> Jamie Lokier wrote:
> > (e) there is urgent data with OOBINLINE (I think)
>
> To be more precise, using the POLLRDHUP patch as-is, if someone sends
> your program some data, then an URGent segment, then a FIN with
> optional data in between, your program won't notice the second data or
> FIN and will fail to clean up the socket.
And why ? To me it looks fairly simple. When the FIN is received a wakeup
is done on the poll wait list and the following f_op->poll will fetch the
RDHUP flag. Then the next epoll_wait() will fetch the event and will have
all the info it needs to do things correctly.
- Davide
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