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From: Uri Simchoni <uris AT ctera DOT com>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Date: Tue, 29 Dec 2009 01:07:05 -0500
Subject: RE: Cygwin 1.7.1-1 - problem with non-blocking socket IO
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References: <20091228172405 DOT GB15530 AT calimero DOT vinschen DOT de>
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Thanks for the quick response. Could you post the patch?
Uri.

-----Original Message-----
From: Corinna Vinschen [mailto:corinna-cygwin AT cygwin DOT com]=20
Sent: Monday, December 28, 2009 7:24 PM
To: cygwin AT cygwin DOT com
Subject: Re: Cygwin 1.7.1-1 - problem with non-blocking socket IO

On Dec 28 10:03, Uri Simchoni wrote:
> Hi,
>=20
> I seem to have a problem with non-blocking writes to TCP sockets and unix=
-domain sockets - they block.
>=20
> The attached program illustrates it - it creates a socketpair(), sets one=
 end to non-blocking and writes to it - expecting to get an EWOULDBLOCK. On=
 my system it hangs.
>=20
> With pipe() it works fine.
>=20
> Please advise.

First of all, thanks for the testcase!  I could reproduce the problem
easily and after some serious headscratching it turned out to be a
really miserable typo which I just didn't see earlier due to the usage
of a C++ parameter default.  I've applied a patch in CVS.  This will be
fixed in 1.7.2.


Thanks again,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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