From: Robert Klemme <shortcutter@...>
Date: 2007-11-18T01:21:14+09:00
Subject: Re: call with async method

2007/11/17, Alex Young <alex@blackkettle.org>:
> K. R. wrote:
> > Hi @all
> >
> > I'm developing a tool who sniff the networktraffic on the nic. I would
> > like to call the method asynchron from a other pc. I realize this
> > problem with xmlrpc4r. To sniff the networkpackets, I use the pcaplet.
> >
> > Now, I want to stop the sniffing method also at the remote side. The
> > idea is to set a global flag $state to boolean false. But it doesn't run
> > correctly. You can see below the code from the remote class.
> >
> > Thanks for helping...
> >
> > ______________Sniffing class____________________
> >
> > class Sniffer
> >   $state = true
> >
> >   def start_sniffing
> >     @pcaplet = Pcaplet.new("-i eth0")
> >     # ...and so on....
> >
> >     for pkt in @pcaplet
> >       puts pkt.time
> >       break if $state == false # stop sniffing
> >     end
> >   end
> >
> >   def stop_sniffing
> >     $state = false
> >   end
> > end
> > _________________________________________________
>
> Not sure why you want a global for this.  Wouldn't it be better to set
> an @state instance variable in Sniffer's initialize method, and refer to
> that in start_sniffing and stop_sniffing?

Definitively. And also: KR, where do you do the sniffing?  Is it in
Pcaplet's constructor?  In that case the flag would be useless.

Cheers

robert

-- 
use.inject do |as, often| as.you_can - without end