/**
* Start the worker and wait for requests
*/
public function listen()
{
$context = new \ZMQContext();
$server = new \ZMQSocket($context, \ZMQ::SOCKET_PULL);
$server->bind('tcp://127.0.0.1:' . ($this->defaultPort + $this->client->getId() - 1));
$this->logger->info('Client worker ' . $this->client . ' is ready');
while (true) {
$request = $server->recv();
$this->logger->debug('Client worker ' . $this->client . ' receiving request : ' . $request);
// Check if the input is valid, ignore if wrong
$request = json_decode($request, true);
if (!$this->isValidInput($request)) {
$this->logger->error('Client worker ' . $this->client . ' received an invalid input');
continue;
}
try {
// Call the right method in the client and push to redis the result
$result = call_user_func_array(array($this->client, $request['command']), $request['parameters']);
} catch (ClientNotReadyException $e) {
$this->logger->warning('Client worker ' . $this->client . ' received a request (#' . $request['invokeId'] . ') whereas the client is not ready. This is normal in case of client reconnection process. Ignoring.');
continue;
}
$key = $this->key . '.client.commands.' . $request['invokeId'];
$this->redis->rpush($key, serialize($result));
$this->redis->expire($key, $this->expire);
}
}
/**
* Cleaning all asynchronous client processes registered by cache files
*
* @param bool $throwException
* @param null|LOLClientInterface $client
*
* @throws \RuntimeException
*/
protected function cleanAsyncClients($throwException = false, $client = null)
{
$this->logger->info('Cleaning cached async clients...');
$cachePath = __DIR__ . '/../../../../' . ConfigurationLoader::get('cache.path') . '/' . 'clientpids';
if (!is_dir($cachePath)) {
if (!mkdir($cachePath, 0777, true)) {
throw new \RuntimeException('Cannot write in the cache folder');
}
}
if (null != $client) {
$path = $cachePath . '/client_' . $client->getId() . '.pid';
if (!is_file($path)) {
return;
}
Process::killProcess($path, $throwException, $this->logger, $client);
} else {
$iterator = new \DirectoryIterator($cachePath);
foreach ($iterator as $pidFile) {
if ($pidFile->isDir()) {
continue;
}
Process::killProcess($pidFile->getRealPath(), $throwException, $this->logger);
}
}
}
