[Winpcap-users] Re: calculating number of bits per second whengathering statistics

[Gianluca Varenni]

----- Original Message ----- 
From: joe kibz
To: winpcap-users at winpcap.org
Sent: Wednesday, May 17, 2006 11:32 PM
Subject: [Winpcap-users] Re: calculating number of bits per second 
whengathering statistics



Problem:

//this is how calculating bits per second is shown in the winpcap docs...

Bps.QuadPart=(((*(LONGLONG*)(pkt_data + 8)) * 8 * 1000000) / (delay));
I don't understand the (pkt_data + 8) part ; why is 8 being added ?

--GV--

The statistics are returned as two 64bit values inside the packet data, so

- packet_data   is a pointer to the first 64bit integer (containing the 
number of packets)
- packet_data+8 is a pointer to the second 64bit integer (containing the 
number of bytes)

I agree that the code in the sample is not so elegant.

Have a nice day
GV


--GV--

joe



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