Re: Two-Way Task Communication In Ada (w/o Protected Objects)

[Stephen Leake <Stephen.Leake@gsfc.nasa.gov>]

ericferg@aol.com wrote:
> 
> [snip]

> Would anyone happen to know of any way to position or structure Ada task
> declarations such that two tasks will have visibility of each other, and
> may _directly_ invoke each other's entries (and thus provide for direct,
> two way message & argument passing, without the use of intermediate
> argument buffers)?
> 

This compiles with gnat 3.04 :

procedure Example is

   task Don is
      entry One_Side;
   end Don;

   task Mclean is
      entry Another_Side;
   end Mclean;

   task body Don is
   begin
      accept One_Side
      do
         Mclean.Another_Side;
      end One_Side;

   end Don;

   task body Mclean is
   begin
      accept Another_Side;

      Don.One_Side;
   end;

begin

   Don.One_Side;
end Example;

Clearly this example does no real work :-). Perhaps you want the two
tasks to be in separate packages? Then the bodies can still reference
each other.

-- 
- Stephe