44 lines
898 B
C++
44 lines
898 B
C++
#pragma once
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#ifndef BLOCKSTORE_IMPLEMENTATIONS_ONDISK_DATA_H_
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#define BLOCKSTORE_IMPLEMENTATIONS_ONDISK_DATA_H_
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#include <cstdlib>
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#include <boost/filesystem/path.hpp>
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#include <messmer/cpp-utils/macros.h>
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#include <memory>
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namespace blockstore {
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class Data {
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public:
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Data(size_t size);
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Data(Data &&rhs); // move constructor
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virtual ~Data();
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Data copy() const;
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void *data();
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const void *data() const;
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size_t size() const;
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void FillWithZeroes();
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void StoreToFile(const boost::filesystem::path &filepath) const;
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static Data LoadFromFile(const boost::filesystem::path &filepath);
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private:
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size_t _size;
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void *_data;
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static void _assertFileExists(const std::ifstream &file, const boost::filesystem::path &filepath);
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static size_t _getStreamSize(std::istream &stream);
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void _readFromStream(std::istream &stream);
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DISALLOW_COPY_AND_ASSIGN(Data);
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};
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}
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#endif
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