Wireshark-dev: Re: [Wireshark-dev] Modifying the values used in the I/O Graph

From: Gerald Combs <gerald@xxxxxxxxxxxxx>
Date: Fri, 25 Apr 2014 10:19:57 -0700
On 4/25/14 10:06 AM, Andrew Bitson wrote:
> Hello,
> 
> I am interested in tackling a particular bug:
> <https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9985> but being new
> to the Wireshark source, I’d like some tips on where to look first. 
> 
> Where in the source tree would the optimal location be to address this
> bug? I have been thinking that the ui/gtk/oi_stat.c file would be ideal,
> but am not familiar with the data structures used or other method calls.

Are you working from a recent master? If so most of the arithmetic grunt
work has been moved to ui/io_graph_item.c. It's used by both
ui/gtk/io_stat.c and ui/qt/io_graph_dialog.cpp.


With respect to the actual bug, are you proposing to add a separate
"ABS" calculation? If so you'd add an entry io_graph_item_unit_t in
io_graph_item.h and work from there.

Otherwise you could add a "Use absolute values" setting for each dialog
similar to the smoothing setting.