libcryfs/implementations/caching/CachedBlockRef.h
2015-04-09 23:28:30 +02:00

46 lines
1.0 KiB
C++

#pragma once
#ifndef BLOCKSTORE_IMPLEMENTATIONS_CACHING_CACHEDBLOCKREF_H_
#define BLOCKSTORE_IMPLEMENTATIONS_CACHING_CACHEDBLOCKREF_H_
#include "../../interface/Block.h"
#include <messmer/cachingstore/CachingStore.h>
#include "messmer/cpp-utils/macros.h"
#include <memory>
namespace blockstore {
namespace caching {
class CachingBlockStore;
class CachedBlockRef: public Block, public cachingstore::CachingStore<Block, CachedBlockRef, Key>::CachedResource {
public:
//TODO Unneccessarily storing Key twice here (in parent class and in _baseBlock).
CachedBlockRef(Block *baseBlock): Block(baseBlock->key()), _baseBlock(baseBlock) {}
const void *data() const override {
return _baseBlock->data();
}
void write(const void *source, uint64_t offset, uint64_t size) override {
return _baseBlock->write(source, offset, size);
}
void flush() override {
return _baseBlock->flush();
}
size_t size() const override {
return _baseBlock->size();
}
private:
Block *_baseBlock;
DISALLOW_COPY_AND_ASSIGN(CachedBlockRef);
};
}
}
#endif