问文件未按要求关闭，请“完成”使用guese5.3

EN

    $client = new GuzzleHttp\Client();
    $requests = [];
    foreach($files as $fileName) {
        $options = [
            'debug' => false,
            'events' => [
                'before'=>
                    function (BeforeEvent $e) use ($fileName) {
                        echo 'Opening body|'.count(glob('/proc/'.posix_getpid().'/fd/*')).PHP_EOL;
                        $stream = \GuzzleHttp\Stream\Stream::factory(fopen($fileName,'r'));
                        $e->getRequest()->setBody($stream);
                    },
                'complete' =>
                    function (CompleteEvent $e){
                        echo 'Closing body|'.count(glob('/proc/'.posix_getpid().'/fd/*')).PHP_EOL;
                        $stream = $e->getResponse()->getBody();
                        $stream->close();
                    },
            ]
        ];

        $request = $client->createRequest('POST', $this->baseUri . $this->uploadPath, $options);
        $requests[] = $request;
    }
    Pool::batch($client, $requests, ['pool_size'=> $this->poolSize]);