-- C953002.A
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-- C953002.A
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--
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--
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-- Grant of Unlimited Rights
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-- Grant of Unlimited Rights
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--
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--
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- unlimited rights in the software and documentation contained herein.
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-- unlimited rights in the software and documentation contained herein.
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- this public release, the Government intends to confer upon all
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-- this public release, the Government intends to confer upon all
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-- recipients unlimited rights equal to those held by the Government.
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-- recipients unlimited rights equal to those held by the Government.
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-- These rights include rights to use, duplicate, release or disclose the
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-- These rights include rights to use, duplicate, release or disclose the
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-- released technical data and computer software in whole or in part, in
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-- released technical data and computer software in whole or in part, in
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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-- to do so.
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--
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--
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-- DISCLAIMER
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-- DISCLAIMER
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--
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--*
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--
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--
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-- OBJECTIVE:
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-- OBJECTIVE:
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-- Check that the servicing of entry queues of a protected object
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-- Check that the servicing of entry queues of a protected object
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-- continues until there are no open entries with queued calls
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-- continues until there are no open entries with queued calls
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-- and that this takes place as part of a single protected
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-- and that this takes place as part of a single protected
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-- operation.
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-- operation.
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--
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--
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-- TEST DESCRIPTION:
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-- TEST DESCRIPTION:
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-- This test enqueues a bunch of tasks on the entries of the
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-- This test enqueues a bunch of tasks on the entries of the
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-- protected object Main_PO. At the same time another bunch of
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-- protected object Main_PO. At the same time another bunch of
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-- of tasks are queued on the single entry of protected object
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-- of tasks are queued on the single entry of protected object
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-- Holding_Pen.
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-- Holding_Pen.
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-- Once all the tasks have had time to block, the main procedure
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-- Once all the tasks have had time to block, the main procedure
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-- opens all the entries for Main_PO by calling the
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-- opens all the entries for Main_PO by calling the
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-- Start_Protected_Operation protected procedure. This should
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-- Start_Protected_Operation protected procedure. This should
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-- process all the pending callers as part of a single protected
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-- process all the pending callers as part of a single protected
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-- operation.
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-- operation.
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-- During this protected operation, the entries of Main_PO release
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-- During this protected operation, the entries of Main_PO release
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-- the tasks blocked on Holding_Pen by calling the protected
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-- the tasks blocked on Holding_Pen by calling the protected
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-- procedure Release.
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-- procedure Release.
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-- Once released from Holding_Pen, the task immediately calls
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-- Once released from Holding_Pen, the task immediately calls
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-- an entry in Main_PO.
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-- an entry in Main_PO.
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-- These new calls should not gain access to Main_PO until
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-- These new calls should not gain access to Main_PO until
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-- the initial protected operation on that object completes.
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-- the initial protected operation on that object completes.
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-- The order in which the entry calls on Main_PO are taken is
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-- The order in which the entry calls on Main_PO are taken is
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-- recorded in a global array and checked after all the tasks
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-- recorded in a global array and checked after all the tasks
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-- have terminated.
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-- have terminated.
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--
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--
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--
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--
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-- CHANGE HISTORY:
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-- CHANGE HISTORY:
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-- 25 OCT 95 SAIC ACVC 2.1
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-- 25 OCT 95 SAIC ACVC 2.1
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-- 15 JAN 95 SAIC Fixed deadlock problem.
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-- 15 JAN 95 SAIC Fixed deadlock problem.
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--
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--
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--!
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--!
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with Report;
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with Report;
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procedure C953002 is
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procedure C953002 is
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Verbose : constant Boolean := False;
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Verbose : constant Boolean := False;
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Half_Tasks : constant := 15; -- how many tasks of each group
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Half_Tasks : constant := 15; -- how many tasks of each group
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Max_Tasks : constant := Half_Tasks * 2; -- total number of tasks
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Max_Tasks : constant := Half_Tasks * 2; -- total number of tasks
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Note_Order : array (1..Max_Tasks) of Integer := (1..Max_Tasks => 0);
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Note_Order : array (1..Max_Tasks) of Integer := (1..Max_Tasks => 0);
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Note_Cnt : Integer := 0;
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Note_Cnt : Integer := 0;
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begin
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begin
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Report.Test ("C953002",
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Report.Test ("C953002",
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"Check that the servicing of entry queues handles all" &
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"Check that the servicing of entry queues handles all" &
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" open entries as part of a single protected operation");
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" open entries as part of a single protected operation");
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declare
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declare
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task type Assault_PO is
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task type Assault_PO is
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entry Take_ID (Id : Integer);
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entry Take_ID (Id : Integer);
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end Assault_PO;
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end Assault_PO;
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First_Wave : array (1 .. Half_Tasks) of Assault_PO;
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First_Wave : array (1 .. Half_Tasks) of Assault_PO;
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Second_Wave : array (1 .. Half_Tasks) of Assault_PO;
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Second_Wave : array (1 .. Half_Tasks) of Assault_PO;
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protected Main_PO is
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protected Main_PO is
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entry E0 (Who : Integer);
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entry E0 (Who : Integer);
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entry E1 (Who : Integer);
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entry E1 (Who : Integer);
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entry E2 (Who : Integer);
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entry E2 (Who : Integer);
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entry E3 (Who : Integer);
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entry E3 (Who : Integer);
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entry All_Present;
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entry All_Present;
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procedure Start_Protected_Operation;
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procedure Start_Protected_Operation;
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private
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private
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Open : Boolean := False;
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Open : Boolean := False;
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end Main_PO;
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end Main_PO;
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protected Holding_Pen is
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protected Holding_Pen is
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-- Note that Release is called by tasks executing in
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-- Note that Release is called by tasks executing in
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-- the protected object Main_PO.
