mariadb/sql/wsrep_mutex.h
Marko Mäkelä 0b849a441a WSREP: Fix GCC 12.0.1 -Wuninitialized
GCC 12 complains if a reference to an uninitialized object is
being passed to a constructor. The mysql_mutex_t, mysql_cond_t
would be initialized in the constructor body, which is executed
after the initializer list. There is no problem passing a pointer
instead of a reference. The wrapper classes do not dereference
the pointers in the constructor or destructor, so there does not
appear to be any correctness issue.
2022-02-23 07:18:00 +02:00

50 lines
1.2 KiB
C++

/* Copyright 2018 Codership Oy <info@codership.com>
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 WSREP_MUTEX_H
#define WSREP_MUTEX_H
/* wsrep-lib */
#include "wsrep/mutex.hpp"
/* implementation */
#include "my_pthread.h"
class Wsrep_mutex : public wsrep::mutex
{
public:
Wsrep_mutex(mysql_mutex_t* mutex)
: m_mutex(mutex)
{ }
void lock()
{
mysql_mutex_lock(m_mutex);
}
void unlock()
{
mysql_mutex_unlock(m_mutex);
}
void* native()
{
return m_mutex;
}
private:
mysql_mutex_t* m_mutex;
};
#endif /* WSREP_MUTEX_H */