Don't always fork the poller.

boot.php

@@ -35,6 +35,7 @@ require_once 'include/features.php';
 require_once 'include/identity.php';
 require_once 'update.php';
 require_once 'include/dbstructure.php';
+require_once 'include/poller.php';
 
 define ( 'FRIENDICA_PLATFORM',     'Friendica');
 define ( 'FRIENDICA_CODENAME',     'Asparagus');
@@ -1095,18 +1096,8 @@ function proc_run($cmd) {
 		return;
 	}
 
-	// Checking number of workers
-	$workers = q("SELECT COUNT(*) AS `workers` FROM `workerqueue` WHERE `executed` > '%s'", dbesc(NULL_DATE));
-
-	// Get number of allowed number of worker threads
-	$queues = intval(get_config("system", "worker_queues"));
-
-	if ($queues == 0) {
-		$queues = 4;
-	}
-
 	// If there are already enough workers running, don't fork another one
-	if ($workers[0]["workers"] >= $queues) {
+	if (poller_too_much_workers()) {
 		return;
 	}