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source include/master-slave.inc;
CALL mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
create table t1(n int);
# Use of get_lock gives a warning for unsafeness if binlog_format=statement
--disable_warnings
insert into t1 values(get_lock("lock",2));
--enable_warnings
dirty_close master;
connection master1;
select get_lock("lock",2);
select release_lock("lock");
#ignore
disable_query_log;
let $1=2000;
while ($1)
{
do get_lock("lock",2);
do release_lock("lock");
dec $1;
}
enable_query_log;
sync_slave_with_master;
select get_lock("lock",3);
select * from t1;
# There is no point in testing REPLICATIION of the IS_*_LOCK
# functions; slave does not run with the same concurrency context as
# master (generally in slave we can't know that on master this lock
# was already held by another connection and so that the the
# get_lock() we're replicating timed out on master hence returned 0,
# or that the is_free_lock() we're playing returned 0 etc.
# But here all we do is test these functions outside of replication.
select is_free_lock("lock"), is_used_lock("lock") = connection_id();
explain extended select is_free_lock("lock"), is_used_lock("lock");
# Check lock functions
select is_free_lock("lock2");
select is_free_lock(NULL);
connection master1;
drop table t1;
sync_slave_with_master;
--source include/rpl_end.inc
# End of 4.1 tests
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