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<?php |
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namespace Saxulum\MessageQueue\SystemV; |
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use Saxulum\MessageQueue\MessageInterface; |
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use Saxulum\MessageQueue\MessageReceiveException; |
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use Saxulum\MessageQueue\MessageReceiveInterface; |
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final class SystemVReceive implements MessageReceiveInterface |
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{ |
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/** |
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* @var string |
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*/ |
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private $messageClass; |
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/** |
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* @var resource |
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*/ |
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private $queue; |
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/** |
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* @var int |
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*/ |
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private $type; |
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/** |
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* @var int |
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*/ |
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private $maxBytesPerMessage; |
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/** |
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* @param string $messageClass |
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* @param int $key |
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* @param int $type |
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* @param int $qbytes |
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*/ |
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public function __construct(string $messageClass, int $key, int $type = 1, int $qbytes = 16384) |
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{ |
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$this->messageClass = $messageClass; |
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$this->queue = msg_get_queue($key); |
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$this->type = $type; |
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$this->maxBytesPerMessage = $qbytes / 2; |
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msg_set_queue($this->queue, ['msg_qbytes' => $qbytes]); |
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} |
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/** |
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* @return null|MessageInterface |
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* |
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* @throws MessageReceiveException |
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*/ |
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public function receive() |
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{ |
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$type = null; |
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$json = null; |
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$errorCode = null; |
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$status = msg_receive( |
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$this->queue, |
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$this->type, |
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$type, |
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$this->maxBytesPerMessage, |
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$json, |
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false, |
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MSG_IPC_NOWAIT, |
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$errorCode |
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); |
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if (false === $status) { |
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// we do not wait for a message (prevent lock) |
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if (MSG_ENOMSG === $errorCode) { |
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return null; |
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} |
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throw new MessageReceiveException( |
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sprintf( |
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MessageReceiveException::MESSAGE_RECEIVE_FAILED, |
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sprintf(' (SystemV error code %d)', $errorCode) |
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), |
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MessageReceiveException::CODE_RECEIVE_FAILED |
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); |
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} |
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/** @var MessageInterface $messageClass */ |
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$messageClass = $this->messageClass; |
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return $messageClass::fromJson($json); |
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} |
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/** |
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* @return array |
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* |
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* @throws MessageReceiveException |
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*/ |
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View Code Duplication |
public function receiveAll(): array |
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{ |
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$messages = []; |
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while (null !== $message = $this->receive()) { |
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$messages[] = $message; |
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} |
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return $messages; |
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} |
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} |
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saxulum /
saxulum-message-queue
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.