public function __construct(Config $config)
{
$this->ownerPid = $config->get('ownerPid');
$this->ipcKey = new IpcKey($this->ownerPid, str_replace('\\', '_', get_class($this)));
$this->id = msg_get_queue($this->ipcKey->generate());
$this->stat = msg_stat_queue($this->id);
}
/**
* fork master process
*
* @return int $masterPid
*/
public function forkMaster()
{
try {
$fork = $this->fork();
} catch (\RuntimeException $e) {
throw $e;
}
$this->masterPid = $fork->getPid();
$this->log->setMasterPid($this->masterPid);
if (getmypid() === $this->ownerPid) {
// owner
$this->log->info('pid: ' . getmypid());
return $this->masterPid;
} else {
// master
$taskQueue = $this->queueFactory->createTaskQueue();
$activeWorkerSet = new ActiveWorkerSet();
$this->log->info('pid: ' . $this->masterPid);
$log = $this->log;
foreach ($this->signals as $sig) {
$this->pcntl->signal($sig, function ($sig) use($log, $activeWorkerSet) {
$log->info('received signal: ' . $sig);
if ($activeWorkerSet->count() === 0) {
$log->info('no worker is active.');
} else {
$log->info('------> sending signal to workers. signal: ' . $sig);
$activeWorkerSet->terminate($sig);
$log->info('<------ sent signal');
}
exit;
});
}
$concurrency = (int) $this->config->get('concurrency');
while ($task = $taskQueue->dequeue()) {
$this->log->info('dequeued task #' . $taskQueue->dequeuedCount());
if ($activeWorkerSet->count() >= $concurrency) {
$status = null;
$workerPid = $this->pcntl->waitpid(-1, $status);
$activeWorkerSet->delete($workerPid);
}
$activeWorkerSet->add($this->forkWorker($task));
}
exit;
}
}
public function createResultQueue()
{
return $this->createQueue($this->config->get('resultQueue'));
}