-- C974002.A
|
-- C974002.A
|
--
|
--
|
-- Grant of Unlimited Rights
|
-- Grant of Unlimited Rights
|
--
|
--
|
-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
|
-- 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
|
-- 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 in the software and documentation contained herein.
|
-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
|
-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
|
-- this public release, the Government intends to confer upon all
|
-- this public release, the Government intends to confer upon all
|
-- recipients unlimited rights equal to those held by the Government.
|
-- recipients unlimited rights equal to those held by the Government.
|
-- These rights include rights to use, duplicate, release or disclose the
|
-- These rights include rights to use, duplicate, release or disclose the
|
-- released technical data and computer software in whole or in part, in
|
-- 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
|
-- any manner and for any purpose whatsoever, and to have or permit others
|
-- to do so.
|
-- to do so.
|
--
|
--
|
-- DISCLAIMER
|
-- DISCLAIMER
|
--
|
--
|
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
|
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
|
-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
|
-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
|
-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
|
-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
|
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
|
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
|
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
|
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
|
-- PARTICULAR PURPOSE OF SAID MATERIAL.
|
-- PARTICULAR PURPOSE OF SAID MATERIAL.
|
--*
|
--*
|
--
|
--
|
-- OBJECTIVE:
|
-- OBJECTIVE:
|
-- Check that the sequence of statements of the triggering alternative
|
-- Check that the sequence of statements of the triggering alternative
|
-- of an asynchronous select statement is executed if the triggering
|
-- of an asynchronous select statement is executed if the triggering
|
-- statement is a delay_until statement, and the specified time has
|
-- statement is a delay_until statement, and the specified time has
|
-- already passed. Check that the abortable part is not executed after
|
-- already passed. Check that the abortable part is not executed after
|
-- the sequence of statements of the triggering alternative is left.
|
-- the sequence of statements of the triggering alternative is left.
|
--
|
--
|
-- Check that the sequence of statements of the triggering alternative
|
-- Check that the sequence of statements of the triggering alternative
|
-- of an asynchronous select statement is not executed if the abortable
|
-- of an asynchronous select statement is not executed if the abortable
|
-- part completes before the triggering statement, and the triggering
|
-- part completes before the triggering statement, and the triggering
|
-- statement is a delay_until statement.
|
-- statement is a delay_until statement.
|
--
|
--
|
-- TEST DESCRIPTION:
|
-- TEST DESCRIPTION:
|
-- Declare a task with an accept statement containing an asynchronous
|
-- Declare a task with an accept statement containing an asynchronous
|
-- select with a delay_until triggering statement. Parameterize
|
-- select with a delay_until triggering statement. Parameterize
|
-- the accept statement with the time to be used in the delay. Simulate
|
-- the accept statement with the time to be used in the delay. Simulate
|
-- a quick calculation by declaring a procedure which sets a Boolean
|
-- a quick calculation by declaring a procedure which sets a Boolean
|
-- flag. Call this procedure in the abortable part.
|
-- flag. Call this procedure in the abortable part.
|
--
|
--
|
-- Make two calls to the task entry: (1) with a time that has already
|
-- Make two calls to the task entry: (1) with a time that has already
|
-- expired, and (2) with a time that will not expire before the quick
|
-- expired, and (2) with a time that will not expire before the quick
|
-- calculation completes.
|
-- calculation completes.
|
--
|
--
|
-- For (1), the sequence of statements following the triggering statement
|
-- For (1), the sequence of statements following the triggering statement
|
-- is executed, and the abortable part never starts.
|
-- is executed, and the abortable part never starts.
|
--
|
--
|
-- For (2), the abortable part completes before the triggering statement,
|
-- For (2), the abortable part completes before the triggering statement,
|
-- the delay is canceled, and the sequence of statements following the
|
-- the delay is canceled, and the sequence of statements following the
|
-- triggering statement never starts.
|
-- triggering statement never starts.
|
--
|
--
|
--
|
--
|
-- CHANGE HISTORY:
|
-- CHANGE HISTORY:
|
-- 06 Dec 94 SAIC ACVC 2.0
|
-- 06 Dec 94 SAIC ACVC 2.0
|
-- 26 Nov 95 SAIC Bug fix for ACVC 2.0.1.
|
-- 26 Nov 95 SAIC Bug fix for ACVC 2.0.1.
