+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNU ADA 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 and time slicing) --
--- --
--- B o d y --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1992-2000, 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, 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 or that do not handle async timers properly. 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 and
--- yield periodically.
-
--- HP-UX and SCO currently use this file
-
-with System.Soft_Links;
--- used for Check_Abort_Status
-
-separate (Ada.Exceptions)
-
-----------
--- Poll --
-----------
-
-procedure Poll is
-begin
- if Counter = 10000 then
- Counter := 0;
- delay 0.0;
- else
- Counter := Counter + 1;
- end if;
-
- -- 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;