Question

我在phreads中使用了池和Promise（等待线程的结果）的组合，但我不太擅长编程。我试图在我编写的代码中访问变量$ variable＆＃34; //我不知道如何在函数checkvariable＆＃34;中访问变量$ variable。

但是我不知道这是否是解决问题的正确方法，我想要运行10个线程，并且在每个线程中我需要运行另外10个线程来返回结果。当结果出现时，前10个线程中的1个执行任务并停止。

我非常感谢你的帮助！

<?php

class Pool extends Pool {
    public $data = [];

    public function process() {
        // Run this loop as long as we have
        // jobs in the pool
        while (count($this->work)) {
            $this->collect(function (CheckThis $job) {
                // If a job was marked as done
                // collect its results
                if ($job->isGarbage()) {
                    $this->data[$job->query] = $job->html;
                }

                return $job->isGarbage();
            });
        }

        // All jobs are done
        // we can shutdown the pool
        $this->shutdown();
        return $this->data;
    }
}

class CheckThis extends Collectable {
    public function __construct($variable) {
        $this->variable = $variable;
    }

    public function run() {

        // $this->variable exists here

        $promise = new Promise(function () {

            // I don't know how to access the variable $variable here for the function checkvariable

            return checkvariable($variable);
        });

        $promise->then(function ($results) {

            if ($results) {
                workonresult();
            }
        });         

        $this->setGarbage();
    }
}

class Promise extends Thread {
    public function __construct(Closure $closure) {
        $this->closure = $closure;
        $this->start();
    }

    public function run() {
        $this->synchronized(function () {
            $closure = $this->closure;

            $this->result = $closure();
            $this->notify();
        });
    }

    public function then(callable $callback) {
        return $this->synchronized(function () use ($callback) {
            if (!$this->result) {
                $this->wait();
            }

            $callback($this->result);
        });
    }
}

$pool = new Pool(2, Worker::class);

$pool->submit(new CheckThis($variable1));
$pool->submit(new CheckThis($variable2));

$data = $pool->process();
var_dump($data);

＆GT;

我尝试了这个，但它确实做了工作：

    public function run() {

        $variable = $this->variable;

        $promise = new Promise(function ($variable) {
        return checkvariable($variable);
    });

更新，这也不起作用：

public function run() {

    $variable = $this->variable;

    $promise = new Promise(function () use ($variable) {
    return checkvariable($variable);
});

Answer 1

使用$variable = $this->variable; $promise = new Promise(function () use ($variable) { return checkvariable($variable) });关键字

isspace()

PHP使用池进行pthreads并等待收集结果

1 个答案: