| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
| -- -- |
| -- A D A . E X C E P T I O N S . P O L L -- |
| -- (version supporting asynchronous abort test) -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2010, Free Software Foundation, Inc. -- |
| -- -- |
| -- GNARL 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/>. -- |
| -- -- |
| -- GNARL was developed by the GNARL team at Florida State University. -- |
| -- Extensive contributions were provided by Ada Core Technologies, Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This version is for targets that do not support per-thread asynchronous |
| -- signals. On such targets, we require compilation with the -gnatP switch |
| -- that activates periodic polling. Then in the body of the polling routine |
| -- we test for asynchronous abort. |
| |
| -- Windows, HPUX 10 and VMS currently use this file |
| |
| pragma Warnings (Off); |
| -- Allow withing of non-Preelaborated units in Ada 2005 mode where this |
| -- package will be categorized as Preelaborate. See AI-362 for details. |
| -- It is safe in the context of the run-time to violate the rules! |
| |
| with System.Soft_Links; |
| |
| pragma Warnings (On); |
| |
| separate (Ada.Exceptions) |
| |
| ---------- |
| -- Poll -- |
| ---------- |
| |
| procedure Poll is |
| begin |
| -- Test for asynchronous abort on each poll |
| |
| if System.Soft_Links.Check_Abort_Status.all /= 0 then |
| raise Standard'Abort_Signal; |
| end if; |
| end Poll; |
