From: James Gray <james@...>
Date: 2009-04-25T04:11:41+09:00
Subject: Re: proper way to daemonize

On Apr 24, 2009, at 2:07 PM, Tim Pease wrote:

> On Fri, Apr 24, 2009 at 12:46 PM, Eric Hodel <drbrain@segment7.net>  
> wrote:
>> On Apr 24, 2009, at 08:11, Tim Pease wrote:
>>>
>>> # ...
>>>
>>> This is the standard code to daemonize a process. The use of "exit"
>>> bothers me slightly, as it will call all "at_exit" handlers in the
>>> parent. I do not believe this is the desired behavior; the "at_exit"
>>> handlers will free resources that the daemonized process might need.
>>> Instead, "exit!" should be used to prevent "at_exit" handlers from
>>> being called.
>>>
>>> Any thoughts about this subtle change? Are there any undesirable  
>>> side
>>> effects that arise from using exit! instead of exit ?
>>
>> Why not just:
>>
>> require 'webrick/server'
>>
>> WEBrick::Dameon.start
>>
>> It has exit! and all that built-in.
>>
>
> Eric, if I had half your brain I'd be twice as smart. Didn't even
> think to look through the stdlibs.

As of Ruby 1.9 Process.daemon() is a core method.  Just one more  
reason 1.9 rocks.  :)

James Edward Gray II