From: Alex Young <alex@...>
Date: 2007-11-17T23:09:56+09:00
Subject: Re: call with async method

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?

-- 
Alex