Urgent need for advice: POLLHUP and sockets

[Martin Wilck]

On Tue, 16 Apr 2002, Michael Cardenas wrote:

> Could you use the set_select_events to say that you don't want any more
> POLLHUP events?

No you can't - that's how poll() works (at least on Linux).

<man poll>
int poll(struct pollfd *ufds, unsigned int nfds, int timeout);

[...]

The field revents is an output parameter, filled by the kernel with the
events that actually occurred, either of the type requested, or of one of
the types POLLERR or POLLHUP or POLLNVAL.  (These three bits are meaningless in  the
events  field,  and  will  be set in the revents field whenever the
corresponding condition is true.)
</man poll>

Martin

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