Search moodle.org's
Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Abstract class for common properties of scheduled_task and adhoc_task.
 *
 * @package    core
 * @category   task
 * @copyright  2013 Damyon Wiese
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
namespace core\task;

use core_component;
use core_plugin_manager;
> use core\check\result;
/** * Abstract class for common properties of scheduled_task and adhoc_task. * * @copyright 2013 Damyon Wiese * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ abstract class task_base { /** @var \core\lock\lock $lock - The lock controlling this task. */ private $lock = null; /** @var \core\lock\lock $cronlock - The lock controlling the entire cron process. */ private $cronlock = null;
< /** @var $string $component - The component this task belongs to. */
> /** @var string $component - The component this task belongs to. */
private $component = ''; /** @var bool $blocking - Does this task block the entire cron process. */ private $blocking = false; /** @var int $faildelay - Exponentially increasing fail delay */ private $faildelay = 0; /** @var int $nextruntime - When this task is due to run next */ private $nextruntime = 0; /** @var int $timestarted - When this task was started */ private $timestarted = null; /** @var string $hostname - Hostname where this task was started and PHP process ID */ private $hostname = null; /** @var int $pid - PHP process ID that is running the task */ private $pid = null; /** * Get a descriptive name for the task (shown to admins) * * @return string */ abstract public function get_name(); /** * Set the current lock for this task. * @param \core\lock\lock $lock */ public function set_lock(\core\lock\lock $lock) { $this->lock = $lock; } /** * Set the current lock for the entire cron process. * @param \core\lock\lock $lock */ public function set_cron_lock(\core\lock\lock $lock) { $this->cronlock = $lock; } /** * Get the current lock for this task. * @return \core\lock\lock */ public function get_lock() { return $this->lock; } /** * Get the next run time for this task. * @return int timestamp */ public function get_next_run_time() { return $this->nextruntime; } /** * Set the next run time for this task. * @param int $nextruntime */ public function set_next_run_time($nextruntime) { $this->nextruntime = $nextruntime; } /** * Get the current lock for the entire cron. * @return \core\lock\lock */ public function get_cron_lock() { return $this->cronlock; } /** * Setter for $blocking. * @param bool $blocking */ public function set_blocking($blocking) { $this->blocking = $blocking; } /** * Getter for $blocking. * @return bool */ public function is_blocking() { return $this->blocking; } /** * Setter for $component. * @param string $component */ public function set_component($component) { $this->component = $component; } /** * Getter for $component. * @return string */ public function get_component() { if (empty($this->component)) { // The component should be the root of the class namespace. $classname = get_class($this); $parts = explode('\\', $classname); if (count($parts) === 1) { $component = substr($classname, 0, strpos($classname, '_task')); } else { [$component] = $parts; } // Load component information from plugin manager. if ($component !== 'core' && strpos($component, 'core_') !== 0) { $plugininfo = \core_plugin_manager::instance()->get_plugin_info($component); if ($plugininfo && $plugininfo->component) { $this->set_component($plugininfo->component); } else { debugging("Component not set and the class namespace does not match a valid component ({$component})."); } } } return $this->component; } /** * Setter for $faildelay. * @param int $faildelay */ public function set_fail_delay($faildelay) { $this->faildelay = $faildelay; } /** * Getter for $faildelay. * @return int */ public function get_fail_delay() { return $this->faildelay; } /** * Do the job. * Throw exceptions on errors (the job will be retried). */ public abstract function execute(); /** * Setter for $timestarted. * @param int $timestarted */ public function set_timestarted($timestarted = null) { $this->timestarted = $timestarted; } /** * Getter for $timestarted. * @return int */ public function get_timestarted() { return $this->timestarted; } /** * Setter for $hostname. * @param string $hostname */ public function set_hostname($hostname = null) { $this->hostname = $hostname; } /** * Getter for $hostname. * @return string */ public function get_hostname() { return $this->hostname; } /** * Setter for $pid. * @param int $pid */ public function set_pid($pid = null) { $this->pid = $pid; } /** * Getter for $pid. * @return int */ public function get_pid() { return $this->pid; } /** * Informs whether the task's component is enabled. * @return bool true when enabled. false otherwise. */ public function is_component_enabled(): bool { $component = $this->get_component(); // An entire core component type cannot be explicitly disabled. [$componenttype] = core_component::normalize_component($component); if ($componenttype === 'core') { return true; } else { $plugininfo = core_plugin_manager::instance()->get_plugin_info($component); return $plugininfo && ($plugininfo->is_enabled() !== false); } }
> } > /** > * Returns task runtime > * @return int > */ > public function get_runtime() { > return time() - $this->timestarted; > } > > /** > * Returns if the task has been running for too long > * @return result > */ > public function get_runtime_result() { > global $CFG; > $runtime = $this->get_runtime(); > $runtimeerror = $CFG->taskruntimeerror; > $runtimewarn = $CFG->taskruntimewarn; > > $status = result::OK; > $details = ''; > > if ($runtime > $runtimewarn) { > $status = result::WARNING; > $details = get_string('slowtask', 'tool_task', format_time($runtimewarn)); > } > > if ($runtime > $runtimeerror) { > $status = result::ERROR; > $details = get_string('slowtask', 'tool_task', format_time($runtimeerror)); > } > > // This result is aggregated with other running tasks checks before display. > return new result($status, '', $details); > } >