Summary: 1. add atomic_flag_test_and_set and atomic_flag_clear 2. add typedef memory_order 3. add atomic_flag Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
Summary: 1. add atomic_flag_test_and_set and atomic_flag_clear 2. add typedef memory_order 3. add atomic_flag Signed-off-by: chenrun1 <chenrun1@xiaomi.com>