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Diffstat (limited to '')
-rw-r--r-- | src/jaegertracing/thrift/lib/php/lib/Server/TForkingServer.php | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/php/lib/Server/TForkingServer.php b/src/jaegertracing/thrift/lib/php/lib/Server/TForkingServer.php new file mode 100644 index 000000000..0bb6e9192 --- /dev/null +++ b/src/jaegertracing/thrift/lib/php/lib/Server/TForkingServer.php @@ -0,0 +1,125 @@ +<?php + +namespace Thrift\Server; + +use Thrift\Transport\TTransport; +use Thrift\Exception\TException; +use Thrift\Exception\TTransportException; + +/** + * A forking implementation of a Thrift server. + * + * @package thrift.server + */ +class TForkingServer extends TServer +{ + /** + * Flag for the main serving loop + * + * @var bool + */ + private $stop_ = false; + + /** + * List of children. + * + * @var array + */ + protected $children_ = array(); + + /** + * Listens for new client using the supplied + * transport. We fork when a new connection + * arrives. + * + * @return void + */ + public function serve() + { + $this->transport_->listen(); + + while (!$this->stop_) { + try { + $transport = $this->transport_->accept(); + + if ($transport != null) { + $pid = pcntl_fork(); + + if ($pid > 0) { + $this->handleParent($transport, $pid); + } elseif ($pid === 0) { + $this->handleChild($transport); + } else { + throw new TException('Failed to fork'); + } + } + } catch (TTransportException $e) { + } + + $this->collectChildren(); + } + } + + /** + * Code run by the parent + * + * @param TTransport $transport + * @param int $pid + * @return void + */ + private function handleParent(TTransport $transport, $pid) + { + $this->children_[$pid] = $transport; + } + + /** + * Code run by the child. + * + * @param TTransport $transport + * @return void + */ + private function handleChild(TTransport $transport) + { + try { + $inputTransport = $this->inputTransportFactory_->getTransport($transport); + $outputTransport = $this->outputTransportFactory_->getTransport($transport); + $inputProtocol = $this->inputProtocolFactory_->getProtocol($inputTransport); + $outputProtocol = $this->outputProtocolFactory_->getProtocol($outputTransport); + while ($this->processor_->process($inputProtocol, $outputProtocol)) { + } + @$transport->close(); + } catch (TTransportException $e) { + } + + exit(0); + } + + /** + * Collects any children we may have + * + * @return void + */ + private function collectChildren() + { + foreach ($this->children_ as $pid => $transport) { + if (pcntl_waitpid($pid, $status, WNOHANG) > 0) { + unset($this->children_[$pid]); + if ($transport) { + @$transport->close(); + } + } + } + } + + /** + * Stops the server running. Kills the transport + * and then stops the main serving loop + * + * @return void + */ + public function stop() + { + $this->transport_->close(); + $this->stop_ = true; + } +} |