Hi,
I am currently trying to understand the RPC mechanism of NFS Ganesha (using
v2.1).
In svc_rqst.c file, A socket pair is created per event channel (for UDP,
TCP etc.)
But I can't really find out what is the use of this socket pair.
A new event signaled ( via *ev_sig()* function) whenever there are events
for the socket epoll via*epoll_ctl()* call. *ev_sig()* just writes the data
into the socket pair (writer end).
On the other end, *consume_ev_sig_nb()* triggered whenever there are events
in the socket pair's receiver end.
But the caller don't process returned value from consume_ev_sig_nb() call,
It simply ignores it.
** (void)consume_ev_sig_nb(sr_rec->sv[1]);
So my question is what is the need for this socket pair in svc_rqst.c file,
when the event/signal consumer is not doing any operation based on the
event.
Thanks,
Arun
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