Re: Exposing linux libpcap ring buffer usage information

[Dustin Spicuzza <dustin () virtualroadside com>]

Guy Harris wrote:
> On Jul 14, 2009, at 9:05 AM, Dustin Spicuzza wrote:
>
> > I'd like to get information on how much of the mmap'ed ring buffer is
> > being used so that I can deal with dropped packets more effectively. I
> > was going to add a patch for this, but its not clear to me the best way
> > to expose the information. I'm tempted to just add an additional
> > call/struct for the information, but it would be nice if the existing
> > API's could be extended instead.
>
> What existing API were you thinking of extending?  Note that you can't
> grow the pcap_stat structure without breaking binary compatibility.

Yeah, that was the one that I was thinking of, but as you point out it
would break binary compatibility.

Dustin


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