gcc/ada/a-astaco.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME COMPONENTS                          --
   4 --                                                                          --
   5 --        A D A . A S Y N C H R O N O U S _ T A S K _ C O N T R O L         --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 -- This specification is adapted from the Ada Reference Manual for use with --
  10 -- GNAT.  In accordance with the copyright of that document, you can freely --
  11 -- copy and modify this specification,  provided that if you redistribute a --
  12 -- modified version,  any changes that you have made are clearly indicated. --
  13 --                                                                          --
  14 ------------------------------------------------------------------------------
  15
  16    --  This unit is not implemented in typical GNAT implementations that
  17    --  lie on top of operating systems, because it is infeasible to implement
  18    --  in such environments. The RM anticipates this situation (RM D.11(10)),
  19    --  and permits an implementation to leave this unimplemented even if the
  20    --  Real-Time Systems annex is fully supported.
  21
  22    --  If a target environment provides appropriate support for this package,
  23    --  then the Unimplemented_Unit pragma should be removed from this spec,
  24    --  and an appropriate body provided. The framework for such a body is
  25    --  included in the distributed sources.
  26
  27 with Ada.Task_Identification;
  28
  29 package Ada.Asynchronous_Task_Control is
  30
  31    pragma Unimplemented_Unit;
  32
  33    procedure Hold (T : Ada.Task_Identification.Task_Id);
  34
  35    procedure Continue (T : Ada.Task_Identification.Task_Id);
  36
  37    function Is_Held (T : Ada.Task_Identification.Task_Id) return Boolean;
  38
  39 end Ada.Asynchronous_Task_Control;