-- C940004.A
|
-- C940004.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.
|
--*
|
--*
|
--
|
--
|
-- TEST OBJECTIVE:
|
-- TEST OBJECTIVE:
|
-- Check that a protected record can be used to control access to
|
-- Check that a protected record can be used to control access to
|
-- resources (data internal to the protected record).
|
-- resources (data internal to the protected record).
|
--
|
--
|
-- TEST DESCRIPTION:
|
-- TEST DESCRIPTION:
|
-- Declare a resource descriptor tagged type. Extend the type and
|
-- Declare a resource descriptor tagged type. Extend the type and
|
-- use the extended type in a protected data structure.
|
-- use the extended type in a protected data structure.
|
-- Implement a binary semaphore type. Declare an entry for
|
-- Implement a binary semaphore type. Declare an entry for
|
-- requesting a specific resource and an procedure for releasing the
|
-- requesting a specific resource and an procedure for releasing the
|
-- same resource. Declare an object of this (protected) type.
|
-- same resource. Declare an object of this (protected) type.
|
-- Declare and start three tasks each of which asks for a resource
|
-- Declare and start three tasks each of which asks for a resource
|
-- when directed to. Verify that resources are properly allocated
|
-- when directed to. Verify that resources are properly allocated
|
-- and deallocated.
|
-- and deallocated.
|
--
|
--
|
--
|
--
|
-- CHANGE HISTORY:
|
-- CHANGE HISTORY:
|
--
|
--
|
-- 12 DEC 93 SAIC Initial PreRelease version
|
-- 12 DEC 93 SAIC Initial PreRelease version
|
-- 23 JUL 95 SAIC Second PreRelease version
|
-- 23 JUL 95 SAIC Second PreRelease version
|
-- 16 OCT 95 SAIC ACVC 2.1
|
-- 16 OCT 95 SAIC ACVC 2.1
|
-- 13 MAR 03 RLB Fixed race condition in test.
|
-- 13 MAR 03 RLB Fixed race condition in test.
|
--
|
--
|
--!
|
--!
|
|
|
package C940004_0 is
|
package C940004_0 is
|
-- Resource_Pkg
|
-- Resource_Pkg
|
|
|
type ID_Type is new Integer range 0..10;
|
type ID_Type is new Integer range 0..10;
|
type User_Descriptor_Type is tagged record
|
type User_Descriptor_Type is tagged record
|
Id : ID_Type := 0;
|
Id : ID_Type := 0;
|
end record;
|
end record;
|
|
|
end C940004_0; -- Resource_Pkg
|
end C940004_0; -- Resource_Pkg
|
|
|
--============================--
|
--============================--
|
-- no body for C940004_0
|
-- no body for C940004_0
|
--=============================--
|
--=============================--
|
|
|
with C940004_0; -- Resource_Pkg
|
with C940004_0; -- Resource_Pkg
|
|
|
-- This generic package implements a semaphore to control a single resource
|
-- This generic package implements a semaphore to control a single resource
|
|
|
generic
|
generic
|
|
|
type Generic_Record_Type is new C940004_0.User_Descriptor_Type
|
type Generic_Record_Type is new C940004_0.User_Descriptor_Type
|
with private;
|
with private;
|
|
|
package C940004_1 is
|
package C940004_1 is
|
-- Generic_Semaphore_Pkg
|
-- Generic_Semaphore_Pkg
|
-- generic package extends the tagged formal generic
|
-- generic package extends the tagged formal generic
|
-- type with some implementation relevant details, and
|
-- type with some implementation relevant details, and
|
-- it provides a semaphore with operations that work
