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Message-ID:	<000501c0b3e9$7fa3d890$0200a8c0@lifelesswks>
From:	"Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To:	"Egor Duda" <cygwin-developers AT cygwin DOT com>
Cc:	<cygwin-developers AT cygwin DOT com>
References:	<001b01c0b397$2d1ca720$0200a8c0 AT lifelesswks> <1783665564 DOT 20010323155742 AT logos-m DOT ru>
Subject:	Re: setup will have to wait :[
Date:	Sat, 24 Mar 2001 09:34:59 +1100
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----- Original Message -----
From: "Egor Duda" <deo AT LOGOS-M DOT RU>
To: "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
Cc: <cygwin-developers AT cygwin DOT com>
Sent: Friday, March 23, 2001 11:57 PM
Subject: Re: setup will have to wait :[


> Hi!
>
> Friday, 23 March, 2001 Robert Collins robert DOT collins AT itdomain DOT com DOT au
wrote:
>
>
> RC> For data transfer, I was thinking of using shared named
memory:anyone
> RC> know of caveats for that on win9x?
>
> 1. it won't work with non-cygwin apps.
> 2. the biggest problem with fifo is that there can be several readers
> and several writers. and i don't know how to implement the following
> thing: when all writers die all readers should receive eof. and it
> should work even if writers haven't had a chance to exit gracefully,
> but was killed from taskmanager, for example. Similarly, when all
> readers die, writers should unblock with EPIPE.

1. Do "non-unix" apps understand the concept of a FIFO file? I know that
cygwin already has named pipe support so is there any reason to try and
make FIFO support interoperate (and what should it appear as?)

2. Do you have a reference? So far I've found lots of sys/stat.h header
files :].  If you don't are writes and reads atomic? Do all readers
recieve all the same data from each writer - or do they pair off? (That
sounds rather dirty I know :])

Rob

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