I was wondering if there are ways to test whether a file is open by another process under Darwin (and by extension Mac OS X)? I have been testing out methods that use the functions: -- flock() -- lockf() -- fcntl() and Carbon methods that look at a catalog's nodeFlags against the kFSNodeLockedMask constant. None of these seem to return any positive indication that a file is open elsewhere in the OS. I was also curious about whether there is a way to determine if a volume is busy. There is a DiskImages framework that man pages for hdiutil hint at, but this framework appears to be private and so I don't know how to call any functions it might use to return whether this condition is true or not. Has anyone run into this sort of thing before and found a solution? Thanks, Alex _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.