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-- C97301C.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 TIMED_ENTRY_CALL DELAYS FOR AT LEAST THE SPECIFIED 

-- AMOUNT OF TIME IF A RENDEVOUS IS NOT POSSIBLE.

-- CASE  C:  AN ACCEPT STATEMENT FOR THE CALLED ENTRY HAS NOT BEEN

--           REACHED.

-- RJW 3/31/86

with Impdef;

WITH REPORT; USE REPORT;

WITH CALENDAR; USE CALENDAR;

PROCEDURE C97301C IS

     OR_BRANCH_TAKEN : BOOLEAN := FALSE;

BEGIN

     TEST ("C97301C", "CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT " &

                      "LEAST THE SPECIFIED AMOUNT OF TIME WHEN AN " &

                      "ACCEPT STATEMENT FOR THE CALLED ENTRY HAS " &

                      "NOT BEEN REACHED" );

     DECLARE

          START_TIME : TIME;

          STOP_TIME : TIME;

          WAIT_TIME  : DURATION :=  3.0 * Impdef.One_Second;

          TASK  T  IS

               ENTRY NO_SPIN;

               ENTRY DO_IT_NOW_OR_WAIT;

          END  T;

          TASK BODY  T  IS

          BEGIN

               ACCEPT NO_SPIN;

               ACCEPT DO_IT_NOW_OR_WAIT;

          END  T;

     BEGIN

          START_TIME := CLOCK;

          SELECT

               T.DO_IT_NOW_OR_WAIT;

               FAILED("RENDEZVOUS OCCURRED");

               ABORT T;

          OR

                                      -- THIS BRANCH MUST BE CHOSEN.

               DELAY WAIT_TIME;

               STOP_TIME := CLOCK;

               IF STOP_TIME >= (WAIT_TIME + START_TIME) THEN

                    NULL;

               ELSE

                    FAILED ( "INSUFFICIENT DELAY" );

               END IF;

               T.NO_SPIN;

               OR_BRANCH_TAKEN := TRUE;

               COMMENT( "OR_BRANCH TAKEN" );

               T.DO_IT_NOW_OR_WAIT;

          END SELECT;

     EXCEPTION

          WHEN TASKING_ERROR =>

               FAILED ( "TASKING ERROR" );

     END;

                                     -- END OF BLOCK CONTAINING TIMED 

                                     -- ENTRY CALL.

     -- BY NOW, TASK T IS TERMINATED (AND THE NONLOCALS UPDATED).

     IF OR_BRANCH_TAKEN THEN

          NULL;

     ELSE

          FAILED( "RENDEZVOUS ATTEMPTED" );

     END IF;

     RESULT;

END C97301C;