attr

The path’s status before the change that triggered the callback, as stat returns it. The same method has two other names:

Also available as EV::Stat::prev, EV::Stat::stat.

• $w->attr - the status that triggered the change, as EV last saw it; the difference from prev is what changed.

• $w->stat - stat the path now (with lstat), store that as what EV last saw (so it does not report a change you made yourself), and return it.

In list context each returns the 13 values stat does (the block size and block count are estimates), or an empty list when the path does not exist; in scalar context, whether it exists. All three also fill Perl’s stat cache, for -X _ tests, and a missing path sets $! to ENOENT.