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-- C9A010A.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.

--*

-- TEST ABORT DURING RENDEZVOUS

-- ABORTING AN ABNORMAL (NOT YET TERMINATED) TASK.

-- JEAN-PIERRE ROSEN 09 MARCH 1984

-- JBG 6/1/84

-- JWC 6/28/85   RENAMED FROM C9A009E-B.ADA

-- PWN 01/31/95  REMOVED PRAGMA PRIORITY FOR ADA 9X.

WITH SYSTEM; USE SYSTEM;

WITH REPORT; USE REPORT;

PROCEDURE C9A010A IS

BEGIN

     TEST("C9A010A", "ABORTING AN ABNORMAL TASK");

     DECLARE

     -- T1 CALLS T2.  WHILE IN RENDEVOUS, T2 ABORTS T1 AND WAITS FOR A

     -- CALL FROM THE MAIN PROGRAM.  WHEN THE CALL IS ACCEPTED, THE MAIN

     -- PROGRAM AGAIN ABORTS T1, WHICH IS NOW ABNORMAL, SINCE T1 HAS NOT

     -- YET COMPLETED ITS RENDEVOUS WITH T2.

          TASK T1 IS

          END T1;

          TASK T2 IS

               ENTRY E1;

               ENTRY E2;

          END T2;

          TASK BODY T1 IS

          BEGIN

               T2.E1;

               FAILED("T1 NOT ABORTED");

          EXCEPTION

               WHEN TASKING_ERROR =>

                    FAILED ("TASKING_ERROR IN T1");

               WHEN OTHERS =>

                    FAILED ("OTHER EXCEPTION IN T1");

          END T1;

          TASK BODY T2 IS

          BEGIN

               ACCEPT E1 DO

                    ABORT  T1;

                    ACCEPT E2;     -- NOTE CALLER REMAINS IN RENDEVOUS

                    ACCEPT E2;     -- UNTIL TWO ENTRY CALLS ACCEPTED

               END E1;

          END T2;

     BEGIN

          T2.E2;    -- ONLY ACCEPTED AFTER T1 HAS BEEN ABORTED.

          ABORT T1; -- T1 IS ABNORMAL BECAUSE IT IS STILL IN RENDEVOUS.

          IF T1'CALLABLE THEN

               FAILED ("T1 CALLABLE AFTER BEING ABORTED");

          END IF;

          IF T1'TERMINATED THEN

               FAILED ("T1 TERMINATED ALTHOUGH IN RENDEVOUS");

          END IF;

          T2.E2; -- T1'S RENDEVOUS CAN NOW COMPLETE; T1 CAN TERMINATE.

     END;

     RESULT;

END C9A010A;