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/* -*- C++ -*- */
/* Copyright (C) 2002 MySQL AB

   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; either version 2 of the License, or
   (at your option) any later version.

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#ifndef _SP_H_
#define _SP_H_

// Return codes from sp_create_*, sp_drop_*, and sp_show_*:
#define SP_OK                 0
#define SP_KEY_NOT_FOUND     -1
#define SP_OPEN_TABLE_FAILED -2
#define SP_WRITE_ROW_FAILED  -3
#define SP_DELETE_ROW_FAILED -4
#define SP_GET_FIELD_FAILED  -5
#define SP_PARSE_ERROR       -6
#define SP_INTERNAL_ERROR    -7
#define SP_NO_DB_ERROR       -8

/* Drop all routines in database 'db' */
int
sp_drop_db_routines(THD *thd, char *db);

sp_head *
sp_find_procedure(THD *thd, sp_name *name);

int
sp_exists_routine(THD *thd, TABLE_LIST *procs, bool any, bool no_error);

int
sp_create_procedure(THD *thd, sp_head *sp);

int
sp_drop_procedure(THD *thd, sp_name *name);


int
sp_update_procedure(THD *thd, sp_name *name, st_sp_chistics *chistics);

int
sp_show_create_procedure(THD *thd, sp_name *name);

int
sp_show_status_procedure(THD *thd, const char *wild);

sp_head *
sp_find_function(THD *thd, sp_name *name, bool cache_only = 0);

int
sp_create_function(THD *thd, sp_head *sp);

int
sp_drop_function(THD *thd, sp_name *name);

int
sp_update_function(THD *thd, sp_name *name, st_sp_chistics *chistics);

int
sp_show_create_function(THD *thd, sp_name *name);

int
sp_show_status_function(THD *thd, const char *wild);

bool
sp_function_exists(THD *thd, sp_name *name);


/*
 *  For precaching of functions and procedures
 */
void
sp_add_to_hash(HASH *h, sp_name *fun);
void
sp_merge_hash(HASH *dst, HASH *src);
int
sp_cache_routines(THD *thd, LEX *lex, int type);


//
// Utilities...
//

// Do a "use newdb". The current db is stored at olddb.
// If newdb is the same as the current one, nothing is changed.
// dbchangedp is set to true if the db was actually changed.
int
sp_use_new_db(THD *thd, char *newdb, char *olddb, uint olddbmax,
	      bool no_access_check, bool *dbchangedp);

// Like mysql_change_db() but handles empty db name and the  send_ok() problem.
int
sp_change_db(THD *thd, char *db, bool no_access_check);

#endif /* _SP_H_ */