- /**
- * Call the front end worker
- *
- * @return void
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public static function callWorker()
- {
- if (!DI::config()->get("system", "frontend_worker")) {
- return;
- }
-
- $url = DI::baseUrl() . '/worker';
- DI::httpRequest()->fetch($url, 1);
- }
-
- /**
- * Call the front end worker if there aren't any active
- *
- * @return void
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public static function executeIfIdle()
- {
- self::checkDaemonState();
-
- if (!DI::config()->get("system", "frontend_worker")) {
- return;
- }
-
- // Do we have "proc_open"? Then we can fork the worker
- if (function_exists("proc_open")) {
- // When was the last time that we called the worker?
- // Less than one minute? Then we quit
- if ((time() - DI::config()->get("system", "worker_started")) < 60) {
- return;
- }
-
- DI::config()->set("system", "worker_started", time());
-
- // Do we have enough running workers? Then we quit here.
- if (self::tooMuchWorkers()) {
- // Cleaning dead processes
- self::killStaleWorkers();
- DI::modelProcess()->deleteInactive();
-
- return;
- }
-
- self::runCron();
-
- Logger::info('Call worker');
- self::spawnWorker();
- return;
- }
-
- // We cannot execute background processes.
- // We now run the processes from the frontend.
- // This won't work with long running processes.
- self::runCron();
-
- self::clearProcesses();
-
- $workers = self::activeWorkers();
-
- if ($workers == 0) {
- self::callWorker();
- }
- }
-
- /**
- * Removes long running worker processes
- *
- * @return void
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public static function clearProcesses()
- {
- $timeout = DI::config()->get("system", "frontend_worker_timeout", 10);
-
- /// @todo We should clean up the corresponding workerqueue entries as well
- $stamp = (float)microtime(true);
- $condition = ["`created` < ? AND `command` = 'worker.php'",
- DateTimeFormat::utc("now - ".$timeout." minutes")];
- DBA::delete('process', $condition);
- self::$db_duration = (microtime(true) - $stamp);
- self::$db_duration_write += (microtime(true) - $stamp);
- }
-