-# Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2019 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
-# event cleanups (currently for PublicInbox::DS)
+# event cleanups (for PublicInbox::DS)
package PublicInbox::EvCleanup;
use strict;
use warnings;
-use base qw(PublicInbox::DS);
-use PublicInbox::Syscall qw(EPOLLOUT EPOLLONESHOT);
+require PublicInbox::DS;
+# this only runs under public-inbox-{httpd/nntpd}, not generic PSGI servers
my $ENABLED;
sub enabled { $ENABLED }
sub enable { $ENABLED = 1 }
-my $singleton;
-my $asapq = [ [], undef ];
-my $nextq = [ [], undef ];
my $laterq = [ [], undef ];
-sub once_init () {
- my $self = fields::new('PublicInbox::EvCleanup');
- my ($r, $w);
-
- # This is a dummy pipe which is always writable so it can always
- # fires in the next event loop iteration.
- pipe($r, $w) or die "pipe: $!";
- fcntl($w, 1031, 4096) if $^O eq 'linux'; # 1031: F_SETPIPE_SZ
- $self->SUPER::new($w, 0);
-
- # always writable, since PublicInbox::EvCleanup::event_step
- # never drains wbuf. We can avoid wasting a hash slot by
- # stuffing the read-end of the pipe into the never-to-be-touched
- # wbuf
- $self->{wbuf} = $r;
- $self;
-}
-
-sub _run_all ($) {
- my ($q) = @_;
-
- my $run = $q->[0];
- $q->[0] = [];
- $q->[1] = undef;
- $_->() foreach @$run;
-}
-
-# ensure PublicInbox::DS::ToClose processing after timers fire
-sub _asap_close () { $asapq->[1] ||= _asap_timer() }
-
-# Called by PublicInbox::DS
-sub event_step { _run_all($asapq) }
-
-sub _run_next () {
- _run_all($nextq);
- _asap_close();
-}
-
sub _run_later () {
- _run_all($laterq);
- _asap_close();
-}
-
-sub _asap_timer () {
- $singleton ||= once_init();
- $singleton->watch(EPOLLOUT|EPOLLONESHOT);
- 1;
-}
-
-sub asap ($) {
- my ($cb) = @_;
- push @{$asapq->[0]}, $cb;
- $asapq->[1] ||= _asap_timer();
-}
-
-sub next_tick ($) {
- my ($cb) = @_;
- push @{$nextq->[0]}, $cb;
- $nextq->[1] ||= PublicInbox::DS->AddTimer(0, *_run_next);
+ my $run = $laterq->[0];
+ $laterq->[0] = [];
+ $laterq->[1] = undef;
+ $_->() foreach @$run;
}
sub later ($) {
$laterq->[1] ||= PublicInbox::DS->AddTimer(60, *_run_later);
}
-END {
- event_step();
- _run_all($nextq);
- _run_all($laterq);
-}
-
+END { _run_later() }
1;