I am using the following script

    $sock = new IO::Socket::INET (
                                  PeerAddr => $$display{'dp_ipaddress'
+},
                                  PeerPort => $$display{'dp_tcpport'},
                                  Proto    => 'tcp',
                                  Blocking => 1,
                                  Timeout  => 3,
                                 );

# blah blah constructing $msg

$sock->send($msg);
$resp =  <$sock>;

[download]

My problem....

The script is getting stuck at '$resp = <$sock>;'

My application, I am sending a message to an electronic display with a microcontroller, which should respond with an ACK (0x6), a NACK (0x15) or no response at all if the display is dead or cable is broken.

I use the response to update a database to indicate to user which displays are working. I have to iterate through many displays and I don't want to get stock at the first non-responding one.

Any ideas on how to get past this problem. I have tried the various eval...die suggestions and select options but none works. I am developing on Windows but product will be deployed on Linux.

In reply to Getting stuck reading from a socket by punungwe

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