include/boost/corosio/error.hpp
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boost::corosio::make_error_code(boost::corosio::error)
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| Line | TLA | Hits | Source Code |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2026 Michael Vandeberg | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/cppalliance/corosio | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_COROSIO_ERROR_HPP | ||
| 11 | #define BOOST_COROSIO_ERROR_HPP | ||
| 12 | |||
| 13 | #include <boost/corosio/detail/config.hpp> | ||
| 14 | |||
| 15 | #include <string> | ||
| 16 | #include <system_error> | ||
| 17 | #include <type_traits> | ||
| 18 | |||
| 19 | namespace boost::corosio { | ||
| 20 | |||
| 21 | /** Identifies failures corosio detects itself. | ||
| 22 | |||
| 23 | Codes the operating system reports keep their system category. | ||
| 24 | */ | ||
| 25 | enum class error | ||
| 26 | { | ||
| 27 | /// The target object already holds an open handle. | ||
| 28 | already_open = 1 | ||
| 29 | }; | ||
| 30 | |||
| 31 | } // namespace boost::corosio | ||
| 32 | |||
| 33 | namespace std { | ||
| 34 | template<> | ||
| 35 | struct is_error_code_enum<::boost::corosio::error> : std::true_type | ||
| 36 | {}; | ||
| 37 | } // namespace std | ||
| 38 | |||
| 39 | namespace boost::corosio { | ||
| 40 | namespace detail { | ||
| 41 | |||
| 42 | struct BOOST_COROSIO_SYMBOL_VISIBLE error_cat_type : std::error_category | ||
| 43 | { | ||
| 44 | BOOST_COROSIO_DECL char const* name() const noexcept override; | ||
| 45 | BOOST_COROSIO_DECL std::string message(int) const override; | ||
| 46 | constexpr error_cat_type() noexcept = default; | ||
| 47 | }; | ||
| 48 | |||
| 49 | BOOST_COROSIO_DECL extern error_cat_type error_cat; | ||
| 50 | |||
| 51 | } // namespace detail | ||
| 52 | |||
| 53 | /** Create an `std::error_code` from a corosio error value. | ||
| 54 | |||
| 55 | @param ev The error value. | ||
| 56 | @return An `std::error_code` in corosio's category. | ||
| 57 | */ | ||
| 58 | inline std::error_code | ||
| 59 | 175x | make_error_code(error ev) noexcept | |
| 60 | { | ||
| 61 | 175x | return std::error_code{static_cast<int>(ev), detail::error_cat}; | |
| 62 | } | ||
| 63 | |||
| 64 | } // namespace boost::corosio | ||
| 65 | |||
| 66 | #endif | ||
| 67 |