+/**
+ * @brief Call the front end worker
+ */
+function call_worker() {
+ if (!get_config("system", "frontend_worker")) {
+ return;
+ }
+
+ $url = get_app()->get_baseurl()."/worker";
+ fetch_url($url, false, $redirects, 1);
+}
+
+/**
+ * @brief Call the front end worker if there aren't any active
+ */
+function call_worker_if_idle() {
+ if (!get_config("system", "frontend_worker")) {
+ return;
+ }
+
+ poller_run_cron();
+
+ clear_worker_processes();
+
+ $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'worker.php'");
+
+ if ($workers[0]["processes"] == 0) {
+ call_worker();
+ }
+}
+
+/**
+ * @brief Removes long running worker processes
+ */
+function clear_worker_processes() {
+ $timeout = Config::get("system", "frontend_worker_timeout", 10);
+
+ /// @todo We should clean up the corresponding workerqueue entries as well
+ q("DELETE FROM `process` WHERE `created` < '%s' AND `command` = 'worker.php'",
+ dbesc(datetime_convert('UTC','UTC',"now - ".$timeout." minutes")));
+}
+
+/**
+ * @brief Runs the cron processes
+ */
+function poller_run_cron() {
+ // Run the cron job that calls all other jobs
+ proc_run(PRIORITY_MEDIUM, "include/cron.php");
+
+ // Run the cronhooks job separately from cron for being able to use a different timing
+ proc_run(PRIORITY_MEDIUM, "include/cronhooks.php");
+
+ // Cleaning dead processes
+ poller_kill_stale_workers();
+}
+