From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/ada/acats/tests/c9/c974004.a | 273 +++++++++++++++++++++++++++++ 1 file changed, 273 insertions(+) create mode 100644 gcc/testsuite/ada/acats/tests/c9/c974004.a (limited to 'gcc/testsuite/ada/acats/tests/c9/c974004.a') diff --git a/gcc/testsuite/ada/acats/tests/c9/c974004.a b/gcc/testsuite/ada/acats/tests/c9/c974004.a new file mode 100644 index 000000000..b1200c103 --- /dev/null +++ b/gcc/testsuite/ada/acats/tests/c9/c974004.a @@ -0,0 +1,273 @@ +-- C974004.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 aborted if it does not complete before the triggering statement +-- completes, where the triggering statement is a task entry call, +-- the entry call is queued, and the entry call completes by propagating +-- an exception and that the sequence of statements of the triggering +-- alternative is not executed after the abortable part is left and that +-- the exception propagated by the entry call is re-raised immediately +-- following the asynchronous select. +-- +-- TEST DESCRIPTION: +-- Declare a main procedure containing an asynchronous select with a task +-- entry call as triggering statement. Force the entry call to be +-- queued by having the task call a procedure, prior to the corresponding +-- accept statement, which simulates a routine waiting for user input +-- (with a delay). +-- +-- Simulate a time-consuming routine in the abortable part by calling a +-- procedure containing an infinite loop. Meanwhile, simulate input by +-- the user (the delay expires), which causes the task to execute the +-- accept statement corresponding to the triggering entry call. Raise +-- an exception in the accept statement which is not handled by the task, +-- and which is thus propagated to the caller. +-- +-- +-- CHANGE HISTORY: +-- 06 Dec 94 SAIC ACVC 2.0 +-- +--! + +package C974004_0 is -- Automated teller machine abstraction. + + + -- Flags for testing purposes: + + Count : Integer := 1234; -- Global to defeat + -- optimization. + Propagated_From_Task : exception; + + + 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 Validate_Card (Card : in 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 C974004_0; + + + --==================================================================-- + + +with Report; +with ImpDef; + +package body C974004_0 is + + + procedure Listen_For_Input (Key : out Key_Enum) is + begin + -- Simulate the situation where a user waits a bit for the card to + -- be validated, then presses cancel before it completes. + + -- Delay long enough to force queuing of Keyboard.Cancel_Pressed. + delay ImpDef.Clear_Ready_Queue; + + if Report.Equal (3, 3) then -- Always true. + Key := Cancel; + end if; + 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 + loop + -- Force entry calls to be + Listen_For_Input (Key_Pressed); -- queued, then set guard to + -- true. + select + when (Key_Pressed = Cancel) => -- Guard is now true, so accept + accept Cancel_Pressed do -- queued entry call. + null; --:::: user code for cancel + -- Now simulate an unexpected exception arising in the + -- user code + raise Propagated_From_Task; -- Propagate an exception. + + end Cancel_Pressed; + + Report.Failed + ("Exception not propagated in ATM_Keyboard_Task"); + + -- User has canceled the transaction so we exit the + -- loop and allow the task to terminate + exit; + else + Key_Pressed := None; + end select; + end loop; + exception + when Propagated_From_Task => + null; -- This is the expected test behavior + 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 Validate_Card (Card : in ATM_Card_Type) is + begin + -- Simulate an exceedingly long validation activity. + loop -- Infinite loop. + Count := (Count + 1) mod Integer (Card.PIN); + -- Synch. point to allow transfer of control to Keyboard + -- task during this simulation + delay ImpDef.Minimum_Task_Switch; + exit when not Report.Equal (Count, Count); -- Always false. + end loop; + end Validate_Card; + + + procedure Perform_Transaction (Card : in ATM_Card_Type) is + begin + Report.Failed ("Exception not re-raised immediately following " & + "asynchronous select"); + if Count = 1234 then + -- Initial value is unchanged + Report.Failed ("Abortable part did not execute"); + end if; + end Perform_Transaction; + + +end C974004_0; + + + --==================================================================-- + + +with Report; + +with C974004_0; -- Automated teller machine abstraction. +use C974004_0; + +procedure C974004 is + + Card_Data : ATM_Card_Type; + +begin -- Main program. + + Report.Test ("C974004", "Asynchronous Select: Trigger is queued on a " & + "task entry and is completed first by an " & + "exception"); + + Read_Card (Card_Data); + + begin + + declare + -- Create the task for this transaction + Keyboard : C974004_0.ATM_Keyboard_Task; + begin + + -- -- + -- Asynchronous select is tested here -- + -- -- + + select + Keyboard.Cancel_Pressed; -- Entry call initially queued, so + -- abortable part starts. + + raise Transaction_Canceled; -- Should not be executed. + then abort + Validate_Card (Card_Data); -- Keyboard.Cancel_Pressed is accepted + -- and propagates an exception before + -- this call finishes; it is then + -- aborted. + + -- Check that the whole of the abortable part is aborted, not + -- just the statement in the abortable part that was executing + -- at the time + Report.Failed ("Abortable part not aborted"); + end select; + -- The propagated exception is + -- re-raised here; control passes to + -- the exception handler. + + Perform_Transaction(Card_Data); -- Should not be reached. + exception + when Transaction_Canceled => + Report.Failed ("Triggering alternative sequence of statements " & + "executed"); + when Propagated_From_Task => + -- This is the expected test path + if Count = 1234 then + -- Initial value is unchanged + Report.Failed ("Abortable part did not execute"); + end if; + when Tasking_Error => + Report.Failed ("Tasking_Error raised"); + when others => + Report.Failed ("Wrong exception raised"); + end; + + exception + when Propagated_From_Task => + Report.Failed ("Correct exception raised at wrong level"); + when others => + Report.Failed ("Wrong exception raised at wrong level"); + end; + + Report.Result; + +end C974004; -- cgit v1.2.3