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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/ada/acats/tests/c9/c974008.a
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+-- C974008.A
+--
+-- Grant of Unlimited Rights
+--
+-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
+-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
+-- unlimited rights in the software and documentation contained herein.
+-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
+-- this public release, the Government intends to confer upon all
+-- recipients unlimited rights equal to those held by the Government.
+-- These rights include rights to use, duplicate, release or disclose the
+-- released technical data and computer software in whole or in part, in
+-- any manner and for any purpose whatsoever, and to have or permit others
+-- to do so.
+--
+-- DISCLAIMER
+--
+-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
+-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
+-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
+-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
+-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
+-- PARTICULAR PURPOSE OF SAID MATERIAL.
+--*
+--
+-- OBJECTIVE:
+-- Check that the abortable part of an asynchronous select statement
+-- is not started if the triggering statement is a task entry call, and
+-- the entry call is not queued.
+--
+-- Check that the sequence of statements of the triggering alternative
+-- is executed after the abortable part is left.
+--
+-- TEST DESCRIPTION:
+-- Declare a main procedure containing an asynchronous select with a task
+-- entry call as triggering statement. Ensure that the task is waiting
+-- at the accept statement so the rendezvous is executed immediately (the
+-- entry call is not queued).
+--
+--
+-- CHANGE HISTORY:
+-- 06 Dec 94 SAIC ACVC 2.0
+--
+--!
+
+package C974008_0 is -- Automated teller machine abstraction.
+
+
+ -- Flags for testing purposes:
+
+ Triggering_Statement_Completed : Boolean := False;
+ Count : Integer := 1234; -- Global to defeat
+ -- optimization.
+
+ type Key_Enum is (None, Cancel, Deposit, Withdraw);
+
+ type Card_Number_Type is private;
+ type Card_PIN_Type is private;
+ type ATM_Card_Type is private;
+
+
+ Transaction_Canceled : exception;
+
+
+ task type ATM_Keyboard_Task is
+ entry Cancel_Pressed;
+ end ATM_Keyboard_Task;
+
+
+ procedure Read_Card (Card : in out ATM_Card_Type);
+
+
+ procedure Perform_Transaction (Card : in ATM_Card_Type);
+
+private
+
+ type Card_Number_Type is range 1 .. 9999;
+ type Card_PIN_Type is range 100 .. 999;
+
+ type ATM_Card_Type is record
+ Number : Card_Number_Type;
+ PIN : Card_PIN_Type;
+ end record;
+
+end C974008_0;
+
+
+ --==================================================================--
+
+
+with Report;
+package body C974008_0 is
+
+
+ procedure Listen_For_Input (Key : out Key_Enum) is
+ begin
+ -- Simulate the situation where the user presses the cancel key
+ -- before the card is validated
+
+ -- press the cancel key immediately
+ Key := Cancel;
+
+ end Listen_For_Input;
+
+
+
+ -- One of these gets created as "Keyboard" for each transaction
+ --
+ task body ATM_Keyboard_Task is
+ Key_Pressed : Key_Enum := None;
+ begin
+ -- NOTE: Normal usage for this routine would be the loop with
+ -- the select statement included. This particular test
+ -- requires that the task be waiting at the accept
+ -- for the call. To ensure that this is the case the
+ -- extraneous commands are commented out (we leave them
+ -- in this form to show the reader the surrounds to the
+ -- fragment of code remaining)
+
+ -- loop
+
+ Listen_For_Input (Key_Pressed);
+
+ -- select
+ -- when (Key_Pressed = Cancel) => -- Guard is now
+ accept Cancel_Pressed do -- true, so accept
+ Triggering_Statement_Completed := True; -- queued entry
+ end Cancel_Pressed; -- call.
+
+ -- User has cancelled the transaction so we exit the
+ -- loop and allow the task to terminate
+ -- exit;
+ -- else
+ -- Key_Pressed := None;
+ -- end select;
+
+ -- end loop;
+ exception
+ when others =>
+ Report.Failed ("Unexpected Exception in ATM_Keyboard_Task");
+ end ATM_Keyboard_Task;
+
+
+
+ procedure Read_Card (Card : in out ATM_Card_Type) is
+ begin
+ Card.Number := 9999;
+ Card.PIN := 111;
+ end Read_Card;
+
+
+ procedure Perform_Transaction (Card : in ATM_Card_Type) is
+ begin
+ Report.Failed ("Triggering alternative sequence of statements " &
+ "not executed");
+ if not Triggering_Statement_Completed then
+ Report.Failed ("Triggering statement did not complete");
+ end if;
+ end Perform_Transaction;
+
+
+end C974008_0;
+
+
+ --==================================================================--
+
+
+with Report;
+with ImpDef;
+
+with C974008_0; -- Automated teller machine abstraction.
+use C974008_0;
+
+procedure C974008 is
+
+ Card_Data : ATM_Card_Type;
+
+begin -- Main program.
+
+ Report.Test ("C974008", "Asynchronous Select: Trigger is a call to a " &
+ "waiting task entry and completes immediately");
+
+ Read_Card (Card_Data);
+
+ declare
+ -- Create the task for this transaction
+ Keyboard : C974008_0.ATM_Keyboard_Task;
+ begin
+
+ -- Ensure task is waiting at the accept
+ -- This is the time required to activate another task and allow it
+ -- to run to its first accept statement.
+ --
+ delay ImpDef.Switch_To_New_Task;
+
+ -- --
+ -- Asynchronous select is tested here --
+ -- --
+
+ select
+ Keyboard.Cancel_Pressed; -- Entry call is executed immediately
+
+ raise Transaction_Canceled; -- This is executed after Validate_Card
+ -- is aborted.
+ then abort
+
+ -- In other similar tests Validate_Card is called here. In this
+ -- test we just check to see if the abortable part is called at
+ -- all. Since the triggering call is not queued the abortable
+ -- part should not be started
+ --
+ Report.Failed ("Abortable part started");
+
+ end select;
+
+ Perform_Transaction (Card_Data); -- Should not be reached.
+ exception
+ when Transaction_Canceled =>
+
+ if not Triggering_Statement_Completed then
+ Report.Failed ("Triggering alternative sequence of statements " &
+ "executed but triggering statement not complete");
+ end if;
+
+ end;
+
+ Report.Result;
+
+end C974008;