From: Dave Thomas <Dave@...>
Date: 2000-10-27T21:26:37+09:00
Subject: [ruby-talk:5908] Re: [RFC] Towards a new synchronisation primitive

hipster <hipster@xs4all.nl> writes:


> I'd say the point of definition of a method is at the end of the def
> expression, before any method body expressions. Therefore only the
> method body is subject to sync-behaviour.

I can see cases where that wouldn't work, such as:

   class RingBuffer

      def sync initialize
         @inPtr = @outPtr = 0
      end

      def sync printBuff(from = @inPtr, to = @outPtr)
        # ...
      end
   end

If synchronization only applies to the method body, its possible that
from gets assigned @inPtr in one state, then something else runs, and
to gets @outPtr in another state. Not critical in this case, but I
guess it could be.



Dave