<?php /** * Created by PhpStorm. * User: mac * Date: 2020/4/23 * Time: 21:57 */ use Swoole\Process; echo getmypid().PHP_EOL; cli_set_process_title("mymain"); $process = new Process(function () { cli_set_process_title("mychild"); echo ‘子进程 #‘ . getmypid() . PHP_EOL; }); $process->start(); Process::wait(true); while(true) { sleep(1); }
如果没有这一行回收子进程 ，那么子进程不会回收 直到主进程执行完
[root@localhost wang]# php index.php 4692 子进程 #4693
[root@localhost wang]# ps -ef|grep 4692 root 4692 8091 0 23:14 pts/0 00:00:00 mymain root 4693 4692 0 23:14 pts/0 00:00:00 [php] <defunct> root 4701 4652 0 23:15 pts/1 00:00:00 grep --color=auto 4692 [root@localhost wang]#
如果加了wait
[root@localhost wang]# php index.php 4702 子进程 #4703
[root@localhost wang]# ps -ef|grep 4702 root 4702 8091 0 23:15 pts/0 00:00:00 mymain root 4707 4652 0 23:15 pts/1 00:00:00 grep --color=auto 4702
cli_set_process_title 设置进程的标题