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-- C97112A.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.
--*
-- CHECK THAT A DELAY STATEMENT IS ALLOWED IN THE SEQUENCE OF STATEMENTS
-- OF A SELECT ALTERNATIVE OF A SELECTIVE WAIT CONTAINING A TERMINATE
-- ALTERNATIVE OR AN ELSE PART.
-- WRG 7/9/86
with Impdef;
WITH REPORT; USE REPORT;
WITH CALENDAR; USE CALENDAR;
PROCEDURE C97112A IS
ACCEPT_ALTERNATIVE_TAKEN : BOOLEAN := FALSE;
BEGIN
TEST ("C97112A", "CHECK THAT A DELAY STATEMENT IS ALLOWED IN " &
"THE SEQUENCE OF STATEMENTS OF A SELECT " &
"ALTERNATIVE OF A SELECTIVE WAIT CONTAINING A " &
"TERMINATE ALTERNATIVE OR AN ELSE PART");
--------------------------------------------------
A: DECLARE
TASK T IS
ENTRY E;
END T;
TASK BODY T IS
BEFORE, AFTER : TIME;
BEGIN
SELECT
ACCEPT E;
ACCEPT_ALTERNATIVE_TAKEN := TRUE;
BEFORE := CLOCK;
DELAY 10.0 * Impdef.One_Second;
AFTER := CLOCK;
IF AFTER - BEFORE < 10.0 * Impdef.One_Second THEN
FAILED ("INSUFFICIENT DELAY (A)");
END IF;
OR
TERMINATE;
END SELECT;
END T;
BEGIN
T.E;
END A;
IF NOT ACCEPT_ALTERNATIVE_TAKEN THEN
FAILED ("ACCEPT ALTERNATIVE NOT TAKEN");
END IF;
--------------------------------------------------
B: DECLARE
TASK T IS
ENTRY E;
END T;
TASK BODY T IS
BEFORE, AFTER : TIME;
BEGIN
--ENSURE THAT E HAS BEEN CALLED BEFORE PROCEEDING:
WHILE E'COUNT = 0 LOOP
DELAY 1.0 * Impdef.One_Second;
END LOOP;
SELECT
ACCEPT E;
BEFORE := CLOCK;
DELAY 10.0 * Impdef.One_Second;
AFTER := CLOCK;
IF AFTER - BEFORE < 10.0 * Impdef.One_Second THEN
FAILED ("INSUFFICIENT DELAY (B-1)");
END IF;
ELSE
FAILED ("ELSE PART EXECUTED (B-1)");
END SELECT;
SELECT
ACCEPT E;
FAILED ("ACCEPT STATEMENT EXECUTED (B-2)");
ELSE
BEFORE := CLOCK;
DELAY 10.0 * Impdef.One_Second;
AFTER := CLOCK;
IF AFTER - BEFORE < 10.0 * Impdef.One_Second THEN
FAILED ("INSUFFICIENT DELAY (B-2)");
END IF;
END SELECT;
EXCEPTION
WHEN OTHERS =>
FAILED ("EXCEPTION RAISED");
END T;
BEGIN
T.E;
END B;
--------------------------------------------------
RESULT;
END C97112A;
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