| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- System.Atomic_Operations.Test_And_Set -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 2019-2021, 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.Atomic_Primitives; use System.Atomic_Primitives; |
| |
| package body System.Atomic_Operations.Test_And_Set is |
| |
| ------------------------- |
| -- Atomic_Test_And_Set -- |
| ------------------------- |
| |
| function Atomic_Test_And_Set |
| (Item : aliased in out Test_And_Set_Flag) return Boolean is |
| begin |
| return Atomic_Test_And_Set (Item'Address); |
| end Atomic_Test_And_Set; |
| |
| ------------------ |
| -- Atomic_Clear -- |
| ------------------ |
| |
| procedure Atomic_Clear |
| (Item : aliased in out Test_And_Set_Flag) is |
| begin |
| Atomic_Clear (Item'Address); |
| end Atomic_Clear; |
| |
| ------------------ |
| -- Is_Lock_Free -- |
| ------------------ |
| |
| function Is_Lock_Free (Item : aliased Test_And_Set_Flag) return Boolean is |
| pragma Unreferenced (Item); |
| begin |
| return True; |
| end Is_Lock_Free; |
| |
| end System.Atomic_Operations.Test_And_Set; |
