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cpp-thirdparty/linx64/include/boost/mysql/impl/internal/protocol/constants.hpp
2023-11-24 12:56:13 -06:00

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//
// Copyright (c) 2019-2023 Ruben Perez Hidalgo (rubenperez038 at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_MYSQL_IMPL_INTERNAL_PROTOCOL_CONSTANTS_HPP
#define BOOST_MYSQL_IMPL_INTERNAL_PROTOCOL_CONSTANTS_HPP
#include <cstddef>
#include <cstdint>
namespace boost {
namespace mysql {
namespace detail {
constexpr std::size_t MAX_PACKET_SIZE = 0xffffff;
constexpr std::size_t HEADER_SIZE = 4;
// The binary collation number, used to distinguish blobs from strings
constexpr std::uint16_t binary_collation = 63;
// Prepared statements
namespace cursor_types {
constexpr std::uint8_t no_cursor = 0;
constexpr std::uint8_t read_only = 1;
constexpr std::uint8_t for_update = 2;
constexpr std::uint8_t scrollable = 4;
} // namespace cursor_types
// Binary protocol (de)serialization constants
namespace binc {
constexpr std::size_t length_sz = 1; // length byte, for date, datetime and time
constexpr std::size_t year_sz = 2;
constexpr std::size_t month_sz = 1;
constexpr std::size_t date_day_sz = 1;
constexpr std::size_t time_days_sz = 4;
constexpr std::size_t hours_sz = 1;
constexpr std::size_t mins_sz = 1;
constexpr std::size_t secs_sz = 1;
constexpr std::size_t micros_sz = 4;
constexpr std::size_t time_sign_sz = 1;
constexpr std::size_t date_sz = year_sz + month_sz + date_day_sz; // does not include length
constexpr std::size_t datetime_d_sz = date_sz;
constexpr std::size_t datetime_dhms_sz = datetime_d_sz + hours_sz + mins_sz + secs_sz;
constexpr std::size_t datetime_dhmsu_sz = datetime_dhms_sz + micros_sz;
constexpr std::size_t time_dhms_sz = time_sign_sz + time_days_sz + hours_sz + mins_sz + secs_sz;
constexpr std::size_t time_dhmsu_sz = time_dhms_sz + micros_sz;
constexpr std::size_t time_max_days = 34; // equivalent to the 839 hours, in the broken format
} // namespace binc
} // namespace detail
} // namespace mysql
} // namespace boost
#endif