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<?php |
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namespace Dazzle\Zmq; |
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use Dazzle\Event\BaseEventEmitter; |
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use Dazzle\Loop\LoopInterface; |
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use ZMQ; |
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use ZMQSocket as RawZMQSocket; |
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class ZmqSocket extends BaseEventEmitter |
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{ |
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/** |
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* @var resource |
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*/ |
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public $fd; |
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/** |
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* @var bool |
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*/ |
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public $closed = false; |
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/** |
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* @var RawZMQSocket |
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*/ |
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private $socket; |
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/** |
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* @var LoopInterface |
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*/ |
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private $loop; |
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/** |
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* @var ZmqBuffer |
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*/ |
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private $buffer; |
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/** |
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* @param RawZMQSocket $socket |
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* @param LoopInterface $loop |
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*/ |
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public function __construct(RawZMQSocket $socket, LoopInterface $loop) |
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{ |
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$this->socket = $socket; |
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$this->loop = $loop; |
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$this->fd = $this->socket->getSockOpt(ZMQ::SOCKOPT_FD); |
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$writeListener = [ $this, 'handleEvent' ]; |
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$this->buffer = new ZmqBuffer($socket, $this->fd, $this->loop, $writeListener); |
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} |
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/** |
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* Attach read listener. |
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*/ |
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public function attachReadListener() |
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{ |
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$this->loop->addReadStream($this->fd, [ $this, 'handleEvent' ]); |
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} |
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/** |
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* Handle ZMQ Event. |
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*/ |
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public function handleEvent() |
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{ |
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while ($this->socket !== null) |
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{ |
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$events = $this->socket->getSockOpt(ZMQ::SOCKOPT_EVENTS); |
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$hasEvents = ($events & ZMQ::POLL_IN) || ($events & ZMQ::POLL_OUT && $this->buffer->listening); |
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if (!$hasEvents) |
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{ |
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break; |
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} |
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if ($events & ZMQ::POLL_IN) |
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{ |
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$this->handleReadEvent(); |
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} |
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if ($events & ZMQ::POLL_OUT && $this->buffer->listening) |
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{ |
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$this->buffer->handleWriteEvent(); |
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} |
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} |
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} |
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/** |
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* Handle ZMQ Read Event. |
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*/ |
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public function handleReadEvent() |
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{ |
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$messages = $this->socket->recvmulti(ZMQ::MODE_DONTWAIT); |
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if (false !== $messages) |
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{ |
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$this->emit('messages', [ $messages ]); |
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} |
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} |
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/** |
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* Return socket. |
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* |
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* @return RawZMQSocket |
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*/ |
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public function getWrappedSocket() |
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{ |
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return $this->socket; |
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} |
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/** |
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* Subscribe socket to channel. |
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* |
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* @param mixed $channel |
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*/ |
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public function subscribe($channel) |
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{ |
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$this->socket->setSockOpt(ZMQ::SOCKOPT_SUBSCRIBE, $channel); |
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} |
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/** |
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* Unsubscribe socket from channel. |
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* |
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* @param mixed $channel |
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*/ |
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public function unsubscribe($channel) |
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{ |
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$this->socket->setSockOpt(ZMQ::SOCKOPT_UNSUBSCRIBE, $channel); |
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} |
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/** |
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* Send message. |
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* |
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* @param string $message |
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*/ |
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public function send($message) |
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{ |
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$this->buffer->send($message); |
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} |
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/** |
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* Close connection and discard not sent data. |
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*/ |
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public function close() |
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{ |
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if ($this->closed) |
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{ |
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return; |
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} |
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$this->emit('end', [ $this ]); |
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$this->loop->removeStream($this->fd); |
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$this->buffer->flushListeners(); |
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$this->flushListeners(); |
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unset($this->socket); |
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$this->closed = true; |
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} |
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/** |
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* Deactivate socket, wait to complete sending all unfinished data, then close connection. |
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*/ |
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public function end() |
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{ |
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if ($this->closed) |
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{ |
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return; |
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} |
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$that = $this; |
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$this->buffer->on('end', function() use($that) { |
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$that->close(); |
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}); |
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$this->buffer->end(); |
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} |
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/** |
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* @param string $method |
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* @param mixed[] $args |
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* @return mixed |
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*/ |
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public function __call($method, $args) |
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{ |
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return call_user_func_array([ $this->socket, $method ], $args); |
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} |
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} |
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dazzle-php /
zmq
