/* Copyright 2006-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.

   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  02110-1301  USA */

#ifndef SQL_DB_INCLUDED
#define SQL_DB_INCLUDED

#include "hash.h"                               /* HASH */

class THD;
typedef struct charset_info_st CHARSET_INFO;
typedef struct st_ha_create_information HA_CREATE_INFO;
typedef struct st_mysql_lex_string LEX_STRING;

int mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create, bool silent);
bool mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create);
bool mysql_rm_db(THD *thd,char *db,bool if_exists, bool silent);
bool mysql_upgrade_db(THD *thd, LEX_STRING *old_db);
bool mysql_change_db(THD *thd, const LEX_STRING *new_db_name,
                     bool force_switch);

bool mysql_opt_change_db(THD *thd,
                         const LEX_STRING *new_db_name,
                         LEX_STRING *saved_db_name,
                         bool force_switch,
                         bool *cur_db_changed);
bool my_database_names_init(void);
void my_database_names_free(void);
bool check_db_dir_existence(const char *db_name);
bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create);
bool load_db_opt_by_name(THD *thd, const char *db_name,
                         HA_CREATE_INFO *db_create_info);
CHARSET_INFO *get_default_db_collation(THD *thd, const char *db_name);
bool my_dbopt_init(void);
void my_dbopt_cleanup(void);

extern int creating_database; // How many database locks are made
extern HASH lock_db_cache;

#define MY_DB_OPT_FILE "db.opt"

#endif /* SQL_DB_INCLUDED */
