-- C954013.A
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-- C954013.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 a requeue is cancelled and that the requeuing task is
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-- Check that a requeue is cancelled and that the requeuing task is
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-- unaffected when the calling task is aborted.
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-- unaffected when the calling task is aborted.
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-- Specifically, check requeue to an entry in a different task,
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-- Specifically, check requeue to an entry in a different task,
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-- requeue where the entry has parameters, and requeue with abort.
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-- requeue where the entry has parameters, and requeue with abort.
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--
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--
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-- TEST DESCRIPTION:
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-- TEST DESCRIPTION:
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-- Abort a task that has a call requeued to the entry queue of another
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-- Abort a task that has a call requeued to the entry queue of another
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-- task. We do this by sending two messages to the Distributor which
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-- task. We do this by sending two messages to the Distributor which
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-- requeues them to the Credit task. In the accept body of the Credit
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-- requeues them to the Credit task. In the accept body of the Credit
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-- task we wait for the second message to arrive then check that an
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-- task we wait for the second message to arrive then check that an
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-- abort of the second message task does result in the requeue being
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-- abort of the second message task does result in the requeue being
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-- removed. The Line Driver task which generates the messages and the
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-- removed. The Line Driver task which generates the messages and the
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-- Credit task communicate artificially in this test to arrange for the
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-- Credit task communicate artificially in this test to arrange for the
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-- proper timing of the messages and the abort. One extra message is
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-- proper timing of the messages and the abort. One extra message is
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-- sent to the Debit task to ensure that the Distributor is still viable
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-- sent to the Debit task to ensure that the Distributor is still viable
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-- and has been unaffected by the abort.
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-- and has been unaffected by the abort.
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--
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--
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-- This series of tests uses a simulation of a transaction driven
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-- This series of tests uses a simulation of a transaction driven
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-- processing system. Line Drivers accept input from an external source
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-- processing system. Line Drivers accept input from an external source
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-- and build them into transaction records. These records are then
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-- and build them into transaction records. These records are then
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-- encapsulated in message tasks which remain extant for the life of the
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-- encapsulated in message tasks which remain extant for the life of the
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-- transaction in the system. The message tasks put themselves on the
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-- transaction in the system. The message tasks put themselves on the
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-- input queue of a Distributor which, from information in the
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-- input queue of a Distributor which, from information in the
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-- transaction and/or system load conditions forwards them to other
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-- transaction and/or system load conditions forwards them to other
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-- operating tasks. These in turn might forward the transactions to yet
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-- operating tasks. These in turn might forward the transactions to yet
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-- other tasks for further action. The routing is, in real life, dynamic
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-- other tasks for further action. The routing is, in real life, dynamic
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-- and unpredictable at the time of message generation. All rerouting in
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-- and unpredictable at the time of message generation. All rerouting in
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-- this model is done by means of requeues.
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-- this model is done by means of requeues.
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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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-- 06 Dec 94 SAIC ACVC 2.0
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-- 06 Dec 94 SAIC ACVC 2.0
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-- 25 Nov 95 SAIC Fixed shared global variable problems for
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-- 25 Nov 95 SAIC Fixed shared global variable problems for
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-- ACVC 2.0.1
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-- ACVC 2.0.1
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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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with ImpDef;
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with ImpDef;
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procedure C954013 is
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procedure C954013 is
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-- Arbitrary test values
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-- Arbitrary test values
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Credit_Return : constant := 1;
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Credit_Return : constant := 1;
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Debit_Return : constant := 2;
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Debit_Return : constant := 2;
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protected type Shared_Boolean (Initial_Value : Boolean := False) is
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protected type Shared_Boolean (Initial_Value : Boolean := False) is
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procedure Set_True;
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procedure Set_True;
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procedure Set_False;
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procedure Set_False;
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function Value return Boolean;
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function Value return Boolean;
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private
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private
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Current_Value : Boolean := Initial_Value;
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Current_Value : Boolean := Initial_Value;
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end Shared_Boolean;
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end Shared_Boolean;
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protected body Shared_Boolean is
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protected body Shared_Boolean is
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procedure Set_True is
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procedure Set_True is
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begin
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begin
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Current_Value := True;
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Current_Value := True;
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end Set_True;
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end Set_True;
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procedure Set_False is
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procedure Set_False is
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begin
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begin
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Current_Value := False;
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Current_Value := False;
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end Set_False;
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end Set_False;
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function Value return Boolean is
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function Value return Boolean is
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begin
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begin
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return Current_Value;
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return Current_Value;
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end Value;
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end Value;
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end Shared_Boolean;
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end Shared_Boolean;
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TC_Debit_Message_Complete : Shared_Boolean (False);
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TC_Debit_Message_Complete : Shared_Boolean (False);
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TC_Credit_Message_Complete : Shared_Boolean (False);
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TC_Credit_Message_Complete : Shared_Boolean (False);
