From: Tom Rauchenwald <its.sec@...>
Date: 2006-07-06T07:31:27+09:00
Subject: Re: thread mystery

ara.t.howard@noaa.gov writes:

> any idea why this script slows downs drastically as it runs and seems to leak
> memory?

First, I'm not a Ruby expert or something, but..

[Code skipped]

> switch = Switch.new

Here you create the switch.

> toggle = SwitchToggle.new switch

Here, toggle is created and registered as listener (in the constructor)

> switch.on!

So now you switch it on.
Toggle gets notified, and creates a thread that switches it off.
But when that Thread switches it off, toggle gets notified, and starts a
thread that switches it on again..
Basically it's an infinite loop, and i suspect it's leaking because GC
doesn't kick in.