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Diffstat (limited to 'gcc-4.9/gcc/testsuite/ada/acats/tests/c9/c974013.a')
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diff --git a/gcc-4.9/gcc/testsuite/ada/acats/tests/c9/c974013.a b/gcc-4.9/gcc/testsuite/ada/acats/tests/c9/c974013.a new file mode 100644 index 000000000..4a930da93 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/ada/acats/tests/c9/c974013.a @@ -0,0 +1,167 @@ +-- C974013.A +-- +-- Grant of Unlimited Rights +-- +-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, +-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained +-- unlimited rights in the software and documentation contained herein. +-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making +-- this public release, the Government intends to confer upon all +-- recipients unlimited rights equal to those held by the Government. +-- These rights include rights to use, duplicate, release or disclose the +-- released technical data and computer software in whole or in part, in +-- any manner and for any purpose whatsoever, and to have or permit others +-- to do so. +-- +-- DISCLAIMER +-- +-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR +-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED +-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE +-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE +-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A +-- PARTICULAR PURPOSE OF SAID MATERIAL. +--* +-- +-- OBJECTIVE: +-- Check that the abortable part of an asynchronous select statement +-- is aborted if it does not complete before the triggering statement +-- completes, where the triggering statement is a delay_until +-- statement. +-- +-- Check that the sequence of statements of the triggering alternative +-- is executed after the abortable part is left. +-- +-- TEST DESCRIPTION: +-- Declare a task with an accept statement containing an asynchronous +-- select with a delay_until triggering statement. Parameterize +-- the accept statement with the amount of time to be added to the +-- current time to be used for the delay. Simulate a time-consuming +-- calculation by declaring a procedure containing an infinite loop. +-- Call this procedure in the abortable part. +-- +-- The delay will expire before the abortable part completes, at which +-- time the abortable part is aborted, and the sequence of statements +-- following the triggering statement is executed. +-- +-- Main test logic is identical to c974001 which uses simple delay +-- +-- +-- CHANGE HISTORY: +-- 06 Dec 94 SAIC ACVC 2.0 +-- 28 Nov 95 SAIC Fixed problems for ACVC 2.0.1. +-- +--! + +with Report; +with ImpDef; +with Ada.Calendar; + +procedure C974013 is + + + --========================================================-- + + function "+" (Left : Ada.Calendar.Time; Right: Duration) + return Ada.Calendar.Time renames Ada.Calendar."+"; + + + Allotted_Time : constant Duration := ImpDef.Switch_To_New_Task; + Calculation_Canceled : exception; + + Count : Integer := 1234; + procedure Lengthy_Calculation is + begin + -- Simulate a non-converging calculation. + loop -- Infinite loop. + Count := (Count + 1) mod 10; + exit when not Report.Equal (Count, Count); -- Condition always false. + delay 0.0; -- abort completion point + end loop; + end Lengthy_Calculation; + + + --========================================================-- + + + task type Timed_Calculation is + entry Calculation (Time_Limit : in Duration); + end Timed_Calculation; + + + task body Timed_Calculation is + Delay_Time : Ada.Calendar.Time; + begin + loop + select + accept Calculation (Time_Limit : in Duration) do + + -- We have to construct an "until" time artificially + -- as we have no control over when the test will be run + -- + Delay_Time := Ada.Calendar.Clock + Time_Limit; + + -- -- + -- Asynchronous select is tested here -- + -- -- + + select + + delay until Delay_Time; -- Time not reached yet, so + -- Lengthy_Calculation starts. + + raise Calculation_Canceled; -- This is executed after + -- Lengthy_Calculation aborted. + + then abort + + Lengthy_Calculation; -- Delay expires before complete, + -- so this call is aborted. + -- Check that the whole of the abortable part is aborted, + -- not just the statement in the abortable part that was + -- executing at the time + Report.Failed ("Abortable part not aborted"); + + end select; + + Report.Failed ("Triggering alternative sequence of " & + "statements not executed"); + + exception -- New Ada 9x: handler within accept + when Calculation_Canceled => + if Count = 1234 then + Report.Failed ("Abortable part did not execute"); + end if; + end Calculation; + or + terminate; + end select; + end loop; + exception + when others => + Report.Failed ("Unexpected exception in Timed_Calculation task"); + end Timed_Calculation; + + + --========================================================-- + + + +begin -- Main program. + + Report.Test ("C974013", "Asynchronous Select: Trigger is delay_until " & + "which completes before abortable part"); + + declare + Timed : Timed_Calculation; -- Task. + begin + Timed.Calculation (Time_Limit => Allotted_Time); -- Asynchronous select + -- inside accept block. + exception + when Calculation_Canceled => + Report.Failed ("wrong exception handler used"); + end; + + Report.Result; + +end C974013; |