|
-- it provides a semaphore with operations that work
|
-- on that type
|
-- on that type
|
type User_Rec_Type is new Generic_Record_Type with private;
|
type User_Rec_Type is new Generic_Record_Type with private;
|
|
|
protected type Semaphore_Type is
|
protected type Semaphore_Type is
|
function TC_Count return Integer;
|
function TC_Count return Integer;
|
entry Request (R : in out User_Rec_Type);
|
entry Request (R : in out User_Rec_Type);
|
procedure Release (R : in out User_Rec_Type);
|
procedure Release (R : in out User_Rec_Type);
|
private
|
private
|
In_Use : Boolean := false;
|
In_Use : Boolean := false;
|
end Semaphore_Type;
|
end Semaphore_Type;
|
|
|
function Has_Access (R : User_Rec_Type) return Boolean;
|
function Has_Access (R : User_Rec_Type) return Boolean;
|
|
|
private
|
private
|
|
|
type User_Rec_Type is new Generic_Record_Type with record
|
type User_Rec_Type is new Generic_Record_Type with record
|
Access_To_Resource : boolean := false;
|
Access_To_Resource : boolean := false;
|
end record;
|
end record;
|
|
|
end C940004_1; -- Generic_Semaphore_Pkg
|
end C940004_1; -- Generic_Semaphore_Pkg
|
|
|
--===================================================--
|
--===================================================--
|
|
|
package body C940004_1 is
|
package body C940004_1 is
|
-- Generic_Semaphore_Pkg
|
-- Generic_Semaphore_Pkg
|
|
|
protected body Semaphore_Type is
|
protected body Semaphore_Type is
|
|
|
function TC_Count return Integer is
|
function TC_Count return Integer is
|
begin
|
begin
|
return Request'Count;
|
return Request'Count;
|
end TC_Count;
|
end TC_Count;
|
|
|
entry Request (R : in out User_Rec_Type)
|
entry Request (R : in out User_Rec_Type)
|
when not In_Use is
|
when not In_Use is
|
begin
|
begin
|
In_Use := true;
|
In_Use := true;
|
R.Access_To_Resource := true;
|
R.Access_To_Resource := true;
|
end Request;
|
end Request;
|
|
|
procedure Release (R : in out User_Rec_Type) is
|
procedure Release (R : in out User_Rec_Type) is
|
begin
|
begin
|
In_Use := false;
|
In_Use := false;
|
R.Access_To_Resource := false;
|
R.Access_To_Resource := false;
|
end Release;
|
end Release;
|
|
|
end Semaphore_Type;
|
end Semaphore_Type;
|
|
|
function Has_Access (R : User_Rec_Type) return Boolean is
|
function Has_Access (R : User_Rec_Type) return Boolean is
|
begin
|
begin
|
return R.Access_To_Resource;
|
return R.Access_To_Resource;
|
end Has_Access;
|
end Has_Access;
|
|
|
end C940004_1; -- Generic_Semaphore_Pkg
|
end C940004_1; -- Generic_Semaphore_Pkg
|
|
|
--=============================================--
|
--=============================================--
|
|
|
with Report;
|
with Report;
|
with C940004_0; -- Resource_Pkg,
|
with C940004_0; -- Resource_Pkg,
|
with C940004_1; -- Generic_Semaphore_Pkg;
|
with C940004_1; -- Generic_Semaphore_Pkg;
|
|
|
package C940004_2 is
|
package C940004_2 is
|
-- Printer_Mgr_Pkg
|
-- Printer_Mgr_Pkg
|
|
|
-- Instantiate the generic to get code to manage a single printer;
|
-- Instantiate the generic to get code to manage a single printer;
|
-- User processes contend for the printer, asking for it by a call
|
-- User processes contend for the printer, asking for it by a call
|
