mysql5/mysql-5.7.27/sql/ndb_global_schema_lock_guard.h

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C++

/*
Copyright (c) 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 NDB_GLOBAL_SCHEMA_LOCK_GUARD_H
#define NDB_GLOBAL_SCHEMA_LOCK_GUARD_H
#include <mysql/plugin.h>
class Ndb_global_schema_lock_guard
{
public:
Ndb_global_schema_lock_guard(THD *thd);
~Ndb_global_schema_lock_guard();
int lock(bool no_lock_queue=false,
bool report_cluster_disconnected=true);
private:
THD* m_thd;
bool m_locked;
};
#endif