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type Transaction_Code is (Credit, Debit);
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type Transaction_Code is (Credit, Debit);
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type Transaction_Record;
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type Transaction_Record;
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type acc_Transaction_Record is access Transaction_Record;
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type acc_Transaction_Record is access Transaction_Record;
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type Transaction_Record is
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type Transaction_Record is
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record
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record
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ID : integer := 0;
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ID : integer := 0;
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Code : Transaction_Code := Debit;
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Code : Transaction_Code := Debit;
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Account_Number : integer := 0;
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Account_Number : integer := 0;
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Stock_Number : integer := 0;
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Stock_Number : integer := 0;
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Quantity : integer := 0;
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Quantity : integer := 0;
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Return_Value : integer := 0;
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Return_Value : integer := 0;
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TC_Message_Count : integer := 0;
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TC_Message_Count : integer := 0;
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TC_Thru_Dist : Boolean := false;
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TC_Thru_Dist : Boolean := false;
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end record;
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end record;
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task type Message_Task is
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task type Message_Task is
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entry Accept_Transaction (In_Transaction : acc_Transaction_Record);
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entry Accept_Transaction (In_Transaction : acc_Transaction_Record);
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end Message_Task;
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end Message_Task;
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type acc_Message_Task is access Message_Task;
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type acc_Message_Task is access Message_Task;
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task Line_Driver is
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task Line_Driver is
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entry Start;
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entry Start;
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end Line_Driver;
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end Line_Driver;
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task Distributor is
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task Distributor is
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entry Input(Transaction : acc_Transaction_Record);
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entry Input(Transaction : acc_Transaction_Record);
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end Distributor;
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end Distributor;
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task Credit_Computation is
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task Credit_Computation is
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entry Input(Transaction : acc_Transaction_Record);
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entry Input(Transaction : acc_Transaction_Record);
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end Credit_Computation;
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end Credit_Computation;
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task Debit_Computation is
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task Debit_Computation is
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entry Input(Transaction : acc_Transaction_Record);
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entry Input(Transaction : acc_Transaction_Record);
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end Debit_Computation;
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end Debit_Computation;
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-- This protected object is here for Test Control purposes only
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-- This protected object is here for Test Control purposes only
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protected TC_Prt is
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protected TC_Prt is
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procedure Set_First_Has_Arrived;
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procedure Set_First_Has_Arrived;
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procedure Set_Second_Has_Arrived;
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procedure Set_Second_Has_Arrived;
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procedure Set_Abort_Has_Completed;
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procedure Set_Abort_Has_Completed;
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function First_Has_Arrived return Boolean;
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function First_Has_Arrived return Boolean;
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function Second_Has_Arrived return Boolean;
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function Second_Has_Arrived return Boolean;
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function Abort_Has_Completed return Boolean;
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function Abort_Has_Completed return Boolean;
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private
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private
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First_Flag, Second_Flag, Abort_Flag : Boolean := false;
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First_Flag, Second_Flag, Abort_Flag : Boolean := false;
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end TC_Prt;
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end TC_Prt;
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protected body TC_Prt is
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protected body TC_Prt is
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Procedure Set_First_Has_Arrived is
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Procedure Set_First_Has_Arrived is
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begin
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begin
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First_Flag := true;
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First_Flag := true;
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end Set_First_Has_Arrived;
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end Set_First_Has_Arrived;
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Procedure Set_Second_Has_Arrived is
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Procedure Set_Second_Has_Arrived is
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begin
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begin
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Second_Flag := true;
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Second_Flag := true;
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end Set_Second_Has_Arrived;
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end Set_Second_Has_Arrived;
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Procedure Set_Abort_Has_Completed is
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Procedure Set_Abort_Has_Completed is
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begin
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begin
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Abort_Flag := true;
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Abort_Flag := true;
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end Set_Abort_Has_Completed;
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end Set_Abort_Has_Completed;
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Function First_Has_Arrived return boolean is
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Function First_Has_Arrived return boolean is
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begin
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begin
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return First_Flag;
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return First_Flag;
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end First_Has_Arrived;
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end First_Has_Arrived;
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Function Second_Has_Arrived return boolean is
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Function Second_Has_Arrived return boolean is
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begin
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begin
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return Second_Flag;
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return Second_Flag;
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end Second_has_Arrived;
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end Second_has_Arrived;
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Function Abort_Has_Completed return boolean is
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Function Abort_Has_Completed return boolean is
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begin
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begin
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return Abort_Flag;
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return Abort_Flag;
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end Abort_Has_Completed;
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end Abort_Has_Completed;
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end TC_PRT;
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end TC_PRT;
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-- Assemble messages received from an external source
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-- Assemble messages received from an external source
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-- Creates a message task for each. The message tasks remain extant
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-- Creates a message task for each. The message tasks remain extant
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-- for the life of the messages in the system.
