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/c954015.a | 549 +++++++++++++++++++++++++++++ 1 file changed, 549 insertions(+) create mode 100644 gcc/testsuite/ada/acats/tests/c9/c954015.a (limited to 'gcc/testsuite/ada/acats/tests/c9/c954015.a') diff --git a/gcc/testsuite/ada/acats/tests/c9/c954015.a b/gcc/testsuite/ada/acats/tests/c9/c954015.a new file mode 100644 index 000000000..c86e1078e --- /dev/null +++ b/gcc/testsuite/ada/acats/tests/c9/c954015.a @@ -0,0 +1,549 @@ +-- C954015.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 requeued calls to task entries may, in turn, be requeued. +-- Check that the intermediate requeues are not blocked and that the +-- original caller remains blocked until the last requeue is complete. +-- This test uses: +-- Call with parameters +-- Requeue with abort +-- +-- TEST DESCRIPTION +-- A call is placed on the input queue of the Distributor. The +-- Distributor requeues to the Credit task; the Credit task requeues to a +-- secondary task which, in turn requeues to yet another task. This +-- continues down the chain. At the furthest point of the chain the +-- rendezvous is completed. To verify the action, the furthest task +-- waits in the accept statement for a second message to arrive before +-- completing. This second message can only arrive if none of the earlier +-- tasks in the chain are blocked waiting for completion. Apart from +-- the two Credit messages which are used to check the requeue chain one +-- Debit message is sent to validate the mix. +-- +-- +-- This series of tests uses a simulation of a transaction driven +-- processing system. Line Drivers accept input from an external source +-- and build them into transaction records. These records are then +-- encapsulated in message tasks which remain extant for the life of the +-- transaction in the system. The message tasks put themselves on the +-- input queue of a Distributor which, from information in the +-- transaction and/or system load conditions forwards them to other +-- operating tasks. These in turn might forward the transactions to yet +-- other tasks for further action. The routing is, in real life, dynamic +-- and unpredictable at the time of message generation. All rerouting in +-- this model is done by means of requeues. +-- +-- +-- CHANGE HISTORY: +-- 06 Dec 94 SAIC ACVC 2.0 +-- +--! + + +with Report; +with ImpDef; + +procedure C954015 is + + -- Arbitrary test values + Credit_Return : constant := 1; + Debit_Return : constant := 2; + + -- Mechanism to count the number of Credit Message tasks completed + protected TC_Tasks_Completed is + procedure Increment; + function Count return integer; + private + Number_Complete : integer := 0; + end TC_Tasks_Completed; + + TC_Expected_To_Complete : constant integer := 3; + + + -- Values added to the Return_Value indicating passage through the + -- particular task + TC_Credit_Value : constant integer := 1; + TC_Sub_1_Value : constant integer := 2; + TC_Sub_2_Value : constant integer := 3; + TC_Sub_3_Value : constant integer := 4; + TC_Sub_4_Value : constant integer := 5; + -- + TC_Full_Value : integer := TC_Credit_Value + TC_Sub_1_Value + + TC_Sub_2_Value + TC_Sub_3_Value + + TC_Sub_4_Value; + + type Transaction_Code is (Credit, Debit); + + type Transaction_Record; + type acc_Transaction_Record is access Transaction_Record; + type Transaction_Record is + record + ID : integer := 0; + Code : Transaction_Code := Debit; + Account_Number : integer := 0; + Stock_Number : integer := 0; + Quantity : integer := 0; + Return_Value : integer := 0; + TC_Message_Count : integer := 0; + TC_Thru_Distrib : Boolean := false; + end record; + + + task type Message_Task is + entry Accept_Transaction (In_Transaction : acc_Transaction_Record); + end Message_Task; + type acc_Message_Task is access Message_Task; + + task Line_Driver is + entry Start; + end Line_Driver; + + task Distributor is + entry Input(Transaction : acc_Transaction_Record); + end Distributor; + + task Credit_Computation is + entry Input(Transaction : acc_Transaction_Record); + end Credit_Computation; + + task Debit_Computation is + entry Input(Transaction : acc_Transaction_Record); + end Debit_Computation; + + -- The following are almost identical for the purpose of the test + task Credit_Sub_1 is + entry Input(Transaction : acc_Transaction_Record); + end Credit_Sub_1; + -- + task Credit_Sub_2 is + entry Input(Transaction : acc_Transaction_Record); + end Credit_Sub_2; + -- + task Credit_Sub_3 is + entry Input(Transaction : acc_Transaction_Record); + end Credit_Sub_3; + + -- This is the last in the chain + task Credit_Sub_4 is + entry Input(Transaction : acc_Transaction_Record); + end Credit_Sub_4; + + + -- Mechanism to count the number of Message tasks completed (Credit) + protected body TC_Tasks_Completed is + procedure Increment is + begin + Number_Complete := Number_Complete + 1; + end Increment; + + function Count return integer is + begin + return Number_Complete; + end Count; + end TC_Tasks_Completed; + + + + -- Assemble messages received from an external source + -- Creates a