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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;