協(xié)程屏障 Barrier

Barrier 是一個(gè)用于協(xié)程同步的工具，允許在異步任務(wù)中等待所有協(xié)程執(zhí)行完成后再繼續(xù)后續(xù)邏輯。Barrier是基于PHP引用計(jì)數(shù)實(shí)現(xiàn)的。

注意
底層自動(dòng)識(shí)別驅(qū)動(dòng)類型，僅支持Swoole/Swow/Fiber驅(qū)動(dòng)

提示
此特性需要 workerman>=5.1.0

<?php
use Workerman\Connection\TcpConnection;
use Workerman\Coroutine\Barrier;
use Workerman\Coroutine;
use Workerman\Events\Swoole;
use Workerman\Protocols\Http\Request;
use Workerman\Worker;
require_once __DIR__ . '/vendor/autoload.php';

// Http Server
$worker = new Worker('http://0.0.0.0:8001');
$worker->eventLoop = Swoole::class; // Or Swow::class or Fiber::class
$worker->onMessage = function (TcpConnection $connection, Request $request) {
    $barrier = Barrier::create();
    for ($i=1; $i<5; $i++) {
        Coroutine::create(function () use ($barrier, $i) {
            // Do something
        });
    }
    // Wait all coroutine done
    Barrier::wait($barrier);
    $connection->send('All Task Done');
};

Worker::runAll();

接口說明

interface BarrierInterface
{
    /**
     * 創(chuàng)建一個(gè)新的Barrier實(shí)例
     */
    public static function create(): object;

    /**
     * 暫停當(dāng)前協(xié)程，等待指定Barrier中的所有協(xié)程任務(wù)完成
     */
    public static function wait(object &$barrier, int $timeout = -1): void;
}