Current File : //usr/include/mysql/server/private/parse_file.h
/* -*- C++ -*- */
/* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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 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 02110-1335 USA */
#ifndef _PARSE_FILE_H_
#define _PARSE_FILE_H_
#include "sql_string.h" // LEX_STRING
#include "sql_alloc.h" // Sql_alloc
class THD;
typedef struct st_mem_root MEM_ROOT;
#define PARSE_FILE_TIMESTAMPLENGTH 19
enum file_opt_type {
FILE_OPTIONS_STRING, /**< String (LEX_STRING) */
FILE_OPTIONS_ESTRING, /**< Escaped string (LEX_STRING) */
FILE_OPTIONS_ULONGLONG, /**< ulonglong parameter (ulonglong) */
FILE_OPTIONS_VIEW_ALGO, /**< Similar to longlong, but needs conversion */
FILE_OPTIONS_TIMESTAMP, /**< timestamp (LEX_STRING have to be
allocated with length 20 (19+1) */
FILE_OPTIONS_STRLIST, /**< list of escaped strings
(List<LEX_STRING>) */
FILE_OPTIONS_ULLLIST /**< list of ulonglong values
(List<ulonglong>) */
};
struct File_option
{
LEX_CSTRING name; /**< Name of the option */
my_ptrdiff_t offset; /**< offset to base address of value */
file_opt_type type; /**< Option type */
};
/**
This hook used to catch no longer supported keys and process them for
backward compatibility.
*/
class Unknown_key_hook
{
public:
Unknown_key_hook() = default; /* Remove gcc warning */
virtual ~Unknown_key_hook() = default; /* Remove gcc warning */
virtual bool process_unknown_string(const char *&unknown_key, uchar* base,
MEM_ROOT *mem_root, const char *end)= 0;
};
/** Dummy hook for parsers which do not need hook for unknown keys. */
class File_parser_dummy_hook: public Unknown_key_hook
{
public:
File_parser_dummy_hook() = default; /* Remove gcc warning */
bool process_unknown_string(const char *&unknown_key, uchar* base,
MEM_ROOT *mem_root, const char *end) override;
};
extern File_parser_dummy_hook file_parser_dummy_hook;
bool get_file_options_ulllist(const char *&ptr, const char *end,
const char *line, uchar* base,
File_option *parameter,
MEM_ROOT *mem_root);
const char *
parse_escaped_string(const char *ptr, const char *end, MEM_ROOT *mem_root,
LEX_CSTRING *str);
class File_parser;
File_parser *sql_parse_prepare(const LEX_CSTRING *file_name,
MEM_ROOT *mem_root, bool bad_format_errors);
my_bool
sql_create_definition_file(const LEX_CSTRING *dir,
const LEX_CSTRING *file_name,
const LEX_CSTRING *type,
uchar* base, File_option *parameters);
my_bool rename_in_schema_file(THD *thd,
const char *schema, const char *old_name,
const char *new_db, const char *new_name);
int sql_backup_definition_file(const LEX_CSTRING *org_name,
LEX_CSTRING *new_name);
int sql_restore_definition_file(const LEX_CSTRING *name);
class File_parser: public Sql_alloc
{
char *start, *end;
LEX_CSTRING file_type;
bool content_ok;
public:
File_parser() :start(0), end(0), content_ok(0)
{ file_type.str= 0; file_type.length= 0; }
bool ok() { return content_ok; }
const LEX_CSTRING *type() const { return &file_type; }
my_bool parse(uchar* base, MEM_ROOT *mem_root,
struct File_option *parameters, uint required,
Unknown_key_hook *hook) const;
friend File_parser *sql_parse_prepare(const LEX_CSTRING *file_name,
MEM_ROOT *mem_root,
bool bad_format_errors);
};
#endif /* _PARSE_FILE_H_ */
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