On May 28, 2010, at 12:05 PM, Antonio Nunes wrote: > My app is set to observe a folder for changes to its contents (...) I get the > impression the notification happens as soon as the file transfer into the > watched directory begins, and my worker thread is ready and starts loading > the file before it has been fully transferred. Hence the failure to create a > PDFDocument from the file.
Yes. A KQueue only tells you when a *change* happens, i.e. an individual write operation. > Is there a way to check whether the file has been fully transferred, or, even > better, to get notified only when the file transfer has been completed? The heuristic most people use is to wait a little time (a few seconds is usually enough) and only start processing a file if a new write notification hasn't arrived in the meantime. I usually use my UKPushbackMessenger for that purpose (see http://github.com/uliwitness/UliKit/blob/master/UKPushbackMessenger.h and http://github.com/uliwitness/UliKit/blob/master/UKPushbackMessenger.m). -- Uli Kusterer "The Witnesses of TeachText are everywhere..." _______________________________________________ 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
