libcryfs/utils/Data.h

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