[PATCH 2/3] extindex: move {checkpoint_unlocks} to $self

[Eric Wong <e@80x24.org>]

One small step towards eliminating the $sync structure.
---
 lib/PublicInbox/ExtSearchIdx.pm | 8 ++++----
 lib/PublicInbox/V2Writable.pm   | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/PublicInbox/ExtSearchIdx.pm b/lib/PublicInbox/ExtSearchIdx.pm
index 1c2a9a26..a172ba62 100644
--- a/lib/PublicInbox/ExtSearchIdx.pm
+++ b/lib/PublicInbox/ExtSearchIdx.pm
@@ -528,15 +528,15 @@ SELECT num FROM over WHERE num >= ? ORDER BY num ASC LIMIT 10000
 	warn "# eliminated $nr stale Xapian documents\n" if $nr != 0;
 }
 
-sub eidx_gc {
+sub eidx_gc { # top-level entry point
 	my ($self, $opt) = @_;
 	$self->{cfg} or die "E: GC requires ->attach_config\n";
 	$opt->{-idx_gc} = 1;
+	local $self->{checkpoint_unlocks} = 1;
 	my $sync = {
 		need_checkpoint => \(my $need_checkpoint),
 		check_intvl => 10,
 		next_check => now() + 10,
-		checkpoint_unlocks => 1,
 		-opt => $opt,
 		self => $self,
 	};
@@ -1159,11 +1159,11 @@ sub eidx_sync { # main entry point
 	}
 
 	if (my $msgids = delete($opt->{dedupe})) {
-		local $sync->{checkpoint_unlocks} = 1;
+		local $self->{checkpoint_unlocks} = 1;
 		eidx_dedupe($self, $sync, $msgids);
 	}
 	if (delete($opt->{reindex})) {
-		local $sync->{checkpoint_unlocks} = 1;
+		local $self->{checkpoint_unlocks} = 1;
 		eidx_reindex($self, $sync);
 	}
 
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index c894b648..87118ec4 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -707,7 +707,7 @@ sub reindex_checkpoint ($$) {
 	my $mm_tmp = $sync->{mm_tmp};
 	$mm_tmp->atfork_prepare if $mm_tmp;
 	die 'BUG: {im} during reindex' if $self->{im};
-	if ($self->{ibx_map} && !$sync->{checkpoint_unlocks}) {
+	if ($self->{ibx_map} && !$self->{checkpoint_unlocks}) {
 		checkpoint($self, 1); # no need to release lock on pure index
 	} else {
 		$self->done; # release lock