fwrite() 期望参数 1 是资源,当访问从局部变量移动到从 \Thread 继承的对象字段时,在 PhpAMQP 中给出的整数

fwrite() expects parameter 1 to be resource, integer given in PhpAMQP when access moved from local variable to field of object inheriting from \Thread

当使用连接作为继承自 \Thread 的 class 的字段时,我在 $this->connection->channel() 调用中收到以下错误:

警告:fwrite() 要求参数 1 为资源,第 65 行 /var/content-generator/PHP/vendor/videlalvaro/php-amqplib/PhpAmqpLib/Wire/IO/StreamIO.php 中给出的整数

如果我使用本地变量,一切正常,但我一转到现场调用就收到错误。

失败代码:

public function run()
{
    $this->run = true;
    echo ' Thread-'.$this->ThreadId." including", "\n";
    require_once($this->loader);
    $this->connection = GetRabbitConnection();
    echo ' Thread-'.$this->ThreadId." opening channel", "\n";
    $this->channel = $this->connection->channel();
    echo ' Thread-'.$this->ThreadId." getting queue data", "\n";

    $RedisClient = GetRedisClient();

    $ScrapeExchange = $RedisClient->get(Scrape.":".Exchange);
    $ScrapeQueue = $RedisClient->get(Scrape.":".Queue);

    $this->OutboundExchange = $RedisClient->get(Extract.":".Exchange);
    $this->OutboundRoutingKey = $RedisClient->get(Extract.":".RoutingKey);

    $RedisClient = null;

    echo ' Thread-'.$this->ThreadId." consuming", "\n";

    $this->channel->basic_qos(0,1,false);
    $this->channel->basic_consume($ScrapeQueue, $ScrapeExchange, false, true, false, false, array($this, 'ProcessMessage'));

    while($this->run) {
        $this->channel->wait();
    }

    $this->channel->close();
}

工作代码:

public function run()
{
    echo ' Thread-'.$this->ThreadId." including", "\n";
    require_once($this->loader);
    echo ' Thread-'.$this->ThreadId." building connection", "\n";
    $connection = GetRabbitConnection();
    echo ' Thread-'.$this->ThreadId." opening channel", "\n";
    $channel = $connection->channel();

    echo ' Thread-'.$this->ThreadId." getting queue data", "\n";

    $RedisClient = GetRedisClient();

    $ScrapeExchange = $RedisClient->get(Scrape.":".Exchange);
    $ScrapeQueue = $RedisClient->get(Scrape.":".Queue);

    $this->OutboundExchange = $RedisClient->get(Extract.":".Exchange);
    $this->OutboundRoutingKey = $RedisClient->get(Extract.":".RoutingKey);

    $RedisClient = null;

    echo ' Thread-'.$this->ThreadId." consuming", "\n";

    $channel->basic_consume($ScrapeQueue, $ScrapeExchange, false, true, false, false, array($this, 'ProcessMessage'));

    while(true) {
        $channel->wait();
    }

    $channel->close();
    $connection->close();
}

我错过了什么?是否有一些 \Thread 或 pthreads 是我遗漏的?

PHP 的 PThreads 在实例化和启动之间编组对象变量的方式存在问题。我最终使用在 run() 函数中实例化的对象来保存对象变量来完成工作,而不是尝试使用线程对象本身,并且此后没有任何问题。

资源不受官方支持,这些对象依赖于资源。

您已经找到了解决方案:使用方法作用域变量,您也可以使用静态(class)作用域变量。