From a5e39d0e4e2d9b7ad937e8dd9af726d96eec6126 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@80x24.org>
Date: Sat, 23 Jul 2022 04:41:50 +0000
Subject: ds: move requeue_once

It's the same subroutine everywhere.
---
 lib/PublicInbox/DS.pm | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'lib/PublicInbox/DS.pm')

diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index daef9d89..f0181b54 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -650,6 +650,20 @@ sub shutdn ($) {
 
 sub zflush {} # overridden by NNTPdeflate and IMAPdeflate
 
+sub requeue_once {
+	my ($self) = @_;
+	# COMPRESS users all share the same DEFLATE context.
+	# Flush it here to ensure clients don't see
+	# each other's data
+	$self->zflush;
+
+	# no recursion, schedule another call ASAP,
+	# but only after all pending writes are done.
+	# autovivify wbuf.  wbuf may be populated by $cb,
+	# no need to rearm if so: (push returns new size of array)
+	requeue($self) if push(@{$self->{wbuf}}, $self->can('long_step')) == 1;
+}
+
 sub dwaitpid ($;$$) {
 	my ($pid, $cb, $arg) = @_;
 	if ($in_loop) {
-- 
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