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-- the protected object Main_PO.
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entry Wait (Who : Integer);
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entry Wait (Who : Integer);
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entry All_Present;
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entry All_Present;
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procedure Release;
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procedure Release;
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private
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private
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Open : Boolean := False;
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Open : Boolean := False;
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end Holding_Pen;
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end Holding_Pen;
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protected body Main_PO is
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protected body Main_PO is
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procedure Start_Protected_Operation is
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procedure Start_Protected_Operation is
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begin
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begin
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Open := True;
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Open := True;
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-- at this point all the First_Wave tasks are
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-- at this point all the First_Wave tasks are
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-- waiting at the entries and all of them should
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-- waiting at the entries and all of them should
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-- be processed as part of the protected operation.
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-- be processed as part of the protected operation.
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end Start_Protected_Operation;
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end Start_Protected_Operation;
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entry All_Present when E0'Count + E1'Count + E2'Count + E3'Count =
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entry All_Present when E0'Count + E1'Count + E2'Count + E3'Count =
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Max_Tasks / 2 is
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Max_Tasks / 2 is
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begin
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begin
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null; -- all tasks are waiting
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null; -- all tasks are waiting
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end All_Present;
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end All_Present;
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entry E0 (Who : Integer) when Open is
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entry E0 (Who : Integer) when Open is
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begin
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begin
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Holding_Pen.Release;
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Holding_Pen.Release;
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-- note the order in which entry calls are handled.
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-- note the order in which entry calls are handled.
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Note_Cnt := Note_Cnt + 1;
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Note_Cnt := Note_Cnt + 1;
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Note_Order (Note_Cnt) := Who;
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Note_Order (Note_Cnt) := Who;
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end E0;
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end E0;
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entry E1 (Who : Integer) when Open is
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entry E1 (Who : Integer) when Open is
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begin
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begin
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Holding_Pen.Release;
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Holding_Pen.Release;
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Note_Cnt := Note_Cnt + 1;
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Note_Cnt := Note_Cnt + 1;
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Note_Order (Note_Cnt) := Who;
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Note_Order (Note_Cnt) := Who;
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end E1;
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end E1;
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entry E2 (Who : Integer) when Open is
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entry E2 (Who : Integer) when Open is
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begin
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begin
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Holding_Pen.Release;
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Holding_Pen.Release;
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Note_Cnt := Note_Cnt + 1;
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Note_Cnt := Note_Cnt + 1;
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Note_Order (Note_Cnt) := Who;
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Note_Order (Note_Cnt) := Who;
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end E2;
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end E2;
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entry E3 (Who : Integer) when Open is
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entry E3 (Who : Integer) when Open is
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begin
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begin
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Holding_Pen.Release;
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Holding_Pen.Release;
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Note_Cnt := Note_Cnt + 1;
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Note_Cnt := Note_Cnt + 1;
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Note_Order (Note_Cnt) := Who;
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Note_Order (Note_Cnt) := Who;
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end E3;
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end E3;
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end Main_PO;
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end Main_PO;
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protected body Holding_Pen is
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protected body Holding_Pen is
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procedure Release is
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procedure Release is
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begin
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begin
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Open := True;
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Open := True;
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end Release;
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end Release;
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entry All_Present when Wait'Count = Max_Tasks / 2 is
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entry All_Present when Wait'Count = Max_Tasks / 2 is
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begin
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begin
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null; -- all tasks waiting
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null; -- all tasks waiting
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end All_Present;
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end All_Present;
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entry Wait (Who : Integer) when Open is
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entry Wait (Who : Integer) when Open is
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begin
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begin
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null; -- unblock the task
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null; -- unblock the task
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end Wait;
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end Wait;
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end Holding_Pen;
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end Holding_Pen;
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task body Assault_PO is
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task body Assault_PO is
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Me : Integer;
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Me : Integer;
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begin
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begin
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accept Take_Id (Id : Integer) do
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accept Take_Id (Id : Integer) do
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Me := Id;
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Me := Id;
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end Take_Id;
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end Take_Id;
