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d23773e9b0
Summary: Simplify the definition and use of KeySpace and move it into its own header. Reviewed By: simpkins Differential Revision: D19353441 fbshipit-source-id: ef07677d927a48839b709711388abeb3c1ed9679
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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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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*/
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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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explicit MemoryLocalStore();
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void close() override;
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void clearKeySpace(KeySpace keySpace) override;
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void compactKeySpace(KeySpace keySpace) override;
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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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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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