1 # Copyright (C) 2020 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # Used by public-inbox-watch for Maildir (and possibly MH in the future)
5 package PublicInbox::DirIdle;
7 use base 'PublicInbox::DS';
9 use PublicInbox::Syscall qw(EPOLLIN EPOLLET);
10 use PublicInbox::In2Tie;
12 my ($MAIL_IN, $ino_cls);
13 if ($^O eq 'linux' && eval { require Linux::Inotify2; 1 }) {
14 $MAIL_IN = Linux::Inotify2::IN_MOVED_TO() |
15 Linux::Inotify2::IN_CREATE();
16 $ino_cls = 'Linux::Inotify2';
17 } elsif (eval { require PublicInbox::KQNotify }) {
18 $MAIL_IN = PublicInbox::KQNotify::MOVED_TO_OR_CREATE();
19 $ino_cls = 'PublicInbox::KQNotify';
21 require PublicInbox::FakeInotify;
22 $MAIL_IN = PublicInbox::FakeInotify::MOVED_TO_OR_CREATE();
26 my ($class, $dirs, $cb) = @_;
27 my $self = fields::new($class);
30 $inot = $ino_cls->new or die "E: $ino_cls->new: $!";
31 my $io = PublicInbox::In2Tie::io($inot);
32 $self->SUPER::new($io, EPOLLIN | EPOLLET);
34 require PublicInbox::FakeInotify;
35 $inot = PublicInbox::FakeInotify->new; # starts timer
38 # Linux::Inotify2->watch or similar
39 $inot->watch($_, $MAIL_IN, $cb) for @$dirs;
40 $self->{inot} = $inot;
46 eval { $self->{inot}->poll }; # Linux::Inotify2::poll
47 warn "$self->{inot}->poll err: $@\n" if $@;