Function in Filter/Handler Chain Doing Actual Sending?

[Zorceta Moshak]

Hi there,
I'm about to put some traffic stats code into the nginx core, as I'm going
to let the traffic go into specific user's "iptables" statistics by
setuid() rather than creating a filter counting bytes,for other toys are
already going thru iptables.
The problem is,that I can't figure out where's the point......Evan Miller's
articles?Read,but still not clear about how to go thru the chain.In
"ngx_http_write_handler" found the struct "connection" has a pointer to
function "send_chain" that might be,but can't find it anywhere.I'm not that
kind waiting for a LMGIFY link(although Google doesn't help either),but I
gracefully appreciate if you can tell it.Thanks a looooooooooooot!!

Yours,
Zorceta Moshak
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