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