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49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2019 Telegram Systems LLP
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*/
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#pragma once
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#include "td/db/KeyValue.h"
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#include <map>
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namespace td {
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class MemoryKeyValue : public KeyValue {
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public:
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Result<GetStatus> get(Slice key, std::string &value) override;
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Status set(Slice key, Slice value) override;
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Status erase(Slice key) override;
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Result<size_t> count(Slice prefix) override;
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Status begin_transaction() override;
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Status commit_transaction() override;
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Status abort_transaction() override;
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std::unique_ptr<KeyValueReader> snapshot() override;
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std::string stats() const override;
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private:
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class Cmp : public std::less<> {
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public:
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using is_transparent = void;
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};
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std::map<std::string, std::string, Cmp> map_;
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int64 get_count_{0};
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};
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} // namespace td
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