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80 lines
2.8 KiB
C++
80 lines
2.8 KiB
C++
/* vim:set ts=2 sw=2 sts=2 et: */
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/**
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* \author Marcus Holland-Moritz (github@mhxnet.de)
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* \copyright Copyright (c) Marcus Holland-Moritz
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*
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* This file is part of dwarfs.
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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 deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* 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
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* all 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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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#include <chrono>
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#include <filesystem>
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#include <memory>
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#include <optional>
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#include <span>
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#include <string>
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#include <system_error>
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#include <thread>
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#include <dwarfs/file_stat.h>
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namespace dwarfs {
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class mmif;
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class dir_reader {
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public:
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virtual ~dir_reader() = default;
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virtual bool read(std::filesystem::path& name) = 0;
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};
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class os_access {
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public:
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virtual ~os_access() = default;
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virtual std::unique_ptr<dir_reader>
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opendir(std::filesystem::path const& path) const = 0;
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virtual file_stat symlink_info(std::filesystem::path const& path) const = 0;
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virtual std::filesystem::path
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read_symlink(std::filesystem::path const& path) const = 0;
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virtual std::unique_ptr<mmif>
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map_file(std::filesystem::path const& path) const = 0;
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virtual std::unique_ptr<mmif>
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map_file(std::filesystem::path const& path, size_t size) const = 0;
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virtual int access(std::filesystem::path const& path, int mode) const = 0;
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virtual std::filesystem::path
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canonical(std::filesystem::path const& path) const = 0;
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virtual std::filesystem::path current_path() const = 0;
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virtual std::optional<std::string> getenv(std::string_view name) const = 0;
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virtual void
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thread_set_affinity(std::thread::id tid, std::span<int const> cpus,
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std::error_code& ec) const = 0;
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virtual std::chrono::nanoseconds
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thread_get_cpu_time(std::thread::id tid, std::error_code& ec) const = 0;
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virtual std::filesystem::path
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find_executable(std::filesystem::path const& name) const = 0;
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};
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} // namespace dwarfs
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