lib/PublicInbox/ParentPipe.pm

   1 # Copyright (C) 2016-2019 all contributors <meta@public-inbox.org>
   2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
   3
   4 # only for PublicInbox::Daemon, allows worker processes to be
   5 # notified if the master process dies.
   6 package PublicInbox::ParentPipe;
   7 use strict;
   8 use warnings;
   9 use base qw(PublicInbox::DS);
  10 use fields qw(cb);
  11 use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
  12
  13 sub new ($$$) {
  14         my ($class, $pipe, $worker_quit) = @_;
  15         my $self = fields::new($class);
  16         $self->SUPER::new($pipe, EPOLLIN|EPOLLONESHOT);
  17         $self->{cb} = $worker_quit;
  18         $self;
  19 }
  20
  21 # master process died, time to call worker_quit ourselves
  22 sub event_step {
  23         $_[0]->close; # PublicInbox::DS::close
  24         $_[0]->{cb}->();
  25 }
  26
  27 1;