mirror of
https://gitlab.freedesktop.org/mesa/vulkan-wsi-layer.git
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86fa15a8a2
Fixes an issue where there was a chance that an exception would be thrown when out of memory rather than returning an appropriate VkResult code. Additionally introduces a noncopyable utility class that can be used to mark classes that should not have copy semantics Change-Id: I1f84dc9bb1ea96db2a88a90d56adbee78b17c5e3 Signed-off-by: Normunds Rieksts <normunds.rieksts@arm.com>
87 lines
1.9 KiB
C++
87 lines
1.9 KiB
C++
/*
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* Copyright (c) 2021 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/**
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* @file
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*
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* @brief Contains the defintions of file descriptor utilities.
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*/
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#pragma once
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#include <unistd.h>
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#include <utility>
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#include "helpers.hpp"
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namespace util
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{
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/**
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* Manages a POSIX file descriptor.
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*/
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class fd_owner : private noncopyable
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{
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public:
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fd_owner() = default;
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fd_owner(int fd)
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: fd_handle{ fd }
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{
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}
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fd_owner(fd_owner &&rhs)
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{
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*this = std::move(rhs);
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}
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fd_owner &operator=(fd_owner &&rhs)
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{
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std::swap(fd_handle, rhs.fd_handle);
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return *this;
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}
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~fd_owner()
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{
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if (is_valid())
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{
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close(fd_handle);
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}
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}
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int get()
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{
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return fd_handle;
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}
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bool is_valid()
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{
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return fd_handle >= 0;
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}
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private:
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int fd_handle{ -1 };
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};
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} /* namespace util */
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