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lock.h
1 /* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
2 
3  This program is free software; you can redistribute it and/or modify
4  it under the terms of the GNU General Public License as published by
5  the Free Software Foundation; version 2 of the License.
6 
7  This program is distributed in the hope that it will be useful,
8  but WITHOUT ANY WARRANTY; without even the implied warranty of
9  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  GNU General Public License for more details.
11 
12  You should have received a copy of the GNU General Public License
13  along with this program; if not, write to the Free Software
14  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
15 
16 #ifndef LOCK_INCLUDED
17 #define LOCK_INCLUDED
18 
19 #include "thr_lock.h" /* thr_lock_type */
20 #include "mdl.h"
21 
22 // Forward declarations
23 struct TABLE;
24 struct TABLE_LIST;
25 class THD;
26 typedef struct st_mysql_lock MYSQL_LOCK;
27 
28 
29 MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **table, uint count, uint flags);
30 void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock);
31 void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock);
32 void mysql_unlock_some_tables(THD *thd, TABLE **table,uint count);
33 void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table);
34 void mysql_lock_abort(THD *thd, TABLE *table, bool upgrade_lock);
35 bool mysql_lock_abort_for_thread(THD *thd, TABLE *table);
36 MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
37 /* Lock based on name */
38 bool lock_schema_name(THD *thd, const char *db);
39 /* Lock based on stored routine name */
40 bool lock_object_name(THD *thd, MDL_key::enum_mdl_namespace mdl_type,
41  const char *db, const char *name);
42 
43 #endif /* LOCK_INCLUDED */