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-- for the life of the messages in the system.
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-- TC: The Line Driver task would normally be designed to loop
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-- TC: The Line Driver task would normally be designed to loop
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-- continuously creating the messages as input is received. Simulate
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-- continuously creating the messages as input is received. Simulate
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-- this but limit it to three dummy messages for this test and use
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-- this but limit it to three dummy messages for this test and use
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-- special artificial checks to pace the messages out under controlled
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-- special artificial checks to pace the messages out under controlled
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-- conditions for the test; allow it to terminate at the end
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-- conditions for the test; allow it to terminate at the end
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--
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--
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task body Line_Driver is
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task body Line_Driver is
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Current_ID : integer := 1;
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Current_ID : integer := 1;
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TC_First_message_sent: Boolean := false;
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TC_First_message_sent: Boolean := false;
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procedure Build_Credit_Record
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procedure Build_Credit_Record
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( Next_Transaction : acc_Transaction_Record ) is
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( Next_Transaction : acc_Transaction_Record ) is
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Dummy_Account : constant integer := 100;
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Dummy_Account : constant integer := 100;
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begin
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begin
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Next_Transaction.ID := Current_ID;
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Next_Transaction.ID := Current_ID;
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Next_Transaction.Code := Credit;
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Next_Transaction.Code := Credit;
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Next_Transaction.Account_Number := Dummy_Account;
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Next_Transaction.Account_Number := Dummy_Account;
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Current_ID := Current_ID + 1;
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Current_ID := Current_ID + 1;
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end Build_Credit_Record;
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end Build_Credit_Record;
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procedure Build_Debit_Record
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procedure Build_Debit_Record
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( Next_Transaction : acc_Transaction_Record ) is
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( Next_Transaction : acc_Transaction_Record ) is
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Dummy_Account : constant integer := 200;
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Dummy_Account : constant integer := 200;
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begin
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begin
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Next_Transaction.ID := Current_ID;
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Next_Transaction.ID := Current_ID;
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Next_Transaction.Code := Debit;
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Next_Transaction.Code := Debit;
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Next_Transaction.Account_Number := Dummy_Account;
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Next_Transaction.Account_Number := Dummy_Account;
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Current_ID := Current_ID + 1;
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Current_ID := Current_ID + 1;
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end Build_Debit_Record;
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end Build_Debit_Record;
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begin
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begin
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accept Start; -- Wait for trigger from main
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accept Start; -- Wait for trigger from main
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for i in 1..3 loop -- TC: arbitrarily limit to two credit messages
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for i in 1..3 loop -- TC: arbitrarily limit to two credit messages
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-- and one debit, then complete
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-- and one debit, then complete
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declare
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declare
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-- Create a task for the next message
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-- Create a task for the next message
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Next_Message_Task : acc_Message_Task := new Message_Task;
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Next_Message_Task : acc_Message_Task := new Message_Task;
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-- Create a record for it
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-- Create a record for it
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Next_Transaction : acc_Transaction_Record :=
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Next_Transaction : acc_Transaction_Record :=
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new Transaction_Record;
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new Transaction_Record;
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begin
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begin
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if not TC_First_Message_Sent then
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if not TC_First_Message_Sent then
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-- send out the first message to start up the Credit task
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-- send out the first message to start up the Credit task
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Build_Credit_Record ( Next_Transaction );
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Build_Credit_Record ( Next_Transaction );
