ds: simplify signalfd use

Since signalfd is often combined with our event loop, give it a
convenient API and reduce the code duplication required to use it.

EventLoop is replaced with ::event_loop to allow consistent
parameter passing and avoid needlessly passing the package name
on stack.

We also avoid exporting SFD_NONBLOCK since it's the only flag we
support.  There's no sense in having the memory overhead of a
constant function when it's in cold code.

1 files changed, 2 insertions, 12 deletions

diff --git a/lib/PublicInbox/Daemon.pm b/lib/PublicInbox/Daemon.pm
index 24dc7791..5be474fa 100644
--- a/lib/PublicInbox/Daemon.pm
+++ b/lib/PublicInbox/Daemon.pm
@@ -15,7 +15,6 @@ use Socket qw(IPPROTO_TCP SOL_SOCKET);
 STDOUT->autoflush(1);
 STDERR->autoflush(1);
 use PublicInbox::DS qw(now);
-use PublicInbox::Syscall qw(SFD_NONBLOCK);
 require PublicInbox::Listener;
 use PublicInbox::EOFpipe;
 use PublicInbox::Sigfd;
@@ -513,7 +512,7 @@ EOF
                 },
                 CHLD => \&reap_children,
         };
-        my $sigfd = PublicInbox::Sigfd->new($sig, 0);
+        my $sigfd = PublicInbox::Sigfd->new($sig);
         local @SIG{keys %$sig} = values(%$sig) unless $sigfd;
         PublicInbox::DS::sig_setmask($oldset) if !$sigfd;
         while (1) { # main loop
@@ -630,20 +629,11 @@ sub daemon_loop ($$$$) {
                 # this calls epoll_create:
                 PublicInbox::Listener->new($_, $tls_cb || $post_accept)
         } @listeners;
-        my $sigfd = PublicInbox::Sigfd->new($sig, SFD_NONBLOCK);
-        local @SIG{keys %$sig} = values(%$sig) unless $sigfd;
-        if (!$sigfd) {
-                # wake up every second to accept signals if we don't
-                # have signalfd or IO::KQueue:
-                PublicInbox::DS::sig_setmask($oldset);
-                PublicInbox::DS->SetLoopTimeout(1000);
-        }
-        PublicInbox::DS->EventLoop;
+        PublicInbox::DS::event_loop($sig, $oldset);
 }
 
 sub run ($$$;$) {
         my ($default, $refresh, $post_accept, $tlsd) = @_;
-        local $SIG{PIPE} = 'IGNORE';
         daemon_prepare($default);
         my $af_default = $default =~ /:8080\z/ ? 'httpready' : undef;
         my $for_destroy = daemonize();