mariadb/mysql-test/main/backup_lock_debug.test

########################################################################
# Tests for BACKUP STAGE locking that requires debug.
########################################################################

--source include/have_debug_sync.inc

--echo #
--echo # Make sure pending LOCK TABLES doesn't block BACKUP STAGE
--echo #
CREATE TABLE t1(a INT);
LOCK TABLE t1 READ;

--echo #
connect (con1,localhost,root,,);
SET DEBUG_SYNC= 'mdl_acquire_lock_wait SIGNAL ready';
--send LOCK TABLE t1 WRITE

--echo #
connect (con2,localhost,root,,);
SET DEBUG_SYNC= 'now WAIT_FOR ready';
BACKUP STAGE START;
BACKUP STAGE FLUSH;
BACKUP STAGE BLOCK_DDL;
BACKUP STAGE END;
disconnect con2;

--echo #
connection default;
UNLOCK TABLES;

--echo #
connection con1;
reap;
UNLOCK TABLES;
disconnect con1;

--echo #
connection default;
DROP TABLE t1;
SET DEBUG_SYNC= 'RESET';