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 use Friendica\Database\DBA;
  10 use Friendica\Util\DateTimeFormat;
  11
  12 function worker_init()
  13 {
  14
  15         if (!Config::get("system", "frontend_worker")) {
  16                 return;
  17         }
  18
  19         // We don't need the following lines if we can execute background jobs.
  20         // So we just wake up the worker if it sleeps.
  21         if (function_exists("proc_open")) {
  22                 Worker::executeIfIdle();
  23                 return;
  24         }
  25
  26         Worker::clearProcesses();
  27
  28         $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'worker.php'");
  29
  30         if ($workers[0]["processes"] > Config::get("system", "worker_queues", 4)) {
  31                 return;
  32         }
  33
  34         Worker::startProcess();
  35
  36         logger("Front end worker started: ".getmypid());
  37
  38         Worker::callWorker();
  39
  40         if ($r = Worker::workerProcess()) {
  41                 // On most configurations this parameter wouldn't have any effect.
  42                 // But since it doesn't destroy anything, we just try to get more execution time in any way.
  43                 set_time_limit(0);
  44
  45                 $fields = ['executed' => DateTimeFormat::utcNow(), 'pid' => getmypid(), 'done' => false];
  46                 $condition =  ['id' => $r[0]["id"], 'pid' => 0];
  47                 if (DBA::update('workerqueue', $fields, $condition)) {
  48                         Worker::execute($r[0]);
  49                 }
  50         }
  51
  52         Worker::callWorker();
  53
  54         Worker::unclaimProcess();
  55
  56         Worker::endProcess();
  57
  58         logger("Front end worker ended: ".getmypid());
  59
  60         killme();
  61 }