Dan Kegel wrote:
> > > > Then you get what is available.
> > >
> > > Because you're not using a nonblocking socket, the read()
> > > blocks until the number of requested bytes become available.
> > >
> > > You would "get what is available" only if you set the socket into
> > > nonblocking mode.
> >
> > That is simply not true. The state machine sample would not work AT ALL
> > if that were the case. But like I say, go ahead, make them non-blocking.
> > Suits me.
>
> ? You're saying that, simply because select() said a file was readable,
> that you can read 1024 bytes from it without blocking.
>
> I must be missing something.
OK, I got it. Sorry for the line noise. read() does return early
on partial reads even when not in nonblocking mode.
I do still think Ben is trusting select a bit too much; real servers
that must avoid blocking really do set sockets to nonblocking mode
just in case.
- Dan
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