delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2012/06/29/03:24:14

X-Recipient: archive-cygwin AT delorie DOT com
X-Spam-Check-By: sourceware.org
Date: Fri, 29 Jun 2012 09:23:19 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: /dev/clipboard corrupted
Message-ID: <20120629072319.GA30342@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <4FEB863A DOT 7030108 AT towo DOT net> <20120628082021 DOT GF17071 AT calimero DOT vinschen DOT de> <4FECA35E DOT 7060302 AT towo DOT net>
MIME-Version: 1.0
In-Reply-To: <4FECA35E.7060302@towo.net>
User-Agent: Mutt/1.5.21 (2010-09-15)
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

On Jun 28 20:33, Thomas Wolff wrote:
> Am 28.06.2012 10:20, schrieb Corinna Vinschen:
> >On Jun 28 00:16, Thomas Wolff wrote:
> >>If the clipboard contains large data, the contents retrieved from
> >>/dev/clipboard gets corrupted.
> >>I compared the following in a few cases:
> >>* cat /dev/clipboard or cp /dev/clipboard (which are equal)
> >>* mouse-paste into mintty, read with cat
> >>* read /dev/clipboard within application
> >>
> >>and I found all three results to be different, the correct one
> >>sometimes being cat /dev/clipboard but not always.
> >>In today's case, the differences occured at byte 10240 and 65536
> >>respectively, thus 10K-1 bytes or 64K-1 bytes being equal.
> >I can't reprocude this.  There's also nothing in the /dev/clipboard
> >code which would rely on a 10K buffer or so.  64K, yes.  But still,
> >I tried with wordpad, vi, mintty, cat, and cp with a text file of
> >about 90K.  No problems.  Do you have any reproducible testcase?
> Not really reproducible (maybe later) but some more observations.
> I made a small test program to read /dev/clipboard directly with
> different buffer sizes.

You know, we just love STCs.  Send you small test program here, plus a
short instruction how you created the clipboard content and how to call
the testcase to see the problem.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019