From: Sean O'Halpin <sean.ohalpin@...>
Date: 2013-02-25T09:43:55+09:00
Subject: Re: Ruby Multithreaded producer-consumer problem

On Sun, Feb 24, 2013 at 10:37 PM, Robert Klemme
<shortcutter@googlemail.com> wrote:
> On Sun, Feb 24, 2013 at 9:08 PM, Sean O'Halpin <sean.ohalpin@gmail.com> wrote:
>>
>> Also, why would @age need synchronization?
>
> In http://www.ruby-forum.com/attachment/8132/orange_tree.rb there is
> read access to @age from one thread (#pick_an_orange) and read write
> access from the other (#one_year_passes) => synchronization needed.
>

Ah yes - thanks. I have a bad habit of thinking of integer read/writes
as atomic but a Fixnum isn't that simple (nor is anything anyway with
multiprocessors in the mix).

Regards,
Sean