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Next_Message_Task.Accept_Transaction ( Next_Transaction );
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Next_Message_Task.Accept_Transaction ( Next_Transaction );
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TC_First_Message_Sent := true;
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TC_First_Message_Sent := true;
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elsif not TC_Prt.Abort_Has_Completed then
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elsif not TC_Prt.Abort_Has_Completed then
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-- We have not yet processed the second message
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-- We have not yet processed the second message
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-- Wait to send the second message until we know the first
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-- Wait to send the second message until we know the first
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-- has arrived at the Credit task and that task is in the
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-- has arrived at the Credit task and that task is in the
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-- accept body
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-- accept body
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while not TC_Prt.First_Has_Arrived loop
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while not TC_Prt.First_Has_Arrived loop
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delay ImpDef.Minimum_Task_Switch;
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delay ImpDef.Minimum_Task_Switch;
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end loop;
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end loop;
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-- We can now send the second message
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-- We can now send the second message
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Build_Credit_Record( Next_Transaction );
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Build_Credit_Record( Next_Transaction );
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Next_Message_Task.Accept_Transaction ( Next_Transaction );
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Next_Message_Task.Accept_Transaction ( Next_Transaction );
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-- Now wait for the second to arrive on the Credit input queue
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-- Now wait for the second to arrive on the Credit input queue
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while not TC_Prt.Second_Has_Arrived loop
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while not TC_Prt.Second_Has_Arrived loop
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delay ImpDef.Minimum_Task_Switch;
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delay ImpDef.Minimum_Task_Switch;
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end loop;
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end loop;
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-- At this point: The Credit task is in the accept block
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-- At this point: The Credit task is in the accept block
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-- dealing with the first message and the second message is
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-- dealing with the first message and the second message is
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-- is on the input queue
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-- is on the input queue
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abort Next_Message_Task.all; -- Note: we are still in the
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abort Next_Message_Task.all; -- Note: we are still in the
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-- declare block for the
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-- declare block for the
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-- second message task
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-- second message task
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-- Make absolutely certain that all the actions
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-- Make absolutely certain that all the actions
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-- associated with the abort have been completed, that the
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-- associated with the abort have been completed, that the
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-- task has gone from Abnormal right through to
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-- task has gone from Abnormal right through to
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-- Termination. All requeues that are to going to be
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-- Termination. All requeues that are to going to be
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-- cancelled will have been by the point of Termination.
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-- cancelled will have been by the point of Termination.
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while not Next_Message_Task.all'terminated loop
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while not Next_Message_Task.all'terminated loop
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delay ImpDef.Minimum_Task_Switch;
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delay ImpDef.Minimum_Task_Switch;
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end loop;
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end loop;
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-- We now signal the Credit task that the abort has taken place
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-- We now signal the Credit task that the abort has taken place
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-- so that it can check that the entry queue is empty as the
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-- so that it can check that the entry queue is empty as the
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-- requeue should have been cancelled
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-- requeue should have been cancelled
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TC_Prt.Set_Abort_Has_Completed;
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TC_Prt.Set_Abort_Has_Completed;
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else
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else
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-- The main part of the test is complete. Send one Debit message
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-- The main part of the test is complete. Send one Debit message
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-- as further exercise of the Distributor to ensure it has not
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-- as further exercise of the Distributor to ensure it has not
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-- been affected by the cancellation of the requeue.
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-- been affected by the cancellation of the requeue.
