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|
-- C9A007A.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 TASK MAY ABORT A TASK IT DEPENDS ON.
-- RM 5/26/82
-- RM 7/02/82
-- SPS 11/21/82
-- JBG 2/27/84
-- JBG 3/8/84
-- PWN 11/30/94 REMOVED PRAGMA PRIORITY INSTANCES FOR ADA 9X.
-- EDS 08/04/98 ENSURE THAT ABORTED TASKS HAVE TIME TO EFFECT THEIR ABORTIONS.
WITH IMPDEF;
WITH REPORT; USE REPORT;
WITH SYSTEM; USE SYSTEM;
PROCEDURE C9A007A IS
TASK_NOT_ABORTED : BOOLEAN := FALSE;
TEST_VALID : BOOLEAN := TRUE ;
BEGIN
-------------------------------------------------------------------
TEST ( "C9A007A" , "CHECK THAT A TASK MAY ABORT A TASK" &
" IT DEPENDS ON" );
DECLARE
TASK REGISTER IS
ENTRY BIRTHS_AND_DEATHS;
ENTRY SYNC1;
ENTRY SYNC2;
END REGISTER;
TASK BODY REGISTER IS
TASK TYPE SECONDARY IS
ENTRY WAIT_INDEFINITELY;
END SECONDARY;
TASK TYPE T_TYPE1 IS
ENTRY E;
END T_TYPE1;
TASK TYPE T_TYPE2 IS
ENTRY E;
END T_TYPE2;
T_OBJECT1 : T_TYPE1;
T_OBJECT2 : T_TYPE2;
TASK BODY SECONDARY IS
BEGIN
SYNC1;
ABORT T_OBJECT1;
DELAY 0.0;
TASK_NOT_ABORTED := TRUE;
END SECONDARY;
TASK BODY T_TYPE1 IS
TYPE ACCESS_TO_TASK IS ACCESS SECONDARY;
BEGIN
DECLARE
DEPENDENT_BY_ACCESS : ACCESS_TO_TASK :=
NEW SECONDARY ;
BEGIN
NULL;
END;
BIRTHS_AND_DEATHS;
-- DURING THIS SUSPENSION
-- MOST OF THE TASKS
-- ARE ABORTED (FIRST
-- TASK #1 -- T_OBJECT1 --
-- THEN #2 ).
TASK_NOT_ABORTED := TRUE;
END T_TYPE1;
TASK BODY T_TYPE2 IS
TASK INNER_TASK IS
ENTRY WAIT_INDEFINITELY;
END INNER_TASK;
TASK BODY INNER_TASK IS
BEGIN
SYNC2;
ABORT T_OBJECT2;
DELAY 0.0;
TASK_NOT_ABORTED := TRUE;
END INNER_TASK;
BEGIN
BIRTHS_AND_DEATHS;
-- DURING THIS SUSPENSION
-- MOST OF THE TASKS
-- ARE ABORTED (FIRST
-- TASK #1 -- T_OBJECT1 --
-- THEN #2 ).
TASK_NOT_ABORTED := TRUE;
END T_TYPE2;
BEGIN
DECLARE
OLD_COUNT : INTEGER := 0;
BEGIN
FOR I IN 1..5 LOOP
EXIT WHEN BIRTHS_AND_DEATHS'COUNT = 2;
DELAY 10.0 * Impdef.One_Second;
END LOOP;
OLD_COUNT := BIRTHS_AND_DEATHS'COUNT;
IF OLD_COUNT = 2 THEN
ACCEPT SYNC1; -- ALLOWING ABORT#1
DELAY IMPDEF.CLEAR_READY_QUEUE;
-- CHECK THAT #1 WAS ABORTED - 3 WAYS:
BEGIN
T_OBJECT1.E;
FAILED( "T_OBJECT1.E DID NOT RAISE" &
" TASKING_ERROR" );
EXCEPTION
WHEN TASKING_ERROR =>
NULL;
WHEN OTHERS =>
FAILED("OTHER EXCEPTION RAISED - 1");
END;
IF T_OBJECT1'CALLABLE THEN
FAILED( "T_OBJECT1'CALLABLE = TRUE" );
END IF;
IF OLD_COUNT - BIRTHS_AND_DEATHS'COUNT /= 1
THEN
FAILED( "TASK#1 NOT REMOVED FROM QUEUE" );
END IF;
OLD_COUNT := BIRTHS_AND_DEATHS'COUNT;
ACCEPT SYNC2; -- ALLOWING ABORT#2
DELAY IMPDEF.CLEAR_READY_QUEUE;
-- CHECK THAT #2 WAS ABORTED - 3 WAYS:
BEGIN
T_OBJECT2.E;
FAILED( "T_OBJECT2.E DID NOT RAISE" &
" TASKING_ERROR" );
EXCEPTION
WHEN TASKING_ERROR =>
NULL;
WHEN OTHERS =>
FAILED("OTHER EXCEPTION RAISED - 2");
END;
IF T_OBJECT2'CALLABLE THEN
FAILED( "T_OBJECT2'CALLABLE = TRUE" );
END IF;
IF OLD_COUNT - BIRTHS_AND_DEATHS'COUNT /= 1
THEN
FAILED( "TASK#2 NOT REMOVED FROM QUEUE" );
END IF;
IF BIRTHS_AND_DEATHS'COUNT /= 0 THEN
FAILED( "SOME TASKS STILL QUEUED" );
END IF;
ELSE
COMMENT( "LINEUP NOT COMPLETE (AFTER 50 S.)" );
TEST_VALID := FALSE;
END IF;
END;
WHILE BIRTHS_AND_DEATHS'COUNT > 0 LOOP
ACCEPT BIRTHS_AND_DEATHS;
END LOOP;
END REGISTER;
BEGIN
NULL;
END;
-------------------------------------------------------------------
IF TEST_VALID AND TASK_NOT_ABORTED THEN
FAILED( "SOME TASKS NOT ABORTED" );
END IF;
RESULT;
END C9A007A;
|
