2018-02-07 22:45:41 +03:00
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/*
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2019-06-20 02:58:25 +03:00
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* Copyright (c) Facebook, Inc. and its affiliates.
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2018-02-07 22:45:41 +03:00
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*
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2019-06-20 02:58:25 +03:00
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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2018-02-07 22:45:41 +03:00
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*/
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2019-10-11 15:26:59 +03:00
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2018-02-07 22:45:41 +03:00
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#pragma once
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#include <folly/Synchronized.h>
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#include <folly/experimental/StringKeyedUnorderedMap.h>
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#include "eden/fs/store/LocalStore.h"
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namespace facebook {
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namespace eden {
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/** An implementation of LocalStore that stores values in memory.
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* Stored values remain in memory for the lifetime of the
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* MemoryLocalStore instance.
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* MemoryLocalStore is thread safe, allowing concurrent reads and
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* writes from any thread.
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* */
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class MemoryLocalStore : public LocalStore {
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public:
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2019-05-15 22:15:49 +03:00
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explicit MemoryLocalStore();
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2018-02-07 22:45:41 +03:00
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void close() override;
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2018-05-31 20:39:49 +03:00
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void clearKeySpace(KeySpace keySpace) override;
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2018-08-10 21:09:48 +03:00
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void compactKeySpace(KeySpace keySpace) override;
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2020-01-21 20:59:17 +03:00
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StoreResult get(KeySpace keySpace, folly::ByteRange key) const override;
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bool hasKey(KeySpace keySpace, folly::ByteRange key) const override;
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void put(KeySpace keySpace, folly::ByteRange key, folly::ByteRange value)
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override;
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2018-02-07 22:45:41 +03:00
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std::unique_ptr<LocalStore::WriteBatch> beginWrite(
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size_t bufSize = 0) override;
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private:
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folly::Synchronized<std::vector<folly::StringKeyedUnorderedMap<std::string>>>
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storage_;
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};
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} // namespace eden
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} // namespace facebook
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