mysql-server/libs/mysql/serialization/read_archive_binary_impl.hpp
2025-03-05 14:31:37 +07:00

55 lines
2.2 KiB
C++

// Copyright (c) 2023, 2024, Oracle and/or its affiliates.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
//
// This program is designed to work with certain software (including
// but not limited to OpenSSL) that is licensed under separate terms,
// as designated in a particular file or component or in included license
// documentation. The authors of MySQL hereby grant you an additional
// permission to link the program and your derivative works with the
// separately licensed software that they have either included with
// the program or referenced in the documentation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License, version 2.0, for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
/// @file
/// Experimental API header
namespace mysql::serialization {
template <typename Field_type>
Read_archive_binary &Read_archive_binary::operator>>(Field_type &&arg) {
static constexpr auto value_size = Field_type::value_size;
using value_type = typename std::decay_t<Field_type>::value_type;
if (is_good() == true) {
auto bytes_read =
Primitive_type_codec<value_type>::template read_bytes<value_size>(
m_stream + read_pos, m_stream_size - read_pos, arg.get());
if (bytes_read == 0) {
m_error = Serialization_error(
__FILE__, __LINE__, "Unable to read data from the stream",
Serialization_error_type::archive_read_error);
return *this;
}
read_pos += bytes_read;
}
return *this;
}
template <class Field_type>
void Read_archive_binary::peek(Field_type &&field) {
auto read_pos_saved = read_pos;
this->operator>>(std::forward<Field_type>(field));
read_pos = read_pos_saved;
}
} // namespace mysql::serialization