From: Robert Klemme <shortcutter@...>
Date: 2009-12-04T19:26:03+09:00
Subject: Re: How to make net-ping thread safe?

2009/12/4 Leo Stern <lsternlicht@gmail.com>:
> Jean-François Trân wrote:
>> 2008/3/16, Laurent Julliard <laurent@moldus.org>:
>>
>>>  Your recommendation is to turn the sequence number into a class
>>> variable so shouldn't the sequence number really be named @@seq
>>> rather than @seq if we want the sequence number to be unique across
>>> multiple instances of ICMP objects?
>>
>> If I am correct, Joel is using a ICMP class instance variable instead
>> of a class variable. So in the patch, @seq is not a var of an ICMP
>> object but an instance variable of ICMP class (as an object :) ).
>
> Why?

Because @@class variables are broken.  You can find numerous threads
about the topic here.

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/