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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [ada/] [acats/] [tests/] [c9/] [c974006.a] - Blame information for rev 154

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1 149 jeremybenn
-- C974006.A
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--
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--                             Grant of Unlimited Rights
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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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--     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 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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--     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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--     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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--     to do so.
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--
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--                                    DISCLAIMER
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--
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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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--     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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--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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--     PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--
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-- OBJECTIVE:
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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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--      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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--      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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--
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-- TEST DESCRIPTION:
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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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--      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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--      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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--      entry call completes, the sequence of statements of the triggering
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--      alternative should execute.
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--
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--
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-- CHANGE HISTORY:
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--      06 Dec 94   SAIC    ACVC 2.0
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--
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--!
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package C974006_0 is  -- Automated teller machine abstraction.
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   -- Flag for testing purposes:
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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 Card_Number_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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   Transaction_Canceled : exception;
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   protected type ATM_Keyboard_Protected is
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      entry Cancel_Pressed;
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      procedure Read_Key;
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   private
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      Last_Key_Pressed : Key_Enum := None;
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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 Validate_Card (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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   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 ATM_Card_Type is record
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      Number : Card_Number_Type;
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      PIN    : Card_PIN_Type;
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   end record;
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end C974006_0;
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     --==================================================================--
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with Report;
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package body C974006_0 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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      begin
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         Entry_Body_Executed := True;
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      end Cancel_Pressed;
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      procedure Read_Key is
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      begin
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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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         Last_Key_Pressed := Cancel;
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      end Read_Key;
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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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   begin
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      Card.Number := 9999;
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      Card.PIN    := 111;
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   end Read_Card;
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   procedure Validate_Card (Card : in ATM_Card_Type) is
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   begin
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      Report.Failed ("Abortable part executed");
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   end Validate_Card;
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   procedure Perform_Transaction (Card : in ATM_Card_Type) is
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   begin
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      Report.Failed ("Triggering alternative sequence of statements " &
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                      "not fully executed");
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   end Perform_Transaction;
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end C974006_0;
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     --==================================================================--
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with Report;
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with C974006_0;  -- Automated teller machine abstraction.
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use  C974006_0;
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procedure C974006 is
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   Card_Data : ATM_Card_Type;
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begin
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   Report.Test ("C974006", "ATC: trigger is protected entry call" &
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                              " and completes first");
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   Read_Card (Card_Data);
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   declare
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      Keyboard : C974006_0.ATM_Keyboard_Protected;
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   begin
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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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      Keyboard.Read_Key;                 -- Force Keyboard.Cancel_Pressed to
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                                         -- be accepted immediately.
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      --                                    --
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      -- Asynchronous select is tested here --
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      --                                    --
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      select
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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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         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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                           "executed before triggering statement complete");
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         end if;
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         raise Transaction_Canceled;     -- Control passes to exception
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                                         -- handler.
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      then abort
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         Validate_Card (Card_Data);      -- Should not be executed.
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      end select;
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      Perform_Transaction (Card_Data);   -- Should not be reached.
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   exception
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      when Transaction_Canceled =>
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         null;
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   end;
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   Report.Result;
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end C974006;

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