Argus Printf Statement

[Carter Bullard]

This I believe would be a huge thing to do, and I would like to
get some opinions on how this could work.  Now I don't have any
Perl experience, so all my examples will be C oriented.

I can see providing an argprintf() function that mimics sprintf():

   argprintf((char *)buf, (char *)formatstr, (ArgusStruct *) arg)

and the formatstr can have a syntax very much like printf() and
strftime().  A first thought, we could come up with a syntax
that allows us to extend the normal printf() and strftime()
formats with Argus data identifer tags.  This would allow a
preprocessor to be able to construct real sprintf() and
strftime() calls based on our syntax.

We've got to be able to specify source vs. destination for metrics
and flow identifiers, so a %s.X and a %d.Y type of qualifier may
be all that is needed.  For time we've got start and stop time
values and their formats to consider.

Does this seem reasonable?

Carter


-----Original Message-----
From: owner-argus at lists.andrew.cmu.edu
[mailto:owner-argus at lists.andrew.cmu.edu]On Behalf Of Russell Fulton
Sent: Tuesday, July 11, 2000 7:23 PM
To: argus at lists.andrew.cmu.edu
Subject: New Argus features.


I think I have mentioned this before but I'll do so again in case it 
has got overlooked.

In ra I would like to be able to control the formatting of the output 
record.  The easiest way I can think of this would be to allow one to 
specify a format string in the manner of strftime.  In particular I 
would like to be able to specify a format that is better suited to 
parsing in perl (tab delimited list of just the data I need). This 
could also be used to have different time formats british vs americal 
vs international and perhaps different timezones -- local or UTC.

Russell