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<== Date ==> <== Thread ==>

Subject: Re: Printing the timestamp_sec in CA wireshark plugin.
From: Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov>
To: "Shankar, Murali" <mshankar at slac.stanford.edu>
Cc: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Thu, 25 Nov 2021 08:00:29 -0800
On 11/24/21 6:07 PM, Shankar, Murali via Tech-talk wrote:
> Hello, 
> 
>   I am trying to track down some connectivity issues. I am using the wireshark LUA plugin to process a packet dump from production. Being a wireshark newbie, I was wondering if anyone know how to print the timestamp_sec and timestamp_nsec as part of rendering the ca_monitor event here - https://github.com/mdavidsaver/cashark/blob/master/ca.lua#L694 <https://github.com/mdavidsaver/cashark/blob/master/ca.lua#L694>. I am using wireshark-1.10.14 that ships as part of RHEL7...

The time, when available, is already being formatted[1].
At least the seconds part.

Including the fraction part would take some effort.  The Lua
os.date() does not seem to understand fractional seconds,
so this would need to be done explicitly with some string
manipulation.  (like epicsTimeToStrftime() does)

It might also mean some restructuring of how parse_dbr()
interacts with its callers to eg. move more of the printing
into parse_dbr().

Either of these would be welcomed changes.  I've opened a
ticket[3] for this if someone wants to have a go.

[1] https://github.com/mdavidsaver/cashark/blob/6448936200e7bf47a7da29138933e205ae567c64/ca.lua#L590
[2] https://www.lua.org/pil/22.1.html
[3] https://github.com/mdavidsaver/cashark/issues/11

References:
Printing the timestamp_sec in CA wireshark plugin. Shankar, Murali via Tech-talk

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