-- to Request, and relinquishing it by a call to Release
|
-- to Request, and relinquishing it by a call to Release
|
|
|
-- This package extends a tagged type to customize it for the printer
|
-- This package extends a tagged type to customize it for the printer
|
-- in question, then it uses the type to instantiate the generic and
|
-- in question, then it uses the type to instantiate the generic and
|
-- declare a semaphore specific to the particular resource
|
-- declare a semaphore specific to the particular resource
|
|
|
package Resource_Pkg renames C940004_0;
|
package Resource_Pkg renames C940004_0;
|
|
|
type User_Desc_Type is new Resource_Pkg.User_Descriptor_Type with record
|
type User_Desc_Type is new Resource_Pkg.User_Descriptor_Type with record
|
New_Details : Integer := 0; -- for example
|
New_Details : Integer := 0; -- for example
|
end record;
|
end record;
|
|
|
package Instantiation is new C940004_1 -- Generic_Semaphore_Pkg
|
package Instantiation is new C940004_1 -- Generic_Semaphore_Pkg
|
(Generic_Record_Type => User_Desc_Type);
|
(Generic_Record_Type => User_Desc_Type);
|
|
|
Printer_Access_Mgr : Instantiation.Semaphore_Type;
|
Printer_Access_Mgr : Instantiation.Semaphore_Type;
|
|
|
|
|
end C940004_2; -- Printer_Mgr_Pkg
|
end C940004_2; -- Printer_Mgr_Pkg
|
|
|
--============================--
|
--============================--
|
-- no body for C940004_2
|
-- no body for C940004_2
|
--============================--
|
--============================--
|
|
|
with C940004_0; -- Resource_Pkg,
|
with C940004_0; -- Resource_Pkg,
|
with C940004_2; -- Printer_Mgr_Pkg;
|
with C940004_2; -- Printer_Mgr_Pkg;
|
|
|
package C940004_3 is
|
package C940004_3 is
|
-- User_Task_Pkg
|
-- User_Task_Pkg
|
|
|
-- This package models user tasks that will request and release
|
-- This package models user tasks that will request and release
|
-- the printer
|
-- the printer
|
package Resource_Pkg renames C940004_0;
|
package Resource_Pkg renames C940004_0;
|
package Printer_Mgr_Pkg renames C940004_2;
|
package Printer_Mgr_Pkg renames C940004_2;
|
|
|
task type User_Task_Type (ID : Resource_Pkg.ID_Type) is
|
task type User_Task_Type (ID : Resource_Pkg.ID_Type) is
|
entry Get_Printer; -- instructs task to request resource
|
entry Get_Printer; -- instructs task to request resource
|
|
|
entry Release_Printer -- instructs task to release printer
|
entry Release_Printer -- instructs task to release printer
|
(Descriptor : in out Printer_Mgr_pkg.Instantiation.User_Rec_Type);
|
(Descriptor : in out Printer_Mgr_pkg.Instantiation.User_Rec_Type);
|
|
|
--==================--
|
--==================--
|
-- Test management machinery
|
-- Test management machinery
|
--==================--
|
--==================--
|
entry TC_Get_Descriptor -- returns descriptor
|
entry TC_Get_Descriptor -- returns descriptor
|
(Descriptor : out Printer_Mgr_Pkg.Instantiation.User_Rec_Type);
|
(Descriptor : out Printer_Mgr_Pkg.Instantiation.User_Rec_Type);
|
|
|
end User_Task_Type;
|
end User_Task_Type;
|
|
|
--==================--
|
--==================--
|
-- Test management machinery
|
-- Test management machinery
|
--==================--
|
--==================--
|
TC_Times_Obtained : Integer := 0;
|
TC_Times_Obtained : Integer := 0;
