start_domain:Vc_domain_ops.dops_callback_fn ->
pause_domain:Vc_domain_ops.dops_callback_fn ->
resume_domain:Vc_domain_ops.dops_callback_fn ->
start_domain:Vc_domain_ops.dops_callback_fn ->
pause_domain:Vc_domain_ops.dops_callback_fn ->
resume_domain:Vc_domain_ops.dops_callback_fn ->