multithreading - How can use Threads in Requesting Perl -


i'm posting simple script : 1 open text file multiple urls site. 2 first line gets address of site , makes request. 3 content verified on condition. threads want add script make faster, not know how do. please me in threads ?

    #!/usr/bin/perl use lwp::useragent; use http::request; use lwp::simple;  $sis="$^o";if ($sis eq linux){ $cmd="clear";} else { $cmd="cls"; } system("$cmd");  if (!$argv[0]) {  $sis="$^o";if ($sis eq linux){ $cmd="clear";} else { $cmd="cls"; } system("$cmd");  print q { [+] request.....  };  open( site, "< $argv[0]" ) or die( "no open: $!" );  our @array = <lines>;  $numbers = $#array;  ($i = 0; $i <= $numebers; $i++) {  $url = "$array[$i]";  $req=http::request->new(get=>$url); $ua=lwp::useragent->new(); $ua->timeout(15); $resposta=$ua->request($req);  if($resposta->content =~ /exist/) {  print "n t $url n";  open (notepad, ">> texto.txt"); print notepad "$url"; close(notepad);  } }  print q {  [+] fim ! }; 

#!/usr/bin/perl use strict; use warnings; use threads; use threads::shared;  use fcntl              qw( lock_ex ); use io::handle         qw( ); use lwp::useragent     qw( ); use thread::queue 3.01 qw( );  use constant num_workers => 20;  $output_lock :shared; $output_fh; sub write_to_output_file {    lock($output_lock);    print($output_fh @_);    $output_fh->flush(); }  sub worker {    ($ua, $url) = @_;    $response = $ua->get($url);    write_to_output_file("$url\n")       if $response->success       && $response->content =~ /exist/;        }  {    $output_fh = \*stdout;  # or open file.     $q = thread::queue->new();    (1..num_workers) {       async {          $ua = lwp::useragent->new( timeout => 15 );          while (my $job = $q->dequeue()) {             worker($ua, $job);          }       };    }     while (<>) {       chomp;       $q->enqueue($_);    }     $q->end();    $_->join() threads->list(); }

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