Subversion Repositories openrisc

-- C97303B.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 TIMED_ENTRY_CALL CAN APPEAR IN PLACES WHERE A

--     SELECTIVE_WAIT  CANNOT.

-- PART 2: PROCEDURE BODY EMBEDDED IN TASK BODY.

-- RM 4/12/1982

with Impdef;

WITH REPORT;

USE REPORT;

PROCEDURE  C97303B  IS

BEGIN

     TEST ( "C97303B" , "CHECK THAT A  TIMED_ENTRY_CALL  CAN" &

                        " APPEAR WHERE A  SELECTIVE_WAIT  CANNOT" );

     -------------------------------------------------------------------

     DECLARE

          TASK  TT  IS

               ENTRY  A ( AUTHORIZED : IN BOOLEAN );

          END  TT ;

          TASK BODY  TT  IS

               PROCEDURE  WITHIN_TASK_BODY ;

               PROCEDURE  WITHIN_TASK_BODY  IS

               BEGIN

                    SELECT  -- NOT A SELECTIVE_WAIT

                         A ( FALSE ) ;  -- CALLING (OWN) ENTRY

                    OR

                         DELAY 1.0 * Impdef.One_Second;

                         COMMENT( "ALTERNATIVE BRANCH TAKEN" );

                    END SELECT;

               END  WITHIN_TASK_BODY ;

          BEGIN

               -- CALL THE INNER PROC. TO FORCE EXEC. OF TIMED_E_CALL

               WITHIN_TASK_BODY ;

               ACCEPT  A ( AUTHORIZED : IN BOOLEAN )  DO

                    IF  AUTHORIZED  THEN

                         COMMENT(  "AUTHORIZED ENTRY_CALL" );

                    ELSE

                         FAILED( "UNAUTHORIZED ENTRY_CALL" );

                    END IF;

               END  A ;

          END  TT ;

          PROCEDURE  OUTSIDE_TASK_BODY  IS

          BEGIN

               SELECT  -- NOT A SELECTIVE_WAIT

                    TT.A ( FALSE ) ;  -- UNBORN

               OR

                    DELAY 1.0 * Impdef.One_Second;

                    COMMENT( "(OUT:) ALTERNATIVE BRANCH TAKEN" );

               END SELECT;

          END  OUTSIDE_TASK_BODY ;

          PACKAGE       CREATE_OPPORTUNITY_TO_CALL           IS END;

          PACKAGE BODY  CREATE_OPPORTUNITY_TO_CALL  IS

          BEGIN

               -- CALL THE OTHER PROC. TO FORCE EXEC. OF TIMED_E_CALL

               OUTSIDE_TASK_BODY ;

          END  CREATE_OPPORTUNITY_TO_CALL ;

     BEGIN

          TT.A ( TRUE );

     EXCEPTION

          WHEN  TASKING_ERROR  =>

               FAILED( "TASKING ERROR" );

     END  ;

     -------------------------------------------------------------------

     RESULT ;

END  C97303B ;