X-Recipient: archive-cygwin@delorie.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: <4B59D7E6.2020805@byu.net> Date: Fri, 22 Jan 2010 09:52:54 -0700 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@cygwin.com Subject: Re: futimes? References: <1264178911.15440.1356055743@webmail.messagingengine.com> In-Reply-To: <1264178911.15440.1356055743@webmail.messagingengine.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig8F545A39F42CFE06A5187C06" X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: 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 --------------enig8F545A39F42CFE06A5187C06 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable According to Charles Wilson on 1/22/2010 9:48 AM: > I noticed this change when reviewing libarchive development: >=20 > "Windows resets atime at file close, so we can't use futimes() on > Cygwin." > http://code.google.com/p/libarchive/source/detail?r=3D1832 >=20 > Is that the expected behavior? I thought cygwin-(1.7?) took special care > to go back and "fix up" this problem during close()... In fact, cygwin goes to great lengths to work around this bug in the MVFS file system (that is, duplicate the handle, set atime on the duplicate, close it to force a flush to disk, then set atime on the original). Which file system was the libarchive bug reported on? Maybe we need to reuse the MVFS hack on other file systems. But my experience has been that futimes works correctly on NTFS. --=20 Don't work too hard, make some time for fun as well! Eric Blake ebb9@byu.net --------------enig8F545A39F42CFE06A5187C06 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----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/ iEYEARECAAYFAktZ1+sACgkQ84KuGfSFAYDKwgCePMalY1DRcJ+JRjCEQJcxokGs StgAn3w+qCCzZNI1mFN/k44a5faj00F8 =pLZp -----END PGP SIGNATURE----- --------------enig8F545A39F42CFE06A5187C06--