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<?php |
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namespace Tavii\SQSJobQueue\Worker; |
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use Tavii\SQSJobQueue\Exception\RuntimeException; |
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use Tavii\SQSJobQueue\Queue\QueueName; |
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use Tavii\SQSJobQueue\Queue\QueueInterface; |
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use Tavii\SQSJobQueue\Storage\EntityInterface; |
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use Tavii\SQSJobQueue\Storage\StorageInterface; |
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class Worker implements WorkerInterface |
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{ |
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/** |
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* @var QueueInterface |
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*/ |
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private $queue; |
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/** |
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* @var StorageInterface |
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*/ |
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private $storage; |
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/** |
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* Worker constructor. |
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* @param QueueInterface $queue |
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* @param StorageInterface $storage |
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*/ |
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public function __construct(QueueInterface $queue, StorageInterface $storage) |
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{ |
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$this->queue = $queue; |
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$this->storage = $storage; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function run(QueueName $queueName) |
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{ |
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$message = $this->queue->receive($queueName); |
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if (is_null($message)) { |
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return false; |
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} |
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if ($message->getJob()->execute()) { |
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$this->queue->delete($message); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function start(QueueName $queueName, $sleep = 5, $prefix = null) |
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{ |
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$pid = pcntl_fork(); |
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if ($pid === -1) { |
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throw new RuntimeException('Could not fork the process'); |
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} elseif ($pid > 0) { |
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if (function_exists('gethostname')) { |
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$server = gethostname(); |
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} else { |
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$server = php_uname('n'); |
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} |
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$this->storage->set($queueName, $server, $pid); |
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} else { |
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while(true) { |
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$this->run($queueName); |
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sleep($sleep); |
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} |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function stop(QueueName $queueName, $pid = null, $force = false) |
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{ |
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if (function_exists('gethostname')) { |
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$server = gethostname(); |
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} else { |
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$server = php_uname('n'); |
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} |
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$processes = $this->storage->find($queueName, $server, $pid); |
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foreach ($processes as $process) { |
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if (!$process instanceof EntityInterface) { |
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throw new RuntimeException('no support data type.'); |
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} |
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if (posix_kill($process->getProcId(), 3)) { |
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$this->storage->remove($process->getQueueName(), $process->getServer(), $process->getProcId()); |
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} |
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} |
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if ($force) { |
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$this->storage->removeForce($queueName, $server); |
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} |
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} |
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} |
tavii /
SQSJobQueue
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