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/* Copyright (C) 2010, 2021, MariaDB Corporation.
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 Street, Fifth Floor, Boston, MA 02110-1335 USA */
/**
@file
Engine defined options of tables/fields/keys in CREATE/ALTER TABLE.
*/
#ifndef SQL_CREATE_OPTIONS_INCLUDED
#define SQL_CREATE_OPTIONS_INCLUDED
#include "sql_class.h"
enum { ENGINE_OPTION_MAX_LENGTH=32767 };
/*
Key-value list. Used for engine-defined options in CREATE TABLE
and OPTIONS in CREATE SERVER.
*/
class engine_option_value: public Sql_alloc
{
public:
class Name: public Lex_ident_ci
{
public:
using Lex_ident_ci::Lex_ident_ci;
};
class Value: public Lex_cstring
{
public:
using Lex_cstring::Lex_cstring;
bool streq(const LEX_CSTRING &rhs) const
{
return my_charset_utf8mb3_general1400_as_ci.streq(*this, rhs);
}
uint find_in_list(const char *str) const
{
const char *end= str;
for (int num= 0; *end; num++)
{
for (end=str; *end && *end != ','; end++) /* no-op */;
if (streq(Lex_cstring(str, end)))
return num;
str= end + 1;
}
return UINT_MAX;
}
};
public:
Name name;
Value value;
engine_option_value *next; ///< parser puts them in a FIFO linked list
bool parsed; ///< to detect unrecognized options
bool quoted_value; ///< option=VAL vs. option='VAL'
engine_option_value(engine_option_value *src) :
name(src->name), value(src->value),
next(NULL), parsed(src->parsed), quoted_value(src->quoted_value)
{
}
engine_option_value(const Name &name_arg,
const Value &value_arg,
bool quoted) :
name(name_arg), value(value_arg),
next(NULL), parsed(false), quoted_value(quoted)
{
}
engine_option_value(const Name &name_arg):
name(name_arg), value(null_clex_str),
next(NULL), parsed(false), quoted_value(false)
{
}
engine_option_value(const Name &name_arg,
ulonglong value_arg,
MEM_ROOT *root) :
name(name_arg), next(NULL), parsed(false), quoted_value(false)
{
char *str;
if (likely((value.str= str= (char *)alloc_root(root, 22))))
{
value.length= longlong10_to_str(value_arg, str, 10) - str;
}
}
static uchar *frm_read(const uchar *buff, const uchar *buff_end,
engine_option_value **start,
engine_option_value **end, MEM_ROOT *root);
void link(engine_option_value **start, engine_option_value **end);
uint frm_length();
uchar *frm_image(uchar *buff);
};
typedef struct st_key KEY;
class Create_field;
bool resolve_sysvar_table_options(ha_create_table_option *rules);
void free_sysvar_table_options(ha_create_table_option *rules);
bool parse_engine_table_options(THD *thd, handlerton *ht, TABLE_SHARE *share);
#ifdef WITH_PARTITION_STORAGE_ENGINE
bool parse_engine_part_options(THD *thd, TABLE *table);
#endif
bool parse_option_list(THD* thd, void *option_struct,
engine_option_value **option_list,
ha_create_table_option *rules,
bool suppress_warning, MEM_ROOT *root);
bool extend_option_list(THD* thd, st_plugin_int *plugin, bool create,
engine_option_value **option_list,
ha_create_table_option *rules);
static inline bool extend_option_list(THD* thd, handlerton *hton, bool create,
engine_option_value **option_list,
ha_create_table_option *rules)
{
return extend_option_list(thd, hton2plugin[hton->slot], create, option_list,
rules);
}
bool engine_table_options_frm_read(const uchar *buff, size_t length,
TABLE_SHARE *share);
bool merge_engine_options(engine_option_value *source,
engine_option_value *changes,
engine_option_value **out, MEM_ROOT *root);
uint engine_table_options_frm_length(engine_option_value *table_option_list,
List<Create_field> &create_fields,
uint keys, KEY *key_info);
uchar *engine_table_options_frm_image(uchar *buff,
engine_option_value *table_option_list,
List<Create_field> &create_fields,
uint keys, KEY *key_info);
bool engine_options_differ(void *old_struct, void *new_struct,
ha_create_table_option *rules);
bool is_engine_option_known(engine_option_value *opt,
ha_create_table_option *rules);
#endif
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