hi alex,
            Shiva here. I have done a small program which uses protected
and 2 tasks. Check this, but this program works........

with Ada.Text_Io;
use  Ada.Text_Io;

procedure Protected_Task is
   protected Task_Var is
      procedure Increment;
   private
      A : Integer:=0;
   end Task_Var;

   protected body Task_Var is
      procedure Increment is
      begin
         A:=A+1;
         New_Line;
         Put(" A value :");
         Put(Integer'Image(A));
      end Increment;
   end Task_Var;


   task type A1 is
      entry Increment1;
   end A1;

   task body A1 is
   begin
      loop
         accept Increment1 do
            New_Line;
            Put(" Inside increment of task 1");
            Task_Var.Increment;
            New_Line;
         end Increment1;
      end loop;
   end A1;


   task type A2 is
      entry Increment2;
   end A2;

   task body A2 is
   begin
      loop
         accept Increment2 do
            New_Line;
            Put(" Inside increment of task 2");
            Task_Var.Increment;
            New_Line;
         end Increment2;
      end loop;
   end A2;

   Tsk1 : A1;
   Tsk2 : A2;
begin

   loop
      Tsk1.Increment1;
      Tsk2.Increment2;
      delay 1.0;
   end loop;
end Protected_Task;

I have also attached the program and the exe of it... This was done on GNAT
compiler, Ada gide editor

(See attached file: protected_task.adb)(See attached file:
protected_task.exe)


Regards,
shiva....!!
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Hi,

Could anybody help me with a tasking problem I am experiencing in ADA?

I have a protected object (PO), and when a single task accesses this PO,
then everything is fine.
As soon as I have more then one task trying to access the PO, the software
hangs as soon as the 2nd task trys to gain access.

What could cause this to happen?
All the tasks have the same priority.

Any advice would be greatly appreciated.

Cheers

Alex































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