1 /* 2 * Copyright (c) 2015, Intel Corporation 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this 9 * list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation and/or 13 * other materials provided with the distribution. 14 * 15 * 3. Neither the name of the copyright holder nor the names of its contributors 16 * may be used to endorse or promote products derived from this software without 17 * specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <DynamicLibrary.hpp> 32 33 #include <dlfcn.h> 34 35 #include <stdexcept> 36 37 const std::string DynamicLibrary::_osLibraryPrefix = "lib"; 38 const std::string DynamicLibrary::_osLibrarySuffix = ".so"; 39 40 DynamicLibrary::DynamicLibrary(const std::string &path) : _path(osSanitizePathName(path)) 41 { 42 _handle = dlopen(_path.c_str(), RTLD_LAZY); 43 44 if (_handle == nullptr) { 45 46 const char *dlError = dlerror(); 47 throw std::runtime_error((dlError != NULL) ? dlError : "unknown dlopen error"); 48 } 49 } 50 51 DynamicLibrary::~DynamicLibrary(void) 52 { 53 dlclose(_handle); 54 } 55 56 void *DynamicLibrary::osGetSymbol(const std::string &symbol) const 57 { 58 void *sym = dlsym(_handle, symbol.c_str()); 59 60 if (sym == nullptr) { 61 62 const char *dlError = dlerror(); 63 throw std::runtime_error((dlError != NULL) ? dlError : "unknown dlsym error"); 64 } 65 66 return sym; 67 } 68
