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