Reimplemented in EmulatorPC< Prod_actor, Cons_actor >, EmulatorPC< Prod_actor, Cons_actor >, EmulatorPC< Prod_actor, Cons_actor >, EmulatorPC< Prod_actor, Cons_actor >, EmulatorPFC< Prod_actor, Filt_actor, Cons_actor >, and EmulatorPFC< Prod_actor, Filt_actor, Cons_actor >.