/**
* @param WorkerBootstrapProfile $bootstrapProfile
* @param string $implementationExpression
*/
protected function __construct(WorkerBootstrapProfile $bootstrapProfile, $implementationExpression)
{
$bootstrapProfile->getOrFindPhpExecutablePathAndArguments($php, $phpArgs);
$bootstrapProfile->compileScriptWithExpression($implementationExpression, null, $scriptPath, $deleteScript);
try {
$line = array_merge([$php], $phpArgs, [$scriptPath]);
$outPath = $bootstrapProfile->getOutputPath();
$this->process = proc_open(implode(' ', array_map('escapeshellarg', $line)), [0 => ['pipe', 'r'], 1 => ['pipe', 'w'], 2 => $outPath !== null ? ['file', $outPath, 'a'] : STDERR], $pipes);
$inputSink = Sink::fromStream($pipes[0], true);
$outputSource = Source::fromStream($pipes[1], true);
$this->channel = $bootstrapProfile->getChannelFactory()->createChannel($outputSource, $inputSink);
} catch (\Exception $e) {
if (isset($pipes[1])) {
fclose($pipes[1]);
}
if (isset($pipes[0])) {
fclose($pipes[0]);
}
if (isset($this->process)) {
proc_terminate($this->process);
proc_close($this->process);
}
if ($deleteScript) {
unlink($scriptPath);
}
throw $e;
}
}
/**
* @param RawWorkerImplementationInterface|EventedWorkerImplementationInterface $workerImpl
*
* @throws Exception\InvalidArgumentException
*/
public static function runDedicatedWorker($workerImpl)
{
$channel = self::getChannelFactory()->createChannel(Source::fromInput(), Sink::fromOutput());
if ($workerImpl instanceof RawWorkerImplementationInterface) {
$workerImpl->run($channel);
} elseif ($workerImpl instanceof EventedWorkerImplementationInterface) {
$loop = self::getLoop();
Selectable::registerRead($loop, $channel, function () use($loop, $channel, $workerImpl) {
try {
$message = $channel->receiveMessage();
} catch (IOException\UnderflowException $e) {
Selectable::unregisterRead($loop, $channel);
$workerImpl->onDisconnect($channel);
return;
}
$workerImpl->onMessage($message, $channel, null);
});
$workerImpl->setLoop($loop);
$workerImpl->initialize();
$workerImpl->onConnect($channel, null);
$loop->run();
$workerImpl->terminate();
} else {
throw new Exception\InvalidArgumentException('Bad worker implementation');
}
}
