From: Adam Prescott <adam@...>
Date: 2013-03-16T23:34:43+09:00
Subject: Re: control the concurrent thread numbers

On 16 March 2013 14:24, Ken Paul <lists@ruby-forum.com> wrote:
> You are right, I'm trying to consume the array simultaneously. But after
> I move the join out of loop, it still has problem. How to fix it?

Every thread is executing code wrapped in a mutex, so only one thread
will be able to #shift the array.

As Joel said, what's the problem you're really trying to solve?