Re: UDP recvmsg blocks after select(), 2.6 bug?
From: H. Peter Anvin
Date: Thu Oct 21 2004 - 00:27:25 EST
Chris Friesen wrote:
H. Peter Anvin wrote:
The whole point is that it doesn't break the *documented* interface.
In my view (and apparently others, as has been verified in current apps
using blocking sockets), current behaviour *does* break the documented
interface.
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..."
If I'm the only one touching the socket, select returns with it
readable, and I block when calling recvmsg, then by definition that
behaviour does not match the documented interface.
I'm talking about returning -1, EIO.
-hpa
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