[GRASS5] mkfifo start for cygwin

[John Huddleston]

Markus,  (Cc to grass)

I went through some of the older Cygwin messages and 
found an email note from  someone was thinking of using
Cygwin on his NT box for development.  He states that
there was no reply from anyone and he has subsequently 
moved to Linux.  Included below is his reply to me with
a URL to his source code.   I sent this earlier to Mike and
Andreas but realized (with Malcom's email) that we all
would be interested in this information.

I downloaded the code from http://herzberg.ca.sandia.gov/namedpipes
and it compiled cleanly.  There is a mkfifo.cc file used by two
standalone executables.

John Huddleston

----- Original Message ----- 
From: "friedman_hill ernest j" <ejfried at california.sandia.gov>
To: "John Huddleston" <jhudd at lamar.colostate.edu>
Sent: Thursday, December 14, 2000 6:22 AM
Subject: Re: named pipes


> 
> 
> Nope, haven't touched it in ages. After finally getting permission
> from Sandia to contribute to Cygwin, I sent cgf a message asking for
> advice, and never received a reply. In the intervening time I ditched
> my Win32 box and moved entirely to Linux.
> 
> My first baby steps towards an implementation are available at
> http://herzberg.ca.sandia.gov/namedpipes. winsup* just duplicate some
> of the cygwin kernel in "user space" for development purposes. The
> major unresolved question is how to keep track of how many readers and
> writers a pipe has. I don't understand Cygwin internals well enough to
> know if my code could be notified when a Cygwin process exits, or if
> it would have to scan the process list on every read or write call
> (which would almost certainly be too expensive.)
> 
> 
> 
> I think John Huddleston wrote:
> [Charset iso-8859-1 unsupported, filtering to ASCII...]
> > Ernest,
> > 
> > Have you implemented a named pipe solution for cygwin?
> > If so, would you mind sending me the source?
> > 
> > Thank you,
> > 
> > John Huddleston
> > PhD Student
> > Colorado State University
> > 
> 
> 
> 
> ---------------------------------------------------------
> Ernest Friedman-Hill  
> Distributed Systems Research        Phone: (925) 294-2154
> Sandia National Labs                FAX:   (925) 294-2234
> Org. 8920, MS 9012                  ejfried at ca.sandia.gov
> PO Box 969                  http://herzberg.ca.sandia.gov
> Livermore, CA 94550



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