> 7,500 file operations of any kind are going to take some time, even just > creating hard links. Does it require 40 seconds? Well, I don't know. But I do > seriously doubt that it could be done in 1 second. > > You might try it out yourself, write test code to create a new package, walk > through your package, and create hard links in the new to the old. If that > takes too long, then you're done, you can't do incremental save this way. (And > of course, if it's fast enough, then continue on this course and try to figure > out how to make it happen that way.) > > It just seems to me that 7,500 files is bordering on being a database of > images, and calls for the typical database techniques. In other words, write > new image files into a temp location within the package, write a log of > changes about to happen, apply the changes (move the new files into place), > and delete the log. Then your recovery code checks for a log, if it's there > move any files still in the temp location into their proper final location, > and delete the log.
It is essentially a database of images. How can I override the various NSDocument methods so that I can write the changes/updates myself in a temp place within my own package (which makes it safe). There is just no reason to touch the other 7500 files at all. _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
