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120 lines
3.7 KiB
120 lines
3.7 KiB
/* Copyright (c) 2010, 2019, 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 SQL_BOOTSTRAP_H
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#define SQL_BOOTSTRAP_H
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#include <stddef.h>
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#include <functional>
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#include "map_helpers.h"
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struct MYSQL_FILE;
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/**
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The maximum size of a bootstrap query.
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Increase this size if parsing a longer query during bootstrap is necessary.
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The longest query in use depends on the documentation content,
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see the file fill_help_tables.sql
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*/
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#define MAX_BOOTSTRAP_QUERY_SIZE 74000
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/**
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The maximum size of a bootstrap query, expressed in a single line.
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Do not increase this size, use the multiline syntax instead.
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*/
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#define MAX_BOOTSTRAP_LINE_SIZE 74000
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enum bootstrap_error {
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READ_BOOTSTRAP_SUCCESS = 0,
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READ_BOOTSTRAP_EOF,
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READ_BOOTSTRAP_IO,
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READ_BOOTSTRAP_DELIMITER,
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READ_BOOTSTRAP_SQ_NOT_TERMINATED,
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READ_BOOTSTRAP_DQ_NOT_TERMINATED,
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READ_BOOTSTRAP_COMMENT_NOT_TERMINATED,
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READ_BOOTSTRAP_QUERY_SIZE,
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READ_BOOTSTRAP_ERROR
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};
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typedef char *(*fgets_fn_t)(char *, size_t, MYSQL_FILE *, int *error);
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enum delimiter_state {
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/** Delimiter is ';' */
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DELIMITER_SEMICOLON,
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/** Delimiter is "$$" */
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DELIMITER_DOLLAR_DOLLAR
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};
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enum code_parsing_state {
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/** Parsing sql code. */
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NORMAL,
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/** Parsing a 'literal' string. */
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IN_SINGLE_QUOTE,
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/** Parsing a "literal" string. */
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IN_DOUBLE_QUOTE,
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/** Parsing a "--" comment. */
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IN_DASH_DASH_COMMENT,
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/** Parsing a '/''*' comment. */
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IN_SLASH_STAR_COMMENT,
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/** Parsing a '#' comment. */
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IN_POUND_COMMENT
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};
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struct bootstrap_parser_position {
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void init();
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size_t m_line;
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size_t m_column;
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};
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struct bootstrap_parser_state {
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// This buffer may be rather large,
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// so we allocate it on the heap to save stack space.
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// This struct is also used by the standalone 'comp_sql' tool,
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// so we use plain malloc/free rather than my_() to avoid dependency on mysys.
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unique_ptr_free<char> m_unget_buffer;
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size_t m_unget_buffer_length;
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typedef void (*log_function_t)(const char *message);
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void init(const char *filename);
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void report_error_details(log_function_t log);
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delimiter_state m_delimiter;
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code_parsing_state m_code_state;
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const char *m_filename;
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size_t m_current_line;
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enum bootstrap_error m_last_error;
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int m_io_sub_error;
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bootstrap_parser_position m_last_delimiter;
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bootstrap_parser_position m_last_open_single_quote;
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bootstrap_parser_position m_last_open_double_quote;
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bootstrap_parser_position m_last_open_comment;
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bootstrap_parser_position m_last_query_start;
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};
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int read_bootstrap_query(char *query, size_t *query_length, MYSQL_FILE *input,
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fgets_fn_t fgets_fn, bootstrap_parser_state *state);
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#endif
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