|
--
|
--
|
--!
|
--!
|
|
|
with Report;
|
with Report;
|
with Ada.Calendar;
|
with Ada.Calendar;
|
with ImpDef;
|
with ImpDef;
|
procedure C974002 is
|
procedure C974002 is
|
|
|
function "-" (Left: Ada.Calendar.Time; Right: Duration )
|
function "-" (Left: Ada.Calendar.Time; Right: Duration )
|
return Ada.Calendar.Time renames Ada.Calendar."-";
|
return Ada.Calendar.Time renames Ada.Calendar."-";
|
function "+" (Left: Ada.Calendar.Time; Right: Duration )
|
function "+" (Left: Ada.Calendar.Time; Right: Duration )
|
return Ada.Calendar.Time renames Ada.Calendar."+";
|
return Ada.Calendar.Time renames Ada.Calendar."+";
|
|
|
Abortable_Part_Executed : Boolean;
|
Abortable_Part_Executed : Boolean;
|
Triggering_Alternative_Executed : Boolean;
|
Triggering_Alternative_Executed : Boolean;
|
|
|
|
|
--========================================================--
|
--========================================================--
|
|
|
|
|
procedure Quick_Calculation is
|
procedure Quick_Calculation is
|
begin
|
begin
|
if Report.Equal (1, 1) then
|
if Report.Equal (1, 1) then
|
Abortable_Part_Executed := True;
|
Abortable_Part_Executed := True;
|
end if;
|
end if;
|
end Quick_Calculation;
|
end Quick_Calculation;
|
|
|
|
|
--========================================================--
|
--========================================================--
|
|
|
|
|
task type Timed_Calculation_Task is
|
task type Timed_Calculation_Task is
|
entry Calculation (Time_Out : in Ada.Calendar.Time);
|
entry Calculation (Time_Out : in Ada.Calendar.Time);
|
end Timed_Calculation_Task;
|
end Timed_Calculation_Task;
|
|
|
|
|
task body Timed_Calculation_Task is
|
task body Timed_Calculation_Task is
|
begin
|
begin
|
loop
|
loop
|
select
|
select
|
accept Calculation (Time_Out : in Ada.Calendar.Time) do
|
accept Calculation (Time_Out : in Ada.Calendar.Time) do
|
|
|
-- --
|
-- --
|
-- Asynchronous select is tested here --
|
-- Asynchronous select is tested here --
|
-- --
|
-- --
|
|
|
select
|
select
|
delay until Time_Out; -- Triggering
|
delay until Time_Out; -- Triggering
|
-- statement.
|
-- statement.
|
|
|
Triggering_Alternative_Executed := True; -- Triggering
|
Triggering_Alternative_Executed := True; -- Triggering
|
-- alternative.
|
-- alternative.
|
then abort
|
then abort
|
Quick_Calculation; -- Abortable part.
|
Quick_Calculation; -- Abortable part.
|
end select;
|
end select;
|
end Calculation;
|
end Calculation;
|
or
|
or
|
terminate;
|
terminate;
|
end select;
|
end select;
|
end loop;
|
end loop;
|
exception
|
exception
|
when others =>
|
when others =>
|
Report.Failed ("Unexpected exception in Timed_Calculation_Task");
|
Report.Failed ("Unexpected exception in Timed_Calculation_Task");
|
end Timed_Calculation_Task;
|
end Timed_Calculation_Task;
|
|
|
|
|
--========================================================--
|
--========================================================--
|
|
|
|
|
Start_Time : constant Ada.Calendar.Time :=
|
Start_Time : constant Ada.Calendar.Time :=
|
Ada.Calendar.Time_of (1901,1,1);
|
Ada.Calendar.Time_of (1901,1,1);
|
Minute : constant Duration := 60.0;
|
Minute : constant Duration := 60.0;
|
|
|
|
|
--========================================================--
|
--========================================================--
|
|
|
|
|
begin -- Main program.
|
begin -- Main program.