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Build_Debit_Record ( Next_Transaction );
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Build_Debit_Record ( Next_Transaction );
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Next_Message_Task.Accept_Transaction ( Next_Transaction );
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Next_Message_Task.Accept_Transaction ( Next_Transaction );
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end if;
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end if;
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end; -- declare
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end; -- declare
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end loop;
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end loop;
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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 ("Unexpected exception in Line_Driver");
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Report.Failed ("Unexpected exception in Line_Driver");
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end Line_Driver;
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end Line_Driver;
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task body Message_Task is
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task body Message_Task is
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|
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TC_Original_Transaction_Code : Transaction_Code;
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TC_Original_Transaction_Code : Transaction_Code;
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This_Transaction : acc_Transaction_Record := new Transaction_Record;
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This_Transaction : acc_Transaction_Record := new Transaction_Record;
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|
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begin
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begin
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|
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accept Accept_Transaction (In_Transaction : acc_Transaction_Record) do
|
accept Accept_Transaction (In_Transaction : acc_Transaction_Record) do
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This_Transaction.all := In_Transaction.all;
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This_Transaction.all := In_Transaction.all;
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end Accept_Transaction;
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end Accept_Transaction;
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-- Note the original code to ensure correct return
|
-- Note the original code to ensure correct return
|
TC_Original_Transaction_Code := This_Transaction.Code;
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TC_Original_Transaction_Code := This_Transaction.Code;
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|
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-- Queue up on Distributor's Input queue
|
-- Queue up on Distributor's Input queue
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Distributor.Input ( This_Transaction );
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Distributor.Input ( This_Transaction );
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-- This task will now wait for the requeued rendezvous
|
-- This task will now wait for the requeued rendezvous
|
-- to complete before proceeding
|
-- to complete before proceeding
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|
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-- After the required computations have been performed
|
-- After the required computations have been performed
|
-- return the Transaction_Record appropriately (probably to an output
|
-- return the Transaction_Record appropriately (probably to an output
|
-- line driver)
|
-- line driver)
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null; -- stub
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null; -- stub
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|
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-- For the test check that the return values are as expected
|
-- For the test check that the return values are as expected
|
if TC_Original_Transaction_Code /= This_Transaction.Code then
|
if TC_Original_Transaction_Code /= This_Transaction.Code then
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-- Incorrect rendezvous
|
-- Incorrect rendezvous
|
Report.Failed ("Message Task: Incorrect code returned");
|
Report.Failed ("Message Task: Incorrect code returned");
|
end if;
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end if;
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|
|
if This_Transaction.Code = Credit then
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if This_Transaction.Code = Credit then
|
if This_Transaction.Return_Value /= Credit_Return or
|
if This_Transaction.Return_Value /= Credit_Return or
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This_Transaction.TC_Message_Count /= 1 or not
|
This_Transaction.TC_Message_Count /= 1 or not
|
This_Transaction.TC_Thru_Dist then
|
This_Transaction.TC_Thru_Dist then
|
Report.Failed ("Expected path not traversed");
|
Report.Failed ("Expected path not traversed");
|
end if;
|
end if;
|
TC_Credit_Message_Complete.Set_True;
|
TC_Credit_Message_Complete.Set_True;
|
else
|
else
|
if This_Transaction.Return_Value /= Debit_Return or
|
if This_Transaction.Return_Value /= Debit_Return or
|
This_Transaction.TC_Message_Count /= 1 or not
|
This_Transaction.TC_Message_Count /= 1 or not
|
This_Transaction.TC_Thru_Dist then
|
This_Transaction.TC_Thru_Dist then
|
Report.Failed ("Expected path not traversed");
|
Report.Failed ("Expected path not traversed");
|
end if;
|
end if;
|
TC_Debit_Message_Complete.Set_True;
|
TC_Debit_Message_Complete.Set_True;
|
end if;
|
end if;
|
|
|
exception
|
exception
|
when others =>
|
when others =>
|
Report.Failed ("Unexpected exception in Message_Task");
|
Report.Failed ("Unexpected exception in Message_Task");
|
|
|
end Message_Task;
|
end Message_Task;
|
|
|
|
|
|
|
-- Dispose each input Transaction_Record to the appropriate
|
-- Dispose each input Transaction_Record to the appropriate
|
-- computation tasks
|
-- computation tasks
|
--
|
--
|
task body Distributor is
|
task body Distributor is
|
|
|
begin
|
begin
|
loop
|
loop
|
select
|
select
|
accept Input (Transaction : acc_Transaction_Record) do
|
accept Input (Transaction : acc_Transaction_Record) do
|
-- Show that this message did pass through the Distributor Task
|
-- Show that this message did pass through the Distributor Task
|
Transaction.TC_Thru_Dist := true;
|
Transaction.TC_Thru_Dist := true;
|
|
|
-- Pass this transaction on the the appropriate computation
|
-- Pass this transaction on the the appropriate computation
|
-- task
|
-- task
|
case Transaction.Code is
|
case Transaction.Code is
|
when Credit =>
|
when Credit =>
|
requeue Credit_Computation.Input with abort;
|
requeue Credit_Computation.Input with abort;
|
when Debit =>
|
when Debit =>
|
requeue Debit_Computation.Input with abort;
|
requeue Debit_Computation.Input with abort;
|
end case;
|
end case;
|
end Input;
|
end Input;
|
or
|
or
|
terminate;
|
terminate;
|
end select;
|
end select;
|
end loop;
|
end loop;
|
|
|
exception
|
exception
|
when others =>
|
when others =>
|
Report.Failed ("Unexpected exception in Distributor");
|
Report.Failed ("Unexpected exception in Distributor");
|
end Distributor;
|
end Distributor;
|
|
|
|
|
|
|
-- Computation task.
