From: tsuraan <tsuraan@...>
Date: 2006-01-26T07:08:36+09:00
Subject: Re: ensure statement and signals

Wow, I'm not smart.  I had print in my actual test code, which doesn't
do a newline.  The message was lost in my ugly command prompt.  So, it
looks like Ruby handles this very nicely (with a SignalException). 
Sorry for the noise.


On 25/01/06, tsuraan <tsuraan@gmail.com> wrote:
> I have a program (currently written in python, but that could change
> :) that runs until it recieves a signal to exit.  Before exiting, it
> needs to close a Lucene index, so the logical thing to do would be put
> that writer.close call in an ensure statement so that the index will
> close before the program exits.  It looks like ruby (python as well)
> doesn't integrate external signals in the normal program flow at all.
> Is it possible to have a signal trigger an exception so that an ensure
> statement will be executed?  My test code is:
>
> #!/usr/bin/env ruby
> begin
>   sleep(1000)
> ensure
>   p "hi there!"
> end
>
> And I run the script and send it all sort of signals (quit, int, term,
> hup, etc).  Nothing makes the program print "hi there!"  Can this be
> done?
>