From: Joel VanderWerf <vjoel@...>
Date: 2007-12-08T12:47:06+09:00
Subject: Re: at_exit() Inherited Across fork()

James Gray wrote:
> I guess it just kind of feels like the scripting language should be 
> doing something more clever for us here so we don't have to do this kind 
> of stuff though.

I'd rather that ruby mirror the C API, and make it easy to add your own 
behavior on top of that.

What about something like this?

module Kernel
   def at_exit_in_this_process(&handler)
     unless $at_exit_in_this_process
       $at_exit_in_this_process = Hash.new{|h,k| h[k]=[]}
       at_exit do
         $at_exit_in_this_process[Process.pid].reverse_each do |hdlr|
           hdlr.call
         end
       end
     end
     $at_exit_in_this_process[Process.pid] << handler
   end
end

at_exit_in_this_process {p 1}
fork do
   at_exit_in_this_process {p 2}
end
Process.wait

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407