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 02110-1335 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 bool mysql_lock_tables(THD *thd, MYSQL_LOCK *sql_lock, uint flags); 31 void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock, bool free_lock); 32 void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock); 33 void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock); 34 void mysql_unlock_some_tables(THD *thd, TABLE **table,uint count, uint flag); 35 void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table); 36 bool mysql_lock_abort_for_thread(THD *thd, TABLE *table); 37 MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b); 38 /* Lock based on name */ 39 bool lock_schema_name(THD *thd, const char *db); 40 /* Lock based on stored routine name */ 41 bool lock_object_name(THD *thd, MDL_key::enum_mdl_namespace mdl_type, 42 const char *db, const char *name); 43 44 /* flags for get_lock_data */ 45 #define GET_LOCK_UNLOCK 0 46 #define GET_LOCK_STORE_LOCKS 1 47 #define GET_LOCK_ACTION_MASK 1 48 #define GET_LOCK_ON_THD (1 << 1) 49 #define GET_LOCK_SKIP_SEQUENCES (1 << 2) 50 51 MYSQL_LOCK *get_lock_data(THD *thd, TABLE **table_ptr, uint count, uint flags); 52 void reset_lock_data(MYSQL_LOCK *sql_lock, bool unlock); 53 54 #endif /* LOCK_INCLUDED */ 55