lei: TSTP affects all curl and related subprocesses

By relying more on pgroups for remaining remaining processes,
this lets us pause all curl+tail subprocesses with a single
kill(2) to avoid cluttering stderr.

We won't bother pausing the pigz/gzip/bzip2/xz compressor
process not cat-file processes, though, since those don't write
to the terminal and they idle soon after the workers react to
SIGSTOP.

AutoReap is hoisted out from TestCommon.pm.  CLONE_SKIP
is gone since we won't be using Perl threads any time
soon (they're discouraged by the maintainers of Perl).

1 files changed, 1 insertions, 6 deletions

diff --git a/lib/PublicInbox/LEI.pm b/lib/PublicInbox/LEI.pm
index 9620e264..d0905562 100644
--- a/lib/PublicInbox/LEI.pm
+++ b/lib/PublicInbox/LEI.pm
@@ -516,12 +516,6 @@ sub sigpipe_handler { # handles SIGPIPE from @WQ_KEYS workers
         fail_handler($_[0], 13, delete $_[0]->{1});
 }
 
-# PublicInbox::OnDestroy callback for SIGINT to take out the entire pgid
-sub sigint_reap {
-        my ($pgid) = @_;
-        dwaitpid($pgid) if kill('-INT', $pgid);
-}
-
 sub fail ($$;$) {
         my ($self, $buf, $exit_code) = @_;
         local $current_lei = $self;
@@ -600,6 +594,7 @@ sub _lei_atfork_child {
                         $cb->(@_) unless PublicInbox::Eml::warn_ignore(@_)
                 };
         }
+        $SIG{TERM} = sub { exit(128 + 15) };
         $current_lei = $persist ? undef : $self; # for SIG{__WARN__}
 }