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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT LIBRARY COMPONENTS                          --
--                                                                          --
--               ADA.CONTAINERS.SYNCHRONIZED_QUEUE_INTERFACES               --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--            Copyright (C) 2011, Free Software Foundation, Inc.            --
--                                                                          --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. The copyright notice above, and the license provisions that follow --
-- apply solely to the  contents of the part following the private keyword. --
--                                                                          --
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
-- This unit was originally developed by Matthew J Heaney.                  --
------------------------------------------------------------------------------
 
generic
   type Element_Type is private;
 
package Ada.Containers.Synchronized_Queue_Interfaces is
   pragma Pure;
 
   type Queue is synchronized interface;
 
   procedure Enqueue
     (Container : in out Queue;
      New_Item  : Element_Type) is abstract;
 
   --  ???
   --  This is the official Ada 2012 syntax:
   --  with Synchronization => By_Entry;
 
   --  This is the temporary work-around:
   pragma Implemented (Enqueue, By_Entry);
 
   procedure Dequeue
     (Container : in out Queue;
      Element   : out Element_Type) is abstract;
 
   --  ???
   --  This is the official Ada 2012 syntax:
   --  with Synchronization => By_Entry;
 
   --  This is the temporary work-around:
   pragma Implemented (Dequeue, By_Entry);
 
   function Current_Use (Container : Queue) return Count_Type is abstract;
 
   function Peak_Use (Container : Queue) return Count_Type is abstract;
 
end Ada.Containers.Synchronized_Queue_Interfaces;