Hi Ken, thanks, I have read those lines on the man. But where are these Carbon APIs setting the Attribute Date? I tried FSSetCatalogInfo with kFSCatInfoAttrMod and it didn't work. I ended up with an attribute date equal to the current time (when I called the API), not the date I wanted to set.
On the man page "getattrlist" http://developer.apple.com/mac/library/documentation/Darwin/Reference/ManPag es/10.5/man2/getattrlist.2.html?useVersion=10.5 is clearly written that the ATTR_CMN_CHGTIME flag is read/write, so I should be able to set it. But I can't really. And setattrlist returns 0, as everything has been set well, while it has been not. Furthermore, on the man page "setattrlist" http://developer.apple.com/mac/library/documentation/Darwin/Reference/ManPag es/10.5/man2/setattrlist.2.html?useVersion=10.5 is written "You must own the file system object in order to set any of the following attributes:" ATTR_CMN_GRPID, ATTR_CMN_ACCESSMASK, ATTR_CMN_FLAGS, ATTR_CMN_CRTIME, ATTR_CMN_MODTIME, ATTR_CMN_CHGTIME, ATTR_CMN_ACCTIME I don't know whether I own this "file system object". I don't even know what's that and how should I own it, but for sure, I can quite set the ATTR_CMN_CRTIME and the ATTR_CMN_MODTIME, so I presume I own this "file system object". Any idea? -- Leonardo > Da: Ken Thomases <k...@codeweavers.com> > Data: Mon, 22 Mar 2010 03:35:52 -0500 > A: "gMail.com" <mac.iphone....@gmail.com> > Cc: <cocoa-dev@lists.apple.com> > Oggetto: Re: ATTR_CMN_CHGTIME > > On Mar 21, 2010, at 6:01 PM, gMail.com wrote: > >> Also, the man says that getattrlist and setattrlist don't work on all the >> volumes. So, how can I know whether I can call these APIs? > > The man page for getattrlist says: > >> The best way to test whether a volume supports this function is to simply >> call it and check the error result. getattrlist() will return ENOTSUP if it >> is not supported on a particular volume. > > The man page for setattrlist says: > >> Not all volumes support setattrlist(). However, if a volume supports >> getattrlist(2), it must also support setattrlist(). See the documentation >> for getattrlist(2) for details on how to tell whether a volume supports it. > > It also says: > >> The functions are only supported by certain volume format implementations. >> For maximum compatibility, client programs should use high-level APIs (such >> as the Carbon File Manager) to access file system attributes. These >> high-level APIs include logic to emulate file system attributes on volumes >> that don't support setattrlist() and fsetattrlist(). > > Cheers, > Ken > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
