d function is_process_running() {
if ( get_site_transient( $this->identifier . '_process_lock' ) ) {
// Process already running.
return true;
}
return false;
}
/**
* Lock process
*
* Lock the process so that multiple instances can't run simultaneously.
* Override if applicable, but the duration should be greater than that
* defined in the time_exceeded() method.
*/
protected function lock_process() {
$this->start_time = time(); // Set start time of current process.
$lock_duration = ( property_exists( $this, 'queue_lock_time' ) ) ? $this->queue_lock_time : 60; // 1 minute
$lock_duration = apply_filters( $this->identifier . '_queue_lock_time', $lock_duration );
set_site_transient( $this->identifier . '_process_lock', microtime(), $lock_duration );
}
/**
* Unlock process
*
* Unlock the process so that other instances can spawn.
*
* @return $this
*/
protected function unlock_process() {
delete_site_transient( $this->identifier . '_process_lock' );
return $this;
}
/**
* Get batch
*
* @return \stdClass Return the first batch from the queue
*/
protected function get_batch() {
global $wpdb;
$table = $wpdb->options;
$column = 'option_name';
$key_column = 'option_id';
$value_column = 'option_value';
if ( is_multisite() ) {
$table = $wpdb->sitemeta;
$column = 'meta_key';
$key_column = 'meta_id';
$value_column = 'meta_value';
}
$key = $wpdb->esc_like( $this->identifier . '_batch_' ) . '%';
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
// Can't use placeholders for table/column names, it will be wrapped by a single quote (') instead of a backquote (`).
$query = $wpdb->get_row( $wpdb->prepare( "
SELECT *
FROM {$table}
WHERE {$column} LIKE %s
ORDER BY {$key_column} ASC
LIMIT 1
", $key ) );
// phpcs:enable
$batch = new \stdClass();
$batch->key = $query->$column;
$batch->data = maybe_unserialize( $query->$value_column );
return $batch;
}
/**
* Handle
*
* Pass each queue item to the task handler, while remaining
* within server memory and time limit constraints.
*/
protected function handle() {
$this->lock_process();
do {
$batch = $this->get_batch();
foreach ( $batch->data as $key => $value ) {
$task = $this->task( $value );
if ( false !== $task ) {
$batch->data[ $key ] = $task;
} else {
unset( $batch->data[ $key ] );
}
if ( $this->time_exceeded() || $this->memory_exceeded() ) {
// Batch limits reached.
break;
}
}
// Update or delete current batch.
if ( ! empty( $batch->data ) ) {
$this->update( $batch->key, $batch->data );
} else {
$this->delete( $batch->key );
}
} while ( ! $this->time_exceeded() && ! $this->memory_exceeded() && ! $this->is_queue_empty() );
$this->unlock_process();
// Start next batch or complete process.
if ( ! $this->is_queue_empty() ) {
$this->dispatch();
} else {
$this->complete();
}
wp_die();
}
/**
* Memory exceeded
*
* Ensures the batch process never exceeds 90%
* of the maximum WordPress memory.
*
* @return bool
*/
protected function memory_exceeded() {
$memory_limit = $this->get_memory_limit() * 0.9; // 90% of max memory
$current_memory = memory_get_usage( true );
$return = false;
if ( $current_memory >= $memory_limit ) {
$return = true;
}
return apply_filters( $this->identifier . '_memory_exceeded', $return );
}
/**
* Get memory limit
*
* @return int
*/
protected function get_memory_limit() {
if ( function_exists( 'ini_get' ) ) {
$memory_limit = ini_get( 'memory_limit' );
} else {
// Sensible default.
$memory_limit = '128M';
}
if ( ! $memory_limit || -1 === intval( $memory_limit ) ) {
// Unlimited, set to 32GB.
$memory_limit = '32000M';
}
return intval( $memory_limit ) * 1024 * 1024;
}
/**
* Time exceeded.
*
* Ensures the batch never exceeds a sensible time limit.
* A timeout limit of 30s is common on shared hosting.
*
* @return bool
*/
protected function time_exceeded() {
$finish = $this->start_time + apply_filters( $this->identifier . '_default_time_limit', 20 ); // 20 seconds
$return = false;
if ( time() >= $finish ) {
$return = true;
}
return apply_filters( $this->identifier . '_time_exceeded', $return );
}
/**
* Complete.
*
* Override if applicable, but ensure that the below actions are
* performed, or, call parent::complete().
*/
protected function complete() {
// Unschedule the cron healthcheck.
