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-- C980001.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.
--*
--
-- OBJECTIVE:
-- Check that when a construct is aborted the execution of an Initialize
-- procedure as the last step of the default initialization of a
-- controlled object is abort-deferred.
--
-- Check that when a construct is aborted the execution of a Finalize
-- procedure as part of the finalization of a controlled object is
-- abort-deferred.
--
-- Check that an assignment operation to an object with a controlled
-- part is an abort-deferred operation.
--
-- TEST DESCRIPTION:
-- The controlled operations which are being tested call a subprogram
-- which guarantees that the enclosing operation becomes aborted.
--
-- Each object is created with a unique value to prevent optimizations
-- due to the values being the same.
--
-- Two protected objects are utilized to warrant that the operations
-- are delayed in their execution until such time that the abort is
-- processed. The object Hold_Up is used to hold the targeted
-- operation in execution, the object Progress is used to communicate
-- to the driver software that progress is indeed being made.
--
--
-- CHANGE HISTORY:
-- 01 MAY 95 SAIC Initial version
-- 01 MAY 96 SAIC Revised for 2.1
-- 11 DEC 96 SAIC Final revision for 2.1
-- 02 DEC 97 EDS Remove 2 calls to C980001_0.Hold_Up.Lock
--!
---------------------------------------------------------------- C980001_0
with Impdef;
with Ada.Finalization;
package C980001_0 is
A_Little_While : constant Duration := Impdef.Switch_To_New_Task * 2.0;
Enough_Time_For_The_Controlled_Operation_To_Happen : constant Duration
:= Impdef.Switch_To_New_Task * 4.0;
function TC_Unique return Integer;
type Sticks_In_Initialize is new Ada.Finalization.Controlled with record
Item: Integer := TC_Unique;
end record;
procedure Initialize( AV: in out Sticks_In_Initialize );
type Sticks_In_Adjust is new Ada.Finalization.Controlled with record
Item: Integer := TC_Unique;
end record;
procedure Adjust ( AV: in out Sticks_In_Adjust );
type Sticks_In_Finalize is new Ada.Finalization.Controlled with record
Item: Integer := TC_Unique;
end record;
procedure Finalize ( AV: in out Sticks_In_Finalize );
Initialize_Called : Boolean := False;
Adjust_Called : Boolean := False;
Finalize_Called : Boolean := False;
protected type Sticker is
entry Lock;
procedure Unlock;
function Is_Locked return Boolean;
private
Locked : Boolean := False;
end Sticker;
Hold_Up : Sticker;
Progress : Sticker;
procedure Fail_And_Clear( Message : String );
end C980001_0;
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
with Report;
with TCTouch;
package body C980001_0 is
TC_Master_Value : Integer := 0;
function TC_Unique return Integer is -- make all values unique.
begin
TC_Master_Value := TC_Master_Value +1;
return TC_Master_Value;
end TC_Unique;
protected body Sticker is
entry Lock when not Locked is
begin
Locked := True;
end Lock;
procedure Unlock is
begin
Locked := False;
end Unlock;
function Is_Locked return Boolean is
begin
return Locked;
end Is_Locked;
end Sticker;
procedure Initialize( AV: in out Sticks_In_Initialize ) is
begin
TCTouch.Touch('I'); -------------------------------------------------- I
Hold_Up.Unlock; -- cause the select to abort
Initialize_Called := True;
AV.Item := TC_Unique;
TCTouch.Touch('i'); -------------------------------------------------- i
Progress.Unlock; -- allows Wait_Your_Turn to continue
end Initialize;
procedure Adjust ( AV: in out Sticks_In_Adjust ) is
begin
TCTouch.Touch('A'); -------------------------------------------------- A
Hold_Up.Unlock; -- cause the select to abort
Adjust_Called := True;
AV.Item := TC_Unique;
