[Winpcap-users] Question about operation of pcap_next_ex () in
samsaw7 at yahoo.com
Mon May 7 09:00:29 GMT 2007
I am using the winpcap 4.0 library to send and receive
TCP/IP packets to/from a demo application running on a
Windows 2000/XP computer.
From an earlier post, I learnt that setting the
'read_timeout' parameter of pcap_open () to -1 causes
pcap_next_ex () to exhibit non-blocking behavior.
In such a (non-blocking) configuration, what are the
parameters that determine when packets are copied out from
the kernel buffers into the user buffers (where they can be
retrieved via the pcap_next_ex () call)? Is the
pcap_setmintocopy () call still relevant in such a (non-
blocking) configuration? What role does the
PCAP_OPENFLAG_MAX_RESPONSIVENESS flag (specified in the
'flags' parameter in the call to pcap_open ()) play?
Also, one of the papers at this site talks about an API
call to set the size of the user buffer. However, I
wasn't able to find any such function in the WinPcap
documentation. Can you please point me to the relevant
8:00? 8:25? 8:40? Find a flick in no time
with theYahoo! Search movie showtime shortcut.
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