The following code telnets to google and saves the "expect" log to a file. That is, as long as I don't spawn a thread before I spawn my Expect object! If I define $make_it_break to 1, this code will only save to the logfile the strings I send. 
use Expect;
use FileHandle;
use threads;

my $telnet = new Expect;
my $telnet_logfile_name = "telnet.log";
my $telnet_logfile = new FileHandle (">$telnet_logfile_name") or die "
+Can't write $telnet_logfile_name!  $!";
$telnet_logfile->autoflush(1);
$telnet->log_file  (sub { my $str=shift; $telnet_logfile->print ("$str
+"); });

my @command = qw(telnet www.google.com 80);

my $make_it_break = 0;
if ($make_it_break) {
    threads->new (\&daves_handler);
    $telnet->spawn (@command) or die "Cannot spawn @command: $!\n";
} else {
    $telnet->spawn (@command) or die "Cannot spawn @command: $!\n";
    threads->new (\&daves_handler);
}

$telnet->send ("GET / HTTP/1.1\r\nUser-Agent: dave\r\nHost: www.google
+.com\r\n\r\n");
$telnet->expect (10, 'HTTP/1.1 200 OK');
$telnet->print_log_file("Dave was here\n");

sub daves_handler { while (1) {    sleep 10; } }

[download]
Unfortunately, in my application, I need to spawn a thread before spawning my telnet session. I also need automatic expect logging. Is there any workaround for me?

Thanks,
Dave

In reply to Is there a workaround for threads breaking Expect.pm logging? by knave

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