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Diffstat (limited to 'gcc/testsuite/ada/acats/tests/c9/c954014.a')
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diff --git a/gcc/testsuite/ada/acats/tests/c9/c954014.a b/gcc/testsuite/ada/acats/tests/c9/c954014.a deleted file mode 100644 index 53e45a090dd..00000000000 --- a/gcc/testsuite/ada/acats/tests/c9/c954014.a +++ /dev/null @@ -1,485 +0,0 @@ --- C954014.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 not canceled and that the requeueing --- task is unaffected when a calling task is aborted. Check that the --- abort is deferred until the entry call is complete. --- Specifically, check requeue to an entry in a different task, --- requeue where the entry call has parameters, and requeue --- without the abort option. --- --- TEST DESCRIPTION --- In the Driver create a task that places a call on the --- Distributor. In the Distributor requeue this call on the Credit task. --- Abort the calling task when it is known to be in rendezvous with the --- Credit task. (We arrange this by using artificial synchronization --- points in the Driver and the accept body of the Credit task) Ensure --- that the abort is deferred (the task is not terminated) until the --- accept body completes. Afterwards, send one extra message through --- the Distributor to check that the requeueing task has not been --- disrupted. --- --- 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 --- 25 Nov 95 SAIC Replaced global variables with protected objects --- for ACVC 2.0.1. --- ---! - -with Report; -with ImpDef; - -procedure C954014 is - - -- Arbitrary test values - Credit_Return : constant := 1; - Debit_Return : constant := 2; - - - protected type Shared_Boolean (Initial_Value : Boolean := False) is - procedure Set_True; - procedure Set_False; - function Value return Boolean; - private - Current_Value : Boolean := Initial_Value; - end Shared_Boolean; - - protected body Shared_Boolean is - procedure Set_True is - begin - Current_Value := True; - end Set_True; - - procedure Set_False is - begin - Current_Value := False; - end Set_False; - - function Value return Boolean is - begin - return Current_Value; - end Value; - end Shared_Boolean; - - - TC_Debit_Message_Complete : Shared_Boolean (False); - - -- Synchronization flags for handshaking between the Line_Driver - -- and the Accept body in the Credit Task - TC_Handshake_A : Shared_Boolean (False); - TC_Handshake_B : Shared_Boolean (False); - TC_Handshake_C : Shared_Boolean (False); - TC_Handshake_D : Shared_Boolean (False); - TC_Handshake_E : Shared_Boolean (False); - TC_Handshake_F : Shared_Boolean (False); - - - 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; - 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; - - - -- 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. - -- TC: 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 use - -- special artificial handshaking checks with the Credit accept body - -- to control the test. Allow it to terminate at the end - -- - task body Line_Driver is - Current_ID : integer := 1; - TC_First_message_sent: 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 -- TC: arbitrarily limit to one credit message - -- and one debit, then complete - 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 not TC_First_Message_Sent then - -- send out the first message which will be aborted - Build_Credit_Record ( Next_Transaction ); - Next_Message_Task.Accept_Transaction ( Next_Transaction ); - TC_First_Message_Sent := true; - - -- Wait for Credit task to get into the accept body - -- The call from the Message Task has been requeued by - -- the distributor - while not TC_Handshake_A.Value loop - delay ImpDef.Minimum_Task_Switch; - end loop; - - -- Abort the calling task; the Credit task is guaranteed to - -- be in the accept body - abort Next_Message_Task.all; -- We are still in this declare - -- block - - -- Inform the Credit task that the abort has been initiated - TC_Handshake_B.Set_True; - - -- Now wait for the "acknowledgment" from the Credit task - -- this ensures a complete task switch (at least) - while not TC_Handshake_C.Value loop - delay ImpDef.Minimum_Task_Switch; - end loop; - - -- The aborted task must not terminate till the accept body - -- has completed - if Next_Message_Task'terminated then - Report.Failed ("The abort was not deferred"); - end if; - - -- Inform the Credit task that the termination has been checked - TC_Handshake_D.Set_True; - - -- Now wait for the completion of the accept body in the - -- Credit task - while not TC_Handshake_E.Value loop - delay ImpDef.Minimum_Task_Switch; - end loop; - - while not ( Next_Message_Task'terminated ) loop - delay ImpDef.Minimum_Task_Switch; - end loop; - - -- Indicate to the Main program that this section is complete - TC_Handshake_F.Set_True; - - else - -- The main part of the test is complete. Send one Debit message - -- as further exercise of the Distributor to ensure it has not - -- been affected by the abort of the requeue; - Build_Debit_Record ( Next_Transaction ); - Next_Message_Task.Accept_Transaction ( Next_Transaction ); - end if; - 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 - - -- For the test 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 - -- The only Credit message was the one that should have been aborted - Report.Failed ("Abort was not effective"); - 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_Complete.Set_True; - 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 - - -- Indicate that the message did pass through the - -- Distributor Task - Transaction.TC_Thru_Distrib := true; - - -- Pass this transaction on the appropriate computation - -- task - case Transaction.Code is - when Credit => - requeue Credit_Computation.Input; -- without abort - when Debit => - requeue Debit_Computation.Input; -- without 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 - - -- The rest of this code is for Test Control - -- - 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 - if Message_Count /= 0 then - Report.Failed ("Aborted Requeue was not canceled -1"); - end if; - Message_Count := Message_Count + 1; - Transaction.TC_Message_Count := Message_Count; - - -- Having done the basic housekeeping we now need to signal - -- that we are in the accept body of the credit task. The - -- message has arrived and the Line Driver may now abort the - -- calling task - TC_Handshake_A.Set_True; - - -- Now wait for the Line Driver to inform us the calling - -- task has been aborted - while not TC_Handshake_B.Value loop - delay ImpDef.Minimum_Task_Switch; - end loop; - - -- The abort has taken place - -- Inform the Line Driver that we are still running in the - -- accept body - TC_Handshake_C.Set_True; - - -- Now wait for the Line Driver to digest this information - while not TC_Handshake_D.Value loop - delay ImpDef.Minimum_Task_Switch; - end loop; - - -- The Line driver has checked that the caller is not terminated - -- We can now complete the accept - - end Input; - -- We are out of the accept - TC_Handshake_E.Set_True; - - 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 - - -- The rest of this code is for Test Control - -- - 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 -- c954014 - Report.Test ("C954014", "Abort a task that has a call" & - " requeued_without_abort"); - - Line_Driver.Start; -- Start the test - - -- Wait for the message tasks to complete before reporting the result - -- - while not (TC_Handshake_F.Value -- abort not effective? - and TC_Debit_Message_Complete.Value -- Distributor affected? - and TC_Handshake_E.Value ) loop -- accept not completed? - delay ImpDef.Minimum_Task_Switch; - end loop; - - Report.Result; - -end C954014; |