blocxx
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00001 /******************************************************************************* 00002 * Copyright (C) 2005, Vintela, Inc. All rights reserved. 00003 * Copyright (C) 2006, Novell, Inc. All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * 00008 * * Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions and the following disclaimer. 00010 * * Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * * Neither the name of 00014 * Vintela, Inc., 00015 * nor Novell, Inc., 00016 * nor the names of its contributors or employees may be used to 00017 * endorse or promote products derived from this software without 00018 * specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00021 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00022 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00023 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00024 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00025 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00026 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00029 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00030 * POSSIBILITY OF SUCH DAMAGE. 00031 *******************************************************************************/ 00032 00033 00038 #include "blocxx/BLOCXX_config.h" 00039 #if defined(BLOCXX_USE_DYLD) 00040 #include "blocxx/dyldSharedLibrary.hpp" 00041 00042 #include <mach-o/dyld.h> 00043 00044 namespace BLOCXX_NAMESPACE 00045 { 00046 00047 dyldSharedLibrary::dyldSharedLibrary(NSModule libhandle, const String& libName) 00048 : SharedLibrary() 00049 , m_libhandle( libhandle ) 00050 , m_libName(libName) 00051 { 00052 } 00053 00054 dyldSharedLibrary::~dyldSharedLibrary() 00055 { 00056 NSUnLinkModule(m_libhandle, NSUNLINKMODULE_OPTION_NONE); 00057 } 00058 bool dyldSharedLibrary::doGetFunctionPointer(const String& functionName, 00059 void** fp) const 00060 { 00061 void *retval = NULL; 00062 NSSymbol symbol; 00063 String arg = '_' + functionName; 00064 symbol = NSLookupSymbolInModule(m_libhandle, arg.c_str()); 00065 if (symbol == NULL) 00066 { 00067 return false; 00068 } 00069 retval = NSAddressOfSymbol(symbol); 00070 if (retval == NULL) 00071 { 00072 return false; 00073 } 00074 *fp = retval; 00075 return true; 00076 } 00077 00078 } // end namespace BLOCXX_NAMESPACE 00079 00080 #endif // BLOCXX_USE_DYLD