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<p class=MsoNormal>Hi Everybody,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I am writing an application that is intercepting packets
from a network and after reading a whole lot of posts regarding lost messages I
figured the fault is usually in application taking too long to process a batch
of packets which causes the overfilled buffer to replace oldest messages. So I
decided that the following setup is the best possible way to ensure that my
messages are not lost.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Put capture (using pcap_next_ex()) into a different
thread then the processing.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Store packets immediately upon extraction into a custom
written linked list, adding to the end and processing from the front (in
different threads) ensuring no mutex controls are necessary and no idle time.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Now here is the problem for which I need your expert advice,
since the pcap_next_ex() returns pointers to data, I still need to extract them
(I use for loop) before I can store which still preoccupies the capture thread
and slows down extraction process. So is there a better way to extract packets
without this delay?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I would appreciate any and all advice regarding the optimal
solution architecture wise.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Regards,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Dennis <o:p></o:p></p>
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