|
TC_Times_Released : Integer := 0;
|
TC_Times_Released : Integer := 0;
|
|
|
end C940004_3; -- User_Task_Pkg;
|
end C940004_3; -- User_Task_Pkg;
|
|
|
--==============================================--
|
--==============================================--
|
|
|
with Report;
|
with Report;
|
with C940004_0; -- Resource_Pkg,
|
with C940004_0; -- Resource_Pkg,
|
with C940004_2; -- Printer_Mgr_Pkg,
|
with C940004_2; -- Printer_Mgr_Pkg,
|
|
|
package body C940004_3 is
|
package body C940004_3 is
|
-- User_Task_Pkg
|
-- User_Task_Pkg
|
|
|
task body User_Task_Type is
|
task body User_Task_Type is
|
D : Printer_Mgr_Pkg.Instantiation.User_Rec_Type;
|
D : Printer_Mgr_Pkg.Instantiation.User_Rec_Type;
|
begin
|
begin
|
D.Id := ID;
|
D.Id := ID;
|
-----------------------------------
|
-----------------------------------
|
Main:
|
Main:
|
loop
|
loop
|
select
|
select
|
accept Get_Printer;
|
accept Get_Printer;
|
Printer_Mgr_Pkg.Printer_Access_Mgr.Request (D);
|
Printer_Mgr_Pkg.Printer_Access_Mgr.Request (D);
|
-- request resource; if resource is not available,
|
-- request resource; if resource is not available,
|
-- task will be queued to wait
|
-- task will be queued to wait
|
--===================--
|
--===================--
|
-- Test management machinery
|
-- Test management machinery
|
--===================--
|
--===================--
|
TC_Times_Obtained := TC_Times_Obtained + 1;
|
TC_Times_Obtained := TC_Times_Obtained + 1;
|
-- when request granted, note it and post a message
|
-- when request granted, note it and post a message
|
|
|
or
|
or
|
accept Release_Printer (Descriptor : in out
|
accept Release_Printer (Descriptor : in out
|
Printer_Mgr_Pkg.Instantiation.User_Rec_Type) do
|
Printer_Mgr_Pkg.Instantiation.User_Rec_Type) do
|
|
|
Printer_Mgr_Pkg.Printer_Access_Mgr.Release (D);
|
Printer_Mgr_Pkg.Printer_Access_Mgr.Release (D);
|
-- release the resource, note its release
|
-- release the resource, note its release
|
TC_Times_Released := TC_Times_Released + 1;
|
TC_Times_Released := TC_Times_Released + 1;
|
Descriptor := D;
|
Descriptor := D;
|
end Release_Printer;
|
end Release_Printer;
|
exit Main;
|
exit Main;
|
|
|
or
|
or
|
accept TC_Get_Descriptor (Descriptor : out
|
accept TC_Get_Descriptor (Descriptor : out
|
Printer_Mgr_Pkg.Instantiation.User_Rec_Type) do
|
Printer_Mgr_Pkg.Instantiation.User_Rec_Type) do
|
|
|
Descriptor := D;
|
Descriptor := D;
|
end TC_Get_Descriptor;
|
end TC_Get_Descriptor;
|
|
|
end select;
|
end select;
|
end loop main;
|
end loop main;
|
|
|
exception
|
exception
|
when others => Report.Failed ("exception raised in User_Task");
|
when others => Report.Failed ("exception raised in User_Task");
|
end User_Task_Type;
|
end User_Task_Type;
|
|
|
end C940004_3; -- User_Task_Pkg;
|
end C940004_3; -- User_Task_Pkg;
|
|
|
--==========================================================--
|
--==========================================================--
|
|
|
with Report;
|
with Report;
|
with ImpDef;
|
with ImpDef;
|
|
|
with C940004_0; -- Resource_Pkg,
|
with C940004_0; -- Resource_Pkg,
|
with C940004_2; -- Printer_Mgr_Pkg,
|
with C940004_2; -- Printer_Mgr_Pkg,
|
with C940004_3; -- User_Task_Pkg;
|
with C940004_3; -- User_Task_Pkg;
|
|
|
procedure C940004 is
