From: Eric Armstrong <Eric.Armstrong@...>
Date: 2006-04-14T13:50:55+09:00
Subject: Re: Rake: Making "cleanup" task

Thanks. It must be standard on unix systems. All those
years wasted mastering Data General technologies...
Sigh.
:_)

Guillaume Marcais wrote:
> Note that this is fairly "standard" and exists also in C. From the man 
> page of exit() on Linux:
> 
> DESCRIPTION
>        The  exit()  function causes normal program termination and the 
> the value of
>        status & 0377 is returned to the parent (see wait(2)).  All 
> functions regis-
>        tered  with  atexit() and on_exit() are called in the reverse 
> order of their
>        registration, and all open streams are flushed and closed.  Files 
> created by
>        tmpfile() are removed.
> 
> Guillaume.
> 
> Le 10 avr. 06, � 19:47, Eric Armstrong a �crit :
> 
>> Most excellent. How on earth did you find that?
>> How did you know to look for it, orginally?
>>
>> Or did you just happen to stumble across it while
>> persuing API docs using ri?? (In which case, that
>> would seem to be the thing to do!)
>>
>> Logan Capaldo wrote:
>>> On Apr 7, 2006, at 9:10 PM, Eric Armstrong wrote:
>>>> That's looking like a cool solution. What is that
>>>> at_exit thing, btw? Is that a standard part of rake
>>>> I should know about?
>>> at_exit is a standard part of ruby
>>> % ri at_exit
>>> --------------------------------------------------------- Kernel#at_exit
>>>      at_exit { block } -> proc
>>> ------------------------------------------------------------------------
>>>      Converts block to a Proc object (and therefore binds it at the
>>>      point of call) and registers it for execution when the program
>>>      exits. If multiple handlers are registered, they are executed in
>>>      reverse order of registration.
>>>         def do_at_exit(str1)
>>>           at_exit { print str1 }
>>>         end
>>>         at_exit { puts "cruel world" }
>>>         do_at_exit("goodbye ")
>>>         exit
>>>      produces:
>>>         goodbye cruel world
>>
>>
> 
> 
>