job_scheduler.module in Job Scheduler 7

job scheduler module.

File

job_scheduler.module

<?php

/**
 * @file
 * job scheduler module.
 */

/**
 * Implementation of hook_cron().
 */
function job_scheduler_cron() {

  // Reschedule stuck periodic jobs after one hour.
  db_update('job_schedule')
    ->fields(array(
    'scheduled' => 0,
  ))
    ->condition('scheduled', REQUEST_TIME - 3600, '<')
    ->condition('periodic', 1)
    ->execute();

  // Query and dispatch scheduled jobs.
  // Process a maximum of 200 jobs in a maximum of 30 seconds.
  $start = time();
  $total = $failed = 0;
  $jobs = db_select('job_schedule', NULL, array(
    'fetch' => PDO::FETCH_ASSOC,
  ))
    ->fields('job_schedule')
    ->condition('scheduled', 0)
    ->condition('next', REQUEST_TIME, '<')
    ->orderBy('next', 'ASC')
    ->range(0, 200)
    ->execute();
  foreach ($jobs as $job) {
    try {
      JobScheduler::get($job['name'])
        ->dispatch($job);
    } catch (Exception $e) {
      watchdog('job_scheduler', $e
        ->getMessage(), array(), WATCHDOG_ERROR);
      $failed++;
    }
    $total++;
    if (time() > $start + 30) {
      break;
    }
  }

  // Leave a note on how much time we spent processing.
  watchdog('job_scheduler', 'Finished processing scheduled jobs (!time s, !total total, !failed failed).', array(
    '!time' => format_interval(time() - $start),
    '!total' => $total,
    '!failed' => $failed,
  ));
}

Functions

Name	Description
job_scheduler_cron	Implementation of hook_cron().