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1 149 jeremybenn
-- C97301A.ADA
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--                             Grant of Unlimited Rights
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--
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--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
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--     unlimited rights in the software and documentation contained herein.
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--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
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--     this public release, the Government intends to confer upon all 
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--     recipients unlimited rights  equal to those held by the Government.  
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--     These rights include rights to use, duplicate, release or disclose the 
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--     released technical data and computer software in whole or in part, in 
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--     any manner and for any purpose whatsoever, and to have or permit others 
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--     to do so.
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--
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--                                    DISCLAIMER
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--
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--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
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--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
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--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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--     PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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-- CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT LEAST THE SPECIFIED
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-- AMOUNT OF TIME IF A RENDEVOUS IS NOT POSSIBLE.
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-- CASE  A:  THE TASK TO BE CALLED HAS NOT YET BEEN ACTIVATED AS OF THE
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--           MOMENT OF CALL.
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-- RJW 3/31/86
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with Impdef;
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WITH REPORT; USE REPORT;
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WITH CALENDAR; USE CALENDAR;
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PROCEDURE C97301A IS
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     WAIT_TIME : CONSTANT DURATION := 10.0 * Impdef.One_Second;
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     OR_BRANCH_TAKEN : INTEGER := 3;
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BEGIN
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     TEST ("C97301A", "CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT " &
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                      "LEAST THE SPECIFIED AMOUNT OF TIME WHEN THE " &
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                      "CALLED TASK IS NOT ACTIVE" );
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     ------------------------------------------------------------------
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     DECLARE
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          TASK  T  IS
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               ENTRY  DO_IT_NOW_OR_WAIT ( AUTHORIZED : IN BOOLEAN );
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          END  T;
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          TASK BODY  T  IS
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               PACKAGE       SECOND_ATTEMPT  IS    END  SECOND_ATTEMPT;
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               PACKAGE BODY  SECOND_ATTEMPT  IS
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                    START_TIME : TIME;
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               BEGIN
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                    START_TIME := CLOCK;
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                    SELECT
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                         DO_IT_NOW_OR_WAIT (FALSE); --CALLING OWN ENTRY.
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                    OR
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                                      -- THEREFORE THIS BRANCH
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                                      --    MUST BE CHOSEN.
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                         DELAY WAIT_TIME;
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                         IF CLOCK >= (WAIT_TIME + START_TIME) THEN
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                              NULL;
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                         ELSE
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                              FAILED ( "INSUFFICIENT DELAY (#2)" );
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                         END IF;
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                         OR_BRANCH_TAKEN := 2 * OR_BRANCH_TAKEN;
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                         COMMENT( "OR_BRANCH  TAKEN  (#2)" );
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                    END SELECT;
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               END  SECOND_ATTEMPT;
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          BEGIN
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               ACCEPT DO_IT_NOW_OR_WAIT ( AUTHORIZED : IN BOOLEAN )  DO
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                    IF  AUTHORIZED  THEN
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                         COMMENT( "AUTHORIZED ENTRY_CALL" );
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                    ELSE
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                         FAILED( "UNAUTHORIZED ENTRY_CALL" );
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                    END IF;
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               END DO_IT_NOW_OR_WAIT;
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          END  T;
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          PACKAGE       FIRST_ATTEMPT  IS      END  FIRST_ATTEMPT;
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          PACKAGE BODY  FIRST_ATTEMPT  IS
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               START_TIME : TIME;
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          BEGIN
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               START_TIME := CLOCK;
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               SELECT
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                    T.DO_IT_NOW_OR_WAIT (FALSE);
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               OR
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                                      -- THIS BRANCH MUST BE CHOSEN.
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                    DELAY WAIT_TIME;
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                    IF CLOCK >= (WAIT_TIME + START_TIME) THEN
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                         NULL;
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                    ELSE
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                         FAILED ( "INSUFFICIENT DELAY (#1)" );
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                    END IF;
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                    OR_BRANCH_TAKEN := 1 + OR_BRANCH_TAKEN;
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                    COMMENT( "OR_BRANCH  TAKEN  (#1)" );
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               END SELECT;
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          END  FIRST_ATTEMPT;
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     BEGIN
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          T.DO_IT_NOW_OR_WAIT ( TRUE );   -- TO SATISFY THE SERVER'S
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                                          --     WAIT FOR SUCH A CALL.
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     EXCEPTION
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          WHEN  TASKING_ERROR  =>
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               FAILED( "TASKING ERROR" );
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     END ;
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     ------------------------------------------------------------------
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     -- BY NOW, THE TASK IS TERMINATED  (AND THE NONLOCALS UPDATED).
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     CASE  OR_BRANCH_TAKEN  IS
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          WHEN  3  =>
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               FAILED( "NO 'OR'; BOTH (?) RENDEZVOUS ATTEMPTED?" );
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          WHEN  4  =>
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               FAILED( "'OR' #1 ONLY; RENDEZVOUS (#2) ATTEMPTED?" );
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          WHEN  6  =>
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               FAILED( "'OR' #2 ONLY; RENDEZVOUS (#1) ATTEMPTED?" );
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          WHEN  7  =>
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               FAILED( "WRONG ORDER FOR 'OR':  #2,#1" );
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          WHEN  8  =>
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               NULL;
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          WHEN  OTHERS  =>
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               FAILED( "WRONG CASE_VALUE" );
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     END CASE;
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     RESULT;
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END  C97301A;

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