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Process\Pool的detach不生效

### 问题描述

### Swoole版本，PHP版本，以及操作系统版本信息
swoole:4.8.11
php:7.4
os:centos

### 相关代码
```php
<?php
use Swoole\Process;
use Swoole\Coroutine;

$pool = new Process\Pool(2);
$pool->set(['enable_coroutine' => true]);
$pool->on('WorkerStart', function (Process\Pool $pool, $workerId) {
    static $running = true;
    Process::signal(SIGTERM, function () use (&$running) {
        $running = false;
        echo "TERM\n";
    });
    echo("[Worker #{$workerId}] WorkerStart, pid: " . posix_getpid() . "\n");
    $i = 0;
    while ($running) {
        Coroutine::sleep(1);
        $i++;
        if ($i == 5) {
            $pool->detach();
        } elseif ($i == 10) {
            break;
        }
    }
});
$pool->on('WorkerStop', function (Process\Pool $pool, $workerId) {
    echo("[Worker #{$workerId}] WorkerStop, pid: " . posix_getpid() . "\n");
});
$pool->start();
```

### 你期待的结果是什么？实际看到的错误信息又是什么？

detach后并程序没有终止而且出现警告

```
[Worker #0] WorkerStart, pid: 58222
[Worker #1] WorkerStart, pid: 58223
[Worker #0] WorkerStart, pid: 58224
[Worker #1] WorkerStart, pid: 58225
[Worker #0] WorkerStop, pid: 58222
[2023-04-28 11:30:00 @58221.0]  WARNING ProcessPool::wait(): [Manager]unknown worker[pid=58222]
[Worker #0] WorkerStart, pid: 58226
[Worker #1] WorkerStop, pid: 58223
[2023-04-28 11:30:00 @58221.0]  WARNING ProcessPool::wait(): [Manager]unknown worker[pid=58223]
[Worker #1] WorkerStart, pid: 58227
[Worker #0] WorkerStop, pid: 58224
[Worker #0] WorkerStart, pid: 58228
[2023-04-28 11:30:05 @58221.0]  WARNING ProcessPool::wait(): [Manager]unknown worker[pid=58224]
[Worker #1] WorkerStop, pid: 58225
[2023-04-28 11:30:05 @58221.0]  WARNING ProcessPool::wait(): [Manager]unknown worker[pid=58225]
[Worker #1] WorkerStart, pid: 58229
[Worker #0] WorkerStop, pid: 58226
[2023-04-28 11:30:10 @58221.0]  WARNING ProcessPool::wait(): [Manager]unknown worker[pid=58226]
[Worker #0] WorkerStart, pid: 58230
[Worker #1] WorkerStop, pid: 58227
[2023-04-28 11:30:10 @58221.0]  WARNING ProcessPool::wait(): [Manager]unknown worker[pid=58227]
[Worker #1] WorkerStart, pid: 58231
[Worker #0] WorkerStop, pid: 58228
[Worker #0] WorkerStart, pid: 58232
......
```

发布于1年前 · 8 次浏览 · 来自提问