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if Me >= 200 then
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if Me >= 200 then
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Holding_Pen.Wait (Me);
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Holding_Pen.Wait (Me);
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end if;
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end if;
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case Me mod 4 is
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case Me mod 4 is
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when 0 => Main_PO.E0 (Me);
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when 0 => Main_PO.E0 (Me);
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when 1 => Main_PO.E1 (Me);
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when 1 => Main_PO.E1 (Me);
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when 2 => Main_PO.E2 (Me);
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when 2 => Main_PO.E2 (Me);
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when 3 => Main_PO.E3 (Me);
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when 3 => Main_PO.E3 (Me);
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when others => null; -- cant happen
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when others => null; -- cant happen
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end case;
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end case;
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if Verbose then
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if Verbose then
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Report.Comment ("task" & Integer'Image (Me) &
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Report.Comment ("task" & Integer'Image (Me) &
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" done");
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" done");
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end if;
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end if;
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exception
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exception
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when others =>
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when others =>
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Report.Failed ("exception in task");
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Report.Failed ("exception in task");
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end Assault_PO;
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end Assault_PO;
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begin -- test encapsulation
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begin -- test encapsulation
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for I in First_Wave'Range loop
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for I in First_Wave'Range loop
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First_Wave (I).Take_ID (100 + I);
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First_Wave (I).Take_ID (100 + I);
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end loop;
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end loop;
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for I in Second_Wave'Range loop
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for I in Second_Wave'Range loop
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Second_Wave (I).Take_ID (200 + I);
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Second_Wave (I).Take_ID (200 + I);
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end loop;
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end loop;
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-- let all the tasks get blocked
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-- let all the tasks get blocked
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Main_PO.All_Present;
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Main_PO.All_Present;
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Holding_Pen.All_Present;
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Holding_Pen.All_Present;
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-- let the games begin
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-- let the games begin
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if Verbose then
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if Verbose then
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Report.Comment ("starting protected operation");
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Report.Comment ("starting protected operation");
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end if;
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end if;
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Main_PO.Start_Protected_Operation;
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Main_PO.Start_Protected_Operation;
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-- wait for all the tasks to complete
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-- wait for all the tasks to complete
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if Verbose then
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if Verbose then
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Report.Comment ("waiting for tasks to complete");
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Report.Comment ("waiting for tasks to complete");
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end if;
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end if;
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end;
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end;
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-- make sure all tasks registered their order
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-- make sure all tasks registered their order
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if Note_Cnt /= Max_Tasks then
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if Note_Cnt /= Max_Tasks then
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Report.Failed ("task registration count wrong. " &
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Report.Failed ("task registration count wrong. " &
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Integer'Image (Note_Cnt));
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Integer'Image (Note_Cnt));
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end if;
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end if;
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-- check the order in which entries were handled.
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-- check the order in which entries were handled.
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-- all the 100 level items should be handled as part of the
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-- all the 100 level items should be handled as part of the
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-- first protected operation and thus should be completed
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-- first protected operation and thus should be completed
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-- before any 200 level item.
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-- before any 200 level item.
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if Verbose then
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if Verbose then
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for I in 1..Max_Tasks loop
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for I in 1..Max_Tasks loop
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Report.Comment ("order" & Integer'Image (I) & " is" &
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Report.Comment ("order" & Integer'Image (I) & " is" &
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Integer'Image (Note_Order (I)));
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Integer'Image (Note_Order (I)));
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end loop;
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end loop;
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end if;
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end if;
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for I in 2 .. Max_Tasks loop
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for I in 2 .. Max_Tasks loop
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if Note_Order (I) < 200 and
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if Note_Order (I) < 200 and
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Note_Order (I-1) >= 200 then
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Note_Order (I-1) >= 200 then
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Report.Failed ("protected operation failure" &
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Report.Failed ("protected operation failure" &
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Integer'Image (Note_Order (I-1)) &
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Integer'Image (Note_Order (I-1)) &
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Integer'Image (Note_Order (I)));
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Integer'Image (Note_Order (I)));
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end if;
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end if;
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end loop;
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end loop;
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Report.Result;
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Report.Result;
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end C953002;
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end C953002;
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