public function run()
{
$startTime = time();
session_write_close();
while (true) {
foreach ($this->chunks as $chunkName => $chunk) {
$chunk->run();
}
if ($this->isAnyData() or time() - $startTime > $this->timeout or $this->isInstantOutput) {
JSON::jsonOutput($this->getOutputArray());
break;
}
usleep($this->runInteval * 1000000);
}
}