Why ZEROMQ dont push data every time in Ratchet PHP? - php

Question

I try build real-time application with RatchetPHP and ZeroMQ. When my clients subscribes to my WebSocket, I would want push some data to my Master. But not every request is pushed to my Master. If More specifically, every second request is pushed. When I run my script, and reload connection to websocket several times I ses following output:
Topic manager started!
Master started!
Opened connection!
Master: message handled by :NULL
Opened connection!
Opened connection!
Master: message handled by :NULL
Opened connection!
Opened connection!
Master: message handled by :NULL
Opened connection!
Opened connection!
Master: message handled by :NULL
Opened connection!
It means, that when I connect to my Websocket, only second connection push data to Master. And my code is below:
use React\EventLoop\LoopInterface;
use React\ZMQ\Context;
class Master
{
const MASTER_PORT = 3333;
public function __construct(LoopInterface $loop) {
// Listen for the web server to make a ZeroMQ push after an ajax request
$context = new Context($loop);
$pull = $context->getSocket(\ZMQ::SOCKET_PULL);
$pull->bind('tcp://127.0.0.1:' . self::MASTER_PORT); // Binding to 127.0.0.1 means the only client that can connect is itself
$pull->on('message', array($this, 'onMessage'));
echo 'Master started!' . PHP_EOL;
}
public function onMessage($message) {
echo 'Master: message handled :';
var_dump($message);
}
// ...
}
use Ratchet\ConnectionInterface;
use Ratchet\Wamp\WampServerInterface;
use Ratchet\WebSocket\WsServerInterface;
class Pusher implements WsServerInterface, WampServerInterface {
const WEBSOCKET_PORT = 5555;
/**
* #var Topic[]
*/
protected $topicLookup = array();
protected $pushMaster;
public function __construct()
{
// Push to master
$context = new \ZMQContext();
$this->pushMaster = $context->getSocket(\ZMQ::SOCKET_PUSH, 'workers');
$this->pushMaster->connect("tcp://localhost:" . Master::MASTER_PORT);
echo 'Topic manager started!' . PHP_EOL;
}
/**
* {#inheritdoc}
*/
public function onOpen(ConnectionInterface $conn) {
$conn->WAMP->subscriptions = new \SplObjectStorage;
echo 'Opened connection!' . PHP_EOL;
}
/**
* {#inheritdoc}
*/
public function onSubscribe(ConnectionInterface $conn, $topic) {
echo 'Subscribe for ' . $topic . PHP_EOL;
$topicObj = $this->getTopic($topic);
if ($conn->WAMP->subscriptions->contains($topicObj)) {
return;
}
$this->topicLookup[$topic]->add($conn);
$conn->WAMP->subscriptions->attach($topicObj);
}
protected function getTopic($topic) {
if (!array_key_exists($topic, $this->topicLookup)) {
echo $topic . ' before send' . PHP_EOL;
$this->push(json_encode(['action' => 'start', 'from' => $topic]));
$this->topicLookup[$topic] = new Topic($topic);
}
return $this->topicLookup[$topic];
}
/**
* #param string JSON'ified string we'll receive from ZeroMQ
*/
public function onPush($entry) {
$entryData = json_decode($entry, true);
// If the lookup topic object isn't set there is no one to publish to
if (!array_key_exists($entryData['symbol'], $this->topicLookup)) {
return;
}
$topic = $this->topicLookup[$entryData['symbol']];
// re-send the data to all the clients subscribed to that category
$topic->broadcast($entryData);
}
}
// script
<?php
require dirname(__DIR__) . '/vendor/autoload.php';
$loop = React\EventLoop\Factory::create();
$pusher = new \app\Pusher();
// Listen for the web server to make a ZeroMQ push after an ajax request
$context = new React\ZMQ\Context($loop);
$pull = $context->getSocket(ZMQ::SOCKET_PULL);
$pull->bind('tcp://127.0.0.1:' . \app\socket\Pusher::WEBSOCKET_PORT); // Binding to 127.0.0.1 means the only client that can connect is itself
$pull->on('message', array($pusher, 'onPush'));
// Start master for listening messages from Pusher
//$master = new \app\daemon\Master($loop);
// Set up our WebSocket server for clients wanting real-time updates
$webSock = new React\Socket\Server($loop);
$webSock->listen(8081, '0.0.0.0'); // Binding to 0.0.0.0 means remotes can connect
$webServer = new Ratchet\Server\IoServer(
new Ratchet\Http\HttpServer(
new Ratchet\WebSocket\WsServer(
new \app\socket\WampServer(
$pusher
)
)
),
$webSock
);
$loop->run();
What I do wrong?