1 ------------------------------------------------------------------------------
3 -- GNAT LIBRARY COMPONENTS --
5 -- ADA.CONTAINERS.UNBOUNDED_SYNCHRONIZED_QUEUES --
9 -- Copyright (C) 2011, Free Software Foundation, Inc. --
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. --
15 -- GNAT is free software; you can redistribute it and/or modify it under --
16 -- terms of the GNU General Public License as published by the Free Soft- --
17 -- ware Foundation; either version 3, or (at your option) any later ver- --
18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
20 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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, --
24 -- version 3.1, as published by the Free Software Foundation. --
26 -- You should have received a copy of the GNU General Public License and --
27 -- a copy of the GCC Runtime Library Exception along with this program; --
28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
29 -- <http://www.gnu.org/licenses/>. --
31 -- This unit was originally developed by Matthew J Heaney. --
32 ------------------------------------------------------------------------------
35 with Ada.Containers.Synchronized_Queue_Interfaces;
36 with Ada.Finalization;
39 with package Queue_Interfaces is
40 new Ada.Containers.Synchronized_Queue_Interfaces (<>);
42 Default_Ceiling : System.Any_Priority := System.Priority'Last;
44 package Ada.Containers.Unbounded_Synchronized_Queues is
47 package Implementation is
49 -- All identifiers in this unit are implementation defined
51 pragma Implementation_Defined;
53 type List_Type is tagged limited private;
56 (List : in out List_Type;
57 New_Item : Queue_Interfaces.Element_Type);
60 (List : in out List_Type;
61 Element : out Queue_Interfaces.Element_Type);
63 function Length (List : List_Type) return Count_Type;
65 function Max_Length (List : List_Type) return Count_Type;
70 type Node_Access is access Node_Type;
72 type Node_Type is limited record
73 Element : Queue_Interfaces.Element_Type;
77 type List_Type is new Ada.Finalization.Limited_Controlled with record
78 First, Last : Node_Access;
79 Length : Count_Type := 0;
80 Max_Length : Count_Type := 0;
84 procedure Finalize (List : in out List_Type);
88 protected type Queue (Ceiling : System.Any_Priority := Default_Ceiling)
89 with Priority => Ceiling is new Queue_Interfaces.Queue with
92 entry Enqueue (New_Item : Queue_Interfaces.Element_Type);
95 entry Dequeue (Element : out Queue_Interfaces.Element_Type);
98 function Current_Use return Count_Type;
101 function Peak_Use return Count_Type;
105 List : Implementation.List_Type;
109 end Ada.Containers.Unbounded_Synchronized_Queues;