# Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
-# only for PublicInbox::Daemon
+
+# only for PublicInbox::Daemon, allows worker processes to be
+# notified if the master process dies.
package PublicInbox::ParentPipe;
use strict;
use warnings;
use base qw(PublicInbox::DS);
use fields qw(cb);
+use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
sub new ($$$) {
- my ($class, $pipe, $cb) = @_;
+ my ($class, $pipe, $worker_quit) = @_;
my $self = fields::new($class);
- $self->SUPER::new($pipe);
- $self->{cb} = $cb;
- $self->watch_read(1);
+ $self->SUPER::new($pipe, EPOLLIN|EPOLLONESHOT);
+ $self->{cb} = $worker_quit;
$self;
}
-sub event_read { $_[0]->{cb}->($_[0]) }
+# master process died, time to call worker_quit ourselves
+sub event_step {
+ $_[0]->close; # PublicInbox::DS::close
+ $_[0]->{cb}->();
+}
1;