[erlang-questions] Best way to check if a given directory is empty (or not)?
Wed Mar 14 09:07:59 CET 2012
Yes and no.
When testing Taavi's solution on OSX, the "link_count" takes into account both files and subdirs.
But on Linux, it only counts subdirs.
On Mar 13, 2012, at 11:26 PM, Taavi Talvik wrote:
> On Mar 13, 2012, at 11:59 PM, Richard O'Keefe wrote:
>>> On unix systems link_count=2 means, that directory is empty:
>> No it doesn't. It means that the directory has no *subdirectories*.
> Mental note to myself - verify before posting;)
> Sorry for confusion!
> Yes - thats correct. Link count > 2 means, that there are subdirectories.
> (On unix, mac os x behaves differently).
> Richard's opendir/readir C code is only reasonably portable way.
> Similar implementation for windows with _findfirst/_findnext is at
> C-code and port/NIF are way to go.
> best regards,
> "We should forget about small efficiencies, about 97 percent of the time.
> Premature optimization is the root of all evil." Donald Knuth
> Taavi Talvik
> +372 5656 9996
> erlang-questions mailing list
More information about the erlang-questions