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author | Eric Wong <e@80x24.org> | 2019-06-28 18:46:10 +0000 |
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committer | Eric Wong <e@80x24.org> | 2019-06-29 19:59:00 +0000 |
commit | 7344d5bb292a29b52b574dfb09542e3290430afd (patch) | |
tree | 76bb5eb8b721f1122345f9443ad76f9b06509308 | |
parent | eaa0a245e3e1da46ab6b3a8e0025883b0011fa07 (diff) | |
download | public-inbox-7344d5bb292a29b52b574dfb09542e3290430afd.tar.gz |
The master process only dies once and we close ourselves right away. So it doesn't matter if it's level-triggered or edge-triggered, actually, but one-shot is most consistent with our use and keeps the kernel from doing extra work.
-rw-r--r-- | lib/PublicInbox/ParentPipe.pm | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/PublicInbox/ParentPipe.pm b/lib/PublicInbox/ParentPipe.pm index ccc0815e..6ef51c1a 100644 --- a/lib/PublicInbox/ParentPipe.pm +++ b/lib/PublicInbox/ParentPipe.pm @@ -1,20 +1,24 @@ # 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, PublicInbox::DS::EPOLLIN()); - $self->{cb} = $cb; + $self->SUPER::new($pipe, EPOLLIN|EPOLLONESHOT); + $self->{cb} = $worker_quit; $self; } +# master process died, time to call worker_quit ourselves sub event_step { $_[0]->{cb}->($_[0]) } 1; |