/**
* Get name for new segment
*
* @return string
*/
private function _newSegmentName()
{
Lucene\LockManager::obtainWriteLock($this->_directory);
$generation = Lucene\Index::getActualGeneration($this->_directory);
$segmentsFile = $this->_directory->getFileObject(Lucene\Index::getSegmentFileName($generation), false);
$segmentsFile->seek(12);
// 12 = 4 (int, file format marker) + 8 (long, index version)
$segmentNameCounter = $segmentsFile->readInt();
$segmentsFile->seek(12);
// 12 = 4 (int, file format marker) + 8 (long, index version)
$segmentsFile->writeInt($segmentNameCounter + 1);
// Flash output to guarantee that wrong value will not be loaded between unlock and
// return (which calls $segmentsFile destructor)
$segmentsFile->flush();
Lucene\LockManager::releaseWriteLock($this->_directory);
return '_' . base_convert($segmentNameCounter, 10, 36);
}
/**
* Object destructor
*/
public function __destruct()
{
$this->commit();
// Release "under processing" flag
LockManager::releaseReadLock($this->_directory);
if ($this->_closeDirOnExit) {
$this->_directory->close();
}
$this->_directory = null;
$this->_writer = null;
$this->_segmentInfos = null;
}