/**
* @param integer $discoverTime
* @return $this
*/
public function discover(int $discoverTime = 10) : self
{
$client = new UDPClient();
$client->setHost($this->host);
$client->setPort($this->port);
$client->setTimeout($discoverTime, 0);
$client->setAllowBrowscast(true);
$client->connect();
$client->write($this->buildPacket('OPTIONS', max(1, $discoverTime / 2)));
$client->write($this->buildPacket('M-SEARCH', max(1, $discoverTime / 2)));
$endTime = time() + $discoverTime;
while (time() < $endTime) {
if ($this->server) {
$this->server->listen(1);
}
/** @var string $msg */
if (!($msg = $client->read())) {
usleep(0.01);
continue;
}
self::$eventHandler->fireEvent(EventDiscover::EVENT_NAME, new EventDiscover((new SsdpResponse())->setFromString($msg)));
}
$client->disconnect();
return $this;
}
/**
* @param InputInterface $input
* @param OutputInterface $output
* @return integer
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
/** @var SsdpResponse[] $services */
$services = [];
$server = new SimpleServiceDiscoveryProtocolServer();
$server->addAllowedMulticastAddress('239.255.255.250');
$server->bind();
$client = new SimpleServiceDiscoveryProtocolClient($this->discoverTime);
$client->setServer($server);
$client->addEvent(EventDiscover::EVENT_NAME, function (EventDiscover $event) use(&$services) {
$service = $event->getSsdpResponse();
if (isset($services[$service->getLocation()])) {
return;
}
$services[$service->getLocation()] = $service;
printf("%s\n\t<%s>\n\n", $service->getServer(), $service->getLocation());
});
$client->discover($this->discoverTime);
return 0;
}
