(Perl) Bind and Listen on a Randomly Selected Unused Port

Demonstrates how to bind and listen on a randomly selected unused port.

Note:The ListenPort property used in this example is available starting in Chilkat v9.5.0.59.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$listenSocket = chilkat::CkSocket->new();

# Pass a value of 0 for the port number to randomly select
# an unused port.
# (The 2nd argument allows for a backlog of 25 pending connection requests when accepting connections.)
$success = $listenSocket->BindAndListen(5555,25);
if ($success != 1) {
    print $listenSocket->lastErrorText() . "\r\n";
    exit;
}

# Find out what port was chosen.
# Note: The ListenPort propety was added in Chilkat v9.5.0.59
$listenPort = $listenSocket->get_ListenPort();
print "Chosen listen port = " . $listenPort . "\r\n";