libcryfs/data/Data.h

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#pragma once
#ifndef MESSMER_CPPUTILS_DATA_DATA_H_
#define MESSMER_CPPUTILS_DATA_DATA_H_
#include <cstdlib>
#include <boost/filesystem/path.hpp>
#include <boost/optional.hpp>
#include "../macros.h"
#include <memory>
namespace cpputils {
class Data {
public:
explicit Data(size_t size);
virtual ~Data();
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Data(Data &&rhs); // move constructor
Data &operator=(Data &&rhs); // move assignment
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Data copy() const;
void *data();
const void *data() const;
size_t size() const;
Data &FillWithZeroes();
void StoreToFile(const boost::filesystem::path &filepath) const;
static boost::optional<Data> LoadFromFile(const boost::filesystem::path &filepath);
private:
size_t _size;
void *_data;
static size_t _getStreamSize(std::istream &stream);
void _readFromStream(std::istream &stream);
DISALLOW_COPY_AND_ASSIGN(Data);
};
bool operator==(const Data &lhs, const Data &rhs);
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bool operator!=(const Data &lhs, const Data &rhs);
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}
#endif