X-Recipient: archive-cygwin AT delorie DOT com X-Spam-Check-By: sourceware.org Date: Mon, 13 Sep 2010 00:12:26 -0400 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: {lp,cb}Reserved2 under Windows 7 and file descriptors Message-ID: <20100913041226.GA18909@ednor.casa.cgf.cx> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <000801cb2383$9c3ad3a0$d4b07ae0$@gmail.com> <20100714184922 DOT GA13548 AT ednor DOT casa DOT cgf DOT cx> <001001cb23a5$3a879090$af96b1b0$@gmail.com> <20100912224108 DOT GA18097 AT ednor DOT casa DOT cgf DOT cx> <4C8D5A50 DOT 2020900 AT gmail DOT com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C8D5A50.2020900@gmail.com> User-Agent: Mutt/1.5.20 (2009-06-14) Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com On Sun, Sep 12, 2010 at 03:55:12PM -0700, Daniel Colascione wrote: >On 9/12/10 3:41 PM, Christopher Faylor wrote: >> So this wasn't just an idea which went unimplemented waiting for tuits. >> It went unimplemented because I thought it was a bad idea. > >It is a lie, but it's also a distinction without a difference. What >kind of misbehavior could we expect to be caused by lying to a program >this way? Most programs that care to use console-specific functionality >will test for a console by using GetFileType() or just get the console >by opening "CONIN$". It would be very unusual to make decisions about >win32-level functionality based on a call to the C runtime file >descriptor library. No. It wouldn't. >Furthermore, in the rare instance that a program *does* misbehave, by >simply running "cat | program", we restore the old behavior. > >The one case I can see that might be a problem is the >"Console and Port I/O" family of functions, at >http://msdn.microsoft.com/en-us/library/7x2hy4cx.aspx. Those are what I was thinking of actually. I'm not going to keep looping on this argument, making the same points over and over. I'm not willing to add this particular functionality to Cygwin. cgf -- 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