This constructor creates a listen socket (using the optional address arguments) and when a connection is ready to be accepted it triggers its object. The callback method is passed the accepted socket as its first argument.
'object' => <required object to trigger>
'method' =>
<method to call (default is 'accepted').
the accepted socket is passed as the first argument>
'port' => <port to listen on (default is 10000)>
'host' => <host/ip to listen on (default is IN_ANY)>
'listen' => <max number of pending accepts (default 5)>
