Have the states tell us if we are done yet with their return value, so that we can implement disembarking the worker thread of the object is busy.
Have the states tell us if we are done yet with their return value,
so that we can implement disembarking the worker thread of the object
is busy.



git-svn-id: 7d4b18ab7d176792635d6a7a77dd8cbbea8e8daa@475 d4fa192b-c00b-0410-8231-f00ffab90ce4

wikimedia/operations-debs-varnish,wikimedia/operations-debs-varnish,CartoDB/Varnish-Cache,ssm/pkg-varnish,ssm/pkg-varnish,CartoDB/Varnish-Cache,ssm/pkg-varnish,wikimedia/operations-debs-varnish,ssm/pkg-varnish,ssm/pkg-varnish,wikimedia/operations-debs-varnish,wikimedia/operations-debs-varnish,CartoDB/Varnish-Cache