| -- C97301B.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. |
| --* |
| -- OBJECTIVE: |
| -- CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT LEAST THE SPECIFIED |
| -- AMOUNT OF TIME IF A RENDEZVOUS IS NOT POSSIBLE. |
| |
| -- CASE B: THE QUEUE FOR THE CALLED ENTRY ALREADY CONTAINS |
| -- ANOTHER TASK WHOSE RENDEZVOUS CANNOT BE COMPLETED WITHIN |
| -- THE SPECIFIED DELAY. |
| |
| --HISTORY: |
| -- RJW 03/31/86 CREATED ORIGINAL TEST. |
| -- DHH 10/20/87 SHORTENED LINES CONTAINING MORE THAN 72 CHARACTERS. |
| |
| with Impdef; |
| WITH REPORT; USE REPORT; |
| WITH CALENDAR; USE CALENDAR; |
| PROCEDURE C97301B IS |
| |
| OR_BRANCH_TAKEN : BOOLEAN := FALSE; |
| |
| BEGIN |
| |
| TEST ("C97301B", "CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT " & |
| "LEAST THE SPECIFIED AMOUNT OF TIME WHEN THE " & |
| "QUEUE FOR THE CALLED ENTRY ALREADY CONTAINS " & |
| "ANOTHER TASK WHOSE RENDEZVOUS CANNOT BE " & |
| "COMPLETED WITHIN THE SPECIFIED DELAY" ); |
| |
| |
| DECLARE |
| WAIT_TIME : DURATION := 3.0 * Impdef.One_Second; |
| |
| TASK T1; |
| |
| TASK T2 IS |
| ENTRY AWAKEN_T2; |
| END T2; |
| |
| TASK T3 IS |
| ENTRY AWAKEN_T3; |
| ENTRY RELEASE_T; |
| END T3; |
| |
| TASK T IS |
| ENTRY DO_IT_NOW_OR_WAIT (X : INTEGER); |
| END T; |
| |
| TASK BODY T IS |
| BEGIN |
| ACCEPT DO_IT_NOW_OR_WAIT (X : INTEGER) DO |
| IF X = 1 THEN |
| T2.AWAKEN_T2; |
| WHILE DO_IT_NOW_OR_WAIT'COUNT = 0 LOOP |
| DELAY 1.0 * Impdef.One_Second; |
| END LOOP; |
| T3.AWAKEN_T3; |
| T3.RELEASE_T; |
| ELSE |
| FAILED ("WRONG TASK IN RENDEZVOUS - 1"); |
| END IF; |
| END DO_IT_NOW_OR_WAIT; |
| ACCEPT DO_IT_NOW_OR_WAIT (X : INTEGER) DO |
| IF X /= 2 THEN |
| FAILED ("WRONG TASK IN RENDEZVOUS - 2"); |
| END IF; |
| END DO_IT_NOW_OR_WAIT; |
| END T; |
| |
| TASK BODY T1 IS |
| BEGIN |
| T.DO_IT_NOW_OR_WAIT (1); |
| END T1; |
| |
| TASK BODY T2 IS |
| BEGIN |
| ACCEPT AWAKEN_T2; |
| T.DO_IT_NOW_OR_WAIT (2); |
| END T2; |
| |
| TASK BODY T3 IS |
| START_TIME : TIME; |
| STOP_TIME : TIME; |
| BEGIN |
| BEGIN |
| ACCEPT AWAKEN_T3; |
| START_TIME := CLOCK; |
| SELECT |
| T.DO_IT_NOW_OR_WAIT (3); |
| OR |
| -- THIS BRANCH MUST BE CHOSEN. |
| DELAY WAIT_TIME; |
| STOP_TIME := CLOCK; |
| IF STOP_TIME >= (WAIT_TIME + START_TIME) THEN |
| NULL; |
| ELSE |
| FAILED ( "INSUFFICIENT DELAY" ); |
| END IF; |
| OR_BRANCH_TAKEN := TRUE; |
| COMMENT( "OR_BRANCH TAKEN" ); |
| ACCEPT RELEASE_T; |
| END SELECT; |
| EXCEPTION |
| WHEN TASKING_ERROR => |
| FAILED ( "TASKING ERROR" ); |
| END; |
| -- END OF BLOCK CONTAINING TIMED |
| -- ENTRY CALL. |
| |
| -- BY NOW, THE TASK T IS EFFECTIVELY |
| -- TERMINATED (AND THE NONLOCALS UPDATED). |
| |
| IF OR_BRANCH_TAKEN THEN |
| NULL; |
| ELSE |
| FAILED( "RENDEZVOUS ATTEMPTED" ); |
| END IF; |
| END T3; |
| BEGIN |
| NULL; |
| END; |
| |
| RESULT; |
| |
| END C97301B; |