mirror of https://gitee.com/bigwinds/arangodb
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2017 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Simon Grätzer
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/// @author Daniel Larkin-York
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_ROCKSDB_ENGINE_ROCKSDB_RECOVERY_MANAGER_H
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#define ARANGOD_ROCKSDB_ENGINE_ROCKSDB_RECOVERY_MANAGER_H 1
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#include <rocksdb/types.h>
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#include "ApplicationFeatures/ApplicationFeature.h"
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#include "Basics/Common.h"
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#include "StorageEngine/StorageEngine.h"
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namespace rocksdb {
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class TransactionDB;
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} // namespace rocksdb
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namespace arangodb {
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class RocksDBRecoveryManager final : public application_features::ApplicationFeature {
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public:
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explicit RocksDBRecoveryManager(application_features::ApplicationServer& server);
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static std::string featureName() { return "RocksDBRecoveryManager"; }
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void start() override;
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void runRecovery();
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RecoveryState recoveryState() const noexcept {
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return _recoveryState.load(std::memory_order_acquire);
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}
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/// @brief current recovery tick
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rocksdb::SequenceNumber recoveryTick() const noexcept {
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return _tick;
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}
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private:
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Result parseRocksWAL();
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protected:
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/// @brief rocksdb instance
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rocksdb::TransactionDB* _db;
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rocksdb::SequenceNumber _tick;
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std::atomic<RecoveryState> _recoveryState;
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};
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} // namespace arangodb
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#endif
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