-- C93005C.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 IF AN EXCEPTION IS RAISED IN A DECLARATIVE PART OR PACKAGE -- SPECIFICATION, A TASK DECLARED IN THE SAME DECLARATIVE PART BECOMES -- COMPLETED BEFORE IT HAS BEEN ACTIVATED; ANY TASKS AWAITING A -- RENDEZVOUS WITH THE COMPLETED RECEIVE TASKING_ERROR. -- CASE 1: TASKS IN DECLARATIVE PART OF A BLOCK AND PACKAGE -- SPECIFICATION. THE TASKS DEPEND ON THE DECLARATIVE PART. -- RAC 19-MAR-1985 -- JBG 06/03/85 -- EG 10/30/85 ELIMINATE THE USE OF NUMERIC_ERROR IN TEST. -- PWN 09/11/94 REMOVED PRAGMA PRIORITY FOR ADA 9X. WITH REPORT; USE REPORT; WITH SYSTEM; USE SYSTEM; PRAGMA ELABORATE (REPORT); PACKAGE C93005C_PK1 IS -- THIS TYPE OF TASK IS ALWAYS UNACTIVATED. TASK TYPE UNACTIVATED IS ENTRY E; END UNACTIVATED; TYPE ACC_UNACTIVATED IS ACCESS UNACTIVATED; -- ******************************************* -- DEFINITIONS FOR MUST NOT BE TERMINATED TASKS -- ******************************************* -- -- THIS SET OF DECLARATIONS DEFINES A RECORD TYPE MNT (MUST NOT -- TERMINATE). WHENEVER SUCH A RECORD IS DECLARED, A COUNT IS -- INCREMENTED AND A TASK IS CREATED. THE TASK WILL DECREMENT THE -- COUNT UNLESS IT IS INCORRECTLY AND PREMATURELY TERMINATED. -- THE ROUTINE CHECK IS CALLED TO VERIFY WHETHER THE COUNT -- HAS RETURNED TO 0 (ALL MNT TASKS GOT A CHANCE TO DO THEIR -- DECREMENT). -- AN MNT TASK. SUCH TASKS MUST NOT BE TERMINATED -- BY ANYONE BUT THEMSELVES. -- TASK TYPE MNT_TASK IS END MNT_TASK; FUNCTION F RETURN INTEGER; -- THE RECORD THAT IS DECLARED TO HOLD AN MNT TASK -- AND FORCE CALLING F BEFORE CREATING THE TASK. -- F INCREMENTS THE COUNT, THE TASK DECREMENTS THE -- COUNT. -- TYPE MNT IS RECORD DUMMY : INTEGER := F; T : MNT_TASK; END RECORD; PROCEDURE CHECK; -- ******************************************* -- END OF DEFINITIONS FOR MUST NOT BE TERMINATED TASKS -- ******************************************* END C93005C_PK1; PACKAGE BODY C93005C_PK1 IS -- THIS TASK IS CALLED IF AN UNACTIVATED TASK -- IS EVER INCORRECTLY ACTIVATED. IT REPORTS FAILURE. TASK T IS ENTRY E; END; -- *********************************************** -- START OF DEFINITIONS FOR MUST NOT TERMINATE TASKS -- *********************************************** -- COUNT OF TASKS THAT MUST NOT BE TERMINATED AND -- ARE STILL ACTIVE. MNT_COUNT : INTEGER := 0; -- TASK TO SYNCHRONIZE THE MNT_COUNT VARIABLE TASK MNT_COUNTER IS ENTRY INCR; ENTRY DECR; END MNT_COUNTER; -- SYNCHRONIZING TASK TASK BODY MNT_COUNTER IS BEGIN LOOP SELECT ACCEPT INCR DO MNT_COUNT := MNT_COUNT +1; END INCR; OR ACCEPT DECR DO MNT_COUNT := MNT_COUNT -1; END DECR; OR TERMINATE; END SELECT; END LOOP; END MNT_COUNTER; -- INCREMENT THE MNT_COUNT WHEN A TASK IS CREATED -- FUNCTION F RETURN INTEGER IS BEGIN MNT_COUNTER.INCR; RETURN 0; END F; -- CHECK THAT THE MUST NOT BE TERMINATED TASKS ARE -- NOT YET TERMINATED AND THAT THE SYNCRHONIZING TASK -- ITSELF IS NOT TERMINATED. -- PROCEDURE CHECK IS BEGIN IF MNT_COUNT /= 0 OR MNT_COUNTER'TERMINATED THEN FAILED ("SOME MUST-NOT-TERMINATE TASK WAS PREMATURELY " & "TERMINATED"); END IF; -- RESET THE COUNT FOR THE NEXT SUBTEST: MNT_COUNT := 0; END CHECK; -- A MUST NOT BE TERMINATED TASK. DELAY LONG ENOUGH -- TO BE THE LAST TASK OF A SCOPE TO TERMINATE. THEN -- DECREMENT THE COUNTER. -- TASK BODY MNT_TASK IS BEGIN DELAY 5.0; MNT_COUNTER.DECR; END MNT_TASK; -- *********************************************** -- END OF DEFINITIONS FOR MUST NOT TERMINATE TASKS -- *********************************************** TASK BODY T IS BEGIN LOOP SELECT ACCEPT E DO FAILED ("SOME TYPE U TASK WAS ACTIVATED"); END E; OR TERMINATE; END SELECT; END LOOP; END T; -- TASKS OF TYPE UNACTIVATED MUST NEVER BE ACTIVATED. -- TASK BODY UNACTIVATED IS BEGIN T.E; END UNACTIVATED; END C93005C_PK1; WITH REPORT, C93005C_PK1; USE REPORT, C93005C_PK1; WITH SYSTEM; USE SYSTEM; PROCEDURE C93005C IS BEGIN TEST("C93005C", "TEST EXCEPTIONS TERMINATE NOT YET ACTIVATED " & "TASKS"); COMMENT("SUBTEST 1: TASKS IN DECL PART OF A BLOCK AND A PACKAGE " & "SPEC"); COMMENT(" THE TASKS DEPEND ON THE DECLARATIVE PART"); B1: DECLARE X : MNT; BEGIN B2: BEGIN B3: DECLARE TYPE ACC_MNT IS ACCESS MNT; T1 : UNACTIVATED; M2 : ACC_MNT := NEW MNT; PACKAGE RAISES_EXCEPTION IS T2 : UNACTIVATED; M3 : ACC_MNT := NEW MNT; I : POSITIVE := IDENT_INT(0); -- RAISE -- CONSTRAINT_ERROR EXCEPTION END RAISES_EXCEPTION; USE RAISES_EXCEPTION; BEGIN -- WOULD HAVE BEEN ACTIVATED HERE IF EQUAL (I, I) THEN FAILED ("EXCEPTION NOT RAISED"); END IF; EXCEPTION WHEN OTHERS => FAILED ("EXCEPTION RAISED IN WRONG SCOPE"); END B3; EXCEPTION WHEN CONSTRAINT_ERROR => COMMENT ("SUBTEST 1 COMPLETED"); WHEN OTHERS => FAILED ("WRONG EXCEPTION RAISED IN B2"); END B2; END B1; CHECK; RESULT; EXCEPTION WHEN OTHERS => FAILED ("EXCEPTION NOT ABSORBED"); RESULT; END C93005C;