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122 lines
4.3 KiB
C++
122 lines
4.3 KiB
C++
/* -*- C++ -*- */
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/* Copyright (c) 2004, 2010, 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 as published by
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the Free Software Foundation; version 2 of the License.
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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 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 02110-1335 USA */
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#ifndef _PARSE_FILE_H_
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#define _PARSE_FILE_H_
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#include "sql_string.h" // LEX_STRING
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#include "sql_alloc.h" // Sql_alloc
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class THD;
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typedef struct st_mem_root 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_VIEW_ALGO, /**< Similar to longlong, but needs conversion */
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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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{
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LEX_CSTRING name; /**< Name of the option */
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my_ptrdiff_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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{
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public:
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Unknown_key_hook() = default; /* Remove gcc warning */
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virtual ~Unknown_key_hook() = default; /* 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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/** Dummy hook for parsers which do not need hook for unknown keys. */
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class File_parser_dummy_hook: public Unknown_key_hook
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{
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public:
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File_parser_dummy_hook() = default; /* Remove gcc warning */
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bool process_unknown_string(const char *&unknown_key, uchar* base,
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MEM_ROOT *mem_root, const char *end) 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,
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MEM_ROOT *mem_root);
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const char *
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parse_escaped_string(const char *ptr, const char *end, MEM_ROOT *mem_root,
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LEX_CSTRING *str);
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class File_parser;
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File_parser *sql_parse_prepare(const LEX_CSTRING *file_name,
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MEM_ROOT *mem_root, bool bad_format_errors);
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my_bool
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sql_create_definition_file(const LEX_CSTRING *dir,
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const LEX_CSTRING *file_name,
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const LEX_CSTRING *type,
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uchar* base, File_option *parameters);
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my_bool rename_in_schema_file(THD *thd,
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const char *schema, const char *old_name,
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const char *new_db, const char *new_name);
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int sql_backup_definition_file(const LEX_CSTRING *org_name,
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LEX_CSTRING *new_name);
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int sql_restore_definition_file(const LEX_CSTRING *name);
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class File_parser: public Sql_alloc
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{
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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; file_type.length= 0; }
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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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my_bool parse(uchar* base, MEM_ROOT *mem_root,
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struct File_option *parameters, uint required,
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Unknown_key_hook *hook) const;
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friend File_parser *sql_parse_prepare(const LEX_CSTRING *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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