41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
#pragma once
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#ifndef MESSMER_BLOCKSTORE_IMPLEMENTATIONS_CACHING_CACHINGBLOCKSTORE_H_
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#define MESSMER_BLOCKSTORE_IMPLEMENTATIONS_CACHING_CACHINGBLOCKSTORE_H_
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#include "cache/Cache.h"
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#include "../../interface/BlockStore.h"
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namespace blockstore {
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namespace caching {
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//TODO Check that this blockstore allows parallel destructing of blocks (otherwise we won't encrypt blocks in parallel)
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class CachingBlockStore final: public BlockStore {
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public:
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explicit CachingBlockStore(cpputils::unique_ref<BlockStore> baseBlockStore);
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Key createKey() override;
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boost::optional<cpputils::unique_ref<Block>> tryCreate(const Key &key, cpputils::Data data) override;
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boost::optional<cpputils::unique_ref<Block>> load(const Key &key) override;
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void remove(cpputils::unique_ref<Block> block) override;
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uint64_t numBlocks() const override;
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void release(cpputils::unique_ref<Block> block);
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boost::optional<cpputils::unique_ref<Block>> tryCreateInBaseStore(const Key &key, cpputils::Data data);
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void removeFromBaseStore(cpputils::unique_ref<Block> block);
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void flush();
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private:
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cpputils::unique_ref<BlockStore> _baseBlockStore;
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Cache<Key, cpputils::unique_ref<Block>, 1000> _cache;
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uint32_t _numNewBlocks;
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DISALLOW_COPY_AND_ASSIGN(CachingBlockStore);
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};
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}
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}
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#endif
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