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54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
/**
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* \file libimp/system.h
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* \author mutouyun (orz@orzz.org)
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* \brief Isolation and encapsulation of system APIs
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* \date 2022-08-07
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*/
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#pragma once
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#include <string>
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#include <ostream> // std::ostream
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#include <cstdint>
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#include "libimp/def.h"
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#include "libimp/export.h"
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#include "libimp/error.h"
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#include "libimp/result.h"
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LIBIMP_NAMESPACE_BEG_
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namespace sys {
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/**
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* \brief Get/Set the system error number
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*/
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LIBIMP_EXPORT error_code_t error_no() noexcept;
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LIBIMP_EXPORT void error_no(error_code_t const &) noexcept;
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/**
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* \brief Gets a text description of the system error
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*/
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LIBIMP_EXPORT std::string error_str(error_code_t const &) noexcept;
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/**
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* \brief Identifies the operating system error category.
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* \see https://en.cppreference.com/w/cpp/error/system_category
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*/
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LIBIMP_EXPORT error_category const &category() noexcept;
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/**
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* \brief A platform-dependent error code.
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* \see https://en.cppreference.com/w/cpp/error/error_code
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*/
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LIBIMP_EXPORT error_code error() noexcept;
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/**
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* \brief Get system configuration information at run time
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*/
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enum class info : std::int32_t {
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page_size,
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};
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LIBIMP_EXPORT result<std::int64_t> conf(info) noexcept;
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} // namespace sys
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LIBIMP_NAMESPACE_END_
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