Hi all, I wrote the following UDP "pooler" code: 
sub sampleNode
{
    my ($msg, $peerAddr, $eTime) = @_;
    my $bol = 0;
    
    print "Sending the message to the server for node $msg...\n";
    $MySocket = new IO::Socket::INET->new(    PeerPort => 6060,
                            Proto => 'udp',
                            PeerAddr => $peerAddr,
                            );
    ioctl($MySocket, 0x8004667e, pack("I", 1));
    
    $MySocket->send($msg);
    while((time() < $eTime) && (!$bol))
    {
        #print "time: " . time() . ", threshold: $eTime\n";

        $MySocket->recv($text,128);
        print $text;
        if($text =~ /OK/)
        {
            print "Received ok response: $text";
            $bol = 1;
        }
    }
    return $bol;
}

[download]
My question is very simple: What the following line does? ioctl($MySocket, 0x8004667e, pack("I", 1)); Whotout this line the timeout just won't work, it freezes on $MySocket->recv($text,128); I just found it and paste it in my code and now it is working! I really want to fully understand that. Thanks all!

In reply to UDP socket connect. by leonidlm

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