48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#pragma once
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#ifndef BLOBSTORE_IMPLEMENTATIONS_ONBLOCKS_BLOBONBLOCKS_H_
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#define BLOBSTORE_IMPLEMENTATIONS_ONBLOCKS_BLOBONBLOCKS_H_
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#include "../../interface/Blob.h"
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#include <memory>
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namespace blobstore {
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namespace onblocks {
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namespace datanodestore {
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class DataLeafNode;
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}
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namespace parallelaccessdatatreestore {
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class DataTreeRef;
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}
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class BlobOnBlocks: public Blob {
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public:
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BlobOnBlocks(cpputils::unique_ref<parallelaccessdatatreestore::DataTreeRef> datatree);
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virtual ~BlobOnBlocks();
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blockstore::Key key() const override;
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uint64_t size() const override;
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void resize(uint64_t numBytes) override;
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void read(void *target, uint64_t offset, uint64_t size) const override;
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uint64_t tryRead(void *target, uint64_t offset, uint64_t size) const override;
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void write(const void *source, uint64_t offset, uint64_t size) override;
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void flush() override;
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cpputils::unique_ref<parallelaccessdatatreestore::DataTreeRef> releaseTree();
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private:
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void traverseLeaves(uint64_t offsetBytes, uint64_t sizeBytes, std::function<void (uint64_t, datanodestore::DataLeafNode *, uint32_t, uint32_t)>) const;
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void resizeIfSmallerThan(uint64_t neededSize);
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cpputils::unique_ref<parallelaccessdatatreestore::DataTreeRef> _datatree;
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};
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}
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}
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#endif
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