PHP StorageInterface::isEmpty示例

示例#1

文件： RootNodes.php 项目： simpreal/keys-tree-db

 /**
  * @param NodesProvider $storage
  */
 public function __construct(StorageInterface $storage)
 {
     $node = new Node();
     $node->valueType = 1;
     $data = $node->pack();
     $blockSize = strlen(bin2hex($data)) / 2;
     $storage->setBlockSize($blockSize);
     $storage->lock();
     if ($storage->isEmpty()) {
         $storage->add($data);
     }
     $storage->unlock();
     $this->setStorage($storage);
     $this->setHeadNodePointer(0);
 }