function _views_bulk_operations_execute_next in Views Bulk Operations (VBO) 6

Gets the next item in the loop taking into consideration server limits for high performance batching.

Return value

• The next object in the objects array.

1 call to _views_bulk_operations_execute_next()

_views_bulk_operations_execute_multiple in ./views_bulk_operations.module

Helper function for multiple execution operations.

File

./views_bulk_operations.module, line 1633

Allows operations to be performed on items selected in a view.

Code

function _views_bulk_operations_execute_next($index, $objects, $batch) {
  static $loop = 0, $last_mem = -1, $last_time = 0, $memory_limit = 0, $time_limit = 0;

  // Early return if we're done.
  if ($index >= count($objects)) {
    return FALSE;
  }

  // Get the array keys.
  $keys = array_keys($objects);
  if ($batch) {

    // Keep track of how many loops we have taken.
    $loop++;

    // Memory limit in bytes.
    $memory_limit = $memory_limit ? $memory_limit : (int) preg_replace('/[^\\d\\s]/', '', ini_get('memory_limit')) * 1048576;

    // Max time execution limit.
    $time_limit = $time_limit ? $time_limit : (int) ini_get('max_execution_time');

    // Current execution time in seconds.
    $current_time = time() - $_SERVER['REQUEST_TIME'];
    $time_left = $time_limit - $current_time;
    if ($loop == 1) {
      $last_time = $current_time;

      // Never break the first loop.
      return $objects[$keys[$index]];
    }

    // Break when current free memory past threshold.  Default to 32 MB.
    if ($memory_limit - memory_get_usage() < variable_get('batch_free_memory_threshold', 33554432)) {
      return FALSE;
    }

    // Break when peak free memory past threshold.  Default to 8 MB.
    if ($memory_limit - memory_get_peak_usage() < variable_get('batch_peak_free_memory_threshold', 8388608)) {
      return $objects[$keys[$index]];
    }

    // Break when execution time remaining past threshold.  Default to 15 sec.
    if ($time_limit - $current_time < variable_get('batch_time_remaining_threshold', 15)) {
      return FALSE;
    }
    $last_time = $current_time;
    return $objects[$keys[$index]];
  }
  else {
    return $objects[$keys[$index]];
  }
}