TCTouch.Touch('a'); -------------------------------------------------- a
Progress.Unlock;
end Adjust;
procedure Finalize ( AV: in out Sticks_In_Finalize ) is
begin
TCTouch.Touch('F'); -------------------------------------------------- F
Hold_Up.Unlock; -- cause the select to abort
Finalize_Called := True;
AV.Item := TC_Unique;
TCTouch.Touch('f'); -------------------------------------------------- f
Progress.Unlock;
end Finalize;
procedure Fail_And_Clear( Message : String ) is
begin
Report.Failed(Message);
Hold_Up.Unlock;
Progress.Unlock;
end Fail_And_Clear;
end C980001_0;
---------------------------------------------------------------------------
with Report;
with TCTouch;
with Impdef;
with C980001_0;
procedure C980001 is
procedure Check_Initialize_Conditions is
begin
if not C980001_0.Initialize_Called then
C980001_0.Fail_And_Clear("Initialize did not correctly complete");
end if;
TCTouch.Validate("Ii", "Initialization Sequence");
end Check_Initialize_Conditions;
procedure Check_Adjust_Conditions is
begin
if not C980001_0.Adjust_Called then
C980001_0.Fail_And_Clear("Adjust did not correctly complete");
end if;
TCTouch.Validate("Aa", "Adjust Sequence");
end Check_Adjust_Conditions;
procedure Check_Finalize_Conditions is
begin
if not C980001_0.Finalize_Called then
C980001_0.Fail_And_Clear("Finalize did not correctly complete");
end if;
TCTouch.Validate("FfFfFf", "Finalization Sequence",
Order_Meaningful => False);
end Check_Finalize_Conditions;
procedure Wait_Your_Turn is
Overrun : Natural := 0;
begin
while C980001_0.Progress.Is_Locked loop -- and waits
delay C980001_0.A_Little_While;
Overrun := Overrun +1;
if Overrun > 10 then
C980001_0.Fail_And_Clear("Overrun expired lock");
end if;
end loop;
end Wait_Your_Turn;
begin -- Main test procedure.
Report.Test ("C980001", "Check the interaction between asynchronous " &
"transfer of control and controlled types" );
C980001_0.Progress.Lock;
C980001_0.Hold_Up.Lock;
select
C980001_0.Hold_Up.Lock; -- Init will unlock
Wait_Your_Turn; -- abortable part is stuck in Initialize
Check_Initialize_Conditions;
then abort
declare
Object : C980001_0.Sticks_In_Initialize;
begin
delay Impdef.Minimum_Task_Switch;
if Report.Ident_Int( Object.Item ) /= Object.Item then
Report.Failed("Optimization foil caused failure");
end if;
C980001_0.Fail_And_Clear(
"Initialize test executed beyond expected region");
end;
end select;
C980001_0.Progress.Lock;
select
C980001_0.Hold_Up.Lock; -- Adjust will unlock
Wait_Your_Turn; -- abortable part is stuck in Adjust
Check_Adjust_Conditions;
then abort
declare
Object1 : C980001_0.Sticks_In_Adjust;
Object2 : C980001_0.Sticks_In_Adjust;
begin
Object1 := Object2;
delay Impdef.Minimum_Task_Switch;
if Report.Ident_Int( Object2.Item )
/= Report.Ident_Int( Object1.Item ) then
Report.Failed("Optimization foil 1 caused failure");
end if;
C980001_0.Fail_And_Clear("Adjust test executed beyond expected region");
end;
end select;
C980001_0.Progress.Lock;
select
C980001_0.Hold_Up.Lock; -- Finalize will unlock
Wait_Your_Turn; -- abortable part is stuck in Finalize
Check_Finalize_Conditions;
then abort
declare
Object1 : C980001_0.Sticks_In_Finalize;
Object2 : C980001_0.Sticks_In_Finalize;
begin
Object1 := Object2; -- cause a finalize call
delay Impdef.Minimum_Task_Switch;
if Report.Ident_Int( Object2.Item )
/= Report.Ident_Int( Object1.Item ) then
Report.Failed("Optimization foil 2 caused failure");
end if;
C980001_0.Fail_And_Clear(
"Finalize test executed beyond expected region");
end;
end select;
Report.Result;
exception
when others => C980001_0.Fail_And_Clear("Exception in main");
Report.Result;
end C980001;
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