+sub num_mid0_for_oid {
+ my ($self, $oid, $mid) = @_;
+ my ($num, $mid0);
+ $self->begin_lazy;
+ each_by_mid($self, $mid, ['ddd'], sub {
+ my ($smsg) = @_;
+ my $blob = $smsg->{blob};
+ return 1 if (!defined($blob) || $blob ne $oid); # continue;
+ ($num, $mid0) = ($smsg->{num}, $smsg->{mid});
+ 0; # done
+ });
+ ($num, $mid0);
+}
+