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-- C930001.A
--
-- 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.
--*
--
-- TEST OBJECTIVE:
-- Check when a dependent task and its master both
-- terminate as a result of a terminate alternative that
-- finalization is performed and that the finalization is
-- performed in the proper order.
--
-- TEST DESCRIPTION:
-- A controlled type with finalization is used to determine
-- the order in which finalization occurs. The finalization
-- procedure records the identity of the object being
-- finalized.
-- Two tasks, one nested inside the other, both contain
-- objects of the above finalization type. These tasks
-- cooperatively terminate so the termination and finalization
-- order can be noted.
--
--
-- CHANGE HISTORY:
-- 08 Jan 96 SAIC ACVC 2.1
-- 09 May 96 SAIC Addressed Reviewer comments.
--
--!
with Ada.Finalization;
package C930001_0 is
Verbose : constant Boolean := False;
type Ids is range 0..10;
Finalization_Order : array (Ids) of Ids := (Ids => 0);
Finalization_Cnt : Ids := 0;
protected Note is
-- serializes concurrent access to Finalization_* above
procedure Done (Id : Ids);
end Note;
-- Objects of the following type are used to note the order in
-- which finalization occurs.
type Has_Finalization is new Ada.Finalization.Limited_Controlled with
record
Id : Ids;
end record;
procedure Finalize (Object : in out Has_Finalization);
end C930001_0;
with Report;
package body C930001_0 is
protected body Note is
procedure Done (Id : Ids) is
begin
Finalization_Cnt := Finalization_Cnt + 1;
Finalization_Order (Finalization_Cnt) := Id;
end Done;
end Note;
procedure Finalize (Object : in out Has_Finalization) is
begin
Note.Done (Object.Id);
if Verbose then
Report.Comment ("in Finalize for" & Ids'Image (Object.Id));
end if;
end Finalize;
end C930001_0;
with Report;
with ImpDef;
with C930001_0; use C930001_0;
procedure C930001 is
begin
Report.Test ("C930001", "Check that dependent tasks are terminated" &
" before the remaining finalization");
declare
task Level_1;
task body Level_1 is
V1a : C930001_0.Has_Finalization; -------> 4
task Level_2 is
entry Not_Taken;
end Level_2;
task body Level_2 is
V2 : C930001_0.Has_Finalization; -------> 2
begin
V2.Id := 2;
C930001_0.Note.Done (1); -------> 1
select
accept Not_Taken;
or
terminate;
-- cooperative termination at this point of
-- both tasks
end select;
end Level_2;
-- 7.6.1(11) requires that V1b be finalized before V1a
V1b : C930001_0.Has_Finalization; -------> 3
begin
V1a.Id := 4;
V1b.Id := 3;
end Level_1;
begin -- declare
while not Level_1'Terminated loop
delay ImpDef.Switch_To_New_Task;
end loop;
C930001_0.Note.Done (5); -------> 5
-- now check the order
for I in Ids range 1..5 loop
if Verbose then
Report.Comment (Ids'Image (I) &
Ids'Image (Finalization_Order (I)));
end if;
if Finalization_Order (I) /= I then
Report.Failed ("Finalization occurred out of order" &
" expected:" &
Ids'Image (I) &
" actual:" &
Ids'Image (Finalization_Order (I)));
end if;
end loop;
end;
Report.Result;
end C930001;
|
