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Add protection for reinitialization of mutex in parallel replaction

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Added mutex_lock/mutex_unlock of mutex that is to be destroyed in
wait_for_commit::reinit() in a similar fashion that we do in
~wait_for_commit
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Monty 2017-01-30 16:13:49 +02:00 committed by Sergei Golubchik
parent c5e25c8b40
commit a2de378c00
1 changed files with 6 additions and 0 deletions
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6
sql/sql_class.cc
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@ -6516,7 +6516,13 @@ wait_for_commit::reinit()
So in this case, do a re-init of the mutex. In release builds, we want to
avoid the overhead of a re-init though.
To ensure that no one is locking the mutex, we take a lock of it first.
For full explanation, see wait_for_commit::~wait_for_commit()
*/
mysql_mutex_lock(&LOCK_wait_commit);
mysql_mutex_unlock(&LOCK_wait_commit);
mysql_mutex_destroy(&LOCK_wait_commit);
mysql_mutex_init(key_LOCK_wait_commit, &LOCK_wait_commit, MY_MUTEX_INIT_FAST);
#endif