52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
#pragma once
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#ifndef BLOBSTORE_IMPLEMENTATIONS_ONBLOCKS_DATANODESTORE_DATANODESTORE_H_
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#define BLOBSTORE_IMPLEMENTATIONS_ONBLOCKS_DATANODESTORE_DATANODESTORE_H_
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#include <memory>
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#include "messmer/cpp-utils/macros.h"
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namespace blockstore{
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class Block;
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class BlockStore;
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class Key;
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}
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namespace blobstore {
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namespace onblocks {
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namespace datanodestore {
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class DataNode;
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class DataLeafNode;
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class DataInnerNode;
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class DataNodeStore {
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public:
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DataNodeStore(std::unique_ptr<blockstore::BlockStore> blockstore);
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virtual ~DataNodeStore();
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static constexpr uint8_t MAX_DEPTH = 10;
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std::unique_ptr<DataNode> load(const blockstore::Key &key);
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std::unique_ptr<DataLeafNode> createNewLeafNode();
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std::unique_ptr<DataInnerNode> createNewInnerNode(const DataNode &first_child);
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std::unique_ptr<DataNode> createNewNodeAsCopyFrom(const DataNode &source);
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std::unique_ptr<DataNode> overwriteNodeWith(std::unique_ptr<DataNode> target, const DataNode &source);
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void remove(std::unique_ptr<DataNode> node);
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private:
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std::unique_ptr<DataNode> load(std::unique_ptr<blockstore::Block> block);
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std::unique_ptr<blockstore::BlockStore> _blockstore;
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DISALLOW_COPY_AND_ASSIGN(DataNodeStore);
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};
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}
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}
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}
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#endif
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