package LWP::UserAgent::Trace;

use Time::HiRes;
use Data::Dumper;
use base qw/LWP::UserAgent/;

sub send_request {
  my($self, $request, $arg, $size) = @_;

  my $t0 = [Time::HiRes::gettimeofday];
  my $response = $self->SUPER::send_request($request,$arg,$size);
  my $elapsed = Time::HiRes::tv_interval($t0); 

  my $content_length = length($response->content);
  my $header_length = length($response->headers_as_string);
  print STDERR sprintf "%s %f %d %d %d\n",
    $request->uri, $elapsed, $content_length,
    $header_length, $content_length+$header_length;

  return $response;
}

1;