ds: drop ::later support

add_uniq_timer seems sufficient, and we'll drop the last
user of ::later (IMAP) and switch to unique timers.

1 files changed, 6 insertions, 7 deletions

diff --git a/lib/PublicInbox/IMAP.pm b/lib/PublicInbox/IMAP.pm
index 27013ea5..bc34f4fe 100644
--- a/lib/PublicInbox/IMAP.pm
+++ b/lib/PublicInbox/IMAP.pm
@@ -316,20 +316,19 @@ sub on_inbox_unlock {
         }
 }
 
-# called every X minute(s) or so by PublicInbox::DS::later
-my $IDLERS = {};
-my $idle_timer;
+# called every minute or so by PublicInbox::DS::later
+my $IDLERS; # fileno($obj->{sock}) => PublicInbox::IMAP
 sub idle_tick_all {
         my $old = $IDLERS;
-        $IDLERS = {};
+        $IDLERS = undef;
         for my $i (values %$old) {
                 next if ($i->{wbuf} || !exists($i->{-idle_tag}));
                 $i->update_idle_time or next;
                 $IDLERS->{fileno($i->{sock})} = $i;
                 $i->write(\"* OK Still here\r\n");
         }
-        $idle_timer = scalar keys %$IDLERS ?
-                        PublicInbox::DS::later(\&idle_tick_all) : undef;
+        $IDLERS and
+                PublicInbox::DS::add_uniq_timer('idle', 60, \&idle_tick_all);
 }
 
 sub cmd_idle ($$) {
@@ -346,7 +345,7 @@ sub cmd_idle ($$) {
                 $ibx->subscribe_unlock($fd, $self);
                 $self->{imapd}->idler_start;
         }
-        $idle_timer //= PublicInbox::DS::later(\&idle_tick_all);
+        PublicInbox::DS::add_uniq_timer('idle', 60, \&idle_tick_all);
         $IDLERS->{$fd} = $self;
         \"+ idling\r\n"
 }