dyldSharedLibrary.cpp

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#include "blocxx/BLOCXX_config.h"
#if defined(BLOCXX_USE_DYLD)
#include "blocxx/dyldSharedLibrary.hpp"
 
#include <mach-o/dyld.h>
 
namespace BLOCXX_NAMESPACE
{
 
dyldSharedLibrary::dyldSharedLibrary(NSModule libhandle, const String& libName)
   : SharedLibrary()
   , m_libhandle( libhandle )
   , m_libName(libName)
{
}
 
dyldSharedLibrary::~dyldSharedLibrary()
{
   NSUnLinkModule(m_libhandle, NSUNLINKMODULE_OPTION_NONE);
}
bool dyldSharedLibrary::doGetFunctionPointer(const String& functionName,
               void** fp) const
{
   void *retval = NULL;
   NSSymbol symbol;
   String arg = '_' + functionName;
   symbol = NSLookupSymbolInModule(m_libhandle, arg.c_str());  
   if (symbol == NULL) 
   {
      return false;
   }
   retval = NSAddressOfSymbol(symbol);
   if (retval == NULL) 
   {
      return false;
   }
   *fp = retval;
   return true;
}
 
} // end namespace BLOCXX_NAMESPACE
 
#endif // BLOCXX_USE_DYLD