|
procedure C940004 is
|
Verbose : constant Boolean := False;
|
Verbose : constant Boolean := False;
|
package Resource_Pkg renames C940004_0;
|
package Resource_Pkg renames C940004_0;
|
package Printer_Mgr_Pkg renames C940004_2;
|
package Printer_Mgr_Pkg renames C940004_2;
|
package User_Task_Pkg renames C940004_3;
|
package User_Task_Pkg renames C940004_3;
|
|
|
Task1 : User_Task_Pkg.User_Task_Type (1);
|
Task1 : User_Task_Pkg.User_Task_Type (1);
|
Task2 : User_Task_Pkg.User_Task_Type (2);
|
Task2 : User_Task_Pkg.User_Task_Type (2);
|
Task3 : User_Task_Pkg.User_Task_Type (3);
|
Task3 : User_Task_Pkg.User_Task_Type (3);
|
|
|
User_Rec_1,
|
User_Rec_1,
|
User_Rec_2,
|
User_Rec_2,
|
User_Rec_3 : Printer_Mgr_Pkg.Instantiation.User_Rec_Type;
|
User_Rec_3 : Printer_Mgr_Pkg.Instantiation.User_Rec_Type;
|
|
|
begin
|
begin
|
|
|
Report.Test ("C940004", "Check that a protected record can be used to " &
|
Report.Test ("C940004", "Check that a protected record can be used to " &
|
"control access to resources");
|
"control access to resources");
|
|
|
if (User_Task_Pkg.TC_Times_Obtained /= 0)
|
if (User_Task_Pkg.TC_Times_Obtained /= 0)
|
or (User_Task_Pkg.TC_Times_Released /= 0)
|
or (User_Task_Pkg.TC_Times_Released /= 0)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_1)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_1)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_2)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_2)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_3) then
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_3) then
|
Report.Failed ("Wrong initial conditions");
|
Report.Failed ("Wrong initial conditions");
|
end if;
|
end if;
|
|
|
Task1.Get_Printer; -- ask for resource
|
Task1.Get_Printer; -- ask for resource
|
-- request for resource should be granted
|
-- request for resource should be granted
|
Task1.TC_Get_Descriptor (User_Rec_1);-- wait here 'til task gets resource
|
Task1.TC_Get_Descriptor (User_Rec_1);-- wait here 'til task gets resource
|
|
|
if (User_Task_Pkg.TC_Times_Obtained /= 1)
|
if (User_Task_Pkg.TC_Times_Obtained /= 1)
|
or (User_Task_Pkg.TC_Times_Released /= 0)
|
or (User_Task_Pkg.TC_Times_Released /= 0)
|
or not Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_1) then
|
or not Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_1) then
|
Report.Failed ("Resource not assigned to task 1");
|
Report.Failed ("Resource not assigned to task 1");
|
end if;
|
end if;
|
|
|
Task2.Get_Printer; -- ask for resource
|
Task2.Get_Printer; -- ask for resource
|
-- request for resource should be denied
|
-- request for resource should be denied
|
-- and task queued to wait
|
-- and task queued to wait
|
|
|
-- Task 1 still waiting to accept Release_Printer, still holds resource
|
-- Task 1 still waiting to accept Release_Printer, still holds resource
|
-- Task 2 queued on Semaphore.Request
|
-- Task 2 queued on Semaphore.Request
|
|
|
-- Ensure that Task2 is queued before continuing to make checks and queue
|
-- Ensure that Task2 is queued before continuing to make checks and queue
|
-- Task3. We use a for loop here to avoid hangs in broken implementations.
|
-- Task3. We use a for loop here to avoid hangs in broken implementations.
