public function perform()
{
// Make sure we catch and process fatal errors from within the job
register_shutdown_function(function () {
if (!($e = error_get_last()) || !in_array($e['type'], array(E_ERROR, E_CORE_ERROR, E_COMPILE_ERROR, E_PARSE))) {
return;
}
$this->logger->error('Worker (fork): Job [ ' . $this->job->getId() . ' ] failed fatally with message: [ ' . $e['message'] . ' ]');
$this->host->failJob($this->job, new \ErrorException($e['message'], $e['type'], 0, $e['file'], $e['line']));
});
try {
$this->jobCreator->create($this->job)->perform();
} catch (\Exception $e) {
$this->logger->error('Worker (fork): Job [ ' . $this->job->getId() . ' ] failed with message: [ ' . $e->getMessage() . ' ]');
$this->host->failJob($this->job, $e);
throw $e;
}
$this->host->completeJob($this->job);
$this->logger->debug('Worker (fork): Job [ ' . $this->job->getId() . ' ] completed successfully');
return 0;
}
/**
*
*/
public function run()
{
$this->shutdown = false;
$this->host->start();
$this->logger->info('Host: Started host with ID: ' . $this->host->getId());
$this->logger->info(sprintf('Long poll: %sµs. Short poll: %sµs. Queue failure sleep: %ss', $this->sleepIntervalMicroSecsLongPoll, $this->sleepIntervalMicroSecsShortPoll, $this->sleepIntervalSecsFailed));
while (1) {
$sleep = count($this->workers) === 0 ? $this->sleepIntervalMicroSecsLongPoll : $this->sleepIntervalMicroSecsShortPoll;
$this->updateHostStatus();
$queueSets = $this->host->getQueueSets();
if (!$this->pause && !$this->shutdown) {
if ($this->checkForJobs($queueSets)) {
$sleep = 0;
} elseif ($this->testing) {
$this->shutdown = count($this->workers) === 0;
}
}
if ($this->shutdown) {
$this->logger->debug("Waiting for " . count($this->workers) . " workers");
if (count($this->workers) === 0) {
// Don't wait for child processes - we know there aren't any
$this->spork->zombieOkay();
break;
}
}
foreach ($this->workers as $id => $worker) {
if (($status = $worker->getExitStatus()) !== false) {
$failed = $status !== 0;
$job = $worker->getJob();
try {
$this->host->failJob($job, new JobIncompleteException('Job was not marked complete within the process'));
$failed = true;
$this->logger->warning("Host: Job [ {$job->getId()} ] was not completed in the forked process which exited with status code: [ {$status} ] and was failed in the parent worker");
} catch (JobAlreadyCompleteException $e) {
}
if ($failed) {
$worker->getQueueSet()->sleepFor($this->sleepIntervalSecsFailed);
$this->logger->error("Host: Job [ {$job->getId()} ] failed, sleeping worker [ {$id} ] for [ {$this->sleepIntervalSecsFailed} ] microseconds");
}
unset($this->workers[$id]);
} elseif ($this->terminate || $this->host->shouldBeKilled($worker->getJob()->getId())) {
$worker->terminate();
}
}
$this->logger->debug("Sleeping for {$sleep} µs");
usleep($sleep);
}
$this->logger->info('Host: Stopped');
$this->host->stop();
}