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<?php |
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namespace Ackintosh\Snidel; |
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use Ackintosh\Snidel\IpcKey; |
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abstract class AbstractQueue |
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{ |
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/** @var int */ |
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protected $ownerPid; |
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/** @var \Ackintosh\Snidel\IpcKey */ |
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protected $ipcKey; |
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/** @var resource */ |
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protected $id; |
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/** @var array */ |
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protected $stat; |
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/** @var int */ |
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protected $queuedCount = 0; |
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/** @var int */ |
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protected $dequeuedCount = 0; |
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public function __construct($ownerPid) |
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{ |
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$this->ownerPid = $ownerPid; |
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$this->ipcKey = new IpcKey($this->ownerPid, str_replace('\\', '_', get_class($this))); |
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$this->id = msg_get_queue($this->ipcKey->generate()); |
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$this->stat = msg_stat_queue($this->id); |
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} |
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/** |
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* @param string $message |
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*/ |
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protected function sendMessage($message) |
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{ |
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return msg_send($this->id, 1, $message); |
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} |
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/** |
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* @return string |
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* @throws \RuntimeException |
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*/ |
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protected function receiveMessage() |
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{ |
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$msgtype = $message = null; |
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// argument #3: specify the maximum number of bytes allowsed in one message queue. |
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$success = msg_receive($this->id, 1, $msgtype, $this->stat['msg_qbytes'], $message); |
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if (!$success) { |
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throw new \RuntimeException('failed to receive message.'); |
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} |
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return $message; |
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} |
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/** |
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* @param string $message |
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* @return bool |
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*/ |
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protected function isExceedsLimit($message) |
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{ |
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return $this->stat['msg_qbytes'] < strlen($message); |
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} |
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/** |
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* @return int |
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*/ |
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public function queuedCount() |
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{ |
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return $this->queuedCount; |
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} |
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/** |
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* @return int |
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*/ |
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public function dequeuedCount() |
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{ |
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return $this->dequeuedCount; |
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} |
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abstract public function enqueue($something); |
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abstract public function dequeue(); |
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public function __destruct() |
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{ |
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if ($this->ipcKey->isOwner(getmypid())) { |
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$this->ipcKey->delete(); |
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return msg_remove_queue($this->id); |
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} |
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}// @codeCoverageIgnore |
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} |
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|
ackintosh /
snidel
