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    my ($readHandle, $writeHandle) = (IO::Handle->new, IO::Handle->new
+);
...
    $writeHandle->autoflush(1);
    $writeHandle->blocking(0);

    ## $messageForProcessing is a data structure stored as a hash refe
+rence
...

    print $writeHandle $frozenMessage . qq|\n| . $this->_messageDelimi
+ter();

sub processMessages
{
...
    
}

Process 22515 attached - interrupt to quit
...
select(8, [0], NULL, NULL, {5, 0})      = 1 (in [0], left {5, 0})
read(0, "", 8192)                       = 0