Re: UDP recvmsg blocks after select(), 2.6 bug?

From: Chris Friesen
Date: Wed Oct 06 2004 - 10:17:03 EST


David S. Miller wrote:
On Wed, 6 Oct 2004 16:52:27 +0200 (CEST)
Joris van Rantwijk <joris@xxxxxxxxxx> wrote:


My understanding of POSIX is limited, but it seems to me that a read call
must never block after select just said that it's ok to read from the
descriptor. So any such behaviour would be a kernel bug.


There is no such guarentee.

Hmm, the man page for select() says:

"Those listed in readfds will be watched to see if characters become available for reading (more precisely, to see if a read will not block"

Maybe it needs changing?

Chris
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