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-- C954025.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 if the original entry call was a conditional entry call,
-- the call is cancelled if a requeue-with-abort of the call is not
-- selected immediately.
-- Check that if the original entry call was a timed entry call, the
-- expiration time for a requeue-with-abort is the original expiration
-- time.
--
-- TEST DESCRIPTION:
-- This test declares two tasks: Launch_Control and Mission_Control.
-- Mission_Control instructs Launch_Control to start its countdown
-- and then requeues (with abort) to the Launch_Control.Launch
-- entry. This call to Launch will be accepted at the end of the
-- countdown (if the task is still waiting).
-- The main task does an unconditional, conditional, and timed
-- entry call to Mission_Control and checks to see if the launch
-- was accepted.
--
--
-- CHANGE HISTORY:
-- 18 OCT 95 SAIC ACVC 2.1
-- 10 JUL 96 SAIC Incorporated reviewer's comments.
--
--!
with Calendar; use type Calendar.Time;
with Report;
with ImpDef;
procedure C954025 is
Verbose : constant Boolean := False;
Countdown_Amount : constant Duration := 2.0 * Impdef.One_Long_Second;
Plenty_Of_Time : constant Duration :=
Countdown_Amount + ImpDef.Clear_Ready_Queue + 1.0 * Impdef.One_Long_Second;
Not_Enough_Time : constant Duration :=
Countdown_Amount - 0.5 * Impdef.One_Long_Second;
begin
Report.Test ("C954025",
"Check that if the original entry" &
" call was a conditional or timed entry call, the" &
" expiration time for a requeue with abort is the" &
" original expiration time");
declare
-- note that the following object is a shared object and its use
-- governed by the rules of 9.10(3,4,8);6.0
Launch_Accepted : Boolean := False;
task Launch_Control is
entry Enable_Launch_Control;
entry Start_Countdown (How_Long : Duration);
-- Launch will be accepted if a call is waiting when the countdown
-- reaches 0
entry Launch;
end Launch_Control;
task body Launch_Control is
Wait_Amount : Duration := 0.0;
begin
loop
select
accept Enable_Launch_Control do
Launch_Accepted := False;
end Enable_Launch_Control;
or
terminate;
end select;
accept Start_Countdown (How_Long : Duration) do
Wait_Amount := How_Long;
end Start_Countdown;
delay Wait_Amount;
select
accept Launch do
Launch_Accepted := True;
end Launch;
else
null;
-- note that Launch_Accepted is False here
end select;
end loop;
end Launch_Control;
task Mission_Control is
-- launch will occur if we are given enough time to complete
-- a standard countdown. We will not be rushed!
entry Do_Launch;
end Mission_Control;
task body Mission_Control is
begin
loop
select
accept Do_Launch do
Launch_Control.Start_Countdown (Countdown_Amount);
requeue Launch_Control.Launch with abort;
end Do_Launch;
or
terminate;
end select;
end loop;
end Mission_Control;
begin -- test encapsulation
-- unconditional entry call to check the simple case
Launch_Control.Enable_Launch_Control;
Mission_Control.Do_Launch;
if Launch_Accepted then
if Verbose then
Report.Comment ("simple case passed");
end if;
else
Report.Failed ("simple case");
end if;
-- timed but with plenty of time - delay relative
Launch_Control.Enable_Launch_Control;
select
Mission_Control.Do_Launch;
or
delay Plenty_Of_Time;
if Launch_Accepted then
Report.Failed ("plenty of time timed out after accept (1)");
end if;
end select;
if Launch_Accepted then
if Verbose then
Report.Comment ("plenty of time case passed (1)");
end if;
else
Report.Failed ("plenty of time (1)");
end if;
-- timed but with plenty of time -- delay until
Launch_Control.Enable_Launch_Control;
select
Mission_Control.Do_Launch;
or
delay until Calendar.Clock + Plenty_Of_Time;
if Launch_Accepted then
Report.Failed ("plenty of time timed out after accept(2)");
end if;
end select;
if Launch_Accepted then
if Verbose then
Report.Comment ("plenty of time case passed (2)");
end if;
else
Report.Failed ("plenty of time (2)");
end if;
-- timed without enough time - delay relative
Launch_Control.Enable_Launch_Control;
select
Mission_Control.Do_Launch;
Report.Failed ("not enough time completed accept (1)");
or
delay Not_Enough_Time;
end select;
if Launch_Accepted then
Report.Failed ("not enough time (1)");
else
if Verbose then
Report.Comment ("not enough time case passed (1)");
end if;
end if;
-- timed without enough time - delay until
Launch_Control.Enable_Launch_Control;
select
Mission_Control.Do_Launch;
Report.Failed ("not enough time completed accept (2)");
or
delay until Calendar.Clock + Not_Enough_Time;
end select;
if Launch_Accepted then
Report.Failed ("not enough time (2)");
else
if Verbose then
Report.Comment ("not enough time case passed (2)");
end if;
end if;
-- conditional case
Launch_Control.Enable_Launch_Control;
-- make sure Mission_Control is ready to accept immediately
delay ImpDef.Clear_Ready_Queue;
select
Mission_Control.Do_Launch;
Report.Failed ("no time completed accept");
else
if Verbose then
Report.Comment ("conditional case - else taken");
end if;
end select;
if Launch_Accepted then
Report.Failed ("no time");
else
if Verbose then
Report.Comment ("no time case passed");
end if;
end if;
end;
Report.Result;
end C954025;
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