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-- C93004D.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 WHEN AN EXCEPTION IS RAISED DURING THE ACTIVATION OF A

-- TASK, OTHER TASKS ARE UNAFFECTED.

-- THIS TEST CHECKS THE CASE IN WHICH SOME OF THE OTHER TASKS ARE 

-- PERHAPS ACTIVATED BEFORE THE EXCEPTION OCCURS AND SOME TASKS ARE 

-- PERHAPS ACTIVATED AFTER.

-- THE ENCLOSING BLOCK RECEIVES TASKING_ERROR.

-- CHECK THAT TASKS WAITING FOR ENTRIES OF SUCH TASKS RECEIVE

-- TASKING_ERROR.

-- R. WILLIAMS 8/6/86

-- PWN 11/30/94 REMOVED PRAGMA PRIORITY INSTANCES FOR ADA 9X.

WITH SYSTEM; USE SYSTEM;

WITH REPORT; USE REPORT;

PROCEDURE C93004D IS

BEGIN

     TEST ( "C93004D", "CHECK THAT WHEN AN EXCEPTION IS RAISED " &

                       "DURING ACTIVATION OF A TASK, OTHER TASKS " &

                       "ARE NOT AFFECTED. IN THIS TEST, SOME OF THE " &

                       "TASKS ARE PERHAPS ACTIVATED BEFORE THE " &

                       "EXCEPTION OCCURS AND SOME PERHAPS AFTER" );

     DECLARE

          TASK T0 IS

               ENTRY E;

          END T0;

          TASK TYPE T1 IS

          END T1;

          TASK TYPE T2 IS

               ENTRY E;

          END T2;

          ARR_T2: ARRAY(INTEGER RANGE 1..4) OF T2;

          TYPE AT1 IS ACCESS T1;

          TASK BODY T0 IS

          BEGIN

               ACCEPT E;

          END T0;

          PACKAGE START_T1 IS      -- THIS PACKAGE TO AVOID ACCESS

          END START_T1;            -- BEFORE ELABORATION ON T1.

          TASK BODY T1 IS

          BEGIN

               DECLARE   -- THIS BLOCK TO CHECK THAT T1BIS TERMINATES.

                    TASK T1BIS IS

                    END T1BIS;

                    TASK BODY T1BIS IS

                    BEGIN

                         ARR_T2(IDENT_INT(2)).E;

                         FAILED ("RENDEZVOUS COMPLETED - T3");

                    EXCEPTION

                         WHEN TASKING_ERROR =>

                              NULL;

                         WHEN OTHERS =>

                              FAILED("ABNORMAL EXCEPTION - T3");

                    END T1BIS;

               BEGIN

                    NULL;

               END;

               ARR_T2(IDENT_INT(2)).E;   -- ARR_T2(2) IS NOW 

                                         -- TERMINATED.

               FAILED ("RENDEZVOUS COMPLETED WITHOUT ERROR - T1");

          EXCEPTION

               WHEN TASKING_ERROR =>

                    NULL;

               WHEN OTHERS =>

                    FAILED("ABNORMAL EXCEPTION - T1");

          END;

          PACKAGE BODY START_T1 IS

               V_AT1 : AT1 := NEW T1;

          END START_T1;

          TASK BODY T2 IS

               I : POSITIVE := IDENT_INT(0); -- RAISE CONSTRAINT_ERROR.

          BEGIN

               IF I /= IDENT_INT(2) OR I = IDENT_INT(1) + 1 THEN

                    FAILED("T2 ACTIVATED OK");

               END IF;

          END T2;

          TASK T3 IS

               ENTRY E;

          END T3;

          TASK BODY T3 IS

          BEGIN     -- T3 MUST BE ACTIVATED OK.

               ACCEPT E;

          END T3;

     BEGIN -- T0, ARR_T2 (1 .. 4), T3 ACTIVATED HERE.

          FAILED ("TASKING_ERROR NOT RAISED IN MAIN");

          T3.E;          -- CLEAN UP.

          T0.E;

     EXCEPTION

          WHEN TASKING_ERROR =>

               BEGIN

                    T3.E;

                    T0.E;

               EXCEPTION

                    WHEN TASKING_ERROR =>

                         FAILED ("T0 OR T3 NOT ACTIVATED");

               END;

          WHEN CONSTRAINT_ERROR =>

               FAILED ("CONSTRAINT_ERROR RAISED IN MAIN");

          WHEN OTHERS =>

               FAILED ("ABNORMAL EXCEPTION IN MAIN-2");

     END;

     RESULT;

END C93004D;