$_scheduler $_scheduler : \SplPriorityQueue Timer scheduler. {['data':timer_id, 'priority':run_timestamp], ..} Type \SplPriorityQueue
$_eventTimer $_eventTimer : array All timer event listeners. [[func, args, flag, timer_interval], ..] Type array
add() add(mixed $fd, integer $flag, callable $func, mixed $args = array()) : boolean Add event listener to event loop. Parameters mixed $fd integer $flag callable $func mixed $args Returns boolean
del() del(mixed $fd, integer $flag) : boolean Remove event listener from event loop. Parameters mixed $fd integer $flag Returns boolean