Date: Thu, 30 Apr 2009 15:50:16 +0200
From: Max Kellermann <max@duempel.org>
To: Vegard Nossum <vegard.nossum@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [splice PATCH 3/3] splice: added support for pipe-to-pipe
	splice()
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On 2009/04/30 15:35, Vegard Nossum <vegard.nossum@gmail.com> wrote:
> What happens if you splice two pipes, in separate threads, to each
> other? :-)

As a demonstration, here's an experiment with older technology, when
pipes were still made of wood (pre-splice):

 mkfifo /tmp/foo
 cat /tmp/foo >/tmp/foo

You may launch the real thing now with a simple

 echo Hello World >tmp/foo

Warning: with only one pipe, you're likely to bend the pipe too far,
and it may break (SIGPIPE).

Max
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