/**
*
* @param nc_search_indexer $indexer
* @throws nc_search_exception
* @return boolean is task finished
*/
public function loop(nc_search_indexer $indexer)
{
$cycle_number = 0;
$save_cycles = nc_search::get_setting('IndexerSaveTaskEveryNthCycle');
while (true) {
// stop prematurely:
if (!$this->check_connection()) {
$indexer->cancel();
return true;
// nobody listens anyway
}
if ($this->interrupt_if_needed($indexer, $cycle_number)) {
return false;
}
// сохранять задачу каждые X циклов
if ($cycle_number % $save_cycles == 0) {
$indexer->save_task();
}
switch ($indexer->next()) {
case nc_search_indexer::TASK_FINISHED:
return true;
// we're done
// we're done
case nc_search_indexer::TASK_STEP_FINISHED:
if ($this->delay) {
if ($this->interrupt_if_needed($indexer, $cycle_number)) {
return false;
}
sleep($this->delay);
}
break;
case nc_search_indexer::TASK_STEP_SKIPPED:
break;
default:
throw new nc_search_exception("Incorrect return value from nc_search_indexer::next()");
}
$cycle_number++;
}
}
