+sub restart_read_cb ($) {
+ my ($self) = @_;
+ sub { $self->watch_read(1) }
+}
+
+sub main_cb ($$$) {
+ my ($http, $fh, $bref) = @_;
+ sub {
+ my ($self) = @_;
+ my $r = sysread($self->{sock}, $$bref, 8192);
+ if ($r) {
+ $fh->write($$bref);
+ return if $http->{closed};
+ if ($http->{write_buf_size}) {
+ $self->watch_read(0);
+ $http->write(restart_read_cb($self));
+ }
+ # stay in watch_read, but let other clients
+ # get some work done, too.
+ return;
+ } elsif (!defined $r) {
+ return if $!{EAGAIN} || $!{EINTR};
+ }
+
+ # Done! Error handling will happen in $fh->close
+ # called by the {cleanup} handler
+ $http->{forward} = undef;
+ $self->close;
+ }
+}
+
+sub async_pass {
+ my ($self, $http, $fh, $bref) = @_;
+ # In case the client HTTP connection ($http) dies, it
+ # will automatically close this ($self) object.
+ $http->{forward} = $self;
+ $fh->write($$bref); # PublicInbox:HTTP::{chunked,identity}_wcb
+ $self->{cb} = main_cb($http, $fh, $bref);
+}
+
+sub event_read { $_[0]->{cb}->(@_) }
+sub event_hup { $_[0]->{cb}->(@_) }
+sub event_err { $_[0]->{cb}->(@_) }