[Click] Reg StoreTimestamp element

[Roman Chertov]

Sandeep,

You might also want to use StoreUDPTimeSeqRecord element to embed time 
and sequence number information into packets.
http://read.cs.ucla.edu/click/elements/storeudptimeseqrecord

In my experiments, I typically always save the packets to a PCAP file 
(ToDump) element, and then use a C program to look at the PCAP file and 
extract the appropriate statistics.  I can send the code which computes 
delays, inter-arrival times, arrival times, etc. to the list tomorrow.

Roman

On 09/05/2011 04:45 AM, sandeep wrote:
> Hi,
>
> I am using StoreTimestamp element to put a timestamp at the tail of a
> packet. Can anyone tell me how to extract the timestamp value out of it on
> the receive end or from the dump file.
>
> -----
> My analysis is as follows:
> The source code which does this is.
> memcpy(q->data() + offset,&q->timestamp_anno(), 8);
>
> I looks like pointer to Timestamp is written during this memcpy operation.
>
> I managed to print the timestamp string using
> printf("Timestamp is %s\n",
> ((&q->timestamp_anno())->unparse()).mutable_data());
> -------
>
> Kind Regards,
> Sandeep,
> PhD Student,
> CTVR<http://ctvr.ie/>  - Trinity College Dublin
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