|
-- Computation task.
|
-- Note: After the computation is performed in this task and the
|
-- Note: After the computation is performed in this task and the
|
-- accept body is completed the rendezvous in the original
|
-- accept body is completed the rendezvous in the original
|
-- message task is completed.
|
-- message task is completed.
|
task body Credit_Computation is
|
task body Credit_Computation is
|
Message_Count : integer := 0;
|
Message_Count : integer := 0;
|
begin
|
begin
|
loop
|
loop
|
select
|
select
|
accept Input ( Transaction : acc_Transaction_Record) do
|
accept Input ( Transaction : acc_Transaction_Record) do
|
-- Perform the computations required for this transaction
|
-- Perform the computations required for this transaction
|
--
|
--
|
null; -- stub
|
null; -- stub
|
|
|
-- The rest of this code is for Test Control
|
-- The rest of this code is for Test Control
|
--
|
--
|
if not Transaction.TC_Thru_Dist then
|
if not Transaction.TC_Thru_Dist then
|
Report.Failed
|
Report.Failed
|
("Credit Task: Wrong queue, Distributor bypassed");
|
("Credit Task: Wrong queue, Distributor bypassed");
|
end if;
|
end if;
|
if Transaction.code /= Credit then
|
if Transaction.code /= Credit then
|
Report.Failed
|
Report.Failed
|
("Credit Task: Requeue delivered to the wrong queue");
|
("Credit Task: Requeue delivered to the wrong queue");
|
end if;
|
end if;
|
|
|
-- for the test plug a known value and count
|
-- for the test plug a known value and count
|
Transaction.Return_Value := Credit_Return;
|
Transaction.Return_Value := Credit_Return;
|
-- one, and only one message should pass through
|
-- one, and only one message should pass through
|
if Message_Count /= 0 then
|
if Message_Count /= 0 then
|
Report.Failed ("Aborted Requeue was not cancelled -1");
|
Report.Failed ("Aborted Requeue was not cancelled -1");
|
end if;
|
end if;
|
Message_Count := Message_Count + 1;
|
Message_Count := Message_Count + 1;
|
Transaction.TC_Message_Count := Message_Count;
|
Transaction.TC_Message_Count := Message_Count;
|
|
|
|
|
-- Having done the basic housekeeping we now need to signal
|
-- Having done the basic housekeeping we now need to signal
|
-- that we are in the accept body of the credit task. The
|
-- that we are in the accept body of the credit task. The
|
-- first message has arrived and the Line Driver may now send
|
-- first message has arrived and the Line Driver may now send
|
-- the second one
|
-- the second one
|
TC_Prt.Set_First_Has_Arrived;
|
TC_Prt.Set_First_Has_Arrived;
|
|
|
-- Now wait for the second to arrive
|
-- Now wait for the second to arrive
|
|
|
while Input'Count = 0 loop
|
while Input'Count = 0 loop
|
delay ImpDef.Minimum_Task_Switch;
|
delay ImpDef.Minimum_Task_Switch;
|
end loop;
|
end loop;
|
-- Second message has been requeued - the Line driver may
|
-- Second message has been requeued - the Line driver may
|
-- now abort the calling task
|
-- now abort the calling task
|
TC_Prt.Set_Second_Has_Arrived;
|
TC_Prt.Set_Second_Has_Arrived;
|
|
|
-- Now wait for the Line Driver to signal that the abort of
|
-- Now wait for the Line Driver to signal that the abort of
|
-- the first task is complete - the requeue should be cancelled
|
-- the first task is complete - the requeue should be cancelled
|
-- at this time
|
-- at this time
|
while not TC_Prt.Abort_Has_Completed loop
|
while not TC_Prt.Abort_Has_Completed loop
|
delay ImpDef.Minimum_Task_Switch;
|
delay ImpDef.Minimum_Task_Switch;
|
end loop;
|
end loop;
|
|
|
if Input'Count /=0 then
|
if Input'Count /=0 then
|
Report.Failed ("Aborted Requeue was not cancelled -2");
|
Report.Failed ("Aborted Requeue was not cancelled -2");
|
end if;
|
end if;
|
-- We can now complete the rendezvous with the first caller
|
-- We can now complete the rendezvous with the first caller
|
end Input;
|
end Input;
|
or
|
or
|
terminate;
|
terminate;
|
end select;
|
end select;
|
end loop;
|
end loop;
|
exception
|
exception
|
when others =>
|
when others =>
|
Report.Failed ("Unexpected exception in Credit_Computation");
|
Report.Failed ("Unexpected exception in Credit_Computation");
|
end Credit_Computation;
|
end Credit_Computation;
|
|
|
|
|
|
|
-- Computation task.
