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-- C97116A.ADA
-- 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 GUARD CONDITIONS IN A SELECTIVE WAIT STATEMENT
-- ARE NOT RE-EVALUATED DURING THE WAIT.
-- HISTORY:
-- WRG 7/10/86 CREATED ORIGINAL TEST.
-- RJW 5/15/90 REMOVED SHARED VARIABLES.
with Impdef;
WITH REPORT; USE REPORT;
PROCEDURE C97116A IS
GUARD_EVALUATIONS : NATURAL := 0;
FUNCTION GUARD RETURN BOOLEAN IS
BEGIN
GUARD_EVALUATIONS := GUARD_EVALUATIONS + 1;
RETURN FALSE;
END GUARD;
FUNCTION SO_LONG RETURN DURATION IS
BEGIN
RETURN 20.0;
END SO_LONG;
BEGIN
TEST ("C97116A", "CHECK THAT THE GUARD CONDITIONS IN A " &
"SELECTIVE WAIT STATEMENT ARE NOT RE-EVALUATED " &
"DURING THE WAIT");
DECLARE
TASK T IS
ENTRY E;
END T;
TASK BODY T IS
BEGIN
SELECT
ACCEPT E;
FAILED ("ACCEPTED NONEXISTENT CALL TO E");
OR WHEN GUARD =>
DELAY 0.0;
FAILED ("EXECUTED ALTERNATIVE CLOSED BY FALSE " &
"GUARD FUNCTION" );
OR
DELAY SO_LONG * Impdef.One_Second;
END SELECT;
EXCEPTION
WHEN OTHERS =>
FAILED ("EXCEPTION RAISED");
END T;
TASK GET_CPU;
TASK BODY GET_CPU IS
BEGIN
WHILE NOT T'TERMINATED LOOP
DELAY 1.0 * Impdef.One_Second;
END LOOP;
END GET_CPU;
BEGIN
NULL;
END;
IF GUARD_EVALUATIONS /= 1 THEN
FAILED ("GUARD EVALUATED" &
NATURAL'IMAGE(GUARD_EVALUATIONS) & " TIMES");
END IF;
RESULT;
END C97116A;
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