$this->clear_scheduled_event();
}
/**
* Schedule cron healthcheck
*
* @access public
* @param mixed $schedules Schedules.
* @return mixed
*/
public function schedule_cron_healthcheck( $schedules ) {
$interval = apply_filters( $this->identifier . '_cron_interval', 5 );
if ( property_exists( $this, 'cron_interval' ) ) {
$interval = apply_filters( $this->identifier . '_cron_interval', $this->cron_interval );
}
// Adds every 5 minutes to the existing schedules.
$schedules[ $this->identifier . '_cron_interval' ] = array(
'interval' => MINUTE_IN_SECONDS * $interval,
/* translators: %d: Interval in minutes. */
'display' => sprintf( esc_html__( 'Every %d minutes', 'elementor' ), $interval ),
);
return $schedules;
}
/**
* Handle cron healthcheck
*
* Restart the background process if not already running
* and data exists in the queue.
*/
public function handle_cron_healthcheck() {
if ( $this->is_process_running() ) {
// Background process already running.
exit;
}
if ( $this->is_queue_empty() ) {
// No data to process.
$this->clear_scheduled_event();
exit;
}
$this->handle();
exit;
}
/**
* Schedule event
*/
protected function schedule_event() {
if ( ! wp_next_scheduled( $this->cron_hook_identifier ) ) {
wp_schedule_event( time(), $this->cron_interval_identifier, $this->cron_hook_identifier );
}
}
/**
* Clear scheduled event
*/
protected function clear_scheduled_event() {
$timestamp = wp_next_scheduled( $this->cron_hook_identifier );
if ( $timestamp ) {
wp_unschedule_event( $timestamp, $this->cron_hook_identifier );
}
}
/**
* Cancel Process
*
* Stop processing queue items, clear cronjob and delete batch.
*
*/
public function cancel_process() {
if ( ! $this->is_queue_empty() ) {
$batch = $this->get_batch();
$this->delete( $batch->key );
wp_clear_scheduled_hook( $this->cron_hook_identifier );
}
}
/**
* Task
*
* Override this method to perform any actions required on each
* queue item. Return the modified item for further processing
* in the next pass through. Or, return false to remove the
* item from the queue.
*
* @param mixed $item Queue item to iterate over.
*
* @return mixed
*/
abstract protected function task( $item );
}
Fatal error: Uncaught Error: Class "Elementor\Core\Base\BackgroundProcess\WP_Background_Process" not found in /htdocs/wp-content/plugins/elementor/core/base/background-task.php:17
Stack trace:
#0 /htdocs/wp-content/plugins/elementor/includes/autoloader.php(294): require()
#1 /htdocs/wp-content/plugins/elementor/includes/autoloader.php(330): Elementor\Autoloader::load_class('Core\\Base\\Backg...')
#2 /htdocs/wp-content/plugins/elementor/core/upgrade/task.php(12): Elementor\Autoloader::autoload('Elementor\\Core\\...')
#3 /htdocs/wp-content/plugins/elementor/includes/autoloader.php(294): require('/htdocs/wp-cont...')
#4 /htdocs/wp-content/plugins/elementor/includes/autoloader.php(330): Elementor\Autoloader::load_class('Core\\Upgrade\\Ta...')
#5 /htdocs/wp-content/plugins/elementor/core/base/background-task-manager.php(39): Elementor\Autoloader::autoload('Elementor\\Core\\...')
#6 /htdocs/wp-content/plugins/elementor/core/upgrade/custom-tasks-manager.php(103): Elementor\Core\Base\Background_Task_Manager->get_task_runner()
#7 /htdocs/wp-content/plugins/elementor/includes/plugin.php(748): Elementor\Core\Upgrade\Custom_Tasks_Manager->__construct()
#8 /htdocs/wp-content/plugins/elementor/includes/plugin.php(647): Elementor\Plugin->init_components()
#9 /htdocs/wp-includes/class-wp-hook.php(310): Elementor\Plugin->init('')
#10 /htdocs/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array)
#11 /htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#12 /htdocs/wp-settings.php(632): do_action('init')
#13 /htdocs/wp-config.php(96): require_once('/htdocs/wp-sett...')
#14 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...')
#15 /htdocs/wp-blog-header.php(13): require_once('/htdocs/wp-load...')
#16 /htdocs/index.php(17): require('/htdocs/wp-blog...')
#17 {main}
thrown in /htdocs/wp-content/plugins/elementor/core/base/background-task.php on line 17