/**
* Generate the list of next 10 in queue.
* @param int limit of how many to return for next in queue
* @param boolean minimal fields returned
* @param processing, if true only return true set of what needs to be executed next NOW
* @return array of tasks in order of execution next.
*/
public function next($limit = 10, $minimal = true, $processing = true)
{
//If we don't have any queued in table just exit with empty set.
if (!$this->hasAny(array("{$this->alias}.status" => 1))) {
return array();
}
$cpu = QueueUtil::currentCpu();
$now = $this->str2datetime();
$fields = $minimal ? array("{$this->alias}.id") : array("{$this->alias}.*");
//Set of conditions in order
$conditions = array(array("{$this->alias}.is_restricted" => true, "{$this->alias}.status" => 1, "{$this->alias}.scheduled <=" => $now, 'OR' => array(array("{$this->alias}.scheduled_end >=" => $now), array("{$this->alias}.scheduled_end" => null)), "{$this->alias}.cpu_limit >=" => $cpu), array("{$this->alias}.is_restricted" => true, "{$this->alias}.status" => 1, "{$this->alias}.scheduled <=" => $now, 'OR' => array(array("{$this->alias}.scheduled_end >=" => $now), array("{$this->alias}.scheduled_end" => null))), array("{$this->alias}.is_restricted" => true, "{$this->alias}.status" => 1, "{$this->alias}.cpu_limit >=" => $cpu), array("{$this->alias}.is_restricted" => false, "{$this->alias}.status" => 1));
if (!$processing) {
$conditions[] = array("{$this->alias}.is_restricted" => true, "{$this->alias}.status" => 1, "{$this->alias}.scheduled >=" => $now);
}
$retval = array();
foreach ($conditions as $condition) {
$current_count = count($retval);
if ($current_count >= $limit) {
break;
}
$new_limit = $limit - $current_count;
$result = $this->find('all', array('limit' => $new_limit, 'order' => array("{$this->alias}.scheduled ASC, {$this->alias}.priority ASC"), 'fields' => $fields, 'conditions' => $condition));
if (!empty($result)) {
$retval = array_merge($retval, $result);
}
}
return $retval;
}
