每個(gè)worker實(shí)例的每個(gè)進(jìn)程都有一個(gè)獨(dú)立的進(jìn)程編號(hào)、即: $worker->id
有的,還是順序排布的,但是對(duì)于應(yīng)用來(lái)說(shuō)意義不大,而且還有 workerPid和workerId的一個(gè)映射數(shù)組
/**
- All worker processes pid.
- The format is like this [worker_id=>[pid=>pid, pid=>pid, ..], ..]
- @var array
*/
protected static $_pidMap = array();