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File : a-excpol.adb


------------------------------------------------------------------------------
--                                                                          --
--                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
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--                   A D A . E X C E P T I O N S . P O L L                  --
--                (version supporting asynchronous abort test)              --
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------------------------------------------------------------------------------

--  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 and HP/UX currently use this file

with System.Soft_Links;
--  used for Check_Abort_Status

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;