On 03/08/2018 07:24 PM, Ulrich Windl wrote:
Hi!
What surprises me most is that a connect(...O_NONBLOCK) actually blocks:
EINPROGRESS
The socket is non-blocking and the connection cannot be com-
pleted immediately.
Maybe it is because that the socket is created by sock_create_kern, and
O_NONBLOCK flag is not worked since __sctp_connect has the following
description.
/* in-kernel sockets don't generally have a file allocated to them
* if all they do is call sock_create_kern().
*/
if (sk->sk_socket->file)
f_flags = sk->sk_socket->file->f_flags;
timeo = sock_sndtimeo(sk, f_flags & O_NONBLOCK);
Thanks,
Guoqing
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