为什么inotify执行热更新后，会将swoole的进程杀死了，导致需要手动重新启动swoole服务？

[stltd]

• server类

<?php
namespace WebIM;
use Swoole;
use SPF\Filter;
use SPF;
use Swoole\Coroutine as Co;
use Swoole\Coroutine\Http\Server as CoHttpServer;

class HttpServer
{
    protected $users;
    protected $config;
    protected $connections;
    protected $redis;
    protected $db;
    /**
     * 上一次发送消息的时间
     * @var array
     */
    protected $lastSentTime = array();

    const MESSAGE_MAX_LEN     = 1024; //单条消息不得超过1K
    const WORKER_HISTORY_ID   = 0;
    const PREFIX = 'webim';

    function __construct($config = array())
    {
        $this->config = $config;
    }


    function run()
    {
        go(function (){
            $config = $this->config;
            $server = new CoHttpServer($config['server']['host'], $config['server']['port']);

            $server->handle('/', function (Swoole\Http\Request $request, Swoole\Http\Response $response){
                $response->end('Hello world11');
            });

            $server->start();
        });
    }
}

• 以下是inotity的deamon.php

<?php
require __DIR__.'/src/Swoole/ToolKit/AutoReload.php';

$kit = new Swoole\ToolKit\AutoReload(1989);
$kit->watch(__DIR__.'/../webim-2.0');
$kit->run();

• 热更新执行完毕后，再另外一个窗口就弹出：[1]+ User defined signal 1 nohup php server.php的信息，再通过命令：ps -aux | grep php查运行中的php进程时，发现server.php的程序已经被杀死了，请问如何能做不杀死进程对swoole的代码进行热更新？

  [913]=>
  array(4) {
    ["wd"]=>
    int(1829)
    ["mask"]=>
    int(32768)
    ["cookie"]=>
    int(0)
    ["name"]=>
    string(0) ""
  }
  [914]=>
  array(4) {
    ["wd"]=>
    int(1830)
    ["mask"]=>
    int(32768)
    ["cookie"]=>
    int(0)
    ["name"]=>
    string(0) ""
  }
}
--------------------

root@bda0488a9612:/var/www/webim-2.0# ps -aux | grep php
root         1  0.0  1.3  92732 27924 ?        Ss   14:42   0:01 php-fpm: master process (/usr/local/etc/php-fpm.conf)
www-data     7  0.0  0.3  92732  7180 ?        S    14:42   0:00 php-fpm: pool www
www-data     8  0.0  0.3  92732  7180 ?        S    14:42   0:00 php-fpm: pool www
root      1987  0.0  1.4  92776 29352 pts/0    S+   17:28   0:00 php daemon.php
root      1989  0.1  1.4  94956 29172 pts/1    S    17:43   0:00 php server.php
root      1991  0.0  0.0   3080   876 pts/1    S+   17:43   0:00 grep php
root@bda0488a9612:/var/www/webim-2.0# ps -aux | grep php
root         1  0.0  1.3  92732 27924 ?        Ss   14:42   0:01 php-fpm: master process (/usr/local/etc/php-fpm.conf)
www-data     7  0.0  0.3  92732  7180 ?        S    14:42   0:00 php-fpm: pool www
www-data     8  0.0  0.3  92732  7180 ?        S    14:42   0:00 php-fpm: pool www
root      1992  0.5  1.4  92776 29296 pts/0    S+   17:44   0:00 php daemon.php
root      1994  0.0  0.0   3080   888 pts/1    S+   17:45   0:00 grep php
[1]+  User defined signal 1   nohup php server.php
root@bda0488a9612:/var/www/webim-2.0#