00001 /******************************************************************************* 00002 * Copyright (C) 2001-2004 Vintela, Inc. All rights reserved. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions are met: 00006 * 00007 * - Redistributions of source code must retain the above copyright notice, 00008 * this list of conditions and the following disclaimer. 00009 * 00010 * - Redistributions in binary form must reproduce the above copyright notice, 00011 * this list of conditions and the following disclaimer in the documentation 00012 * and/or other materials provided with the distribution. 00013 * 00014 * - Neither the name of Vintela, Inc. nor the names of its 00015 * contributors may be used to endorse or promote products derived from this 00016 * software without specific prior written permission. 00017 * 00018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' 00019 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00020 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00021 * ARE DISCLAIMED. IN NO EVENT SHALL Vintela, Inc. OR THE CONTRIBUTORS 00022 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00023 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00024 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00025 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00026 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00027 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00028 * POSSIBILITY OF SUCH DAMAGE. 00029 *******************************************************************************/ 00030 00035 #include "OW_config.h" 00036 #if defined(OW_USE_DYLD) 00037 #include "OW_dyldSharedLibrary.hpp" 00038 00039 #include <mach-o/dyld.h> 00040 00041 namespace OW_NAMESPACE 00042 { 00043 00044 dyldSharedLibrary::~dyldSharedLibrary() 00045 { 00046 NSUnLinkModule(m_libhandle, NSUNLINKMODULE_OPTION_NONE); 00047 } 00048 bool dyldSharedLibrary::doGetFunctionPointer(const String& functionName, 00049 void** fp) const 00050 { 00051 void *retval = NULL; 00052 NSSymbol symbol; 00053 String arg = '_' + functionName; 00054 symbol = NSLookupSymbolInModule(m_libhandle, arg.c_str()); 00055 if (symbol == NULL) 00056 { 00057 return false; 00058 } 00059 retval = NSAddressOfSymbol(symbol); 00060 if (retval == NULL) 00061 { 00062 return false; 00063 } 00064 *fp = retval; 00065 return true; 00066 } 00067 00068 } // end namespace OW_NAMESPACE 00069 00070 #endif // OW_USE_DYLD