【PHP】Revolt のイベントループで HTTP/2 フレームを送受信する

Revolt のブロッキングなサンプルコードでうまくいったので記録

use Revolt\EventLoop;

require __DIR__ . '/vendor/autoload.php';


// https://github.com/revoltphp/event-loop/blob/358572ca31647df7dbe930f13c8567136beffa33/examples/http-client-blocking.php
// https://gist.github.com/masakielastic/924f750722ad06a25363735b48094fb2
require 'H2FrameIter.php';
require 'h2testdata.php';

$stream = stream_socket_client('tcp://localhost:8000');
stream_set_blocking($stream, false);

fwrite($stream, h2_client_frame());

$callbackId = EventLoop::onReadable($stream, function ($watcher, $stream) {
    $chunk = fread($stream, 1024);

    if ($chunk === '') {
        EventLoop::cancel($watcher);
        fclose($stream);
        return;
    }

    $iter = H2FrameIter($chunk);
    $current = 0;

    foreach ($iter as $key => $next) {
        var_dump([
            'key' => $key,
            'current' => $current,
            'next' => $next
        ]);

        if (isEndStream($chunk, $current)) {
            var_dump(['payload' => getPayload($chunk, $current)]);
            EventLoop::cancel($watcher);
            fclose($stream);
            return;
        }

        $current = $next;

    }

});

EventLoop::run();
EventLoop::disable($callbackId);