gcc/ada/a-synbar.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --             A D A . S Y N C H R O N O U S _ B A R R I E R S              --
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   7 --                                  S p e c                                 --
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   9 --          Copyright (C) 1992-2011, Free Software Foundation, Inc.         --
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  11 -- This specification is derived from the Ada Reference Manual for use with --
  12 -- GNAT. The copyright notice above, and the license provisions that follow --
  13 -- apply solely to the  contents of the part following the private keyword. --
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  22 -- As a special exception under Section 7 of GPL version 3, you are granted --
  23 -- additional permissions described in the GCC Runtime Library Exception,   --
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  26 -- You should have received a copy of the GNU General Public License and    --
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  31 -- GNAT was originally developed  by the GNAT team at  New York University. --
  32 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  33 --                                                                          --
  34 ------------------------------------------------------------------------------
  35
  36 package Ada.Synchronous_Barriers is
  37    pragma Preelaborate (Synchronous_Barriers);
  38
  39    subtype Barrier_Limit is Positive range 1 .. Positive'Last;
  40
  41    type Synchronous_Barrier (Release_Threshold : Barrier_Limit) is
  42       limited private;
  43
  44    procedure Wait_For_Release
  45      (The_Barrier : in out Synchronous_Barrier;
  46       Notified    : out Boolean);
  47
  48 private
  49    protected type Synchronous_Barrier (Release_Threshold : Barrier_Limit) is
  50       entry Wait (Notified : out Boolean);
  51    private
  52       Keep_Open : Boolean := False;
  53    end Synchronous_Barrier;
  54 end Ada.Synchronous_Barriers;