107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
// Copyright (c) 2023, 2024, Oracle and/or its affiliates.
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License, version 2.0,
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// as published by the Free Software Foundation.
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//
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// This program is designed to work with certain software (including
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// but not limited to OpenSSL) that is licensed under separate terms,
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// as designated in a particular file or component or in included license
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// documentation. The authors of MySQL hereby grant you an additional
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// permission to link the program and your derivative works with the
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// separately licensed software that they have either included with
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// the program or referenced in the documentation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License, version 2.0, for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef MYSQL_SERIALIZATION_ARCHIVE_TEXT_H
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#define MYSQL_SERIALIZATION_ARCHIVE_TEXT_H
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#include <sstream>
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#include "mysql/serialization/archive.h"
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#include "mysql/serialization/serializer.h"
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/// @file
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/// Experimental API header
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/// @addtogroup GroupLibsMysqlSerialization
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/// @{
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namespace mysql::serialization {
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/// @brief Archive implementation based on stringstream
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/// @note Does not provide backward or forward compatibility, used only
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/// for printing text, debug internally
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class Archive_text : public Archive<Archive_text> {
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public:
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/// @copydoc Archive::operator<<
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template <typename Field_type>
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Archive_text &operator<<(Field_type &&arg);
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/// @copydoc Archive::operator>>
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template <typename Field_type>
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Archive_text &operator>>(Field_type &&arg);
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/// @copydoc Archive::get_raw_data
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std::string get_raw_data();
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/// @copydoc Archive::get_size_written
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inline std::size_t get_size_written() const {
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return m_stream.str().length();
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}
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// available for serializer concrete types
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/// @copydoc Archive::put_field_separator
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void put_field_separator() override;
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/// @copydoc Archive::put_entry_separator
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void put_entry_separator() override;
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/// @copydoc Archive::put_level_separator
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void put_level_separator() override;
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/// @copydoc Archive::peek
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template <class Field_type>
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void peek(Field_type &&field);
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/// @copydoc Archive::seek_to
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void seek_to(std::size_t num_pos) {
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std::size_t pos = m_stream.tellg();
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m_stream.seekg(pos + num_pos, std::ios_base::beg);
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}
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/// @copydoc Archive::get_size
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template <typename T, Field_size S>
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static std::size_t get_size([[maybe_unused]] Field_wrapper<T, S> &&arg) {
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return 0; // size info unused
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}
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/// @copydoc Archive::get_size
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template <typename T, Field_size S>
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static constexpr std::size_t get_max_size() {
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return 0; // size info unused
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}
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/// @copydoc Archive::get_read_pos
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inline std::size_t get_read_pos() const { return 0; }
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private:
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std::stringstream m_stream; ///< Internal data stream
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};
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} // namespace mysql::serialization
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/// @}
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#include "mysql/serialization/archive_text_impl.hpp"
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#endif // MYSQL_SERIALIZATION_ARCHIVE_TEXT_H
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