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Date: Thu, 12 Feb 2015 18:03:42 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Writing to /dev/clipboard from multiple processes in Bash gives inconsistent behaviour
Message-ID: <20150212170342.GB7818@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
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References: <20150212134550 DOT GC20741 AT dinwoodie DOT org>
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On Feb 12 13:45, Adam Dinwoodie wrote:
> I've spotted some slightly odd behaviour when writing things from
> multiple processes to /dev/clipboard.
>=20
> Easiest to show this with an example:
>=20
>     for n in {1..10}; do echo $n; done >/dev/clipboard; cat /dev/clipboard
>=20
> I expect this to print out the numbers 1=E2=80=9310 to the terminal.  Som=
etimes
> it does, but sometimes it misses out some of the numbers at the end;
> printing the digits 1=E2=80=938, say, but no more.  Generally it gets to =
around
> 7=E2=80=939, but I've seen it managing to only get up to 3 on one occasio=
n.

I can't reproduce this.  First I tried this manually a couple of times,
but then I created a loop:

  for i in {1..1000}
  do
    echo > /dev/clipboard
    for n in {1..10}; do echo $n; done > /dev/clipboard
    grep -q 10 /dev/clipboard || cat /dev/clipboard
  done

and it didn't fail once.  I'm not sure what to do if I don't have a
reproducible testcase...


Corinna

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

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