40 lines
941 B
C++
40 lines
941 B
C++
#pragma once
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#ifndef MESSMER_BLOCKSTORE_IMPLEMENTATIONS_CACHING_CACHEDBLOCK_H_
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#define MESSMER_BLOCKSTORE_IMPLEMENTATIONS_CACHING_CACHEDBLOCK_H_
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#include "../../interface/Block.h"
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#include <cpp-utils/pointer/unique_ref.h>
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namespace blockstore {
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namespace caching {
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class CachingBlockStore;
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class CachedBlock final: public Block {
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public:
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//TODO Storing key twice (in parent class and in object pointed to). Once would be enough.
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CachedBlock(cpputils::unique_ref<Block> baseBlock, CachingBlockStore *blockStore);
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~CachedBlock();
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const void *data() const override;
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void write(const void *source, uint64_t offset, uint64_t size) override;
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void flush() override;
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size_t size() const override;
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void resize(size_t newSize) override;
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cpputils::unique_ref<Block> releaseBlock();
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private:
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CachingBlockStore *_blockStore;
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cpputils::unique_ref<Block> _baseBlock;
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DISALLOW_COPY_AND_ASSIGN(CachedBlock);
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};
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}
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}
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#endif
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