poormanscron.module in Poormanscron 6

A module which runs Drupal cron jobs without the cron application.

File

poormanscron.module

<?php

/**
 * @file
 * A module which runs Drupal cron jobs without the cron application.
 */

/**
 * Implementation of hook_help().
 */
function poormanscron_help($path, $arg) {
  switch ($path) {
    case 'admin/help#poormanscron':
      return '<p>' . t('The Poormanscron module runs cron jobs without the need of the cron application.') . '</p>';
    case 'admin/settings/poormanscron':
      return '<p>' . t('The settings provided here allow you to administer Poormancron.') . '</p>';
  }
}

/**
 * Implementation of hook_exit().
 *
 * Checks if poormanscron needs to be run. If this is the case, it invokes
 * the cron hooks of all enabled modules, which are executed after
 * all HTML is returned to the browser. So the user who kicks off the cron
 * jobs should not notice any delay.
 */
function poormanscron_exit() {

  // Calculate when the next poormanscron run is due.
  $lastrun = variable_get('poormanscron_lastrun', 0);
  $nextrun = $lastrun + 60 * variable_get('poormanscron_interval', 180);

  // If the configured time has passed, start the next poormanscron run.
  if (time() > $nextrun) {

    // If this cron run fails to complete, wait a few minutes before retrying.
    variable_set('poormanscron_lastrun', $lastrun + 60 * variable_get('poormanscron_retry_interval', 10));

    // Get the current Drupal messages. Use drupal_set_message() so that
    // the messages aren't deleted in case the cron run fails and
    // we don't get a chance to restore them below.
    $saved_messages = drupal_set_message();

    // Invoke the cron hooks of all enabled modules.
    if (drupal_cron_run()) {
      $message = 'Cron run completed (via poormanscron).';
    }
    else {
      $message = 'Cron run unsuccessful (via poormanscron).';
    }

    // Write a message to the logs if the user wants us to do so.
    if (variable_get('poormanscron_log_cron_runs', 1) == 1) {
      watchdog('cron', $message);
    }
    $t = time();

    // Update the time of the last poormanscron run (this one).
    variable_set('poormanscron_lastrun', $t);

    // Delete any messages added during the cron run (and existing prior
    // messages).
    drupal_get_messages();

    // Restore any prior messages.
    if (isset($saved_messages)) {
      foreach ($saved_messages as $type => $types_messages) {
        foreach ($types_messages as $message) {
          drupal_set_message($message, $type);
        }
      }
    }
  }
}

/**
 * Implmentation of hook_menu().
 */
function poormanscron_menu() {
  $items = array();
  $items['admin/settings/poormanscron'] = array(
    'title' => 'Poormanscron',
    'description' => 'A module which runs Drupal cron jobs without the cron application.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'poormanscron_admin_settings',
    ),
    'access arguments' => array(
      'administer site configuration',
    ),
    'file' => 'poormanscron.admin.inc',
  );
  return $items;
}

Functions

Name	Description
poormanscron_exit	Implementation of hook_exit().
poormanscron_help	Implementation of hook_help().
poormanscron_menu	Implmentation of hook_menu().