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-- CB1010A.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 STORAGE_ERROR IS RAISED WHEN STORAGE ALLOCATED TO A TASK

-- IS EXCEEDED.

-- PNH 8/26/85

-- JRK 8/30/85

WITH REPORT; USE REPORT;

PROCEDURE CB1010A IS

     N : INTEGER := IDENT_INT (1);

     M : INTEGER := IDENT_INT (0);

     PROCEDURE OVERFLOW_STACK IS

          A : ARRAY (1 .. 1000) OF INTEGER;

     BEGIN

          N := N + M;

          A (N) := M;

          IF N > M THEN  -- ALWAYS TRUE.

               OVERFLOW_STACK;

          END IF;

          M := A (N);    -- TO PREVENT TAIL RECURSION OPTIMIZATION.

     END OVERFLOW_STACK;

BEGIN

     TEST ("CB1010A", "CHECK THAT STORAGE_ERROR IS RAISED WHEN " &

                      "STORAGE ALLOCATED TO A TASK IS EXCEEDED");

     --------------------------------------------------

     COMMENT ("CHECK TASKS THAT DO NOT HANDLE STORAGE_ERROR " &

              "PRIOR TO RENDEZVOUS");

     DECLARE

          TASK T1 IS

               ENTRY E1;

          END T1;

          TASK BODY T1 IS

          BEGIN

               OVERFLOW_STACK;

               FAILED ("TASK T1 NOT TERMINATED BY STACK OVERFLOW");

          END T1;

     BEGIN

          T1.E1;

          FAILED ("NO EXCEPTION RAISED BY ENTRY CALL T1.E1");

     EXCEPTION

          WHEN TASKING_ERROR =>

               IF N /= 1 OR M /= 0 THEN

                    FAILED ("VALUES OF VARIABLES N OR M ALTERED - 1");

               END IF;

          WHEN OTHERS =>

               FAILED ("WRONG EXCEPTION RAISED BY CALL OF ENTRY E1 " &

                       "OF TERMINATED TASK T1");

     END;

     --------------------------------------------------

     COMMENT ("CHECK TASKS THAT DO HANDLE STORAGE_ERROR PRIOR TO " &

              "RENDEZVOUS");

     N := IDENT_INT (1);

     M := IDENT_INT (0);

     DECLARE

          TASK T2 IS

               ENTRY E2;

          END T2;

          TASK BODY T2 IS

          BEGIN

               OVERFLOW_STACK;

               FAILED ("EXCEPTION NOT RAISED BY STACK OVERFLOW IN " &

                       "TASK T2");

          EXCEPTION

               WHEN STORAGE_ERROR =>

                    ACCEPT E2;

               WHEN OTHERS =>

                    FAILED ("WRONG EXCEPTION RAISED IN TASK T2 BY " &

                            "STACK OVERFLOW");

          END T2;

     BEGIN

          T2.E2;

          IF N /= 1 OR M /= 0 THEN

               FAILED ("VALUES OF VARIABLES N OR M ALTERED - 2");

          END IF;

     EXCEPTION

          WHEN OTHERS =>

               FAILED ("EXCEPTION RAISED BY ENTRY CALL T2.E2");

               ABORT T2;

     END;

     --------------------------------------------------

     COMMENT ("CHECK TASKS THAT DO NOT HANDLE STORAGE_ERROR " &

              "DURING RENDEZVOUS");

     N := IDENT_INT (1);

     M := IDENT_INT (0);

     DECLARE

          TASK T3 IS

               ENTRY E3A;

               ENTRY E3B;

          END T3;

          TASK BODY T3 IS

          BEGIN

               ACCEPT E3A DO

                    OVERFLOW_STACK;

                    FAILED ("EXCEPTION NOT RAISED IN ACCEPT E3A BY " &

                            "STACK OVERFLOW");

               END E3A;

               FAILED ("EXCEPTION NOT PROPOGATED CORRECTLY IN TASK T3");

          EXCEPTION

               WHEN STORAGE_ERROR =>

                    ACCEPT E3B;

               WHEN OTHERS =>

                    FAILED ("WRONG EXCEPTION RAISED IN TASK T3 BY " &

                            "STACK OVERFLOW");

          END T3;

     BEGIN

          T3.E3A;

          FAILED ("NO EXCEPTION RAISED BY ENTRY CALL T3.E3A");

     EXCEPTION

          WHEN STORAGE_ERROR =>

               T3.E3B;

               IF N /= 1 OR M /= 0 THEN

                    FAILED ("VALUES OF VARIABLES N OR M ALTERED - 3");

               END IF;

          WHEN TASKING_ERROR =>

               FAILED ("TASKING_ERROR RAISED BY ENTRY CALL T3.E3A " &

                       "INSTEAD OF STORAGE_ERROR");

               ABORT T3;

          WHEN OTHERS =>

               FAILED ("WRONG EXCEPTION RAISED BY ENTRY CALL T3.E3A");

               ABORT T3;

     END;

     --------------------------------------------------

     RESULT;

END CB1010A;