------------------------------------------------------------------------------
--                                                                          --
--                           POLYORB COMPONENTS                             --
--                                                                          --
--                A W S . R E S O U R C E S . S T R E A M S                 --
--                                                                          --
--                                 S p e c                                  --
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--         Copyright (C) 2002-2012, Free Software Foundation, Inc.          --
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-- This is free software;  you can redistribute it  and/or modify it  under --
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--                  PolyORB is maintained by AdaCore                        --
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------------------------------------------------------------------------------

package AWS.Resources.Streams is

   use Ada;

   type Stream_Type is abstract tagged limited private;

   type Stream_Access is access all Stream_Type'Class;

   function End_Of_File
     (Resource : Stream_Type)
      return Boolean
      is abstract;

   procedure Read
     (Resource : in out Stream_Type;
      Buffer   :    out Stream_Element_Array;
      Last     :    out Stream_Element_Offset)
      is abstract;

   procedure Close (File : in out Stream_Type)
      is abstract;

   procedure Create
     (File   :    out File_Type;
      Buffer : Stream_Access);
   pragma Inline (Create);
   --  Create the resource from user defined resource.

private

   type Stream_Type is abstract new Resources.File_Tagged with null record;

end AWS.Resources.Streams;
