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Diffstat (limited to 'gcc-4.9/gcc/testsuite/ada/acats/tests/c9/c954011.a')
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diff --git a/gcc-4.9/gcc/testsuite/ada/acats/tests/c9/c954011.a b/gcc-4.9/gcc/testsuite/ada/acats/tests/c9/c954011.a new file mode 100644 index 000000000..159b32dba --- /dev/null +++ b/gcc-4.9/gcc/testsuite/ada/acats/tests/c9/c954011.a @@ -0,0 +1,384 @@ +-- C954011.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 a requeue is placed on the correct entry; that the +-- original caller waits for the completion of the requeued rendezvous; +-- that the original caller continues after the rendezvous. +-- Specifically, this test checks requeue to an entry in a different +-- task, requeue where the entry has parameters, and requeue with +-- abort. +-- +-- TEST DESCRIPTION: +-- In the Distributor task, requeue two successive calls on the entries +-- of two separate target tasks. Each task in each of the paths adds +-- identifying information in the transaction being passed. This +-- information is checked by the Message tasks on completion ensuring that +-- the requeues have been placed on the correct queues. +-- +-- 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 +-- 26 Nov 95 SAIC Fixed problems with shared global variables +-- for ACVC 2.0.1 +-- +--! + +with Report; +with ImpDef; + +procedure C954011 is + + + -- Arbitrary test values + Credit_Return : constant := 1; + Debit_Return : constant := 2; + + 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; + + protected type Message_Mgr is + procedure Mark_Complete; + function Is_Complete return Boolean; + private + Complete : Boolean := False; + end Message_Mgr; + + protected body Message_Mgr is + procedure Mark_Complete is + begin + Complete := True; + end Mark_Complete; + + Function Is_Complete return Boolean is + begin + return Complete; + end Is_Complete; + end Message_Mgr; + + TC_Debit_Message : Message_Mgr; + TC_Credit_Message : Message_Mgr; + + + 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; + + + + -- 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 two dummy messages 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; + + 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 + + for i in 1..2 loop -- arbitrarily limit to two messages for the test + 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 + if TC_Last_was_for_credit then + Build_Debit_Record ( Next_Transaction ); + else + Build_Credit_Record( Next_Transaction ); + TC_Last_was_for_credit := true; + end if; + 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 /= Credit_Return or + This_Transaction.TC_Message_Count /= 1 or not + This_Transaction.TC_Thru_Distrib then + Report.Failed ("Expected path not traversed"); + end if; + TC_Credit_Message.Mark_Complete; + 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"); + end if; + TC_Debit_Message.Mark_Complete; + end if; + + 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 + -- Mark the message as having passed through the distributor + Transaction.TC_Thru_Distrib := true; + + -- Pass this transaction on 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 and the + -- accept body is completed the rendezvous in the original + -- message task is completed. + -- + 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 := Credit_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 Credit_Computation"); + end Credit_Computation; + + + + -- 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 -- c954011 + + Report.Test ("C954011", "Requeue from task body to task entry"); + + Line_Driver.Start; -- Start the test + + -- Ensure that the message tasks complete before reporting the result + while not (TC_Credit_Message.Is_Complete and + TC_Debit_Message.Is_Complete) loop + delay ImpDef.Minimum_Task_Switch; + end loop; + + Report.Result; + +end C954011; |