mod/worker.php

   1 <?php
   2 /**
   3  * @file mod/worker.php
   4  * Module for running the worker as frontend process
   5  */
   6
   7 use Friendica\Core\Config;
   8 use Friendica\Core\Logger;
   9 use Friendica\Core\Worker;
  10 use Friendica\Database\DBA;
  11 use Friendica\DI;
  12 use Friendica\Util\DateTimeFormat;
  13
  14 function worker_init()
  15 {
  16
  17         if (!DI::config()->get("system", "frontend_worker")) {
  18                 return;
  19         }
  20
  21         // Ensure that all "strtotime" operations do run timezone independent
  22         date_default_timezone_set('UTC');
  23
  24         // We don't need the following lines if we can execute background jobs.
  25         // So we just wake up the worker if it sleeps.
  26         if (function_exists("proc_open")) {
  27                 Worker::executeIfIdle();
  28                 return;
  29         }
  30
  31         Worker::clearProcesses();
  32
  33         $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'worker.php'");
  34
  35         if ($workers[0]["processes"] > DI::config()->get("system", "worker_queues", 4)) {
  36                 return;
  37         }
  38
  39         Worker::startProcess();
  40
  41         Logger::log("Front end worker started: ".getmypid());
  42
  43         Worker::callWorker();
  44
  45         if ($r = Worker::workerProcess()) {
  46                 // On most configurations this parameter wouldn't have any effect.
  47                 // But since it doesn't destroy anything, we just try to get more execution time in any way.
  48                 set_time_limit(0);
  49
  50                 $fields = ['executed' => DateTimeFormat::utcNow(), 'pid' => getmypid(), 'done' => false];
  51                 $condition =  ['id' => $r[0]["id"], 'pid' => 0];
  52                 if (DBA::update('workerqueue', $fields, $condition)) {
  53                         Worker::execute($r[0]);
  54                 }
  55         }
  56
  57         Worker::callWorker();
  58
  59         Worker::unclaimProcess();
  60
  61         Worker::endProcess();
  62
  63         Logger::log("Front end worker ended: ".getmypid());
  64
  65         exit();
  66 }