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-- C97201E.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 RENDEZVOUS REQUESTED BY A CONDITIONAL_ENTRY_CALL
-- IS PERFORMED ONLY IF IMMEDIATELY POSSIBLE.
-- CASE E: THE BODY OF THE TASK CONTAINING THE CALLED ENTRY
-- DOES NOT CONTAIN AN ACCEPT_STATEMENT FOR THAT ENTRY -
-- AND THIS FACT CAN NOT BE DETERMINED STATICALLY.
-- (THE ENTRY BELONGS TO AN ENTRY FAMILY; SOME FAMILY MEMBERS
-- ARE "ACCEPTABLE", BUT NOT THE CALLED ONE.)
-- RM 4/13/82
WITH REPORT; USE REPORT;
PROCEDURE C97201E IS
ELSE_BRANCH_TAKEN : BOOLEAN := FALSE ;
BEGIN
TEST ("C97201E", "CHECK THAT NO RENDEZVOUS REQUESTED BY" &
" A CONDITIONAL_ENTRY_CALL CAN EVER OCCUR" &
" IN THE ABSENCE OF A CORRESPONDING " &
" ACCEPT_STATEMENT " );
DECLARE
SUBTYPE SHORT IS INTEGER RANGE 10..20 ;
KEEP_ALIVE : INTEGER := 15 ;
TASK T IS
ENTRY DO_IT_NOW_ORELSE ( SHORT ) ;
END T ;
TASK BODY T IS
BEGIN
-- NO ACCEPT_STATEMENT FOR THE ENTRY_CALL BEING TESTED
ACCEPT DO_IT_NOW_ORELSE ( IDENT_INT(15) );
-- THIS ALSO PREVENTS THIS SERVER
-- TASK FROM TERMINATING IF
-- UPON ACTIVATION
-- IT GETS TO RUN
-- AHEAD OF THE CALLER (WHICH
-- WOULD LEAD TO A SUBSEQUENT
-- TASKING_ERROR AT THE TIME OF
-- THE NO-WAIT CALL).
END ;
BEGIN
SELECT
T.DO_IT_NOW_ORELSE (10) ; -- ACCEPT_STATEMENT HAS 15
ELSE -- (I.E. CALLER ADOPTS A NO-WAIT POLICY)
-- THEREFORE THIS BRANCH MUST BE CHOSEN
ELSE_BRANCH_TAKEN := TRUE ;
COMMENT( "ELSE_BRANCH TAKEN" );
END SELECT;
T.DO_IT_NOW_ORELSE(KEEP_ALIVE) ;-- THIS ALSO UPDATES NONLOCALS
END; -- END OF BLOCK CONTAINING THE ENTRY CALL
-- BY NOW, THE TASK IS TERMINATED
IF ELSE_BRANCH_TAKEN THEN
NULL ;
ELSE
FAILED( "RENDEZVOUS ATTEMPTED?" );
END IF;
RESULT;
END C97201E ;
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