| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- A D A . F I N A L I Z A T I O N . L I S T _ C O N T R O L L E R -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- |
| -- -- |
| -- 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/>. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with System.Finalization_Implementation; |
| package body Ada.Finalization.List_Controller is |
| |
| package SFI renames System.Finalization_Implementation; |
| |
| -------------- |
| -- Finalize -- |
| -------------- |
| |
| procedure Finalize (Object : in out List_Controller) is |
| use type SFR.Finalizable_Ptr; |
| |
| Last_Ptr : constant SFR.Finalizable_Ptr := Object.Last'Unchecked_Access; |
| |
| begin |
| -- First take note of the fact that finalization of this collection has |
| -- started. |
| |
| Object.F := SFI.Collection_Finalization_Started; |
| |
| -- Then finalize all the objects. Note that finalization can call |
| -- Unchecked_Deallocation on other objects in the same collection, |
| -- which will cause them to be removed from the list if we have not |
| -- gotten to them yet. However, allocation in the collection will raise |
| -- Program_Error, due to the above Collection_Finalization_Started. |
| |
| while Object.First.Next /= Last_Ptr loop |
| SFI.Finalize_One (Object.First.Next.all); |
| end loop; |
| end Finalize; |
| |
| procedure Finalize (Object : in out Simple_List_Controller) is |
| begin |
| SFI.Finalize_List (Object.F); |
| Object.F := null; |
| end Finalize; |
| |
| ---------------- |
| -- Initialize -- |
| ---------------- |
| |
| procedure Initialize (Object : in out List_Controller) is |
| begin |
| Object.F := Object.First'Unchecked_Access; |
| Object.First.Next := Object.Last 'Unchecked_Access; |
| Object.Last.Prev := Object.First'Unchecked_Access; |
| end Initialize; |
| |
| end Ada.Finalization.List_Controller; |