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# This file is used by auth_sec.acl_table_read_concurrency added as part of
# wl#14087. The test focuses on concurrency tests with read row lock on ACL
# tables.
#
# Does following:
# Case 1:
# - Run SELECT on ACL table fetching row related to user 'u2'.
# - Run a concurrent SELECT ... FOR UPDATE fetch the same row for user 'u2'.
#
# Case 2:
# - Run SELECT ... SHARE MODE on ACL table fetching row related to user # 'u2'.
# - Run a concurrent SELECT ... FOR UPDATE fetch the same row for user 'u2'.
echo # Run the test for all isolation level for table $acl_table;
let $c=1;
while($c <= 4)
{
let isolation_level = `$get_next_isolation`;
connection read_con;
echo "Case 1.$c: Start a transaction in $isolation_level";
eval SET TRANSACTION ISOLATION LEVEL $isolation_level;
START TRANSACTION;
eval SELECT $column_name FROM $acl_table WHERE $column_name='u2';
echo # Make sure no read row lock is held on row 'u2'.
eval $query_row_locks;
echo "Allow the same row to be read for update by SELECT FOR UPDATE"
connection update_con;
eval SELECT $column_name FROM $acl_table
WHERE $column_name='u2' FOR UPDATE;
echo # Make sure X record locks are held on row 'u2';
eval $query_row_locks;
connection read_con;
COMMIT;
echo "Case 1.$c: Using $isolation_level with SELECT LOCK IN SHARE MODE";
connection read_con;
eval SET TRANSACTION ISOLATION LEVEL $isolation_level;
START TRANSACTION;
eval SELECT $column_name FROM $acl_table
WHERE $column_name='u2' LOCK IN SHARE MODE;
echo # Make sure no read row lock is held on row 'u2'.
eval $query_row_locks;
echo "Allow the same row to be read for update by SELECT FOR UPDATE"
connection update_con;
eval SELECT $column_name FROM $acl_table
WHERE $column_name='u2' FOR UPDATE;
echo # Make sure X record locks are held on row 'u2';
eval $query_row_locks;
connection read_con;
COMMIT;
inc $c;
}
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