-- C974006.A
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-- C974006.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 sequence of statements of the triggering alternative
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-- Check that the sequence of statements of the triggering alternative
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-- of an asynchronous select statement is executed if the triggering
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-- of an asynchronous select statement is executed if the triggering
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-- statement is a protected entry call, and the entry is accepted
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-- statement is a protected entry call, and the entry is accepted
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-- immediately. Check that the corresponding entry body is executed
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-- immediately. Check that the corresponding entry body is executed
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-- before the sequence of statements of the triggering alternative.
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-- before the sequence of statements of the triggering alternative.
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-- Check that the abortable part is not executed.
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-- Check that the abortable part is not executed.
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--
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--
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-- TEST DESCRIPTION:
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-- TEST DESCRIPTION:
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-- Declare a main procedure containing an asynchronous select with a
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-- Declare a main procedure containing an asynchronous select with a
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-- protected entry call as triggering statement. Declare a protected
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-- protected entry call as triggering statement. Declare a protected
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-- procedure which sets the protected entry's barrier true. Force the
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-- procedure which sets the protected entry's barrier true. Force the
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-- entry call to be accepted immediately by calling this protected
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-- entry call to be accepted immediately by calling this protected
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-- procedure prior to the asynchronous select. Since the entry call
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-- procedure prior to the asynchronous select. Since the entry call
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-- is accepted immediately, the abortable part should never start. When
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-- is accepted immediately, the abortable part should never start. When
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-- entry call completes, the sequence of statements of the triggering
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-- entry call completes, the sequence of statements of the triggering
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-- alternative should execute.
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-- alternative should execute.
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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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--
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--
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--!
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--!
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package C974006_0 is -- Automated teller machine abstraction.
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package C974006_0 is -- Automated teller machine abstraction.
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-- Flag for testing purposes:
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-- Flag for testing purposes:
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Entry_Body_Executed : Boolean := False;
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Entry_Body_Executed : Boolean := False;
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type Key_Enum is (None, Cancel, Deposit, Withdraw);
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type Key_Enum is (None, Cancel, Deposit, Withdraw);
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type Card_Number_Type is private;
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type Card_Number_Type is private;
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type Card_PIN_Type is private;
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type Card_PIN_Type is private;
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type ATM_Card_Type is private;
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type ATM_Card_Type is private;
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Transaction_Canceled : exception;
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Transaction_Canceled : exception;
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protected type ATM_Keyboard_Protected is
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protected type ATM_Keyboard_Protected is
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entry Cancel_Pressed;
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entry Cancel_Pressed;
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procedure Read_Key;
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procedure Read_Key;
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private
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private
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Last_Key_Pressed : Key_Enum := None;
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Last_Key_Pressed : Key_Enum := None;
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end ATM_Keyboard_Protected;
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end ATM_Keyboard_Protected;
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procedure Read_Card (Card : in out ATM_Card_Type);
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procedure Read_Card (Card : in out ATM_Card_Type);
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procedure Validate_Card (Card : in ATM_Card_Type);
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procedure Validate_Card (Card : in ATM_Card_Type);
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procedure Perform_Transaction (Card : in ATM_Card_Type);
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procedure Perform_Transaction (Card : in ATM_Card_Type);
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private
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private
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type Card_Number_Type is range 1 .. 9999;
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type Card_Number_Type is range 1 .. 9999;
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type Card_PIN_Type is range 100 .. 999;
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type Card_PIN_Type is range 100 .. 999;
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type ATM_Card_Type is record
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type ATM_Card_Type is record
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Number : Card_Number_Type;
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Number : Card_Number_Type;
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PIN : Card_PIN_Type;
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PIN : Card_PIN_Type;
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end record;
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end record;
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end C974006_0;
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end C974006_0;
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--==================================================================--
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--==================================================================--
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with Report;
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with Report;
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package body C974006_0 is
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package body C974006_0 is
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protected body ATM_Keyboard_Protected is
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protected body ATM_Keyboard_Protected is
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entry Cancel_Pressed when (Last_Key_Pressed = Cancel) is
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entry Cancel_Pressed when (Last_Key_Pressed = Cancel) is
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begin
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begin
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Entry_Body_Executed := True;
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Entry_Body_Executed := True;
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end Cancel_Pressed;
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end Cancel_Pressed;
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procedure Read_Key is
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procedure Read_Key is
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begin
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begin
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-- Simulate a procedure which processes user keyboard input, and
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-- Simulate a procedure which processes user keyboard input, and
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-- which is called by some interrupt handler.
