POLLHUP during a non-blocking connection?

Question

I open the socket and try to connect () to a nonexistent peer. The connect () function is not blocked.

Then I epoll on the socket.

Sometimes I get EPOLLERR | EPOLLHUP and subsequent getockopt (SO_ERROR) returns ECONNREFUSED. This is what I would expect.

However, sometimes I get only EPOLLHUP and the subsequent getockopt (SO_ERROR) returns 0.

Does anyone know what is meant in the latter case?

+5

Martin sustrik Jun 25 '12 at 16:26

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