[Xorp-hackers] FEA: Difference in _live_config v/s _pulled_config

[Ben Greear]

Pavlin Radoslavov wrote:
> Ben Greear <greearb at candelatech.com> wrote:
>
>   
>> It seems to me that these two have significant overlap in
>> meaning and perhaps could be consolidated?
>>
>> Why do we have both of them?
>>     
>
> Conceptually they are populated using different mechanisms, but
> pragmatically they should contain same information.
>
> The _live_config IfTree is populated/updated asynchronously by the
> IfConfig Observer that tracks the kernel upcalls.
> The _pulled_config is populated on demand (explicitly) by the
> pull_config() method.
> In other words, _live_config is a moving target, while
> _pulled_config is a snapshot.
>   
I merged these, and it seems to work fine.  Eventually, that might be a 
good way
to get rid of some many pull_config() calls as well.  I can't think of 
any reason why
we'd ever *want* pulled_config to get stale, so letting observer update 
it seems
valid.  Maybe I'm missing something?

Thanks,
Ben

> Regards,
> Pavlin
>   


-- 
Ben Greear <greearb at candelatech.com> 
Candela Technologies Inc  http://www.candelatech.com