1-- C97301A.ADA 2 3-- Grant of Unlimited Rights 4-- 5-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, 6-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 7-- unlimited rights in the software and documentation contained herein. 8-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making 9-- this public release, the Government intends to confer upon all 10-- recipients unlimited rights equal to those held by the Government. 11-- These rights include rights to use, duplicate, release or disclose the 12-- released technical data and computer software in whole or in part, in 13-- any manner and for any purpose whatsoever, and to have or permit others 14-- to do so. 15-- 16-- DISCLAIMER 17-- 18-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR 19-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 20-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE 21-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 22-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A 23-- PARTICULAR PURPOSE OF SAID MATERIAL. 24--* 25-- CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT LEAST THE SPECIFIED 26-- AMOUNT OF TIME IF A RENDEVOUS IS NOT POSSIBLE. 27 28-- CASE A: THE TASK TO BE CALLED HAS NOT YET BEEN ACTIVATED AS OF THE 29-- MOMENT OF CALL. 30 31-- RJW 3/31/86 32 33with Impdef; 34WITH REPORT; USE REPORT; 35WITH CALENDAR; USE CALENDAR; 36PROCEDURE C97301A IS 37 38 WAIT_TIME : CONSTANT DURATION := 10.0 * Impdef.One_Second; 39 OR_BRANCH_TAKEN : INTEGER := 3; 40 41BEGIN 42 43 TEST ("C97301A", "CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT " & 44 "LEAST THE SPECIFIED AMOUNT OF TIME WHEN THE " & 45 "CALLED TASK IS NOT ACTIVE" ); 46 47 ------------------------------------------------------------------ 48 49 DECLARE 50 51 TASK T IS 52 ENTRY DO_IT_NOW_OR_WAIT ( AUTHORIZED : IN BOOLEAN ); 53 END T; 54 55 TASK BODY T IS 56 57 PACKAGE SECOND_ATTEMPT IS END SECOND_ATTEMPT; 58 PACKAGE BODY SECOND_ATTEMPT IS 59 START_TIME : TIME; 60 BEGIN 61 START_TIME := CLOCK; 62 SELECT 63 DO_IT_NOW_OR_WAIT (FALSE); --CALLING OWN ENTRY. 64 OR 65 -- THEREFORE THIS BRANCH 66 -- MUST BE CHOSEN. 67 DELAY WAIT_TIME; 68 IF CLOCK >= (WAIT_TIME + START_TIME) THEN 69 NULL; 70 ELSE 71 FAILED ( "INSUFFICIENT DELAY (#2)" ); 72 END IF; 73 OR_BRANCH_TAKEN := 2 * OR_BRANCH_TAKEN; 74 COMMENT( "OR_BRANCH TAKEN (#2)" ); 75 END SELECT; 76 END SECOND_ATTEMPT; 77 78 BEGIN 79 80 ACCEPT DO_IT_NOW_OR_WAIT ( AUTHORIZED : IN BOOLEAN ) DO 81 82 IF AUTHORIZED THEN 83 COMMENT( "AUTHORIZED ENTRY_CALL" ); 84 ELSE 85 FAILED( "UNAUTHORIZED ENTRY_CALL" ); 86 END IF; 87 88 END DO_IT_NOW_OR_WAIT; 89 90 91 END T; 92 93 94 PACKAGE FIRST_ATTEMPT IS END FIRST_ATTEMPT; 95 PACKAGE BODY FIRST_ATTEMPT IS 96 START_TIME : TIME; 97 BEGIN 98 START_TIME := CLOCK; 99 SELECT 100 T.DO_IT_NOW_OR_WAIT (FALSE); 101 OR 102 -- THIS BRANCH MUST BE CHOSEN. 103 DELAY WAIT_TIME; 104 IF CLOCK >= (WAIT_TIME + START_TIME) THEN 105 NULL; 106 ELSE 107 FAILED ( "INSUFFICIENT DELAY (#1)" ); 108 END IF; 109 OR_BRANCH_TAKEN := 1 + OR_BRANCH_TAKEN; 110 COMMENT( "OR_BRANCH TAKEN (#1)" ); 111 END SELECT; 112 113 END FIRST_ATTEMPT; 114 115 BEGIN 116 117 T.DO_IT_NOW_OR_WAIT ( TRUE ); -- TO SATISFY THE SERVER'S 118 -- WAIT FOR SUCH A CALL. 119 120 EXCEPTION 121 122 WHEN TASKING_ERROR => 123 FAILED( "TASKING ERROR" ); 124 125 END ; 126 127 128 ------------------------------------------------------------------ 129 130 131 -- BY NOW, THE TASK IS TERMINATED (AND THE NONLOCALS UPDATED). 132 133 134 CASE OR_BRANCH_TAKEN IS 135 136 WHEN 3 => 137 FAILED( "NO 'OR'; BOTH (?) RENDEZVOUS ATTEMPTED?" ); 138 139 WHEN 4 => 140 FAILED( "'OR' #1 ONLY; RENDEZVOUS (#2) ATTEMPTED?" ); 141 142 WHEN 6 => 143 FAILED( "'OR' #2 ONLY; RENDEZVOUS (#1) ATTEMPTED?" ); 144 145 WHEN 7 => 146 FAILED( "WRONG ORDER FOR 'OR': #2,#1" ); 147 148 WHEN 8 => 149 NULL; 150 151 WHEN OTHERS => 152 FAILED( "WRONG CASE_VALUE" ); 153 154 END CASE; 155 156 RESULT; 157 158END C97301A; 159