1 /* 2 * Copyright (C) 2023 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 17 #pragma once 18 19 #include <functional> 20 #include <memory> 21 #include <optional> 22 23 namespace cuttlefish { 24 25 class Lib { 26 public: 27 static std::optional<Lib> Load(const char* name); 28 29 Lib() = default; 30 31 Lib(const Lib&) = delete; 32 Lib& operator=(const Lib&) = delete; 33 34 Lib(Lib&&) = default; 35 Lib& operator=(Lib&&) = default; 36 37 using FunctionPtr = void (*)(void); 38 39 FunctionPtr GetSymbol(const char* name); 40 41 private: 42 struct LibraryCloser { 43 public: 44 void operator()(void* library); 45 }; 46 47 using ManagedLibrary = std::unique_ptr<void, LibraryCloser>; 48 49 ManagedLibrary lib_; 50 }; 51 52 } // namespace cuttlefish 53