraryRef( new dyldSharedLibrary(libhandle,
111 filename));
112 }
113 catch (...)
114 {
115 NSUnLinkModule(libhandle, FALSE);
116 throw;
117 }
118 }
119 else
120 {
121 BLOCXX_LOG_ERROR(logger, Format("dyldSharedLibraryLoader::loadSharedLibrary:"
122 " %1", err_msg));
123 return SharedLibraryRef( 0 );
124 }
125}
129{
130 return SharedLibraryLoaderRef(new dyldSharedLibraryLoader);
131}
133dyldSharedLibraryLoader::~dyldSharedLibraryLoader()
134{
135}
136
137} // end namespace BLOCXX_NAMESPACE
138
139#endif // #if defined(BLOCXX_USE_DYLD)
#define BLOCXX_LOG_DEBUG2(logger, message)
Log message to logger with the Debug2 level.
Definition Logger.hpp:363
#define BLOCXX_LOG_ERROR(logger, message)
Log message to logger with the Error level.
Definition Logger.hpp:433
Logging interface.
Definition Logger.hpp:87
static SharedLibraryLoaderRef createSharedLibraryLoader()
This String class is an abstract data type that represents as NULL terminated string of characters.
Definition String.hpp:67
Taken from RFC 1321.
ostream & operator<<(ostream &ostrm, const Bool &arg)
Definition Bool.cpp:77
IntrusiveReference< SharedLibrary > SharedLibraryRef
IntrusiveReference< SharedLibraryLoader > SharedLibraryLoaderRef