Re: [Gnu-arch-users] arch_inventory_traversal

[Florian Weimer]

Tom Lord wrote:

> There certainly are things that can happen that will change the
> inventory between calls to arch_inventory_traversal.   In other words,
> the _wrong_ change to make would be to modify arch_inventory_traversal
> to simply cache its results between calls.

If tla is hard-link safe, any change updates the mtime of a directory.
Therefore, it is sufficient to have a list of directory signatures to
check which directories have been updated and must be rescanned.

(You need a bit of fiddling to cope with the limited timestamp
resolution, but it's doable.)