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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/ada/acats/tests/c9/c97201a.ada
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+-- C97201A.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 A: THE TASK TO BE CALLED IS NOT YET ACTIVE AS OF THE
+-- MOMENT OF CALL (CONDITIONAL_ENTRY_CALL),
+-- AND THIS FACT CAN BE DETERMINED STATICALLY.
+
+
+-- RM 4/20/82
+
+
+WITH REPORT; USE REPORT;
+PROCEDURE C97201A IS
+
+ ELSE_BRANCH_TAKEN : INTEGER := 3 ;
+
+BEGIN
+
+
+ TEST ("C97201A", "CHECK THAT NO RENDEZVOUS REQUESTED BY" &
+ " A CONDITIONAL_ENTRY_CALL CAN OCCUR WHILE" &
+ " THE CALLED TASK IS NOT YET ACTIVE" );
+
+
+ -------------------------------------------------------------------
+
+
+ DECLARE
+
+
+ TASK T IS
+ ENTRY DO_IT_NOW_ORELSE ( AUTHORIZED : IN BOOLEAN ) ;
+ END T ;
+
+
+ TASK BODY T IS
+
+ PACKAGE SECOND_ATTEMPT IS END SECOND_ATTEMPT ;
+ PACKAGE BODY SECOND_ATTEMPT IS
+ BEGIN
+
+ SELECT
+ DO_IT_NOW_ORELSE (FALSE) ;--CALLING (OWN) ENTRY
+ ELSE -- (I.E. CALLER ADOPTS A NO-WAIT POLICY)
+ -- THEREFORE THIS BRANCH MUST BE CHOSEN
+ ELSE_BRANCH_TAKEN := 2 * ELSE_BRANCH_TAKEN ;
+ COMMENT( "ELSE_BRANCH TAKEN (#2)" );
+ END SELECT;
+
+ END SECOND_ATTEMPT ;
+
+ BEGIN
+
+ ACCEPT DO_IT_NOW_ORELSE ( AUTHORIZED : IN BOOLEAN ) DO
+
+ IF AUTHORIZED THEN
+ COMMENT( "AUTHORIZED ENTRY_CALL" );
+ ELSE
+ FAILED( "UNAUTHORIZED ENTRY_CALL" );
+ END IF;
+
+ END DO_IT_NOW_ORELSE ;
+
+
+ END T ;
+
+
+ PACKAGE FIRST_ATTEMPT IS END FIRST_ATTEMPT ;
+ PACKAGE BODY FIRST_ATTEMPT IS
+ BEGIN
+ SELECT
+ T.DO_IT_NOW_ORELSE (FALSE) ;
+ ELSE -- (I.E. CALLER ADOPTS A NO-WAIT POLICY)
+ -- THEREFORE THIS BRANCH MUST BE CHOSEN
+ ELSE_BRANCH_TAKEN := 1 + ELSE_BRANCH_TAKEN ;
+ COMMENT( "ELSE_BRANCH TAKEN (#1)" );
+ END SELECT;
+
+ END FIRST_ATTEMPT ;
+
+
+ BEGIN
+
+ T.DO_IT_NOW_ORELSE ( TRUE ); -- TO SATISFY THE SERVER'S
+ -- WAIT FOR SUCH A CALL
+
+ EXCEPTION
+
+ WHEN TASKING_ERROR =>
+ FAILED( "TASKING ERROR" );
+
+ END ;
+
+
+ -------------------------------------------------------------------
+
+
+ -- BY NOW, THE TASK IS TERMINATED (AND THE NONLOCALS UPDATED)
+
+
+ CASE ELSE_BRANCH_TAKEN IS
+
+ WHEN 3 =>
+ FAILED( "NO 'ELSE'; BOTH (?) RENDEZVOUS ATTEMPTED?" );
+
+ WHEN 4 =>
+ FAILED( "'ELSE' #1 ONLY; RENDEZVOUS (#2) ATTEMPTED?" );
+
+ WHEN 6 =>
+ FAILED( "'ELSE' #2 ONLY; RENDEZVOUS (#1) ATTEMPTED?" );
+
+ WHEN 7 =>
+ FAILED( "WRONG ORDER FOR 'ELSE': #2,#1 " );
+
+ WHEN 8 =>
+ NULL ;
+
+ WHEN OTHERS =>
+ FAILED( "WRONG CASE_VALUE" );
+
+ END CASE;
+
+
+ RESULT;
+
+
+END C97201A ;