libcryfs/implementations/onblocks/datanodestore/DataLeafNode.h

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#pragma once
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#ifndef MESSMER_BLOBSTORE_IMPLEMENTATIONS_ONBLOCKS_DATANODESTORE_DATALEAFNODE_H_
#define MESSMER_BLOBSTORE_IMPLEMENTATIONS_ONBLOCKS_DATANODESTORE_DATALEAFNODE_H_
#include "DataNode.h"
namespace blobstore {
namespace onblocks {
namespace datanodestore {
class DataInnerNode;
class DataLeafNode final: public DataNode {
public:
static cpputils::unique_ref<DataLeafNode> InitializeNewNode(cpputils::unique_ref<blockstore::Block> block);
DataLeafNode(DataNodeView block);
~DataLeafNode();
//Returning uint64_t, because calculations handling this probably need to be done in 64bit to support >4GB blobs.
uint64_t maxStoreableBytes() const;
void read(void *target, uint64_t offset, uint64_t size) const;
void write(const void *source, uint64_t offset, uint64_t size);
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uint32_t numBytes() const;
void resize(uint32_t size);
private:
void fillDataWithZeroesFromTo(off_t begin, off_t end);
DISALLOW_COPY_AND_ASSIGN(DataLeafNode);
};
}
}
}
#endif