blocxx
dyldSharedLibrary.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
38#include "blocxx/BLOCXX_config.h"
39#if defined(BLOCXX_USE_DYLD)
41
42#include <mach-o/dyld.h>
43
44namespace BLOCXX_NAMESPACE
45{
46
47dyldSharedLibrary::dyldSharedLibrary(NSModule libhandle, const String& libName)
48 : SharedLibrary()
49 , m_libhandle( libhandle )
50 , m_libName(libName)
51{
52}
53
54dyldSharedLibrary::~dyldSharedLibrary()
55{
56 NSUnLinkModule(m_libhandle, NSUNLINKMODULE_OPTION_NONE);
57}
58bool dyldSharedLibrary::doGetFunctionPointer(const String& functionName,
59 void** fp) const
60{
61 void *retval = NULL;
62 NSSymbol symbol;
63 String arg = '_' + functionName;
64 symbol = NSLookupSymbolInModule(m_libhandle, arg.c_str());
65 if (symbol == NULL)
66 {
67 return false;
68 }
69 retval = NSAddressOfSymbol(symbol);
70 if (retval == NULL)
71 {
72 return false;
73 }
74 *fp = retval;
75 return true;
76}
77
78} // end namespace BLOCXX_NAMESPACE
79
80#endif // BLOCXX_USE_DYLD
Taken from RFC 1321.