public function __construct($dataDir)
{
$fmis = new FileMappedInputStream($dataDir . "/matrix.bin");
$this->leftSize = $fmis->getInt();
$this->rightSize = $fmis->getInt();
$this->matrix = $fmis->getShortArrayInstance($this->leftSize * $this->rightSize);
$fmis->close();
}
public function __construct($filePath)
{
$fmis = new FileMappedInputStream($filePath);
$nodeSz = $fmis->getInt();
$tindSz = $fmis->getInt();
$tailSz = $fmis->getInt();
$this->keySetSize = $tindSz;
$this->begs = $fmis->getIntArrayInstance($tindSz);
$this->base = $fmis->getIntArrayInstance($nodeSz);
$this->lens = $fmis->getShortArrayInstance($tindSz);
$this->chck = $fmis->getCharArrayInstance($nodeSz);
$this->tail = array_values(unpack("S*", $fmis->getString($tailSz)));
$fmis->close();
}