/**
* @param $worker callable type is unusable atm
*
* @throws DaemonMustBeStartedFirstException
* @return bool true if worker was spawned, false otherwise
*/
protected function spawnWorker($worker)
{
assert('is_callable($worker)');
$this->assertDaemonStarted();
if ($this->maxWorkers === 0) {
throw new DaemonMustBeStartedFirstException('You must set max workers count to use workers.');
}
if (!$this->isWorkerAvailable()) {
return false;
}
$pid = $this->processManager->fork();
if ($pid) {
return $pid;
} else {
call_user_func($worker);
exit;
}
}