Revert "t"

This reverts commit 5cc255a06f92a392b2bf065ddaeabb2ff51f37ae.
Revert "test"

This reverts commit e3e54fee4535a0d8e200b61fd31f788eb7599641.
Revert "qdio"

This reverts commit ea34aa3fc629db0ccc892b530fd053399ebab7e2.