55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
#pragma once
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#ifndef MESSMER_BLOCKSTORE_IMPLEMENTATIONS_LOWTOHIGHLEVEL_LOWTOHIGHLEVELBLOCK_H_
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#define MESSMER_BLOCKSTORE_IMPLEMENTATIONS_LOWTOHIGHLEVEL_LOWTOHIGHLEVELBLOCK_H_
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#include "../../interface/Block.h"
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#include <cpp-utils/data/Data.h>
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#include "../../interface/BlockStore.h"
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#include "../../interface/BlockStore2.h"
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#include <cpp-utils/macros.h>
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#include <memory>
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#include <iostream>
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#include <boost/optional.hpp>
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#include <cpp-utils/crypto/symmetric/Cipher.h>
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#include <cpp-utils/assert/assert.h>
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#include <cpp-utils/data/DataUtils.h>
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#include <mutex>
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#include <cpp-utils/logging/logging.h>
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#include "LowToHighLevelBlockStore.h"
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namespace blockstore {
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namespace lowtohighlevel {
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class LowToHighLevelBlock final: public Block {
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public:
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static boost::optional<cpputils::unique_ref<LowToHighLevelBlock>> TryCreateNew(BlockStore2 *baseBlockStore, const BlockId &blockId, cpputils::Data data);
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static cpputils::unique_ref<LowToHighLevelBlock> Overwrite(BlockStore2 *baseBlockStore, const BlockId &blockId, cpputils::Data data);
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static boost::optional<cpputils::unique_ref<LowToHighLevelBlock>> Load(BlockStore2 *baseBlockStore, const BlockId &blockId);
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LowToHighLevelBlock(const BlockId &blockId, cpputils::Data data, BlockStore2 *baseBlockStore);
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~LowToHighLevelBlock();
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const void *data() const override;
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void write(const void *source, uint64_t offset, uint64_t count) 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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private:
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BlockStore2 *_baseBlockStore;
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cpputils::Data _data;
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bool _dataChanged;
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std::mutex _mutex;
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void _storeToBaseBlock();
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DISALLOW_COPY_AND_ASSIGN(LowToHighLevelBlock);
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};
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}
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}
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#endif
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