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109 lines
3.8 KiB
109 lines
3.8 KiB
5 months ago
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/* Copyright (c) 2004, 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 _PARSE_FILE_H_
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#define _PARSE_FILE_H_
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#include <stddef.h>
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#include <sys/types.h>
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#include "lex_string.h"
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#include "my_inttypes.h"
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struct MEM_ROOT;
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#define PARSE_FILE_TIMESTAMPLENGTH 19
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enum file_opt_type {
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FILE_OPTIONS_STRING, /**< String (LEX_STRING) */
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FILE_OPTIONS_ESTRING, /**< Escaped string (LEX_STRING) */
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FILE_OPTIONS_ULONGLONG, /**< ulonglong parameter (ulonglong) */
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FILE_OPTIONS_TIMESTAMP, /**< timestamp (LEX_STRING have to be
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allocated with length 20 (19+1) */
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FILE_OPTIONS_STRLIST, /**< list of escaped strings
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(List<LEX_STRING>) */
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FILE_OPTIONS_ULLLIST /**< list of ulonglong values
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(List<ulonglong>) */
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};
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struct File_option {
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LEX_CSTRING name; /**< Name of the option */
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size_t offset; /**< offset to base address of value */
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file_opt_type type; /**< Option type */
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};
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/**
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This hook used to catch no longer supported keys and process them for
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backward compatibility.
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*/
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class Unknown_key_hook {
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public:
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Unknown_key_hook() {} /* Remove gcc warning */
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virtual ~Unknown_key_hook() {} /* Remove gcc warning */
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virtual bool process_unknown_string(const char *&unknown_key, uchar *base,
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MEM_ROOT *mem_root, const char *end) = 0;
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};
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/**
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Dummy hook for parsers which do not need hook for unknown keys.
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*/
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class File_parser_dummy_hook : public Unknown_key_hook {
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public:
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File_parser_dummy_hook() {} /* Remove gcc warning */
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bool process_unknown_string(const char *&unknown_key, uchar *, MEM_ROOT *,
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const char *) override;
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};
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extern File_parser_dummy_hook file_parser_dummy_hook;
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bool get_file_options_ulllist(const char *&ptr, const char *end,
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const char *line, uchar *base,
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File_option *parameter, MEM_ROOT *mem_root);
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class File_parser;
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File_parser *sql_parse_prepare(const LEX_STRING *file_name, MEM_ROOT *mem_root,
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bool bad_format_errors);
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class File_parser {
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const char *start, *end;
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LEX_CSTRING file_type;
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bool content_ok;
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public:
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File_parser() : start(0), end(0), content_ok(0) {
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file_type.str = 0;
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file_type.length = 0;
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}
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bool ok() { return content_ok; }
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const LEX_CSTRING &type() const { return file_type; }
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bool parse(uchar *base, MEM_ROOT *mem_root, struct File_option *parameters,
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uint required, Unknown_key_hook *hook) const;
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friend File_parser *sql_parse_prepare(const LEX_STRING *file_name,
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MEM_ROOT *mem_root,
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bool bad_format_errors);
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};
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#endif /* _PARSE_FILE_H_ */
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