message task for each. The message tasks remain extant + -- for the life of the messages in the system. + -- The Line Driver task would normally be designed to loop continuously + -- creating the messages as input is received. Simulate this + -- but limit it to the number of dummy messages needed for this + -- test and allow it to terminate at that point. + -- + task body Line_Driver is + Current_ID : integer := 1; + TC_Last_was_for_credit : Boolean := false; + + -- Arbitrary limit for the number of messages sent for this test + type TC_Trans_Range is range 1..3; + + procedure Build_Credit_Record + ( Next_Transaction : acc_Transaction_Record ) is + Dummy_Account : constant integer := 100; + begin + Next_Transaction.ID := Current_ID; + Next_Transaction.Code := Credit; + Next_Transaction.Account_Number := Dummy_Account; + Current_ID := Current_ID + 1; + end Build_Credit_Record; + + procedure Build_Debit_Record + ( Next_Transaction : acc_Transaction_Record ) is + Dummy_Account : constant integer := 200; + begin + Next_Transaction.ID := Current_ID; + Next_Transaction.Code := Debit; + Next_Transaction.Account_Number := Dummy_Account; + Current_ID := Current_ID + 1; + end Build_Debit_Record; + + + begin + + accept Start; -- wait for trigger from Main + + -- Arbitrarily limit the loop to the number needed for this test only + for Transaction_Numb in TC_Trans_Range loop + declare + -- Create a task for the next message + Next_Message_Task : acc_Message_Task := new Message_Task; + -- Create a record for it + Next_Transaction : acc_Transaction_Record := + new Transaction_Record; + begin + -- Artificially send out in the order required + case Transaction_Numb is + when 1 => + Build_Credit_Record( Next_Transaction ); + when 2 => + Build_Credit_Record( Next_Transaction ); + when 3 => + Build_Debit_Record ( Next_Transaction ); + end case; + + -- Present the record to the message task + Next_Message_Task.Accept_Transaction ( Next_Transaction ); + end; -- declare + end loop; + + exception + when others => + Report.Failed ("Unexpected exception in Line_Driver"); + end Line_Driver; + + + + task body Message_Task is + + TC_Original_Transaction_Code : Transaction_Code; + This_Transaction : acc_Transaction_Record := new Transaction_Record; + + begin + + accept Accept_Transaction (In_Transaction : acc_Transaction_Record) do + This_Transaction.all := In_Transaction.all; + end Accept_Transaction; + + -- Note the original code to ensure correct return + TC_Original_Transaction_Code := This_Transaction.Code; + + -- Queue up on Distributor's Input queue + Distributor.Input ( This_Transaction ); + -- This task will now wait for the requeued rendezvous + -- to complete before proceeding + + -- After the required computations have been performed + -- return the Transaction_Record appropriately (probably to an output + -- line driver) + null; -- stub + + + -- The following is all Test Control Code + + -- Check that the return values are as expected + if TC_Original_Transaction_Code /= This_Transaction.Code then + -- Incorrect rendezvous + Report.Failed ("Message Task: Incorrect code returned"); + end if; + + if This_Transaction.Code = Credit then + if This_Transaction.Return_Value /= TC_Full_Value or not + This_Transaction.TC_Thru_Distrib then + Report.Failed ("Expected path not traversed - CR"); + end if; + if + This_Transaction.TC_Message_Count not in 1..2 then + Report.Failed ("Incorrect Message Count"); + end if; + else + if This_Transaction.Return_Value /= Debit_Return or + This_Transaction.TC_Message_Count /= 1 or not + This_Transaction.TC_Thru_Distrib then + Report.Failed ("Expected path not traversed - DB"); + end if; + end if; + TC_Tasks_Completed.Increment; + exception + when others => + Report.Failed ("Unexpected exception in Message_Task"); + + end Message_Task; + + + + -- Dispose each input Transaction_Record to the appropriate + -- computation tasks + -- + task body Distributor is + + begin + loop + select + accept Input (Transaction : acc_Transaction_Record) do + -- Show that the message did pass through the Distributor Task + Transaction.TC_Thru_Distrib := true; + + -- Pass this transaction on to the appropriate computation + -- task + case Transaction.Code is + when Credit => + requeue Credit_Computation.Input with abort; + when Debit => + requeue Debit_Computation.Input with abort; + end case; + end Input; + or + terminate; + end select; + end loop; + + exception + when others => + Report.Failed ("Unexpected exception in Distributor"); + end Distributor; + + + + + -- Computation task. + -- Note: After the computation is performed in this task the message is + -- passed on for further processing to some subsidiary task. The choice + -- of subsidiary task is made according to criteria not specified in + -- this test. + -- + task body Credit_Computation is + Message_Count : integer := 0; + begin + loop + select + accept Input ( Transaction : acc_Transaction_Record) do + -- Perform the computations required for this transaction + null; -- stub + + -- For the test: + if not Transaction.TC_Thru_Distrib then + Report.Failed + ("Credit Task: Wrong queue, Distributor bypassed"); + end if; + if Transaction.code /= Credit then + Report.Failed + ("Credit Task: Requeue delivered to the wrong queue"); + end if; + + -- for the test, plug a known value and count + Transaction.Return_Value := TC_Credit_Value; + Message_Count := Message_Count + 1; + Transaction.TC_Message_Count := Message_Count; + + -- Depending on transaction content send it on to the + -- some other task for further processing + -- TC: Arbitrarily send the message on to Credit_Sub_1 + requeue Credit_Sub_1.Input with abort; + end Input; + or + terminate; + end select; + end loop; + exception + when others => + Report.Failed ("Unexpected exception in Credit_Computation"); + end Credit_Computation; + + + + task body Credit_Sub_1 is + begin + loop + select + accept Input(Transaction : acc_Transaction_Record) do + -- Process this transaction + null; -- stub + + -- Add the value showing passage through this task + Transaction.Return_Value := + Transaction.Return_Value + TC_Sub_1_Value; + -- Depending on transaction content send it on to the + -- some other task for further processing + -- Arbitrarily send the message on to Credit_Sub_2 + requeue Credit_Sub_2.Input with abort; + end Input; + or + terminate; + end select; + end loop; + exception + when others => + Report.Failed ("Unexpected exception in Credit_Sub_1"); + + end Credit_Sub_1; + + task body Credit_Sub_2 is + begin + loop + select + accept Input(Transaction : acc_Transaction_Record) do + -- Process this transaction + null; -- stub + + -- Add the value showing passage through this task + Transaction.Return_Value := + Transaction.Return_Value + TC_Sub_2_Value; + -- Depending on transaction content send it on to the + -- some other task for further processing + -- Arbitrarily send the message on to Credit_Sub_3 + requeue Credit_Sub_3.Input with abort; + end Input; + or + terminate; + end select; + end loop; + exception + when others => + Report.Failed ("Unexpected exception in Credit_Sub_2"); + end Credit_Sub_2; + + task body Credit_Sub_3 is + begin + loop + select + accept Input(Transaction : acc_Transaction_Record) do + -- Process this transaction + null; -- stub + + -- Add the value showing passage through this task + Transaction.Return_Value := + Transaction.Return_Value + TC_Sub_3_Value; + -- Depending on transaction content send it on to the + -- some other task for further processing + -- Arbitrarily send the message on to Credit_Sub_4 + requeue Credit_Sub_4.Input with abort; + end Input; + or + terminate; + end select; + end loop; + exception + when others => + Report.Failed ("Unexpected exception in Credit_Sub_3"); + end Credit_Sub_3; + + -- This is the last in the chain of tasks to which transactions will + -- be requeued + -- + task body Credit_Sub_4 is + + TC_First_Message : Boolean := true; + + begin + loop + select + accept Input(Transaction : acc_Transaction_Record) do + -- Process this transaction + null; -- stub + + -- Add the value showing passage through this task + Transaction.Return_Value := + Transaction.Return_Value + TC_Sub_4_Value; + -- TC: stay in the accept body dealing with the first message + -- until the second arrives. If any of the requeues are + -- blocked the test will hang here indicating failure + if TC_First_Message then + while Input'count = 0 loop + delay ImpDef.Minimum_Task_Switch; + end loop; + TC_First_Message := false; + end if; + -- for the second message, just complete the rendezvous + end Input; + or + terminate; + end select; + end loop; + exception + when others => + Report.Failed ("Unexpected exception in Credit_Sub_4"); + end Credit_Sub_4; + + + + -- Computation task. + -- Note: After the computation is performed in this task and the + -- accept body is completed the rendezvous in the original + -- message task is completed. + -- + task body Debit_Computation is + Message_Count : integer := 0; + begin + loop + select + accept Input (Transaction : acc_Transaction_Record) do + -- Perform the computations required for this message + null; -- stub + + -- For the test: + if not Transaction.TC_Thru_Distrib then + Report.Failed + ("Debit Task: Wrong queue, Distributor bypassed"); + end if; + if Transaction.code /= Debit then + Report.Failed + ("Debit Task: Requeue delivered to the wrong queue"); + end if; + + -- for the test plug a known value and count + Transaction.Return_Value := Debit_Return; + -- one, and only one, message should pass through + Message_Count := Message_Count + 1; + Transaction.TC_Message_Count := Message_Count; + end Input; + or + terminate; + end select; + end loop; + exception + when others => + Report.Failed ("Unexpected exception in Debit_Computation"); + + + end Debit_Computation; + + +begin + + Report.Test ("C954015", "Test multiple levels of requeue to task entry"); + + Line_Driver.Start; -- Start the test + + -- Ensure that the message tasks completed before calling Result + while (TC_Tasks_Completed.Count < TC_Expected_To_Complete) loop + delay ImpDef.Minimum_Task_Switch; + end loop; + + Report.Result; + +end C954015; -- cgit v1.2.3