4 type Future is synchronized interface;
5 type Any_Future is access all Future;
7 procedure Get (This : in out Future; P : out Data) is abstract;
8 procedure Set (This : in out Future; P : in Data) is abstract;
10 type Reusable_Future is synchronized interface and Future;
11 type Any_Reusable_Future is access all Reusable_Future'Class;