Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm 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 To: cygwin@cygwin.com From: Eric Melski Subject: Re: ctime: creation or change time? Date: Thu, 03 Mar 2005 15:50:56 -0800 Lines: 29 Message-ID: References: <1109798389.42262df5e7c1d@webmail.namezero.com> <20050303113059.GC2839@cygbert.vinschen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: nat.electric-cloud.com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040913 In-Reply-To: <20050303113059.GC2839@cygbert.vinschen.de> X-Gmane-MailScanner: Found to be clean X-Gmane-MailScanner: Found to be clean X-MailScanner-From: goc-cygwin@m.gmane.org X-MailScanner-To: cygwin@cygwin.com X-IsSubscribed: yes Note-from-DJ: This may be spam Corinna Vinschen wrote: > On Mar 2 13:19, eric@melski.net wrote: > >>In fact, NTFS has no notion of file change time as described in POSIX. Is there >>any chance of undoing this change? An alternative solution might be to simply >>use the NTFS file modify time for both the mtime and ctime of the file, since >>those two are almost always updated together anyway. > > > Well, we're trying to be POSIX like, so that's nothing we're going to > revert. I guess we're using ctime as change time even more in future. I understand that you're trying to be POSIX-like, but I wonder if doing so at the cost of compatibility with the host OS is wise. To be sure, the implementation you have chosen will break some Windows applications. It seems to me that ultimately you are emulating POSIX-like behavior on top of what is fundamentally NOT a POSIX-like system. If that is so, then why not use a different implementation that is sure not to break existing non-Cygwin Windows applications? The proposal I made previously (report Windows modify time as both Cygwin mtime and ctime) would give Cygwin applications a reasonable approximation of ctime in the POSIX sense, while retaining a correct value of creation time for Windows applications. Thanks, Eric Melski -- 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/