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129 lines
2.8 KiB
Markdown
129 lines
2.8 KiB
Markdown
# 訊號處理器
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訊號處理器會監聽 `Worker` 程序和 `自定義` 程序啟動後，自動註冊到訊號管理器中。
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## 安裝
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```
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composer require hyperf/signal
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```
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## 釋出配置
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您可以通過下面的命令來發布預設的配置檔案到您的專案中：
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```bash
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php bin/hyperf.php vendor:publish hyperf/signal
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```
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## 新增處理器
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以下我們監聽 `Worker` 程序的 `SIGTERM` 訊號，當收到訊號後，打印出訊號值。
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```php
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<?php
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declare(strict_types=1);
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namespace App\Signal;
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use Hyperf\Signal\Annotation\Signal;
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use Hyperf\Signal\SignalHandlerInterface;
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/**
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* @Signal
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*/
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class TermSignalHandler implements SignalHandlerInterface
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{
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public function listen(): array
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{
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return [
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[SignalHandlerInterface::WORKER, SIGTERM],
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];
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}
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public function handle(int $signal): void
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{
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var_dump($signal);
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}
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}
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```
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因為 Worker 程序接收的 SIGTERM 訊號被捕獲後，無法正常退出，所以使用者可以直接 `Ctrl + C` 退出，或者修改 `config/autoload/signal.php` 配置，如下：
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> WorkerStopHandler 不適配於 CoroutineServer，如有需要請自行實現
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```php
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<?php
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declare(strict_types=1);
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return [
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'handlers' => [
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Hyperf\Signal\Handler\WorkerStopHandler::class => PHP_INT_MIN
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],
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'timeout' => 5.0,
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];
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```
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`WorkerStopHandler` 觸發後，會在所設定的 [max_wait_time](https://wiki.swoole.com/#/server/setting?id=max_wait_time) 配置時間後，關閉掉當前程序。
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## 協程風格服務監聽器配置示例
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> 以上預設的監聽器都是適配於非同步風格服務的，如果需要在協程風格服務下使用，可以按照以下自定義配置
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```php
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<?php
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declare(strict_types=1);
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namespace App\Kernel\Signal;
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use Hyperf\AsyncQueue\Driver\Driver;
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use Hyperf\Contract\ConfigInterface;
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use Hyperf\Process\ProcessManager;
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use Hyperf\Server\ServerManager;
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use Hyperf\Signal\SignalHandlerInterface;
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use Psr\Container\ContainerInterface;
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class CoroutineServerStopHandler implements SignalHandlerInterface
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{
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/**
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* @var ContainerInterface
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*/
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protected $container;
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/**
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* @var ConfigInterface
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*/
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protected $config;
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public function __construct(ContainerInterface $container)
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{
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$this->container = $container;
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$this->config = $container->get(ConfigInterface::class);
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}
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public function listen(): array
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{
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// 協程風格只會存在一個 Worker 程序，故這裡只需要監聽 WORKER 即可
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return [
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[self::WORKER, SIGTERM],
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[self::WORKER, SIGINT],
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];
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}
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public function handle(int $signal): void
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{
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ProcessManager::setRunning(false);
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foreach (ServerManager::list() as [$type, $server]) {
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// 迴圈關閉開啟的服務
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$server->shutdown();
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}
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}
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}
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```
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