Re: question on tasks

["Martin Dowie" <martin.dowie@btopenworld.com>]

"Peter Walker" <p.walker@trinet.com> wrote in message 
news:414bf572@dnews.tpgi.com.au...
> Hi, is it possible to have a task do the following two things 
> simultaneously:

No _exactly_ at the same time but I think I know what you mean...

...is this what you're after?

with Ada.Numerics.Float_Random; use Ada.Numerics;
with Ada.Text_Io; use Ada.Text_Io;
procedure Peter is
   type Location is (Alpha, Beta);
   package Communication_Buffer is
      procedure C1 (A, B : Integer; C : String);
   end Communication_Buffer;
   package body Communication_Buffer is
      procedure C1 (A, B : Integer; C : String) is
      begin
         Put_Line ("C1 got [" & C & "]");
      end C1;
   end Communication_Buffer;
   task A is
      entry Incoming (Source : Location; Destination : Location; Message : 
String);
   end A;
   task body A is
      Done : Boolean := False;
      Messages_To_Send : Integer := 3;
      A, B : Integer := 0;
      G : Float_Random.Generator;
   begin
      while not Done loop
         select
            accept Incoming (Source : Location; Destination : Location; 
Message : String) do
               Put_Line ("Recieved message " & Message & " from " & 
Location'Image (Source));
            end Incoming;
         or
            -- delay Duration (Random_Time.Random (Seed));
            delay Duration (Float_Random.Random (G));
            if Messages_To_Send > 0 then
               Communication_Buffer.C1 (A, B, "Hello");
               Messages_To_Send := Messages_To_Send - 1;
            end if;
         end select;
      end loop;
   end A;
begin
   A.Incoming (Alpha, Beta, "foo");
end Peter;