task_state_is_uninitialized(ts)
task_state_is_initialized(ts)
task_state_is_active(ts)
task_state_active_waiting_for(ts)
task_state_active_timeout(ts)
task_state_is_normally_terminated(ts)
task_state_normally_terminated_result(ts)
task_state_is_abnormally_terminated(ts)
task_state_abnormally_terminated_reason(ts)
Return a state variable associated with the task state object ts.