+sub mb_stream {
+ my ($more) = @_;
+ bless $more, 'PublicInbox::Mbox';
+}
+
+# called by PSGI server as body response
+# this gets called twice for every message, once to return the header,
+# once to retrieve the body
+sub getline {
+ my ($more) = @_; # self
+ my ($ctx, $id, $prev, $next, $mref, $hdr) = @$more;
+ if ($hdr) { # first message hits this, only
+ pop @$more; # $hdr
+ return msg_hdr($ctx, $hdr);
+ }
+ if ($mref) { # all messages hit this
+ pop @$more; # $mref
+ return msg_body($$mref);
+ }
+ my $cur = $next or return;
+ my $ibx = $ctx->{-inbox};
+ $next = $ibx->over->next_by_mid($ctx->{mid}, \$id, \$prev);
+ $mref = $ibx->msg_by_smsg($cur) or return;
+ $hdr = Email::Simple->new($mref)->header_obj;
+ @$more = ($ctx, $id, $prev, $next, $mref); # $next may be undef, here
+ msg_hdr($ctx, $hdr); # all but first message hits this
+}
+
+sub close {} # noop
+
+sub emit_raw {
+ my ($ctx) = @_;
+ my $mid = $ctx->{mid};
+ my $ibx = $ctx->{-inbox};
+ my ($mref, $more, $id, $prev, $next);
+ if (my $over = $ibx->over) {
+ my $smsg = $over->next_by_mid($mid, \$id, \$prev) or return;
+ $mref = $ibx->msg_by_smsg($smsg) or return;
+ $next = $over->next_by_mid($mid, \$id, \$prev);
+ } else {
+ $mref = $ibx->msg_by_mid($mid) or return;
+ }
+ my $hdr = Email::Simple->new($mref)->header_obj;
+ $more = [ $ctx, $id, $prev, $next, $mref, $hdr ]; # for ->getline
+ my $fn = subject_fn($hdr);