| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1992-2005, 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 2, or (at your option) any later ver- -- |
| -- sion. GNARL 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. See the GNU General Public License -- |
| -- for more details. You should have received a copy of the GNU General -- |
| -- Public License distributed with GNARL; see file COPYING. If not, write -- |
| -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- |
| -- Boston, MA 02110-1301, USA. -- |
| -- -- |
| -- As a special exception, if other files instantiate generics from this -- |
| -- unit, or you link this unit with other files to produce an executable, -- |
| -- this unit does not by itself cause the resulting executable to be -- |
| -- covered by the GNU General Public License. This exception does not -- |
| -- however invalidate any other reasons why the executable file might be -- |
| -- covered by the GNU Public License. -- |
| -- -- |
| -- 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. |
| |
| -- NT, OS/2, HPUX/DCE and SCO 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; |
| -- used for Check_Abort_Status |
| |
| 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; |
