protected function MigrateExecutable::attemptMemoryReclaim in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/migrate/src/MigrateExecutable.php \Drupal\migrate\MigrateExecutable::attemptMemoryReclaim()

Tries to reclaim memory.

Return value

int The memory usage after reclaim.

1 call to MigrateExecutable::attemptMemoryReclaim()

MigrateExecutable::memoryExceeded in core/modules/migrate/src/MigrateExecutable.php

Tests whether we've exceeded the desired memory threshold.

1 method overrides MigrateExecutable::attemptMemoryReclaim()

TestMigrateExecutable::attemptMemoryReclaim in core/modules/migrate/tests/src/Unit/TestMigrateExecutable.php

Tries to reclaim memory.

File

core/modules/migrate/src/MigrateExecutable.php, line 550

Class

MigrateExecutable

Defines a migrate executable class.

Namespace

Drupal\migrate

Code

protected function attemptMemoryReclaim() {

  // First, try resetting Drupal's static storage - this frequently releases
  // plenty of memory to continue.
  drupal_static_reset();

  // Entity storage can blow up with caches so clear them out.
  $entity_type_manager = \Drupal::entityTypeManager();
  foreach ($entity_type_manager
    ->getDefinitions() as $id => $definition) {
    $entity_type_manager
      ->getStorage($id)
      ->resetCache();
  }

  // @TODO: explore resetting the container.
  // Run garbage collector to further reduce memory.
  gc_collect_cycles();
  return memory_get_usage();
}