text: /* Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
  
     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 LOCK_INCLUDED
  #define LOCK_INCLUDED
  
  #include "thr_lock.h"                           /* thr_lock_type */
  #include "mdl.h"
  
  // Forward declarations
  struct TABLE;
  struct TABLE_LIST;
  class THD;
  typedef struct st_mysql_lock MYSQL_LOCK;
  
  
  MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **table, uint count, uint flags);
  void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock);
  void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock);
  void mysql_unlock_some_tables(THD *thd, TABLE **table,uint count);
  void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table);
  void mysql_lock_abort(THD *thd, TABLE *table, bool upgrade_lock);
  bool mysql_lock_abort_for_thread(THD *thd, TABLE *table);
  MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
  /* Lock based on name */
  bool lock_schema_name(THD *thd, const char *db);
  /* Lock based on stored routine name */
  bool lock_object_name(THD *thd, MDL_key::enum_mdl_namespace mdl_type,
                        const char *db, const char *name);
  
  #endif /* LOCK_INCLUDED */
  