nntpd: move busy check to NNTP package

This is better encapsulated and hopefully more readable.
While we're at it, check for being inside a long response, too.

1 files changed, 1 insertions, 1 deletions

diff --git a/public-inbox-nntpd b/public-inbox-nntpd
index 4c156080..70bab46f 100644
--- a/public-inbox-nntpd
+++ b/public-inbox-nntpd
@@ -205,7 +205,7 @@ sub worker_quit {
 
                 foreach my $s (values %$dmap) {
                         next unless ref($s) eq 'PublicInbox::NNTP';
-                        if ($s->{write_buf_size} || $s->{rbuf}) {
+                        if ($s->busy) {
                                 ++$n;
                         } else {
                                 $s->close;