watch: remove redundant signal mask manipulation

The top-level daemon process already blocks all signals,
so there's no reason to block them around fork() calls.

diff --git a/lib/PublicInbox/Watch.pm b/lib/PublicInbox/Watch.pm
index e80bbdec16fdf8dd766b8761d059caf48891e373..3f6fe21b726f30d3d185032e45ca7e20d358a561 100644 (file)
--- a/lib/PublicInbox/Watch.pm
+++ b/lib/PublicInbox/Watch.pm
@@ -391,11 +391,7 @@ sub watch_atfork_child ($) {
        PublicInbox::DS::sig_setmask($self->{oldset});
 }
 
-sub watch_atfork_parent ($) {
-       my ($self) = @_;
-       _done_for_now($self);
-       PublicInbox::DS::block_signals();
-}
+sub watch_atfork_parent ($) { _done_for_now($_[0]) }
 
 sub imap_idle_requeue { # DS::add_timer callback
        my ($self, $uri_intvl) = @_;
@@ -449,13 +445,12 @@ sub event_step {
        return if $self->{quit};
        my $idle_todo = $self->{idle_todo};
        if ($idle_todo && @$idle_todo) {
-               my $oldset = watch_atfork_parent($self);
+               watch_atfork_parent($self);
                eval {
                        while (my $uri_intvl = shift(@$idle_todo)) {
                                imap_idle_fork($self, $uri_intvl);
                        }
                };
-               PublicInbox::DS::sig_setmask($oldset);
                die $@ if $@;
        }
        fs_scan_step($self) if $self->{mdre};
@@ -492,7 +487,7 @@ sub poll_fetch_fork { # DS::add_timer callback
        my ($self, $intvl, $uris) = @_;
        return if $self->{quit};
        pipe(my ($r, $w)) or die "pipe: $!";
-       my $oldset = watch_atfork_parent($self);
+       watch_atfork_parent($self);
        my $seed = rand(0xffffffff);
        my $pid = fork;
        if (defined($pid) && $pid == 0) {
@@ -508,7 +503,6 @@ sub poll_fetch_fork { # DS::add_timer callback
                close $w;
                _exit(0);
        }
-       PublicInbox::DS::sig_setmask($oldset);
        die "fork: $!"  unless defined $pid;
        $self->{poll_pids}->{$pid} = [ $intvl, $uris ];
        PublicInbox::EOFpipe->new($r, \&reap, [$pid, \&poll_fetch_reap, $self]);