mysql/detail/pipeline.hpp

0001 //
0002 // Copyright (c) 2019-2024 Ruben Perez Hidalgo (rubenperez038 at gmail dot com)
0003 //
0004 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0005 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 //
0007
0008 #ifndef BOOST_MYSQL_DETAIL_PIPELINE_HPP
0009 #define BOOST_MYSQL_DETAIL_PIPELINE_HPP
0010
0011 #include <boost/mysql/character_set.hpp>
0012
0013 #include <boost/mysql/detail/resultset_encoding.hpp>
0014
0015 #include <cstddef>
0016 #include <cstdint>
0017
0018 namespace boost {
0019 namespace mysql {
0020 namespace detail {
0021
0022 class execution_processor;
0023
0024 enum class pipeline_stage_kind
0025 {
0026     execute,
0027     prepare_statement,
0028     close_statement,
0029     reset_connection,
0030     set_character_set,
0031     ping,
0032 };
0033
0034 struct pipeline_request_stage
0035 {
0036     pipeline_stage_kind kind;
0037     std::uint8_t seqnum;
0038     union stage_specific_t
0039     {
0040         std::nullptr_t nothing;
0041         resultset_encoding enc;
0042         character_set charset;
0043
0044         stage_specific_t() noexcept : nothing() {}
0045         stage_specific_t(resultset_encoding v) noexcept : enc(v) {}
0046         stage_specific_t(character_set v) noexcept : charset(v) {}
0047     } stage_specific;
0048 };
0049
0050 }  // namespace detail
0051 }  // namespace mysql
0052 }  // namespace boost
0053
0054 #endif