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/* Copyright (c) 2014, 2025, 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 */
#ifndef SDI_UTILS_INCLUDED
#define SDI_UTILS_INCLUDED
#include <stddef.h>
#include "my_inttypes.h"
/**
This function retrieves serialized meta data from the data dictionary
for the given schema and table. The serialized meta data may be used
for various purposes, such as writing it to a file, shipping it to
other processes, etc.
@param[in] schema_name Name of the schema
@param[in] table_name Name of the table
@param[out] meta_data The serialized meta data of the table
@param[out] meta_data_length The size of the meta data blob
@retval false Success
@retval true Error, e.g. the table was not found in the data dictionary.
In this case, the values of 'meta_data_length' and
'meta_data' are not defined.
*/
bool create_serialized_meta_data(const char *schema_name,
const char *table_name, uchar **meta_data,
size_t *meta_data_length);
/**
This function takes the submitted serialized meta data, de-serializes
and analyzes it, and merges it into the data dictionary.
@param[in] meta_data The serialized meta data
@param[in] meta_data_length The size of the meta data blob
@param[in] readonly Disallow conflict resolution affecting the
imported meta data
@retval false Success
@retval true Error, e.g. a conflict was detected while 'readonly' is
set to 'true'.
*/
bool import_serialized_meta_data(const uchar *meta_data,
size_t meta_data_length, bool readonly);
/**
This function takes the two submitted serialized meta data blobs,
and compares them.
@param[in] a_meta_data First serialized meta data blob
@param[in] a_meta_data_length Size of the first meta data blob
@param[in] b_meta_data Second serialized meta data blob
@param[in] b_meta_data_length Size of the second meta data blob
@retval false The two blobs are identical
@retval true The two blobs are different
*/
bool different_serialized_meta_data(const uchar *a_meta_data,
size_t a_meta_data_length,
const uchar *b_meta_data,
size_t b_meta_data_length);
#endif /* SDI_UTILS_INCLUDED */
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