(PECL event >= 1.5.0)
EventListener::getSocketName — Retreives the current address to which the listener's socket is bound
Retreives the current address to which the listener's socket is bound.
address
Output parameter. IP-address depending on the socket address family.
port
Output parameter. The port the socket is bound to.
成功时返回 true， 或者在失败时返回 false。