63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License Version 2.0 with LLVM Exceptions
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* https://llvm.org/LICENSE.txt
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <utility>
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#include <unifex/detail/prologue.hpp>
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namespace unifex {
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namespace linuxos {
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class safe_file_descriptor {
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public:
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safe_file_descriptor() noexcept : fd_(-1) {}
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explicit safe_file_descriptor(int fd) noexcept : fd_(fd) {}
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safe_file_descriptor(safe_file_descriptor&& other) noexcept
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: fd_(std::exchange(other.fd_, -1)) {}
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~safe_file_descriptor() {
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if (valid()) {
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close();
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}
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}
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safe_file_descriptor& operator=(safe_file_descriptor other) noexcept {
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std::swap(fd_, other.fd_);
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return *this;
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}
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bool valid() const noexcept {
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return fd_ >= 0;
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}
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int get() const noexcept {
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return fd_;
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}
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void close() noexcept;
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private:
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int fd_;
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};
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} // namespace linuxos
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} // namespace unifex
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#include <unifex/detail/epilogue.hpp>
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