mod/worker.php

   1 <?php
   2 /**
   3  * @file mod/worker.php
   4  * @brief Module for running the worker as frontend process
   5  */
   6
   7 use Friendica\Core\Config;
   8 use Friendica\Core\Worker;
   9
  10 function worker_init(){
  11
  12         if (!Config::get("system", "frontend_worker")) {
  13                 return;
  14         }
  15
  16         // We don't need the following lines if we can execute background jobs.
  17         // So we just wake up the worker if it sleeps.
  18         if (function_exists("proc_open")) {
  19                 Worker::executeIfIdle();
  20                 return;
  21         }
  22
  23         Worker::clearProcesses();
  24
  25         $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'worker.php'");
  26
  27         if ($workers[0]["processes"] > Config::get("system", "worker_queues", 4)) {
  28                 return;
  29         }
  30
  31         Worker::startProcess();
  32
  33         logger("Front end worker started: ".getmypid());
  34
  35         Worker::callWorker();
  36
  37         if ($r = Worker::workerProcess()) {
  38
  39                 // On most configurations this parameter wouldn't have any effect.
  40                 // But since it doesn't destroy anything, we just try to get more execution time in any way.
  41                 set_time_limit(0);
  42
  43                 $fields = ['executed' => DateTimeFormat::utcNow(), 'pid' => getmypid(), 'done' => false];
  44                 $condition =  ['id' => $r[0]["id"], 'pid' => 0];
  45                 if (dba::update('workerqueue', $fields, $condition)) {
  46                         Worker::execute($r[0]);
  47                 }
  48         }
  49
  50         Worker::callWorker();
  51
  52         Worker::unclaimProcess();
  53
  54         Worker::endProcess();
  55
  56         logger("Front end worker ended: ".getmypid());
  57
  58         killme();
  59 }