- parent->set_host(bob)->vetoable_start();
- write_output->set_disk(bob->get_disks().front())->vetoable_start();
- read_input->set_disk(carl->get_disks().front())->vetoable_start();
- child->set_host(carl)->vetoable_start();
+ parent->set_host(bob)->start();
+ write_output->set_disk(bob->get_disks().front())->start();
+ read_input->set_disk(carl->get_disks().front())->start();
+ child->set_host(carl)->start();