src/Socket/Enhanced/Server.php
function onBusinessStop(Worker $worker) {
        if (is_callable($this->_on_business_stop))
            call_user_func($this->_on_business_stop, $worker);
    }
function onBusinessStop(Worker $worker) {
        if (is_callable($this->_on_business_stop))
            call_user_func($this->_on_business_stop, $worker);
    }
BusinessWorker停止回调

@param Worker $worker