1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #include "osDynLibrary.h" 17 18 #ifndef _WIN32 19 #include <dlfcn.h> 20 #endif 21 #include <stdio.h> 22 23 namespace osUtils { 24 25 dynLibrary *dynLibrary::open(const char *p_libName) 26 { 27 dynLibrary *lib = new dynLibrary(); 28 if (!lib) { 29 return NULL; 30 } 31 32 #ifdef _WIN32 33 lib->m_lib = LoadLibrary(p_libName); 34 #else // !WIN32 35 lib->m_lib = dlopen(p_libName, RTLD_NOW); 36 #endif 37 38 if (lib->m_lib == NULL) { 39 printf("Failed to load %s\n", p_libName); 40 #ifndef _WIN32 41 printf("error %s\n", dlerror()); //only on linux 42 #endif 43 delete lib; 44 return NULL; 45 } 46 47 return lib; 48 } 49 50 dynLibrary::dynLibrary() : 51 m_lib(NULL) 52 { 53 } 54 55 dynLibrary::~dynLibrary() 56 { 57 if (NULL != m_lib) { 58 #ifdef _WIN32 59 FreeLibrary(m_lib); 60 #else // !WIN32 61 dlclose(m_lib); 62 #endif 63 } 64 } 65 66 dynFuncPtr dynLibrary::findSymbol(const char *p_symName) 67 { 68 if (NULL == m_lib) { 69 return NULL; 70 } 71 72 #ifdef _WIN32 73 return (dynFuncPtr) GetProcAddress(m_lib, p_symName); 74 #else // !WIN32 75 return (dynFuncPtr) dlsym(m_lib, p_symName); 76 #endif 77 } 78 79 } // of namespace osUtils 80
