c954014.a

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                  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;