From: Guillaume Marcais <guslist@...>
Date: 2006-04-12T23:41:46+09:00
Subject: Re: Rake: Making "cleanup" task

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
>
>