|
-- Computation task.
|
-- Note: After the computation is performed in this task and the
|
-- Note: After the computation is performed in this task and the
|
-- accept body is completed the rendezvous in the original
|
-- accept body is completed the rendezvous in the original
|
-- message task is completed.
|
-- message task is completed.
|
task body Debit_Computation is
|
task body Debit_Computation is
|
Message_Count : integer := 0;
|
Message_Count : integer := 0;
|
begin
|
begin
|
loop
|
loop
|
select
|
select
|
accept Input (Transaction : acc_Transaction_Record) do
|
accept Input (Transaction : acc_Transaction_Record) do
|
-- Perform the computations required for this message
|
-- Perform the computations required for this message
|
--
|
--
|
null; -- stub
|
null; -- stub
|
|
|
-- The rest of this code is for Test Control
|
-- The rest of this code is for Test Control
|
--
|
--
|
if not Transaction.TC_Thru_Dist then
|
if not Transaction.TC_Thru_Dist then
|
Report.Failed
|
Report.Failed
|
("Debit Task: Wrong queue, Distributor bypassed");
|
("Debit Task: Wrong queue, Distributor bypassed");
|
end if;
|
end if;
|
if Transaction.code /= Debit then
|
if Transaction.code /= Debit then
|
Report.Failed
|
Report.Failed
|
("Debit Task: Requeue delivered to the wrong queue");
|
("Debit Task: Requeue delivered to the wrong queue");
|
end if;
|
end if;
|
|
|
-- for the test plug a known value and count
|
-- for the test plug a known value and count
|
Transaction.Return_Value := Debit_Return;
|
Transaction.Return_Value := Debit_Return;
|
-- one, and only one, message should pass through
|
-- one, and only one, message should pass through
|
Message_Count := Message_Count + 1;
|
Message_Count := Message_Count + 1;
|
Transaction.TC_Message_Count := Message_Count;
|
Transaction.TC_Message_Count := Message_Count;
|
end Input;
|
end Input;
|
or
|
or
|
terminate;
|
terminate;
|
end select;
|
end select;
|
end loop;
|
end loop;
|
exception
|
exception
|
when others =>
|
when others =>
|
Report.Failed ("Unexpected exception in Debit_Computation");
|
Report.Failed ("Unexpected exception in Debit_Computation");
|
|
|
|
|
end Debit_Computation;
|
end Debit_Computation;
|
|
|
|
|
begin -- c954013
|
begin -- c954013
|
|
|
Report.Test ("C954013", "Abort a task that has a call requeued");
|
Report.Test ("C954013", "Abort a task that has a call requeued");
|
|
|
Line_Driver.Start; -- start the test
|
Line_Driver.Start; -- start the test
|
|
|
-- Wait for the message tasks to complete before calling Report.Result.
|
-- Wait for the message tasks to complete before calling Report.Result.
|
-- Although two Credit tasks are generated one is aborted so only
|
-- Although two Credit tasks are generated one is aborted so only
|
-- one completes, thus a single flag is sufficient
|
-- one completes, thus a single flag is sufficient
|
-- Note: the test will hang here if there is a problem with the
|
-- Note: the test will hang here if there is a problem with the
|
-- completion of the tasks
|
-- completion of the tasks
|
while not (TC_Credit_Message_Complete.Value and
|
while not (TC_Credit_Message_Complete.Value and
|
TC_Debit_Message_Complete.Value) loop
|
TC_Debit_Message_Complete.Value) loop
|
delay ImpDef.Minimum_Task_Switch;
|
delay ImpDef.Minimum_Task_Switch;
|
end loop;
|
end loop;
|
|
|
Report.Result;
|
Report.Result;
|
|
|
end C954013;
|
end C954013;
|
|
|
