X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-2.0 required=5.0 tests=AWL,BAYES_00,SPF_SOFTFAIL X-Spam-Check-By: sourceware.org Message-ID: <4ACDD5C2.9010104@byu.net> Date: Thu, 08 Oct 2009 06:06:26 -0600 From: Eric Blake User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.23) Gecko/20090812 Thunderbird/2.0.0.23 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: atime on symlinks Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: 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 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I've been trying to use lutimes and utimensat(,AT_SYMLINK_NOFOLLOW) to play with symlink timestamps. mtime can be modified just fine, but atime changes are lost the moment you lstat() the symlink again (probably because path.cc opens the symlink file during path resolution to read its contents and confirm it is a symlink). POSIX states that readlink() changes the atime of a symlink, but not lstat(). Is there a way to make path.cc resolution behave as if O_NOATIME were in effect for symlink resolution, so that lstat() and path resolution leaves symlink times alone, and only an explicit readlink() or lutimes() will adjust atime on symlinks? - -- Don't work too hard, make some time for fun as well! Eric Blake ebb9 AT byu DOT net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkrN1cIACgkQ84KuGfSFAYCvagCfdeKSVpvlPAHuoWTzimk34ORf Xt8Ani12FtnptVZZLwoAtb2mH9o745g/ =MO7c -----END PGP SIGNATURE----- -- 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