|
|
|
Report.Test ("C974002", "Asynchronous Select with Delay_Until");
|
Report.Test ("C974002", "Asynchronous Select with Delay_Until");
|
|
|
-- take care of implementations that start the clock at 1/1/01
|
-- take care of implementations that start the clock at 1/1/01
|
delay ImpDef.Delay_For_Time_Past;
|
delay ImpDef.Delay_For_Time_Past;
|
|
|
|
|
Abortable_Part_Executed := False;
|
Abortable_Part_Executed := False;
|
Triggering_Alternative_Executed := False;
|
Triggering_Alternative_Executed := False;
|
|
|
NO_DELAY_SUBTEST:
|
NO_DELAY_SUBTEST:
|
|
|
declare
|
declare
|
-- Set Expiry to a time which has already passed
|
-- Set Expiry to a time which has already passed
|
Expiry : constant Ada.Calendar.Time := Start_Time;
|
Expiry : constant Ada.Calendar.Time := Start_Time;
|
Timed : Timed_Calculation_Task;
|
Timed : Timed_Calculation_Task;
|
begin
|
begin
|
|
|
-- Expiry is the time to be specified in the delay_until statement
|
-- Expiry is the time to be specified in the delay_until statement
|
-- of the asynchronous select. Since it has already passed, the
|
-- of the asynchronous select. Since it has already passed, the
|
-- abortable part should not execute, and the sequence of statements
|
-- abortable part should not execute, and the sequence of statements
|
-- of the triggering alternative should be executed.
|
-- of the triggering alternative should be executed.
|
|
|
Timed.Calculation (Time_Out => Expiry); -- Asynchronous select
|
Timed.Calculation (Time_Out => Expiry); -- Asynchronous select
|
-- inside accept block.
|
-- inside accept block.
|
if Abortable_Part_Executed then
|
if Abortable_Part_Executed then
|
Report.Failed ("No delay: Abortable part was executed");
|
Report.Failed ("No delay: Abortable part was executed");
|
end if;
|
end if;
|
|
|
if not Triggering_Alternative_Executed then
|
if not Triggering_Alternative_Executed then
|
Report.Failed ("No delay: triggering alternative sequence " &
|
Report.Failed ("No delay: triggering alternative sequence " &
|
"of statements was not executed");
|
"of statements was not executed");
|
end if;
|
end if;
|
end No_Delay_Subtest;
|
end No_Delay_Subtest;
|
|
|
|
|
Abortable_Part_Executed := False;
|
Abortable_Part_Executed := False;
|
Triggering_Alternative_Executed := False;
|
Triggering_Alternative_Executed := False;
|
|
|
LONG_DELAY_SUBTEST:
|
LONG_DELAY_SUBTEST:
|
|
|
declare
|
declare
|
|
|
-- Quick_Calculation should finish before expiry.
|
-- Quick_Calculation should finish before expiry.
|
Expiry : constant Ada.Calendar.Time :=
|
Expiry : constant Ada.Calendar.Time :=
|
Ada.Calendar.Clock + Minute;
|
Ada.Calendar.Clock + Minute;
|
Timed : Timed_Calculation_Task;
|
Timed : Timed_Calculation_Task;
|
|
|
begin
|
begin
|
|
|
-- Expiry is the time to be specified in the delay_until statement
|
-- Expiry is the time to be specified in the delay_until statement
|
-- of the asynchronous select. It should not pass before the abortable
|
-- of the asynchronous select. It should not pass before the abortable
|
-- part completes, at which time control should return to the caller;
|
-- part completes, at which time control should return to the caller;
|
-- the sequence of statements of the triggering alternative should
|
-- the sequence of statements of the triggering alternative should
|
-- not be executed.
|
-- not be executed.
|
|
|
Timed.Calculation (Time_Out => Expiry); -- Asynchronous select.
|
Timed.Calculation (Time_Out => Expiry); -- Asynchronous select.
|
|
|
if not Abortable_Part_Executed then
|
if not Abortable_Part_Executed then
|
Report.Failed ("Long delay: Abortable part was not executed");
|
Report.Failed ("Long delay: Abortable part was not executed");
|
end if;
|
end if;
|
|
|
if Triggering_Alternative_Executed then
|
if Triggering_Alternative_Executed then
|
Report.Failed ("Long delay: triggering alternative sequence " &
|
Report.Failed ("Long delay: triggering alternative sequence " &
|
"of statements was executed");
|
"of statements was executed");
|
end if;
|
end if;
|
end Long_Delay_Subtest;
|
end Long_Delay_Subtest;
|
|
|
|
|
Report.Result;
|
Report.Result;
|
|
|
end C974002;
|
end C974002;
|
|
|
