+# reuse Msgmap to store num => oid mapping (rather than num => mid)
+sub multi_mid_q_new () {
+ my ($fh, $fn) = tempfile('multi_mid-XXXXXXX', EXLOCK => 0, TMPDIR => 1);
+ my $multi_mid = PublicInbox::Msgmap->new_file($fn, 1);
+ $multi_mid->{dbh}->do('PRAGMA synchronous = OFF');
+ # for Msgmap->DESTROY:
+ $multi_mid->{tmp_name} = $fn;
+ $multi_mid->{pid} = $$;
+ close $fh or die "failed to close $fn: $!";
+ $multi_mid
+}
+
+sub multi_mid_q_push ($$) {
+ my ($sync, $oid) = @_;
+ my $multi_mid = $sync->{multi_mid} //= multi_mid_q_new();
+ if ($sync->{reindex}) { # no regen on reindex
+ $multi_mid->mid_insert($oid);
+ } else {
+ my $num = $sync->{regen}--;
+ die "BUG: ran out of article numbers" if $num <= 0;
+ $multi_mid->mid_set($num, $oid);
+ }
+}
+