|
for TC_Cnt in 1 .. 20 loop
|
for TC_Cnt in 1 .. 20 loop
|
exit when Printer_Mgr_Pkg.Printer_Access_Mgr.TC_Count >= 1;
|
exit when Printer_Mgr_Pkg.Printer_Access_Mgr.TC_Count >= 1;
|
delay Impdef.Minimum_Task_Switch;
|
delay Impdef.Minimum_Task_Switch;
|
end loop;
|
end loop;
|
|
|
if (User_Task_Pkg.TC_Times_Obtained /= 1)
|
if (User_Task_Pkg.TC_Times_Obtained /= 1)
|
or (User_Task_Pkg.TC_Times_Released /= 0) then
|
or (User_Task_Pkg.TC_Times_Released /= 0) then
|
Report.Failed ("Resource assigned to task 2");
|
Report.Failed ("Resource assigned to task 2");
|
end if;
|
end if;
|
|
|
Task3.Get_Printer; -- ask for resource
|
Task3.Get_Printer; -- ask for resource
|
-- request for resource should be denied
|
-- request for resource should be denied
|
-- and task 3 queued on Semaphore.Request
|
-- and task 3 queued on Semaphore.Request
|
|
|
Task1.Release_Printer (User_Rec_1);-- task 1 releases resource
|
Task1.Release_Printer (User_Rec_1);-- task 1 releases resource
|
-- released resource should be given to
|
-- released resource should be given to
|
-- queued task 2.
|
-- queued task 2.
|
|
|
Task2.TC_Get_Descriptor (User_Rec_2);-- wait here for task 2
|
Task2.TC_Get_Descriptor (User_Rec_2);-- wait here for task 2
|
|
|
-- Task 1 has released resource and completed
|
-- Task 1 has released resource and completed
|
-- Task 2 has seized the resource
|
-- Task 2 has seized the resource
|
-- Task 3 is queued on Semaphore.Request
|
-- Task 3 is queued on Semaphore.Request
|
|
|
if (User_Task_Pkg.TC_Times_Obtained /= 2)
|
if (User_Task_Pkg.TC_Times_Obtained /= 2)
|
or (User_Task_Pkg.TC_Times_Released /= 1)
|
or (User_Task_Pkg.TC_Times_Released /= 1)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_1)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_1)
|
or not Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_2) then
|
or not Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_2) then
|
Report.Failed ("Resource not properly released/assigned" &
|
Report.Failed ("Resource not properly released/assigned" &
|
" to task 2");
|
" to task 2");
|
if Verbose then
|
if Verbose then
|
Report.Comment ("TC_Times_Obtained: " &
|
Report.Comment ("TC_Times_Obtained: " &
|
Integer'Image (User_Task_Pkg.TC_Times_Obtained));
|
Integer'Image (User_Task_Pkg.TC_Times_Obtained));
|
Report.Comment ("TC_Times_Released: " &
|
Report.Comment ("TC_Times_Released: " &
|
Integer'Image (User_Task_Pkg.TC_Times_Released));
|
Integer'Image (User_Task_Pkg.TC_Times_Released));
|
Report.Comment ("User 1 Has_Access:" &
|
Report.Comment ("User 1 Has_Access:" &
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Has_Access (User_Rec_1)));
|
Has_Access (User_Rec_1)));
|
Report.Comment ("User 2 Has_Access:" &
|
Report.Comment ("User 2 Has_Access:" &
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Has_Access (User_Rec_2)));
|
Has_Access (User_Rec_2)));
|
end if;
|
end if;
|
end if;
|
end if;
|
|
|
Task2.Release_Printer (User_Rec_2);-- task 2 releases resource
|
Task2.Release_Printer (User_Rec_2);-- task 2 releases resource
|
|
|
-- task 3 is released from queue, and is given resource
|
-- task 3 is released from queue, and is given resource
|
|
|
Task3.TC_Get_Descriptor (User_Rec_3);-- wait for task 3
|
Task3.TC_Get_Descriptor (User_Rec_3);-- wait for task 3
|
|
|
if (User_Task_Pkg.TC_Times_Obtained /= 3)
|
if (User_Task_Pkg.TC_Times_Obtained /= 3)
|
or (User_Task_Pkg.TC_Times_Released /= 2)
|
or (User_Task_Pkg.TC_Times_Released /= 2)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_2)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_2)
