X-Spam-Check-By: sourceware.org Date: Fri, 1 Sep 2006 14:00:41 -0400 From: Christopher Faylor To: cygwin@cygwin.com Subject: Re: cygwin fork() Message-ID: <20060901180041.GA11672@trixie.casa.cgf.cx> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <20060901174713.GE30633@ns1.anodized.com> <004b01c6cdf0$0c657a60$a501a8c0@CAM.ARTIMI.COM> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <004b01c6cdf0$0c657a60$a501a8c0@CAM.ARTIMI.COM> User-Agent: Mutt/1.5.11 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Fri, Sep 01, 2006 at 06:57:10PM +0100, Dave Korn wrote: >On 01 September 2006 18:47, clayne@anodized.HIPPO wrote: >>I found the real culprit, which I had also ifdef'd out because it looked >>bogus and crufty: >> >>/* Return 1 if a seek on FD will succeed. */ >>#ifndef __CYGWIN__ >># define fd_is_seekable(fd) (lseek ((fd), 0L, SEEK_CUR) >= 0) >>#else >># define fd_is_seekable(fd) 0 >>#endif /* __CYGWIN__ */ > >Yeeesh. This is a terrible way of dealing with the fact that you can't >seek a stream accurately if you open it in text mode, because of the >ambiguity about whether you've advanced one or two chars through the >underlying file when you see an LF that could perhaps have actually >been a CR/LF. What we really want is AFAIK, Cygwin's lseek should handle seeking on text streams. DJ implemented that years ago. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/