| -- C97302A.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 WHENEVER AN INDEX IS PRESENT IN A TIMED_ENTRY_CALL, IT |
| -- IS EVALUATED BEFORE ANY PARAMETER ASSOCIATIONS ARE EVALUATED, AND |
| -- PARAMETER ASSOCIATIONS ARE EVALUATED BEFORE THE DELAY EXPRESSION. |
| -- THEN A RENDEZVOUS IS ATTEMPTED. |
| |
| -- RJW 3/31/86 |
| |
| with Impdef; |
| WITH REPORT; USE REPORT; |
| WITH CALENDAR; USE CALENDAR; |
| PROCEDURE C97302A IS |
| |
| INDEX_COMPUTED : BOOLEAN := FALSE; |
| PARAM_COMPUTED : BOOLEAN := FALSE; |
| DELAY_COMPUTED : BOOLEAN := FALSE; |
| BEGIN |
| |
| TEST ("C97302A", "CHECK THAT WHENEVER AN INDEX IS PRESENT IN " & |
| "A TIMED_ENTRY_CALL, IT IS EVALUATED BEFORE " & |
| "ANY PARAMETER ASSOCIATIONS ARE EVALUATED, " & |
| "AND PARAMETER ASSOCIATIONS ARE EVALUATED " & |
| "BEFORE THE DELAY EXPRESSION" ); |
| DECLARE |
| |
| WAIT_TIME : DURATION := 3.0 * Impdef.One_Second; |
| |
| TYPE SHORT IS RANGE 10 .. 20; |
| |
| TASK T IS |
| ENTRY DO_IT_NOW_OR_WAIT |
| ( SHORT ) |
| ( DID_YOU_DO_IT : IN BOOLEAN ); |
| ENTRY KEEP_ALIVE; |
| END T; |
| |
| TASK BODY T IS |
| BEGIN |
| ACCEPT KEEP_ALIVE; |
| END T; |
| |
| FUNCTION F1 (X : SHORT) RETURN SHORT IS |
| BEGIN |
| INDEX_COMPUTED := TRUE; |
| RETURN (15); |
| END F1; |
| |
| FUNCTION F2 RETURN BOOLEAN IS |
| BEGIN |
| IF INDEX_COMPUTED THEN |
| NULL; |
| ELSE |
| FAILED ( "INDEX NOT EVALUATED FIRST" ); |
| END IF; |
| PARAM_COMPUTED := TRUE; |
| RETURN (FALSE); |
| END F2; |
| |
| FUNCTION F3 RETURN DURATION IS |
| BEGIN |
| IF PARAM_COMPUTED THEN |
| NULL; |
| ELSE |
| FAILED ( "PARAMETERS NOT EVALUATED BEFORE DELAY " & |
| "EXPRESSION" ); |
| END IF; |
| DELAY_COMPUTED := TRUE; |
| RETURN (WAIT_TIME); |
| END; |
| BEGIN |
| |
| SELECT |
| T.DO_IT_NOW_OR_WAIT |
| ( F1 (15) ) |
| ( NOT F2 ); |
| FAILED ("RENDEZVOUS OCCURRED"); |
| OR |
| DELAY F3; |
| END SELECT; |
| |
| T.KEEP_ALIVE; |
| |
| END; -- END OF BLOCK CONTAINING THE ENTRY CALLS. |
| |
| IF DELAY_COMPUTED THEN |
| NULL; |
| ELSE |
| FAILED( "DELAY EXPRESSION NOT EVALUATED" ); |
| END IF; |
| |
| RESULT; |
| |
| END C97302A; |