polardbxengine/storage/ndb/plugin/ndb_tdc.cc

72 lines
2.6 KiB
C++

/*
Copyright (c) 2014, 2019, 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, version 2.0,
as published by the Free Software Foundation.
This program is also distributed with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have included with MySQL.
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, version 2.0, 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
*/
#include "storage/ndb/plugin/ndb_tdc.h"
#include "sql/sql_base.h" // close_cached_tables()
#include "sql/table.h" // TABLE_LIST
/*
Close all tables in MySQL Server's table definition cache
which aren't in use by any thread
*/
bool ndb_tdc_close_cached_tables(void) {
DBUG_TRACE;
const int res = close_cached_tables(NULL, // No need for thd pointer
NULL, // Close all tables
false, // Don't wait
0 // Timeout unused when not waiting
);
return res;
}
/*
Close table in MySQL Server's table definition cache
which aren't in use by any thread
@param thd Thread handle
@param[in] dbname Name of database table is in
@param[in] tabname Name of table
*/
bool ndb_tdc_close_cached_table(THD *thd, const char *dbname,
const char *tabname) {
DBUG_TRACE;
DBUG_PRINT("enter", ("dbname: %s, tabname: %s", dbname, tabname));
// NOTE! initializes only the minimal part of TABLE_LIST
// required for calling close_cached_tables()
TABLE_LIST table_list;
table_list.db = dbname;
table_list.alias = table_list.table_name = tabname;
const int res = close_cached_tables(thd, &table_list,
false, // Don't wait
0 // Timeout unused when not waiting
);
return res;
}