Mailing-List: contact cygwin-developers-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-developers-subscribe AT sources DOT redhat DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin-developers/>
List-Post: <mailto:cygwin-developers AT sources DOT redhat DOT com>
List-Help: <mailto:cygwin-developers-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-developers-owner AT sources DOT redhat DOT com
Delivered-To: mailing list cygwin-developers AT sources DOT redhat DOT com
Subject: RE: fifos and named pipes
Date: Wed, 28 Mar 2001 10:46:43 +1000
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Message-ID: <EA18B9FA0FE4194AA2B4CDB91F73C0EF02E2B4@itdomain002.itdomain.net.au>
content-class: urn:content-classes:message
X-MimeOLE: Produced By Microsoft Exchange V6.0.4417.0
Thread-Topic: fifos and named pipes
Thread-Index: AcC3HaHjWr2fpkNVQViJV2zdg/zVbgAAJ3HwAACLl1A=
From: "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To: "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>,
        <cygwin-developers AT cygwin DOT com>
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id TAA28320


> -----Original Message-----
> From: Robert Collins 
> Sent: Wednesday, March 28, 2001 10:33 AM
> To: cygwin-developers AT cygwin DOT com
> Subject: RE: fifos and named pipes
> 
> 
>  
> 
> > -----Original Message-----
> > From: Christopher Faylor [mailto:cgf AT redhat DOT com]
> > Sent: Wednesday, March 28, 2001 10:20 AM
> > To: cygwin-developers AT cygwin DOT com
> > Subject: Re: fifos and named pipes
> > 
> > 
> > On Wed, Mar 28, 2001 at 09:06:14AM +1000, Robert Collins wrote:
> > >Just thought you'd like to know: named pipes under win32 
> (which I was
> > >considering using for the NT implementations) don't have the same
> > >semantics as under openBSD.... so I'm going with my roll-your-own
> > >approach .
> > 
> > What about regular pipes?  I suggested that you could just use those
> > along with some glue to duplicate handles between processes.
> 
> I haven't tested anonymous pipes yet. Even if I do use those, 
> I need the
> glue to identify what pipes are available first - that's what 
> I'm on now
> (step 3 of 5). I plan to look at that once I've got a rough-and-ready
> implementation going. 
>  

Speaking of the glue to see what pipe are available: can I use the
cygwin shared memory area? any caveats/must dos/must not dos with doing
that? 

Rob