libcryfs/implementations/ondisk/OnDiskBlock.h

49 lines
1.3 KiB
C
Raw Normal View History

2014-12-09 17:19:59 +01:00
#pragma once
#ifndef BLOCKSTORE_IMPLEMENTATIONS_ONDISK_ONDISKBLOCK_H_
#define BLOCKSTORE_IMPLEMENTATIONS_ONDISK_ONDISKBLOCK_H_
#include <boost/filesystem/path.hpp>
#include "../../interface/Block.h"
#include "../../utils/Data.h"
2014-12-09 17:19:59 +01:00
#include <iostream>
2015-02-17 00:23:33 +01:00
#include "messmer/cpp-utils/macros.h"
2014-12-09 17:19:59 +01:00
namespace blockstore {
namespace ondisk {
class OnDiskBlockStore;
class OnDiskBlock: public Block {
public:
virtual ~OnDiskBlock();
2015-01-24 22:08:41 +01:00
static std::unique_ptr<OnDiskBlock> LoadFromDisk(const boost::filesystem::path &rootdir, const Key &key);
static std::unique_ptr<OnDiskBlock> CreateOnDisk(const boost::filesystem::path &rootdir, const Key &key, size_t size);
2015-02-22 00:29:21 +01:00
static void RemoveFromDisk(const boost::filesystem::path &rootdir, const Key &key);
2014-12-09 17:19:59 +01:00
const void *data() const override;
void write(const void *source, uint64_t offset, uint64_t size) override;
2014-12-09 17:19:59 +01:00
void flush() override;
size_t size() const override;
private:
const boost::filesystem::path _filepath;
Data _data;
bool _dataChanged;
2014-12-09 17:19:59 +01:00
2015-01-24 22:08:41 +01:00
OnDiskBlock(const Key &key, const boost::filesystem::path &filepath, size_t size);
OnDiskBlock(const Key &key, const boost::filesystem::path &filepath, Data &&data);
2014-12-09 17:19:59 +01:00
void _fillDataWithZeroes();
void _storeToDisk() const;
DISALLOW_COPY_AND_ASSIGN(OnDiskBlock);
};
}
}
#endif