|
or not Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_3) then
|
or not Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_3) then
|
Report.Failed ("Resource not properly released/assigned " &
|
Report.Failed ("Resource not properly released/assigned " &
|
"to task 3");
|
"to task 3");
|
if Verbose then
|
if Verbose then
|
Report.Comment ("TC_Times_Obtained: " &
|
Report.Comment ("TC_Times_Obtained: " &
|
Integer'Image (User_Task_Pkg.TC_Times_Obtained));
|
Integer'Image (User_Task_Pkg.TC_Times_Obtained));
|
Report.Comment ("TC_Times_Released: " &
|
Report.Comment ("TC_Times_Released: " &
|
Integer'Image (User_Task_Pkg.TC_Times_Released));
|
Integer'Image (User_Task_Pkg.TC_Times_Released));
|
Report.Comment ("User 1 Has_Access:" &
|
Report.Comment ("User 1 Has_Access:" &
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Has_Access (User_Rec_1)));
|
Has_Access (User_Rec_1)));
|
Report.Comment ("User 2 Has_Access:" &
|
Report.Comment ("User 2 Has_Access:" &
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Has_Access (User_Rec_2)));
|
Has_Access (User_Rec_2)));
|
Report.Comment ("User 3 Has_Access:" &
|
Report.Comment ("User 3 Has_Access:" &
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Has_Access (User_Rec_3)));
|
Has_Access (User_Rec_3)));
|
end if;
|
end if;
|
end if;
|
end if;
|
|
|
Task3.Release_Printer (User_Rec_3);-- task 3 releases resource
|
Task3.Release_Printer (User_Rec_3);-- task 3 releases resource
|
|
|
if (User_Task_Pkg.TC_Times_Obtained /=3)
|
if (User_Task_Pkg.TC_Times_Obtained /=3)
|
or (User_Task_Pkg.TC_Times_Released /=3)
|
or (User_Task_Pkg.TC_Times_Released /=3)
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_3) then
|
or Printer_Mgr_Pkg.Instantiation.Has_Access (User_Rec_3) then
|
Report.Failed ("Resource not properly released by task 3");
|
Report.Failed ("Resource not properly released by task 3");
|
if Verbose then
|
if Verbose then
|
Report.Comment ("TC_Times_Obtained: " &
|
Report.Comment ("TC_Times_Obtained: " &
|
Integer'Image (User_Task_Pkg.TC_Times_Obtained));
|
Integer'Image (User_Task_Pkg.TC_Times_Obtained));
|
Report.Comment ("TC_Times_Released: " &
|
Report.Comment ("TC_Times_Released: " &
|
Integer'Image (User_Task_Pkg.TC_Times_Released));
|
Integer'Image (User_Task_Pkg.TC_Times_Released));
|
Report.Comment ("User 1 Has_Access:" &
|
Report.Comment ("User 1 Has_Access:" &
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Has_Access (User_Rec_1)));
|
Has_Access (User_Rec_1)));
|
Report.Comment ("User 2 Has_Access:" &
|
Report.Comment ("User 2 Has_Access:" &
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Has_Access (User_Rec_2)));
|
Has_Access (User_Rec_2)));
|
Report.Comment ("User 3 Has_Access:" &
|
Report.Comment ("User 3 Has_Access:" &
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Boolean'Image (Printer_Mgr_Pkg.Instantiation.
|
Has_Access (User_Rec_3)));
|
Has_Access (User_Rec_3)));
|
end if;
|
end if;
|
|
|
end if;
|
end if;
|
|
|
-- Ensure that all tasks have terminated before reporting the result
|
-- Ensure that all tasks have terminated before reporting the result
|
while not (Task1'terminated
|
while not (Task1'terminated
|
and Task2'terminated
|
and Task2'terminated
|
and Task3'terminated) loop
|
and Task3'terminated) loop
|
delay ImpDef.Minimum_Task_Switch;
|
delay ImpDef.Minimum_Task_Switch;
|
end loop;
|
end loop;
|
|
|
Report.Result;
|
Report.Result;
|
|
|
end C940004;
|
end C940004;
|
|
|
