On Jun 28 15:31, Christopher Faylor wrote:
> On Thu, Jun 25, 2009 at 10:50:05AM -0400, Christopher Faylor wrote:
> >On Thu, Jun 25, 2009 at 04:36:51PM +0200, Corinna Vinschen wrote:
> >>Looks like scp now stumbles over the pipe select() implementation.
> >
> >Yes. Grumble. That's a bad interaction between non-blocking writes and
> >our stupid-thanks-to-Microsoft select implementation. I think I can
> >work around this particular problem though. I'll get to that this
> >weekend.
>
> This should be fixed in the latest snapshot. I hated to do it because I
> think I've throttled pipe reads and writes somewhat but it should be
> more correct now.
>
> However, the new implementation may play more nicely with things like
> rsync which hang on pipe writes.
>
> Btw, Corinna, were you proposing turning the "FIXME" code in peek_pipe
> back on?
I'm a bit wary to do that, but...
> I don't think I ever saw it fail myself after my last round
> of tweaks but I don't remember what the exact problem was. Did it
> fail on some version of Windows NT/2000/XP/2003/2008/7?
...I just searched for the old threads and here's where the problem
starts:
http://cygwin.com/ml/cygwin/2004-09/msg00416.htmlThat led to:
http://cygwin.com/ml/cygwin-patches/2004-q3/msg00091.htmlAnd then there was the Unison problem:
http://cygwin.com/ml/cygwin/2004-09/msg01131.htmlWhich was subsequently discussed here:
http://cygwin.com/ml/cygwin-patches/2004-q3/msg00133.htmlI tested sftp with big files (Gigs) and it appears to work fine with the
FIXME code switched back to life. I tested the unison command using
Cygwin's unison 2.31.4-2 under tcsh and it worked fine. I tested
various combinations with pipes created by a native application and with
native applications on send and receive side of a Cygwin pipe and all my
testcases worked as expected.
So, maybe we should really give it a try again.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
--
Problem reports:
http://cygwin.com/problems.htmlFAQ:
http://cygwin.com/faq/Documentation:
http://cygwin.com/docs.htmlUnsubscribe info:
http://cygwin.com/ml/#unsubscribe-simple
