function PerformanceDataCollector::destruct

Performs destruct operations.

Overrides DestructableInterface::destruct

File

core/modules/system/tests/modules/performance_test/src/PerformanceDataCollector.php, line 70

Class

PerformanceDataCollector

Collects and stores performance data for database and cache operations.

Namespace

Code

public function destruct() : void {
  // Get the events now before issuing any more database queries so that this
  // logging does not become part of the recorded data.
  $database_events = $this->databaseEvents;
  // Deliberately do not use an injected key value or lock service to avoid
  // any overhead up until this point.
  $lock = \Drupal::lock();
  // There are a finite number of requests, so if we don't get the lock just
  // wait for up to ten seconds then record the data anyway.
  if (!$lock->acquire('performance_test')) {
    $lock->wait('performance_test', 10);
  }
  $collection = \Drupal::keyValue('performance_test');
  $existing_data = $collection->get('performance_test_data') ?? [
    'database_events' => [],
    'cache_operations' => [],
    'cache_tag_operations' => [],
  ];
  $existing_data['database_events'] = array_merge($existing_data['database_events'], $database_events);
  $existing_data['cache_operations'] = array_merge($existing_data['cache_operations'], $this->cacheOperations);
  $existing_data['cache_tag_operations'] = array_merge($existing_data['cache_tag_operations'], $this->cacheTagOperations);
  $collection->set('performance_test_data', $existing_data);
  $lock->release('performance_test');
}