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87 lines
3.4 KiB
87 lines
3.4 KiB
3 months ago
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/* Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
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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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This program is also distributed 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 included with MySQL.
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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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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 SDI_UTILS_INCLUDED
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#define SDI_UTILS_INCLUDED
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#include <stddef.h>
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#include "my_inttypes.h"
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/**
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This function retrieves serialized meta data from the data dictionary
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for the given schema and table. The serialized meta data may be used
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for various purposes, such as writing it to a file, shipping it to
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other processes, etc.
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@param[in] schema_name Name of the schema
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@param[in] table_name Name of the table
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@param[out] meta_data The serialized meta data of the table
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@param[out] meta_data_length The size of the meta data blob
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@retval false Success
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@retval true Error, e.g. the table was not found in the data dictionary.
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In this case, the values of 'meta_data_length' and
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'meta_data' are not defined.
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*/
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bool create_serialized_meta_data(const char *schema_name,
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const char *table_name, uchar **meta_data,
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size_t *meta_data_length);
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/**
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This function takes the submitted serialized meta data, de-serializes
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and analyzes it, and merges it into the data dictionary.
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@param[in] meta_data The serialized meta data
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@param[in] meta_data_length The size of the meta data blob
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@param[in] readonly Disallow conflict resolution affecting the
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imported meta data
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@retval false Success
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@retval true Error, e.g. a conflict was detected while 'readonly' is
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set to 'true'.
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*/
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bool import_serialized_meta_data(const uchar *meta_data,
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size_t meta_data_length, bool readonly);
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/**
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This function takes the two submitted serialized meta data blobs,
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and compares them.
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@param[in] a_meta_data First serialized meta data blob
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@param[in] a_meta_data_length Size of the first meta data blob
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@param[in] b_meta_data Second serialized meta data blob
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@param[in] b_meta_data_length Size of the second meta data blob
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@retval false The two blobs are identical
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@retval true The two blobs are different
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*/
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bool different_serialized_meta_data(const uchar *a_meta_data,
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size_t a_meta_data_length,
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const uchar *b_meta_data,
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size_t b_meta_data_length);
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#endif /* SDI_UTILS_INCLUDED */
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