advice for tailing a file

[Daniel Carosone]

What platform? Linux::Inotify2 and related modules might be a useful
option, especially if the log file is not heavily active.
On 15 Dec 2015 6:20 a.m., "Scott Wiersdorf" <scott at ipartner.net> wrote:

> On Mon, Dec 14, 2015 at 10:32:26AM -0700, Scott Wiersdorf wrote:
> > I'm pretty sure now that File::Tail won't work for me since I will
> > need to be doing things every n seconds and I can't be blocking on
> > disk I/O.
>
> My mistake: it looks like File::Tail supports a 'nowait' option, so
> now I can set a recurring AE timer and go into a loop to read the IO:
>
>     my $tail = File::Tail->new(name => $f, nowait => 1, ...);
>
>     my $timer = AE::timer ...
>
>     while(1) {
>         if (my $line = $tail->read) {
>             ## do something with line
>         }
>
>         EV::run EV::RUN_ONCE;
>     }
>
> Does this seem sane? It appears to be working, but I don't know if
> there lurk any gotchas.
>
> Scott
> --
> Scott Wiersdorf
> <scott at perlcode.org>
>
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