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| | # Copyright (C) 2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
package PublicInbox::InboxIdle;
use strict;
use base qw(PublicInbox::DS);
use fields qw(pi_config inot);
use Symbol qw(gensym);
use PublicInbox::Syscall qw(EPOLLIN EPOLLET);
my $IN_CLOSE = 0x08 | 0x10; # match Linux inotify
my $ino_cls;
if ($^O eq 'linux' && eval { require Linux::Inotify2; 1 }) {
$IN_CLOSE = Linux::Inotify2::IN_CLOSE();
$ino_cls = 'Linux::Inotify2';
} elsif (eval { require PublicInbox::KQNotify }) {
$IN_CLOSE = PublicInbox::KQNotify::IN_CLOSE();
$ino_cls = 'PublicInbox::KQNotify';
}
require PublicInbox::In2Tie if $ino_cls;
sub in2_arm ($$) { # PublicInbox::Config::each_inbox callback
my ($ibx, $inot) = @_;
my $path = "$ibx->{inboxdir}/";
$path .= $ibx->version >= 2 ? 'inbox.lock' : 'ssoma.lock';
$inot->watch($path, $IN_CLOSE, sub { $ibx->on_unlock });
# TODO: detect deleted packs (and possibly other files)
}
sub new {
my ($class, $pi_config) = @_;
my $self = fields::new($class);
my $inot;
if ($ino_cls) {
$inot = $ino_cls->new or die "E: $ino_cls->new: $!";
my $sock = gensym;
tie *$sock, 'PublicInbox::In2Tie', $inot;
$inot->blocking(0);
$inot->on_overflow(undef); # broadcasts everything on overflow
$self->SUPER::new($sock, EPOLLIN | EPOLLET);
} else {
require PublicInbox::FakeInotify;
$inot = PublicInbox::FakeInotify->new;
}
$self->{inot} = $inot;
$pi_config->each_inbox(\&in2_arm, $inot);
$self;
}
sub event_step {
my ($self) = @_;
eval { $self->{inot}->poll }; # Linux::Inotify2::poll
warn "$self->{inot}->poll err: $@\n" if $@;
}
1;
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