1 /* 2 * Copyright (C) 2015 - 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 <fcntl.h> 20 #include <unistd.h> 21 22 #include <memory> 23 #include <utility> 24 25 namespace android { 26 27 using UniqueFd = std::unique_ptr<int, void (*)(const int *)>; 28 using SharedFd = std::shared_ptr<int>; 29 30 auto MakeUniqueFd(int fd) -> UniqueFd; 31 32 auto MakeSharedFd(int fd) -> SharedFd; 33 34 auto DupFd(SharedFd const &fd) -> int; 35 36 } // namespace android 37