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-- which is called by some interrupt handler.
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Last_Key_Pressed := Cancel;
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Last_Key_Pressed := Cancel;
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end Read_Key;
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end Read_Key;
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end ATM_Keyboard_Protected;
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end ATM_Keyboard_Protected;
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procedure Read_Card (Card : in out ATM_Card_Type) is
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procedure Read_Card (Card : in out ATM_Card_Type) is
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begin
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begin
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Card.Number := 9999;
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Card.Number := 9999;
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Card.PIN := 111;
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Card.PIN := 111;
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end Read_Card;
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end Read_Card;
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procedure Validate_Card (Card : in ATM_Card_Type) is
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procedure Validate_Card (Card : in ATM_Card_Type) is
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begin
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begin
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Report.Failed ("Abortable part executed");
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Report.Failed ("Abortable part executed");
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end Validate_Card;
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end Validate_Card;
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procedure Perform_Transaction (Card : in ATM_Card_Type) is
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procedure Perform_Transaction (Card : in ATM_Card_Type) is
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begin
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begin
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Report.Failed ("Triggering alternative sequence of statements " &
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Report.Failed ("Triggering alternative sequence of statements " &
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"not fully executed");
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"not fully executed");
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end Perform_Transaction;
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end Perform_Transaction;
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end C974006_0;
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end C974006_0;
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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 C974006_0; -- Automated teller machine abstraction.
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with C974006_0; -- Automated teller machine abstraction.
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use C974006_0;
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use C974006_0;
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procedure C974006 is
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procedure C974006 is
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Card_Data : ATM_Card_Type;
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Card_Data : ATM_Card_Type;
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begin
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begin
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Report.Test ("C974006", "ATC: trigger is protected entry call" &
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Report.Test ("C974006", "ATC: trigger is protected entry call" &
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" and completes first");
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" and completes first");
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Read_Card (Card_Data);
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Read_Card (Card_Data);
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declare
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declare
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Keyboard : C974006_0.ATM_Keyboard_Protected;
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Keyboard : C974006_0.ATM_Keyboard_Protected;
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begin
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begin
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-- Simulate the situation where the user hits cancel before the
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-- Simulate the situation where the user hits cancel before the
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-- validation process can start:
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-- validation process can start:
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Keyboard.Read_Key; -- Force Keyboard.Cancel_Pressed to
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Keyboard.Read_Key; -- Force Keyboard.Cancel_Pressed to
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-- be accepted immediately.
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-- be accepted immediately.
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-- --
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-- --
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-- Asynchronous select is tested here --
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-- Asynchronous select is tested here --
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-- --
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-- --
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select
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select
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Keyboard.Cancel_Pressed; -- Entry call is accepted immediately,
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Keyboard.Cancel_Pressed; -- Entry call is accepted immediately,
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-- so abortable part does NOT start.
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-- so abortable part does NOT start.
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if not Entry_Body_Executed then -- Executes after entry completes.
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if not Entry_Body_Executed then -- Executes after entry completes.
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Report.Failed ("Triggering alternative sequence of statements " &
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Report.Failed ("Triggering alternative sequence of statements " &
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"executed before triggering statement complete");
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"executed before triggering statement complete");
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end if;
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end if;
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raise Transaction_Canceled; -- Control passes to exception
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raise Transaction_Canceled; -- Control passes to exception
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-- handler.
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-- handler.
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then abort
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then abort
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Validate_Card (Card_Data); -- Should not be executed.
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Validate_Card (Card_Data); -- Should not be executed.
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end select;
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end select;
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Perform_Transaction (Card_Data); -- Should not be reached.
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Perform_Transaction (Card_Data); -- Should not be reached.
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exception
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exception
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when Transaction_Canceled =>
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when Transaction_Canceled =>
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null;
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null;
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end;
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end;
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Report.Result;
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Report.Result;
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end C974006;
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end C974006;
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