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<?php |
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/* |
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* Copyright © MIKO LLC - All Rights Reserved |
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* Unauthorized copying of this file, via any medium is strictly prohibited |
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* Proprietary and confidential |
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* Written by Alexey Portnov, 9 2020 |
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*/ |
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namespace MikoPBX\Core\Workers; |
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use MikoPBX\Core\Asterisk\AsteriskManager; |
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use MikoPBX\Core\System\BeanstalkClient; |
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use MikoPBX\Core\System\Util; |
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use Phalcon\Di; |
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use Phalcon\Text; |
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abstract class WorkerBase extends Di\Injectable implements WorkerInterface |
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{ |
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protected AsteriskManager $am; |
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protected int $maxProc = 0; |
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public int $currentProcId = 1; |
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/** |
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* Workers shared constructor |
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*/ |
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public function __construct() |
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{ |
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$this->checkCountProcesses(); |
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$this->savePidFile(); |
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} |
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/** |
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* Calculates how many processes have started already and kill excess or old processes |
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*/ |
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private function checkCountProcesses(): void |
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{ |
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$activeProcesses = Util::getPidOfProcess(static::class, getmypid()); |
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if ($this->maxProc === 1) { |
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if ( ! empty($activeProcesses)) { |
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$killApp = Util::which('kill'); |
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// Завершаем старый процесс. |
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Util::mwExec("{$killApp} {$activeProcesses}"); |
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} |
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} elseif ($this->maxProc > 1) { |
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// Лимит процессов может быть превышен. Удаление лишних процессов. |
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$processes = explode(' ', $activeProcesses); |
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// Запустим нехдостающие процессы |
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$countProc = count($processes); |
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while ($countProc < $this->maxProc) { |
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Util::processPHPWorker(static::class,'start','multiStart'); |
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$countProc++; |
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} |
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// Получим количество лишних процессов. |
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$countProc = count($processes) - $this->maxProc; |
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$killApp = Util::which('kill'); |
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// Завершим лишние |
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while ($countProc >= 0) { |
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if ( ! isset($processes[$countProc])) { |
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break; |
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} |
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// Завершаем старый процесс. |
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Util::mwExec("{$killApp} {$processes[$countProc]}"); |
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$countProc--; |
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} |
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} |
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} |
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/** |
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* Saves pid to pidfile |
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*/ |
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private function savePidFile(): void |
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{ |
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$activeProcesses = Util::getPidOfProcess(static::class); |
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file_put_contents($this->getPidFile(), $activeProcesses); |
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} |
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/** |
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* Create PID file for worker |
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*/ |
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public function getPidFile(): string |
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{ |
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$name = str_replace("\\", '-', static::class); |
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return "/var/run/{$name}.pid"; |
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} |
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/** |
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* Ping callback for keep alive check |
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* |
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* @param BeanstalkClient $message |
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*/ |
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public function pingCallBack(BeanstalkClient $message): void |
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{ |
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$message->reply(json_encode($message->getBody() . ':pong')); |
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} |
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/** |
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* If it was Ping request to check worker, we answer Pong and return True |
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* |
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* @param $parameters |
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* |
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* @return bool |
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*/ |
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public function replyOnPingRequest($parameters): bool |
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{ |
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$pingTube = $this->makePingTubeName(static::class); |
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if ($pingTube === $parameters['UserEvent']) { |
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$this->am->UserEvent("{$pingTube}Pong", []); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Make ping tube from classname and ping word |
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* |
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* @param string $workerClassName |
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* |
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* @return string |
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*/ |
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public function makePingTubeName(string $workerClassName): string |
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{ |
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return Text::camelize("ping_{$workerClassName}", '\\'); |
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} |
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} |
mikopbx /
Core
