82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
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/* Copyright (c) 2018-2023 Marcelo Zimbres Silva (mzimbres@gmail.com)
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*
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE.txt)
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*/
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#ifndef BOOST_REDIS_ADAPTER_RESULT_HPP
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#define BOOST_REDIS_ADAPTER_RESULT_HPP
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#include <boost/redis/resp3/type.hpp>
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#include <boost/redis/error.hpp>
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#include <boost/system/result.hpp>
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#include <string>
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namespace boost::redis::adapter
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{
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/** @brief Stores any resp3 error
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* @ingroup high-level-api
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*/
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struct error {
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/// RESP3 error data type.
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resp3::type data_type = resp3::type::invalid;
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/// Diagnostic error message sent by Redis.
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std::string diagnostic;
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};
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/** @brief Compares two error objects for equality
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* @relates error
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*
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* @param a Left hand side error object.
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* @param b Right hand side error object.
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*/
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inline bool operator==(error const& a, error const& b)
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{
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return a.data_type == b.data_type && a.diagnostic == b.diagnostic;
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}
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/** @brief Compares two error objects for difference
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* @relates error
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*
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* @param a Left hand side error object.
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* @param b Right hand side error object.
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*/
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inline bool operator!=(error const& a, error const& b)
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{
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return !(a == b);
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}
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/** @brief Stores response to individual Redis commands
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* @ingroup high-level-api
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*/
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template <class Value>
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using result = system::result<Value, error>;
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BOOST_NORETURN inline void
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throw_exception_from_error(error const & e, boost::source_location const &)
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{
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system::error_code ec;
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switch (e.data_type) {
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case resp3::type::simple_error:
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ec = redis::error::resp3_simple_error;
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break;
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case resp3::type::blob_error:
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ec = redis::error::resp3_blob_error;
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break;
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case resp3::type::null:
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ec = redis::error::resp3_null;
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break;
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default:
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BOOST_ASSERT_MSG(false, "Unexpected data type.");
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}
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throw system::system_error(ec, e.diagnostic);
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}
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} // boost::redis::adapter
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#endif // BOOST_REDIS_ADAPTER_RESULT_HPP
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