[Libmetrics-devel] Re: Metrics 2.0?

[Tim N. <arc...@we...>]

On Tue, 12 Apr 2005, Luke Kanies wrote:

> On Mon, 2005-04-11 at 11:17 +1000, Tim Nelson wrote:
>> On Fri, 8 Apr 2005, Luke Kanies wrote:
>>> Well, the real problem here is that the functions aren't meant to take
>>> arguments, and the disk function obviously needs to do so.
>>
>>  	I was kinda wanting to myself for something else, but if we use
>> the "get function" thing I talk about in the other mail, that'll solve the
>> problem for me.  But not for disk :).  And disks aren't the only things
>> which have multiples.  Eg.
>> -	CPUs
>> -	Load averages
>> -	Network interfaces
>>
>>  	As time goes on, I suspect that multiples of things are going to
>> become more popular.
>
> I agree with that statement, but I don't think your solution quite
> covers it, unless the va_start stuff does the rest.  It seems that for

 	Yes :).

> most things that involve multiple numbers (disks, cpu, load, network),
> each type of metric needs a function to collect all of the information
> and store it in some globally accessable place, and then there needs to
> be a specifically named metric for each instance (each disk, each cpu
> type, etc.) that one can use to retrieve each of the values.

 	Hmm.  The problem with storing information in a global place is, 
what if the source of the information changes it?  That's not a problem 
with the current libmetrics, but it is with the distropicker thing I 
wrote, and a problem I'll need to deal with (but copeable :) ).

> Is that basically what you had in mind?  Is the collection function what
> you are calling 'va_start'?
>
> Do you have an idea for such an architecture?

 	Read "man va_start", and then tell me whether you still want these 
answered :).

> BTW, I've CC'ed the libmetrics-devel list, so we can start getting these
> emails on record.  Please continue in that vein.

 	I was intending to do that as soon as I'd subscribed (which I now 
have).

 	Also, I'm going to have a busy week here, so I won't get back to 
working on libmetrics in that time.

-- 
Tim Nelson
Server Administrator
WebAlive Technologies Global
Level 1 Innovation Building, Digital Harbour
1010 LaTrobe Street
Docklands, Melbourne, 
Vic, 3008
Phone: +61 3 9934 0812
Fax: +61 3 9934 0899
E-mail: tim...@we...
http://www.webalive.biz/

"Your Business, Your Web, Your Control"